{"id":3223,"date":"2025-09-26T15:05:00","date_gmt":"2025-09-26T07:05:00","guid":{"rendered":"https:\/\/www.chuxin-smt.com\/slug-a-comprehensive-guide-to-the-reflow-oven-cooling-zone\/"},"modified":"2026-07-17T19:01:26","modified_gmt":"2026-07-17T11:01:26","slug":"slug-a-comprehensive-guide-to-the-reflow-oven-cooling-zone","status":"publish","type":"post","link":"https:\/\/www.chuxin-smt.com\/ja\/slug-a-comprehensive-guide-to-the-reflow-oven-cooling-zone\/","title":{"rendered":"\u30ea\u30d5\u30ed\u30fc\u7089\u51b7\u5374\u30be\u30fc\u30f3\u306e\u7dcf\u5408\u30ac\u30a4\u30c9"},"content":{"rendered":"<p>\u201c`html<\/p>\n<h2 id=\"understandingtheimportanceofcoolinginreflowsoldering\">\u30ea\u30d5\u30ed\u30fc\u306f\u3093\u3060\u4ed8\u3051\u306b\u304a\u3051\u308b\u51b7\u5374\u306e\u91cd\u8981\u6027\u3092\u7406\u89e3\u3059\u308b<\/h2>\n<p>\u306e\u8907\u96d1\u306a\u632f\u308a\u4ed8\u3051\u306e\u4e2d\u3067 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/slug-a-deep-dive-into-the-reflow-soldering-process\/\">\u30ea\u30d5\u30ed\u30fc\u306f\u3093\u3060\u4ed8\u3051\u30d7\u30ed\u30bb\u30b9<\/a>, the final cooling phase is as pivotal as the initial preheating and reflow stages. This is the moment of truth where molten solder solidifies, forging the permanent electro-mechanical bonds that dictate the ultimate quality, performance, and reliability of the printed circuit board (PCB). The manner and rate at which the assembly is cooled have a profound and direct impact on the solder joint\u2019s microstructure, making this stage a critical control point for any electronics manufacturer.<\/p>\n<p>The primary objective during cooling is to cultivate a fine-grain structure within the solder. The cooling rate stands as the single most influential factor in determining the size of these grains. For modern lead-free solders, such as the widely used SAC (Tin-Silver-Copper) alloys, a rapid cooling rate of approximately 3\u20134\u00b0C per second is generally recommended. This quick solidification effectively \u201cfreezes\u201d the solder into a fine-grained, robust structure, which significantly enhances the joint\u2019s mechanical strength and improves its fatigue resistance over the product\u2019s entire operational lifetime, <a href=\"https:\/\/www.kester.com\/knowledge-base\/reflow-soldering-profile\">\u30b1\u30b9\u30bf\u30fc\u306e\u306f\u3093\u3060\u5c02\u9580\u5bb6\u306b\u3088\u308b\u3068<\/a>.<\/p>\n<p>\u9006\u306b\u3001\u3086\u3063\u304f\u308a\u3001\u306e\u3093\u3073\u308a\u3068\u3057\u305f\u51b7\u5374\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u3001\u3088\u308a\u5927\u304d\u304f\u7c97\u3044\u7c92\u304c\u5f62\u6210\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u71b1\u885d\u6483\u306e\u30ea\u30b9\u30af\u3092\u5373\u5ea7\u306b\u8efd\u6e1b\u3059\u308b\u306b\u306f\u6709\u76ca\u306b\u601d\u3048\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u6839\u672c\u7684\u306b\u5f31\u3044\u306f\u3093\u3060\u63a5\u5408\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u7c97\u3044\u7c92\u306e\u63a5\u5408\u90e8\u306f\u3001\u632f\u52d5\u3084\u71b1\u30b5\u30a4\u30af\u30eb\u306b\u3088\u308b\u81a8\u5f35\u30fb\u53ce\u7e2e\u306e\u7e70\u308a\u8fd4\u3057\u3068\u3044\u3063\u305f\u6a5f\u68b0\u7684\u30b9\u30c8\u30ec\u30b9\u3092\u53d7\u3051\u305f\u3068\u304d\u306b\u3001\u306f\u308b\u304b\u306b\u7834\u640d\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u6642\u9593\u304c\u7d4c\u3064\u306b\u3064\u308c\u3066\u3001\u3053\u306e\u3088\u3046\u306a\u5f31\u3044\u63a5\u5408\u90e8\u306f\u3001\u96fb\u5b50\u30a2\u30bb\u30f3\u30d6\u30ea\u5168\u4f53\u306e\u9577\u671f\u7684\u306a\u4fe1\u983c\u6027\u3068\u5b8c\u5168\u6027\u3092\u640d\u306a\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3001 <a href=\"https:\/\/blog.epectec.com\/how-the-cooling-rate-of-the-reflow-process-impacts-solder-joint-reliability\">\u30a8\u30da\u30c3\u30af\u30fb\u30a8\u30f3\u30b8\u30cb\u30a2\u30fc\u30c9\u30fb\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u30ba<\/a>.<\/p>\n<p>\u3057\u304b\u3057\u3001\u6025\u901f\u51b7\u5374\u306e\u8ffd\u6c42\u306b\u5371\u967a\u304c\u306a\u3044\u308f\u3051\u3067\u306f\u306a\u3044\u3002\u30a2\u30c3\u30bb\u30f3\u30d6\u30ea\u3092\u6025\u901f\u306b\u51b7\u5374\u3057\u3059\u304e\u308b\u3068\u3001\u3055\u307e\u3056\u307e\u306a\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002 <strong>\u71b1\u885d\u6483<\/strong>.PCB\u304c\u904e\u5ea6\u306e\u901f\u5ea6\u3067\u51b7\u5374\u3055\u308c\u308b\u3068\u3001FR-4\u30e9\u30df\u30cd\u30fc\u30c8\u3001\u9285\u30c8\u30ec\u30fc\u30b9\u3001\u591a\u69d8\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u542b\u3080\u69d8\u3005\u306a\u6750\u6599\u304c\u7570\u306a\u308b\u901f\u5ea6\u3067\u53ce\u7e2e\u3057\u307e\u3059\u3002\u3053\u306e\u71b1\u53ce\u7e2e\u306e\u4e0d\u4e00\u81f4\u306f\u3001\u30a2\u30bb\u30f3\u30d6\u30ea\u5168\u4f53\u306b\u751a\u5927\u306a\u7269\u7406\u7684\u30b9\u30c8\u30ec\u30b9\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u306f\u6df1\u523b\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3055\u307e\u3056\u307e\u306a\u6b20\u9665\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<ul>\n<li>\u65b0\u3057\u304f\u5f62\u6210\u3055\u308c\u305f\u306f\u3093\u3060\u63a5\u5408\u90e8\u306b\u767a\u751f\u3059\u308b\u30de\u30a4\u30af\u30ed\u30af\u30e9\u30c3\u30af\u3002<\/li>\n<li>\u7279\u306b\u30bb\u30e9\u30df\u30c3\u30af\u30fb\u30c1\u30c3\u30d7\u30fb\u30b3\u30f3\u30c7\u30f3\u30b5\u3084\u30dc\u30fc\u30eb\u30fb\u30b0\u30ea\u30c3\u30c9\u30fb\u30a2\u30ec\u30a4\uff08BGA\uff09\u306a\u3069\u306e\u9ad8\u611f\u5ea6\u90e8\u54c1\u306b\u4e0d\u53ef\u9006\u7684\u306a\u640d\u50b7\u3092\u4e0e\u3048\u308b\u3002<\/li>\n<li>PCB\u81ea\u4f53\u306b\u53cd\u308a\u304c\u751f\u3058\u3001\u7269\u7406\u7684\u306a\u5b8c\u5168\u6027\u304c\u640d\u306a\u308f\u308c\u308b\u3002<\/li>\n<\/ul>\n<p>\u5f93\u3063\u3066\u3001\u6700\u9069\u306a\u51b7\u5374\u901f\u5ea6\u3092\u9054\u6210\u3059\u308b\u3053\u3068\u306f\u3001\u5fae\u5999\u306a\u30d0\u30e9\u30f3\u30b9\u3092\u3068\u308b\u884c\u70ba\u3067\u3059\u3002\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u5f37\u56fa\u3067\u304d\u3081\u7d30\u304b\u3044\u306f\u3093\u3060\u69cb\u9020\u3092\u78ba\u4fdd\u3059\u308b\u306e\u306b\u5341\u5206\u306a\u901f\u3055\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u304c\u3001\u71b1\u5fdc\u529b\u3084\u90e8\u54c1\u306e\u640d\u50b7\u3092\u9632\u3050\u305f\u3081\u306b\u6b63\u78ba\u306b\u5236\u5fa1\u3059\u308b\u3053\u3068\u3082\u5fc5\u8981\u3067\u3059\u3002\u6700\u65b0\u306e <a href=\"https:\/\/www.chuxin-smt.com\/ja\/reflow-soldering-cooling-system-importance-optimization\/\">\u30ea\u30d5\u30ed\u30fc\u7089\u51b7\u5374\u30b7\u30b9\u30c6\u30e0<\/a> \u306f\u3001\u3053\u306e\u6bb5\u968e\u3092\u6b63\u78ba\u304b\u3064\u76f4\u7dda\u7684\u306b\u5236\u5fa1\u3067\u304d\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001\u3059\u3079\u3066\u306e\u30a2\u30bb\u30f3\u30d6\u30ea\u30fc\u304c\u4fe1\u983c\u3067\u304d\u308b\u9577\u6301\u3061\u3059\u308b\u88fd\u54c1\u306e\u5f37\u56fa\u306a\u57fa\u76e4\u306e\u4e0a\u306b\u69cb\u7bc9\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<h2 id=\"keyfactorsaffectingcoolingzoneperformance\">\u51b7\u5374\u30be\u30fc\u30f3\u306e\u6027\u80fd\u306b\u5f71\u97ff\u3059\u308b\u4e3b\u306a\u8981\u56e0<\/h2>\n<p>\u51b7\u5374\u306e\u6bb5\u968e\u306f\u3001\u3069\u306e\u3088\u3046\u306a\u5834\u5408\u3067\u3082\u91cd\u8981\u306a\u6bb5\u968e\u3067\u3042\u308b\u3002 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/slug-an-in-depth-guide-to-the-reflow-profile\/\">\u30ea\u30d5\u30ed\u30fc\u306f\u3093\u3060\u4ed8\u3051\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/a>\u306f\u3093\u3060\u63a5\u5408\u90e8\u306e\u6700\u7d42\u7684\u306a\u91d1\u5c5e\u7d44\u7e54\u3068\u6a5f\u68b0\u7684\u5f37\u5ea6\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002\u6700\u9069\u306a\u51b7\u5374\u901f\u5ea6\uff08\u901a\u5e38\u3001\u6bce\u79d23\uff5e4\u2103\uff09\u3092\u9054\u6210\u3059\u308b\u3053\u3068\u306f\u3001\u90e8\u54c1\u306e\u640d\u50b7\u3092\u9632\u3050\u3068\u540c\u6642\u306b\u3001\u6700\u5927\u9650\u306e\u8010\u4e45\u6027\u3092\u5b9f\u73fe\u3059\u308b\u5fae\u7d30\u7c92\u7d44\u7e54\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3001 <a href=\"https:\/\/www.smt-net.com\/news\/index.cfm?fuseaction=view_news&#038;news_id=14187\">SMT-Net\u306e\u3088\u3046\u306a\u696d\u754c\u8a8c\u304c\u5f37\u8abf\u3057\u3066\u3044\u308b\u70b9\u3067\u3042\u308b\u3002<\/a>. The efficiency of this process is not arbitrary; it is governed by several key variables within the reflow oven\u2019s cooling system.<\/p>\n<h3 id=\"convectionrates\">\u5bfe\u6d41\u901f\u5ea6<\/h3>\n<p>\u6700\u65b0\u306e\u30ea\u30d5\u30ed\u30fc\u7089\u306b\u304a\u3051\u308b\u71b1\u9664\u53bb\u306e\u4e3b\u306a\u65b9\u6cd5\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3042\u308b\u3002 <strong>\u5f37\u5236\u5bfe\u6d41<\/strong>\u6c17\u4f53\uff08\u5468\u56f2\u7a7a\u6c17\u307e\u305f\u306f\u7a92\u7d20\uff09\u3092\u7a4d\u6975\u7684\u306b\u5faa\u74b0\u3055\u305b\u3001PCB\u30a2\u30bb\u30f3\u30d6\u30ea\u304b\u3089\u71b1\u3092\u596a\u3046\u3002\u3053\u306e\u5bfe\u6d41\u901f\u5ea6\u306f\u3001\u6c17\u4f53\u306e\u4f53\u7a4d\u3068\u6d41\u901f\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3055\u308c\u3001\u51b7\u5374\u52b9\u7387\u3092\u5de6\u53f3\u3059\u308b\u6700\u3082\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002\u5bfe\u6d41\u901f\u5ea6\u304c\u901f\u3044\u307b\u3069\u3001\u71b1\u306e\u9664\u53bb\u304c\u901f\u304f\u306a\u308a\u3001PCB\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u51b7\u5374\u52fe\u914d\u304c\u6025\u306b\u306a\u308a\u307e\u3059\u3002 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/slug-mastering-the-pcb-reflow-temperature-profile-2\/\">\u30ea\u30d5\u30ed\u30fc\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/a>.\u5148\u9032\u7684\u306a\u30ea\u30d5\u30ed\u30fc\u7089\u306f\u3001\u4e0a\u90e8\u3068\u4e0b\u90e8\u306e\u51b7\u5374\u30d7\u30ec\u30ca\u30e0\u306e\u30d5\u30a1\u30f3\u56de\u8ee2\u6570\uff08RPM\uff09\u3092\u6b63\u78ba\u306b\u72ec\u7acb\u5236\u5fa1\u3067\u304d\u308b\u51b7\u5374\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u306f\u3001\u51e6\u7406\u3055\u308c\u308b\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u7279\u5b9a\u306e\u71b1\u8cea\u91cf\u3068\u90e8\u54c1\u30ec\u30a4\u30a2\u30a6\u30c8\u306b\u5408\u308f\u305b\u3066\u51b7\u5374\u901f\u5ea6\u3092\u304d\u3081\u7d30\u304b\u304f\u5fae\u8abf\u6574\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 id=\"coolanttypeandcondition\">\u30af\u30fc\u30e9\u30f3\u30c8\u306e\u7a2e\u985e\u3068\u72b6\u614b<\/h3>\n<p>\u51b7\u5374\u306b\u4f7f\u7528\u3055\u308c\u308b\u5a92\u4f53\uff08\u3057\u3070\u3057\u3070\u30af\u30fc\u30e9\u30f3\u30c8\u3068\u547c\u3070\u308c\u308b\uff09\u306f\u3001\u3082\u3046\u4e00\u3064\u306e\u91cd\u8981\u306a\u5909\u6570\u3067\u3042\u308b\u3002\u6700\u3082\u4e00\u822c\u7684\u306a\u30af\u30fc\u30e9\u30f3\u30c8\u306f\u3001\u5468\u56f2\u7a7a\u6c17\u3068\u7a92\u7d20\u306e2\u7a2e\u985e\u3067\u3001\u305d\u308c\u305e\u308c\u306b\u7570\u306a\u308b\u7279\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5468\u56f2\u306e\u7a7a\u6c17\uff1a<\/strong> \u3053\u308c\u306f\u3001\u6700\u3082\u7c21\u5358\u3067\u8cbb\u7528\u5bfe\u52b9\u679c\u306e\u9ad8\u3044\u51b7\u5374\u5a92\u4f53\u3067\u3059\u3002\u30aa\u30fc\u30d6\u30f3\u306f\u3001\u30d5\u30a3\u30eb\u30bf\u30fc\u3067\u308d\u904e\u3055\u308c\u305f\u5de5\u5834\u7a7a\u6c17\u3092\u53d6\u308a\u8fbc\u307f\u3001PCB\u4e0a\u3067\u5faa\u74b0\u3055\u305b\u305f\u5f8c\u3001\u6392\u6c17\u3057\u307e\u3059\u3002\u3053\u306e\u6d41\u5165\u7a7a\u6c17\u306e\u6e29\u5ea6\u3001\u6e7f\u5ea6\u3001\u6e05\u6d44\u5ea6\u306f\u3001\u51b7\u5374\u80fd\u529b\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u3001\u30d7\u30ed\u30bb\u30b9\u306e\u3070\u3089\u3064\u304d\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u7a92\u7d20\uff08N2\uff09\uff1a<\/strong> \u3092\u6d3b\u7528\u3057\u3066\u3044\u308b\u3002 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/why-nitrogen-is-necessary-in-reflow-oven-for-better-soldering\/\">\u7a92\u7d20\u96f0\u56f2\u6c17<\/a> \u51b7\u5374\u306e\u305f\u3081\u306b\u3001\u9ad8\u5ea6\u306b\u5236\u5fa1\u3055\u308c\u305f\u4e0d\u6d3b\u6027\u74b0\u5883\u3092\u4f5c\u308a\u51fa\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u9ad8\u6e29\u51b7\u5374\u6bb5\u968e\u3067\u306e\u306f\u3093\u3060\u63a5\u5408\u90e8\u3084\u90e8\u54c1\u30ea\u30fc\u30c9\u306e\u9178\u5316\u3092\u9632\u6b62\u3057\u3001\u3088\u308a\u5149\u6ca2\u306e\u3042\u308b\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u63a5\u5408\u90e8\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u7a92\u7d20\u3068\u7a7a\u6c17\u306f\u540c\u7b49\u306e\u71b1\u5bb9\u91cf\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u7a92\u7d20\u304c\u63d0\u4f9b\u3059\u308b\u4e0d\u6d3b\u6027\u74b0\u5883\u306f\u3001\u7279\u306b\u30d7\u30ed\u30bb\u30b9\u6e29\u5ea6\u304c\u9ad8\u3044\u307b\u3069\u9178\u5316\u306e\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308b\u925b\u30d5\u30ea\u30fc\u306f\u3093\u3060\u4ed8\u3051\u306e\u3088\u3046\u306a\u9ad8\u4fe1\u983c\u6027\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002 <a href=\"https:\/\/www.escomponents.com\/nine-questions-about-reflow-soldering-with-nitrogen-atmosphere\/\">[\u51fa\u5178\uff1aES\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\uff3d<\/a>.<\/li>\n<\/ul>\n<h3 id=\"physicalconfigurationofthecoolingmodule\">\u51b7\u5374\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u7269\u7406\u7684\u69cb\u6210<\/h3>\n<p>\u51b7\u5374\u30be\u30fc\u30f3\u81ea\u4f53\u306e\u5de5\u5b66\u7684\u30fb\u7269\u7406\u7684\u8a2d\u8a08\u306f\u3001\u305d\u306e\u6027\u80fd\u3068\u30d7\u30ed\u30bb\u30b9\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u5927\u304d\u304f\u5de6\u53f3\u3057\u307e\u3059\u3002\u51b7\u5374\u30bb\u30af\u30b7\u30e7\u30f3\u304c\u9577\u304f\u3001\u51b7\u5374\u30be\u30fc\u30f3\u304c\u591a\u3051\u308c\u3070\u591a\u3044\u307b\u3069\u3001\u52b9\u679c\u7684\u304b\u3064\u5236\u5fa1\u3055\u308c\u305f\u71b1\u9664\u53bb\u80fd\u529b\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u4e3b\u306a\u69cb\u6210\u8981\u7d20<\/p>\n<ul>\n<li><strong>\u51b7\u5374\u30ce\u30ba\u30eb\uff0f\u30d7\u30ec\u30f3\u30ca\u30e0\uff1a<\/strong> \u7a7a\u6c17\u307e\u305f\u306f\u7a92\u7d20\u30ce\u30ba\u30eb\u306e\u8a2d\u8a08\u3001\u6570\u91cf\u3001\u914d\u7f6e\u306f\u3001\u51b7\u5374\u5264\u304cPCB\u5168\u4f53\u306b\u3069\u306e\u7a0b\u5ea6\u5747\u4e00\u306b\u5206\u5e03\u3059\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u52b9\u679c\u7684\u306a\u8a2d\u8a08\u306f\u3001\u71b1\u8cea\u91cf\u306b\u95a2\u4fc2\u306a\u304f\u3001\u3059\u3079\u3066\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u4e00\u8cab\u3057\u305f\u51b7\u5374\u3092\u4fdd\u8a3c\u3057\u3001\u6b20\u9665\u306e\u539f\u56e0\u3068\u306a\u308b\u6e29\u5ea6\u52fe\u914d\u3092\u9632\u304e\u307e\u3059\u3002<\/li>\n<li><strong>\u71b1\u4ea4\u63db\u5668\u6280\u8853\uff1a<\/strong> \u9ad8\u6027\u80fd <a href=\"https:\/\/www.chuxin-smt.com\/ja\/reflow-soldering-cooling-system-importance-optimization\/\">\u30ea\u30d5\u30ed\u30fc\u7089\u51b7\u5374\u30b7\u30b9\u30c6\u30e0<\/a> \u591a\u304f\u306e\u5834\u5408\u3001\u6c34\u51b7\u5f0f\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u3088\u3046\u306a\u9ad8\u5ea6\u306a\u71b1\u4ea4\u63db\u5668\u304c\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u3002\u3053\u308c\u3089\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30e9\u30b8\u30a8\u30fc\u30bf\u30fc\u3092\u901a\u3057\u3066\u51b7\u6c34\u3092\u5faa\u74b0\u3055\u305b\u3001\u5bfe\u6d41\u30ac\u30b9\u3092\u5468\u56f2\u6e29\u5ea6\u3088\u308a\u304b\u306a\u308a\u4f4e\u3044\u6e29\u5ea6\u307e\u3067\u51b7\u5374\u3059\u308b\u3002\u3053\u306e\u6280\u8853\u306b\u3088\u308a\u3001\u5468\u56f2\u7a7a\u6c17\u3060\u3051\u3067\u9054\u6210\u3067\u304d\u308b\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u6025\u306a\u51b7\u5374\u901f\u5ea6\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u3088\u308a\u5e83\u3044\u30d7\u30ed\u30bb\u30b9\u30a6\u30a4\u30f3\u30c9\u30a6\u3068\u3001\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u3088\u308a\u5927\u304d\u306a\u5236\u5fa1\u304c\u63d0\u4f9b\u3055\u308c\u308b\u3002 <a href=\"https:\/\/www.electronics-cooling.com\/2005\/08\/pcb-reflow-soldering-process-and-thermal-management\/\">[\u51fa\u5178\uff1a\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u30fb\u30af\u30fc\u30ea\u30f3\u30b0\uff3d<\/a>.<\/li>\n<li><strong>\u4e0a\u4e0b\u72ec\u7acb\u51b7\u5374\uff1a<\/strong> \u30c8\u30c3\u30d7\u30b5\u30a4\u30c9\u3068\u30dc\u30c8\u30e0\u30b5\u30a4\u30c9\u306e\u51b7\u5374\u30d5\u30a1\u30f3\u3068\u6d41\u91cf\u3092\u500b\u5225\u306b\u5236\u5fa1\u3059\u308b\u6a5f\u80fd\u306f\u3001\u6700\u65b0\u306e\u88fd\u9020\u306b\u3068\u3063\u3066\u6975\u3081\u3066\u91cd\u8981\u3067\u3059\u3002\u3053\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001\u8907\u96d1\u306a\u4e21\u9762\u57fa\u677f\u3092\u30d0\u30e9\u30f3\u30b9\u3088\u304f\u51b7\u5374\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001PCB\u5168\u4f53\u306e\u6e29\u5ea6\u5dee\u304c\u8a31\u5bb9\u7bc4\u56f2\u5185\u306b\u53ce\u307e\u308b\u3088\u3046\u306b\u3057\u3066\u53cd\u308a\u3092\u9632\u6b62\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/li>\n<\/ul>\n<h2 id=\"optimizingyourreflowovenscoolingzoneforbetteryields\">Optimizing Your Reflow Oven\u2019s Cooling Zone for Better Yields<\/h2>\n<p>\u306f\u3093\u3060\u4ed8\u3051\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u51b7\u5374\u6bb5\u968e\u306f\u3001\u5f37\u529b\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u306f\u3093\u3060\u63a5\u5408\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u52a0\u71b1\u6bb5\u968e\u3068\u540c\u3058\u304f\u3089\u3044\u91cd\u8981\u3067\u3059\u3002\u51b7\u5374\u901f\u5ea6\u3092\u9069\u5207\u306b\u5236\u5fa1\u3059\u308b\u3053\u3068\u306f\u3001\u6b20\u9665\u3092\u9632\u6b62\u3057\u3001\u90e8\u54c1\u3078\u306e\u71b1\u5fdc\u529b\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u6700\u7d42\u7684\u306b\u88fd\u9020\u6b69\u7559\u307e\u308a\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u57fa\u672c\u3067\u3059\u3002\u6700\u9069\u5316\u3055\u308c\u305f\u51b7\u5374\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306f\u3001\u306f\u3093\u3060\u3092\u671b\u307e\u3057\u3044\u7d30\u7c92\u5fae\u7d30\u69cb\u9020\u306b\u51dd\u56fa\u3055\u305b\u3001\u5b8c\u6210\u3057\u305f\u63a5\u5408\u90e8\u306e\u6a5f\u68b0\u7684\u5f37\u5ea6\u3068\u8010\u75b2\u52b4\u6027\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/p>\n<h3 id=\"keycoolingparametersandtheirimpact\">\u4e3b\u306a\u51b7\u5374\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u305d\u306e\u5f71\u97ff<\/h3>\n<p>The primary function of the cooling zone is to bring the PCB assembly\u2019s temperature down to a safe handling level at a controlled, linear rate. This rate is critical and is typically recommended to be a linear ramp between <strong>\u6bce\u79d2-3\u2103\u3068-6<\/strong>.\u3053\u306e\u78ba\u7acb\u3055\u308c\u305f\u30d7\u30ed\u30bb\u30b9\u30a6\u30a3\u30f3\u30c9\u30a6\u304b\u3089\u9038\u8131\u3059\u308b\u3053\u3068\u306f\u3001\u54c1\u8cea\u3068\u4fe1\u983c\u6027\u306b\u91cd\u5927\u306a\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u51b7\u5374\u304c\u9045\u3059\u304e\u308b\uff1a<\/strong> A sluggish cooling rate (e.g., less than 2\u00b0C\/second) allows large, coarse grains to form in the solder joint\u2019s microstructure. This results in weaker joints that are more susceptible to failure under mechanical stress or thermal cycling. Furthermore, it prolongs the time that components are exposed to high temperatures, potentially degrading sensitive devices. A well-structured <a href=\"https:\/\/www.chuxin-smt.com\/ja\/slug-an-in-depth-guide-to-the-reflow-profile\/\">\u30ea\u30d5\u30ed\u30fc\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/a> \u3053\u306e\u6bb5\u968e\u3092\u6ce8\u610f\u6df1\u304f\u7ba1\u7406\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002<\/li>\n<li><strong>\u51b7\u5374\u304c\u65e9\u3059\u304e\u308b\uff1a<\/strong> \u904e\u5ea6\u306e\u6025\u51b7\u3001\u3059\u306a\u308f\u3061\u6025\u51b7\u306f\u3001\u6fc0\u3057\u3044\u71b1\u885d\u6483\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u90e8\u54c1\u3001\u7279\u306b\u5927\u578b\u306e\u30bb\u30e9\u30df\u30c3\u30af\u30fb\u30b3\u30f3\u30c7\u30f3\u30b5\u30fc\u3084BGA\u306b\u3068\u3063\u3066\u5927\u304d\u306a\u30ea\u30b9\u30af\u3067\u3042\u308a\u3001\u5185\u90e8\u3067\u30af\u30e9\u30c3\u30af\u304c\u5165\u3063\u305f\u308a\u5272\u308c\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 <a href=\"https:\/\/www.epectec.com\/articles\/importance-of-cooling-process-in-reflow-soldering.html\">EpecTec\u306f\u6b21\u306e\u3088\u3046\u306b\u8aac\u660e\u3057\u3066\u3044\u308b\u3002<\/a>\u90e8\u54c1\u3001\u30d7\u30ea\u30f3\u30c8\u57fa\u677f\u3001\u306f\u3093\u3060\u306e\u71b1\u81a8\u5f35\u4fc2\u6570\uff08CTE\uff09\u304c\u7570\u306a\u308b\u305f\u3081\u3001\u71b1\u885d\u6483\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u3053\u306e\u30df\u30b9\u30de\u30c3\u30c1\u306f\u3001\u306f\u3093\u3060\u30d5\u30a3\u30ec\u30c3\u30c8\u306e\u6d6e\u304d\u4e0a\u304c\u308a\u3001\u30de\u30a4\u30af\u30ed\u30af\u30e9\u30c3\u30af\u3001\u9577\u671f\u4fe1\u983c\u6027\u306e\u4f4e\u4e0b\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3 id=\"stepstofinetuneyourcoolingprofile\">\u51b7\u5374\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u3092\u5fae\u8abf\u6574\u3059\u308b\u30b9\u30c6\u30c3\u30d7<\/h3>\n<p>\u51b7\u5374\u30be\u30fc\u30f3\u3092\u6700\u9069\u5316\u3059\u308b\u306b\u306f\u3001\u88c5\u7f6e\u306e\u8a2d\u5b9a\u3092\u8abf\u6574\u3057\u3066\u3001\u7279\u5b9a\u306e\u30a2\u30bb\u30f3\u30d6\u30ea\u306b\u671b\u307e\u3057\u3044\u71b1\u964d\u4e0b\u3092\u9054\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u30d7\u30ed\u30bb\u30b9\u3092\u6539\u5584\u3059\u308b\u305f\u3081\u306e\u5b9f\u8df5\u7684\u306a\u30b9\u30c6\u30c3\u30d7\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\n<ol>\n<li><strong>\u30d9\u30fc\u30b9\u30e9\u30a4\u30f3\u30fb\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u3092\u78ba\u7acb\u3059\u308b\uff1a<\/strong> \u307e\u305a\u3001\u30b5\u30fc\u30de\u30eb\u30fb\u30d7\u30ed\u30d5\u30a1\u30a4\u30e9\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001PCB\u4e0a\u306e\u8907\u6570\u306e\u30dd\u30a4\u30f3\u30c8\u3067\u73fe\u5728\u306e\u51b7\u5374\u901f\u5ea6\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002\u71b1\u306e\u5f71\u97ff\u3092\u53d7\u3051\u3084\u3059\u3044\u90e8\u54c1\u3084\u305d\u306e\u5468\u8fba\u3001\u654f\u611f\u306a\u30c7\u30d0\u30a4\u30b9\u306e\u8fd1\u304f\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5834\u6240\u3092\u30e2\u30cb\u30bf\u30fc\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/li>\n<li><strong>\u30d5\u30a1\u30f3\u30b9\u30d4\u30fc\u30c9\u3092\u8abf\u6574\u3059\u308b\uff1a<\/strong> \u307b\u3068\u3093\u3069\u306e\u30ea\u30d5\u30ed\u30fc\u7089\u306f\u3001\u51b7\u5374\u30be\u30fc\u30f3\u306b\u5bfe\u6d41\u30d5\u30a1\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002\u30d5\u30a1\u30f3\u306e\u56de\u8ee2\u6570\u3092\u4e0a\u3052\u308b\u3068\u51b7\u5374\u901f\u5ea6\u304c\u901f\u304f\u306a\u308a\u3001\u4e0b\u3052\u308b\u3068\u9045\u304f\u306a\u308a\u307e\u3059\u3002\u5c11\u3057\u305a\u3064\u8abf\u6574\u3057\u3001\u305d\u306e\u90fd\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u518d\u6e2c\u5b9a\u3057\u3066\u3001\u5168\u4f53\u7684\u306b\u671b\u307e\u3057\u3044\u901f\u5ea6\u306b\u306a\u308b\u307e\u3067\u8abf\u6574\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u7a92\u7d20\u3092\u9069\u5207\u306b\u5229\u7528\u3059\u308b\uff1a<\/strong> \u4e00\u65b9 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/why-nitrogen-is-necessary-in-reflow-oven-for-better-soldering\/\">\u30ea\u30d5\u30ed\u30fc\u7089\u3067\u306e\u7a92\u7d20\u4f7f\u7528<\/a> \u306f\u3001\u6fe1\u308c\u6027\u3092\u5411\u4e0a\u3055\u305b\u3001\u9178\u5316\u3092\u9632\u3050\u306e\u306b\u512a\u308c \u3066\u3044\u308b\u304c\u3001\u7a7a\u6c17\u306b\u6bd4\u3079\u3066\u71b1\u4f1d\u9054\u52b9\u7387\u304c\u308f\u305a\u304b\u306b\u9ad8\u3044\u305f \u3081\u3001\u51b7\u5374\u901f\u5ea6\u3092\u4e0a\u3052\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002\u7a92\u7d20\u96f0\u56f2\u6c17\u3067\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u904e\u51b7\u5374\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u30d5\u30a1\u30f3\u306e\u56de\u8ee2\u6570\u3092\u4e0b\u3052\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3001 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/reflow-soldering-cooling-system-importance-optimization\/\">\u30d7\u30ed\u30bb\u30b9\u5236\u5fa1\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u8003\u616e\u4e8b\u9805<\/a>.<\/li>\n<li><strong>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u56fa\u6709\u306e\u30cb\u30fc\u30ba\u306b\u5bfe\u5fdc\u3059\u308b\uff1a<\/strong> For components highly sensitive to thermal stress like BGAs, a \u201ctwo-stage\u201d cooling approach can be beneficial. This involves a slower initial cooling rate down to just below the solder\u2019s solidus temperature, followed by a slightly faster rate to cool to room temperature. This nuanced approach helps minimize the risk of defects like component cracking and solder joint fractures <a href=\"https:\/\/www.kicthermal.com\/wp-content\/uploads\/2015\/01\/Proper-Cooling-Rates-in-Lead-Free-Soldering.pdf\">[\u51fa\u5178\uff1aKIC\u30b5\u30fc\u30de\u30eb\uff3d<\/a>.<\/li>\n<li><strong>\u3088\u304f\u3042\u308b\u6b20\u9665\u3092\u9632\u3050\uff1a<\/strong> \u5236\u5fa1\u3055\u308c\u305f\u51b7\u5374\u306f\u3001\u6b20\u9665\u9632\u6b62\u306e\u4e3b\u8981\u306a\u624b\u6bb5\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u51b7\u5374\u6bb5\u968e\u306b\u5165\u3063\u305f\u90e8\u54c1\u5168\u4f53\u306b\u71b1\u7684\u4e0d\u5747\u8861\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001\u30c8\u30f3\u30d6\u30b9\u30c8\u30fc\u30cb\u30f3\u30b0\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5747\u4e00\u306a\u51b7\u5374\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u540c\u69d8\u306b\u3001\u9069\u5207\u306a\u51b7\u5374\u901f\u5ea6\u306f\u3001\u306f\u3093\u3060\u63a5\u5408\u90e8\u304c\u30d1\u30c3\u30c9\u3088\u308a\u5148\u306b\u51dd\u56fa\u3057\u3001\u57fa\u677f\u306e\u53cd\u308a\u306b\u3088\u308b\u5265\u96e2\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u306e\u3042\u308b\u925b\u30d5\u30ea\u30fc\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u30d5\u30a3\u30ec\u30c3\u30c8\u30ea\u30d5\u30c6\u30a3\u30f3\u30b0\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002<\/li>\n<\/ol>\n<p>\u6ce8\u610f\u6df1\u304f <a href=\"https:\/\/www.chuxin-smt.com\/ja\/reflow-oven-temperature-profiling-soldering-defect-solutions\/\">\u51b7\u5374\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u76e3\u8996\u3068\u8abf\u6574<\/a>\u88fd\u9020\u696d\u8005\u306f\u3001\u71b1\u5fdc\u529b\u3092\u9632\u6b62\u3057\u3001\u4e00\u822c\u7684\u306a\u306f\u3093\u3060\u4ed8\u3051\u306e\u6b20\u9665\u3092\u6392\u9664\u3057\u3001\u3088\u308a\u9ad8\u54c1\u8cea\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u96fb\u5b50\u30a2\u30bb\u30f3\u30d6\u30ea\u3092\u4e00\u8cab\u3057\u3066\u88fd\u9020\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 id=\"troubleshootingcommoncoolingzoneissues\">\u51b7\u5374\u30be\u30fc\u30f3\u306e\u4e00\u822c\u7684\u306a\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h2>\n<p>\u30af\u30fc\u30ea\u30f3\u30b0\u30be\u30fc\u30f3\u306f\u3001\u6700\u5f8c\u306e\u3001\u3057\u304b\u3057\u6975\u3081\u3066\u91cd\u8981\u306a\u6bb5\u968e\u3067\u3042\u308b\u3002 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/slug-a-deep-dive-into-the-reflow-soldering-process\/\">\u30ea\u30d5\u30ed\u30fc\u306f\u3093\u3060\u4ed8\u3051\u30d7\u30ed\u30bb\u30b9<\/a>\u306f\u3093\u3060\u3092\u51dd\u56fa\u3055\u305b\u3001\u5f37\u56fa\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u63a5\u7d9a\u3092\u5f62\u6210\u3059\u308b\u5f79\u5272\u3092\u62c5\u3046\u3002\u3053\u306e\u6bb5\u968e\u304c\u9069\u5207\u306b\u6700\u9069\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u3001\u30b3\u30b9\u30c8\u306e\u304b\u304b\u308b\u3055\u307e\u3056\u307e\u306a\u6b20\u9665\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u4e00\u822c\u7684\u306a\u554f\u984c\u3092\u7279\u5b9a\u3057\u3001\u89e3\u6c7a\u3059\u308b\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u9ad8\u54c1\u8cea\u306e\u751f\u7523\u3092\u7dad\u6301\u3057\u3001\u624b\u623b\u308a\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u305f\u3081\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 id=\"1insufficientorslowcooling\">1.\u51b7\u5374\u304c\u4e0d\u5341\u5206\u307e\u305f\u306f\u9045\u3044<\/h3>\n<p>\u9069\u5207\u306a\u51b7\u5374\u901f\u5ea6\u306f\u3001\u306f\u3093\u3060\u306b\u5f37\u5ea6\u3068\u8010\u4e45\u6027\u3092\u4e0e\u3048\u308b\u5fae\u7d30\u69cb\u9020\u3092\u5f62\u6210\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u51b7\u5374\u304c\u4e0d\u5341\u5206\u3060\u3068\u3001\u63a5\u5408\u90e8\u304c\u5f31\u304f\u306a\u3063\u305f\u308a\u3001\u3082\u308d\u304f\u306a\u3063\u305f\u308a\u3001\u9ad8\u6e29\u306b\u9577\u6642\u9593\u3055\u3089\u3055\u308c\u308b\u3053\u3068\u3067\u90e8\u54c1\u304c\u640d\u50b7\u3057\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u8b58\u5225\uff1a<\/strong> \u306f\u3093\u3060\u63a5\u5408\u90e8\u306f\u3001\u660e\u308b\u304f\u8f1d\u304f\u306e\u3067\u306f\u306a\u304f\u3001\u304f\u3059\u3093\u3060\u308a\u3001\u66c7\u3063\u305f\u308a\u3001\u7c92\u72b6\u306b\u898b\u3048\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u90e8\u54c1\u306b\u71b1\u306b\u3088\u308b\u640d\u50b7\u3084\u5909\u8272\u306e\u5146\u5019\u304c\u898b\u3089\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u4e3b\u306a\u6307\u6a19\u306f\u3001\u63a8\u5968\u51b7\u5374\u52fe\u914d\u3092\u6e80\u305f\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3067\u3059\u3002 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/slug-mastering-the-pcb-reflow-temperature-profile-2\/\">\u30ea\u30d5\u30ed\u30fc\u6e29\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/a>.<\/li>\n<li><strong>\u539f\u56e0\u304c\u3042\u308b\uff1a<\/strong> \u4e00\u822c\u7684\u306a\u539f\u56e0\u3068\u3057\u3066\u306f\u3001\u51b7\u5374\u30d5\u30a1\u30f3\u306e\u6545\u969c\u3084\u6c5a\u308c\u3001\u30aa\u30fc\u30d6\u30f3\u8a2d\u5b9a\u306e\u8aa4\u308a\u3001\u30d5\u30a3\u30eb\u30bf\u30fc\u306e\u76ee\u8a70\u307e\u308a\u3001\u51b7\u5374\u52b9\u7387\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u5de5\u5834\u5468\u56f2\u6e29\u5ea6\u306e\u7570\u5e38\u306a\u9ad8\u3055\u306a\u3069\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002 <a href=\"https:\/\/www.kicthermal.com\/wp-content\/uploads\/2021\/02\/Troubleshooting-the-Reflow-Process.pdf\">[\u51fa\u5178\uff1aKIC\u30b5\u30fc\u30de\u30eb\uff3d<\/a>.<\/li>\n<li><strong>\u89e3\u6c7a\u7b56<\/strong>  <\/li>\n<li><strong>\u51b7\u5374\u901f\u5ea6\u3092\u78ba\u8a8d\u3059\u308b\uff1a<\/strong> \u51b7\u5374\u901f\u5ea6\u304c\u7406\u60f3\u7684\u306a\u7bc4\u56f2\u5185\u306b\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002\u901a\u5e38\u3001-2\u2103\uff5e-4\u2103\/\u79d2\u306e\u9593\u3067\u3042\u308b\u3002\u6bce\u79d2-2\u2103\u3088\u308a\u9045\u3044\u901f\u5ea6\u3067\u306f\u3001\u63a5\u5408\u90e8\u304c\u5f31\u304f\u3001\u3082\u308d\u304f\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u3002 <a href=\"https:\/\/blog.aimsolder.com\/archive\/the-importance-of-the-cooling-rate-in-the-reflow-profile\/\">[\u51fa\u5178\uff1aAIM\u306f\u3093\u3060\uff3d<\/a>.  <\/li>\n<li><strong>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u884c\u3046\uff1a<\/strong> \u5b9a\u671f\u7684\u306b\u51b7\u5374\u30d5\u30a1\u30f3\u3001\u30d7\u30ec\u30ca\u30e0\u3001\u6392\u6c17\u30b7\u30b9\u30c6\u30e0\u3092\u70b9\u691c\u3057\u3001\u6e05\u6383\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/daily-maintenance-cleaning-process-reflow-ovens-guide\/\">\u65e5\u8ab2<\/a> \u6700\u9069\u306a\u30a8\u30a2\u30d5\u30ed\u30fc\u3092\u78ba\u4fdd\u3059\u308b\u3002  <\/li>\n<li><strong>\u6392\u6c17\u306e\u6700\u9069\u5316\uff1a<\/strong> Check that the oven\u2019s exhaust draw is properly balanced. Excessive exhaust can pull heat from the final heated zones, while insufficient exhaust can hinder cooling efficiency.<\/li>\n<\/ul>\n<h3 id=\"2thermalshockandcomponentcracking\">2.\u71b1\u885d\u6483\u3068\u90e8\u54c1\u5272\u308c<\/h3>\n<p>\u51b7\u5374\u901f\u5ea6\u304c\u9045\u3044\u3053\u3068\u306f\u554f\u984c\u3067\u3059\u304c\u3001\u904e\u5ea6\u306b\u901f\u3044\u51b7\u5374\u901f\u5ea6\u306f\u3001\u71b1\u885d\u6483\u3068\u3044\u3046\u91cd\u5927\u306a\u30ea\u30b9\u30af\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001PCB\u4e0a\u306e\u7570\u306a\u308b\u6750\u6599\u304c\u7570\u306a\u308b\u901f\u5ea6\u3067\u53ce\u7e2e\u3057\u3001\u81f4\u547d\u7684\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u6545\u969c\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u5de8\u5927\u306a\u6a5f\u68b0\u7684\u30b9\u30c8\u30ec\u30b9\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u8b58\u5225\uff1a<\/strong> \u3053\u306e\u554f\u984c\u306f\u3001\u306f\u3093\u3060\u63a5\u5408\u90e8\u306e\u30de\u30a4\u30af\u30ed\u30af\u30e9\u30c3\u30af\u3084\u3001\u3088\u308a\u4e00\u822c\u7684\u306b\u306f\u3001\u90e8\u54c1\u3001\u7279\u306b\u7a4d\u5c64\u30bb\u30e9\u30df\u30c3\u30af\u30c1\u30c3\u30d7\u30b3\u30f3\u30c7\u30f3\u30b5\uff08MLCC\uff09\u306e\u7834\u640d\u3068\u3057\u3066\u73fe\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u3053\u308c\u3089\u306e\u30af\u30e9\u30c3\u30af\u306f\u8089\u773c\u3067\u306f\u898b\u3048\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u6f5c\u5728\u7684\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u6545\u969c\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u539f\u56e0\u304c\u3042\u308b\uff1a<\/strong> The cooling rate is too aggressive, exceeding the component manufacturer\u2019s specifications (often a maximum of 4\u00b0C per second). The problem is rooted in the difference in the Coefficient of Thermal Expansion (CTE) between the ceramic component body and the FR-4 PCB substrate <a href=\"https:\/\/www.escomponents.com\/Content\/Images\/uploaded\/Handling-Soldering-Guideline.pdf\">[\u51fa\u5178\uff1aES\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\uff3d<\/a>.<\/li>\n<li><strong>\u89e3\u6c7a\u7b56<\/strong>  <\/li>\n<li><strong>\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u3092\u8abf\u6574\u3059\u308b\uff1a<\/strong> \u51b7\u5374\u30be\u30fc\u30f3\u306e\u30d5\u30a1\u30f3\u901f\u5ea6\u3092\u4e0b\u3052\u3066\u3001\u3088\u308a\u7de9\u3084\u304b\u306a\u6e29\u5ea6\u4f4e\u4e0b\u3092\u5b9f\u73fe\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u63a8\u5968\u3055\u308c\u308b\u6700\u5927\u51b7\u5374\u7387\u306b\u3064\u3044\u3066\u306f\u3001\u5fc5\u305a\u30bd\u30eb\u30c0\u30fc\u30da\u30fc\u30b9\u30c8\u3068\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306e\u4e21\u65b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002  <\/li>\n<li><strong>\u5747\u4e00\u306a\u51b7\u5374\u3092\u4fdd\u8a3c\u3059\u308b\uff1a<\/strong> \u71b1\u5fdc\u529b\u3092\u60aa\u5316\u3055\u305b\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u6025\u6fc0\u306a\u6e29\u5ea6\u52fe\u914d\u3092\u9632\u3050\u305f\u3081\u3001PCB\u5168\u4f53\u306b\u308f\u305f\u3063\u3066\u5747\u4e00\u306b\u51b7\u5374\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<h3 id=\"3tombstoning\">3.\u5893\u77f3<\/h3>\n<p>\u30c8\u30a5\u30fc\u30e0\u30b9\u30c8\u30fc\u30cb\u30f3\u30b0\uff08\u53d7\u52d5\u90e8\u54c1\u304c\u4e00\u7aef\u6301\u3061\u4e0a\u304c\u3063\u3066\u5782\u76f4\u306b\u7acb\u3064\u73fe\u8c61\uff09\u306f\u3001\u6db2\u76f8\u4e2d\u306e\u4e0d\u5747\u4e00\u306a\u6fe1\u308c\u529b\u306b\u8d77\u56e0\u3059\u308b\u3053\u3068\u304c\u307b\u3068\u3093\u3069\u3067\u3042\u308b\u3002\u3057\u304b\u3057\u3001\u51b7\u5374\u30be\u30fc\u30f3\u304c\u4e00\u56e0\u3068\u306a\u308b\u3053\u3068\u3082\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u8b58\u5225\uff1a<\/strong> \u4e00\u822c\u7684\u306b\u5c0f\u3055\u306a\u62b5\u6297\u5668\u3084\u30b3\u30f3\u30c7\u30f3\u30b5\u30fc\u306a\u3069\u306e\u90e8\u54c1\u304c\u3001\u5893\u77f3\u306e\u3088\u3046\u306b\u4e00\u65b9\u306e\u7aef\u306b\u7acb\u3063\u3066\u3044\u308b\u3002<\/li>\n<li><strong>\u539f\u56e0\u304c\u3042\u308b\uff1a<\/strong> \u4e00\u65b9\u306e\u306f\u3093\u3060\u30d1\u30c3\u30c9\u304c\u51b7\u5374\u30be\u30fc\u30f3\u5185\u3067\u4ed6\u65b9\u3088\u308a\u3082\u8457\u3057\u304f\u901f\u304f\u51dd\u56fa\u3059\u308b\u3068\u3001\u3082\u3046\u4e00\u65b9\u306e\u30d1\u30c3\u30c9\u4e0a\u306e\u307e\u3060\u6eb6\u878d\u3057\u3066\u3044\u306a\u3044\u306f\u3093\u3060\u306e\u8868\u9762\u5f35\u529b\u306b\u3088\u3063\u3066\u90e8\u54c1\u304c\u4e0a\u65b9\u306b\u5f15\u3063\u5f35\u3089\u308c\u3001\u6d6e\u304d\u4e0a\u304c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u3053\u308c\u3089\u306e\u529b\u304c\u3088\u308a\u5927\u304d\u306a\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027\u306e\u3042\u308b\u3001\u5c0f\u578b\u3067\u4f4e\u8cea\u91cf\u306e\u90e8\u54c1\u3067\u3088\u308a\u4e00\u822c\u7684\u3067\u3059\u3002 <a href=\"https:\/\/smt.iconnect007.com\/index.php\/article\/117565\/the-tombstone-effect\/117568\/?skin=smt\">[\u51fa\u5178\uff1aSMT007\u30de\u30ac\u30b8\u30f3\uff3d<\/a>.<\/li>\n<li><strong>\u89e3\u6c7a\u7b56<\/strong>  <\/li>\n<li><strong>\u51b7\u5374\u901f\u5ea6\u3092\u7de9\u3084\u304b\u306b\u3059\u308b\uff1a<\/strong> \u4e00\u822c\u306b\u3001\u6025\u901f\u51b7\u5374\u306f\u63a5\u5408\u5f37\u5ea6\u306e\u305f\u3081\u306b\u671b\u307e\u3057\u3044\u304c\u3001\u904e\u5ea6\u306a\u51b7\u5374\u901f\u5ea6\u306f\u3001\u30c8\u30f3\u30d6\u30b9\u30c8\u30fc\u30cb\u30f3\u30b0\u306e\u539f\u56e0\u3068\u306a\u308b\u6e29\u5ea6\u4e0d\u5747\u8861\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u51b7\u5374\u901f\u5ea6\u3092\u308f\u305a\u304b\u306b\u4e0b\u3052\u308b\u3053\u3068\u3067\u3001\u4e21\u30d1\u30c3\u30c9 \u3092\u3088\u308a\u5747\u4e00\u306b\u51dd\u56fa\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002  <\/li>\n<li><strong>\u5168\u4f53\u7684\u306a\u30d7\u30ed\u30d5\u30a3\u30fc\u30eb\u3092\u898b\u76f4\u3059\uff1a<\/strong> \u591a\u304f\u306e\u5834\u5408\u3001\u6839\u672c\u7684\u306a\u539f\u56e0\u306f\u30d7\u30ed\u30bb\u30b9\u306e\u65e9\u3044\u6bb5\u968e\u306b\u3042\u308b\u3002 <a href=\"https:\/\/www.chuxin-smt.com\/ja\/reflow-oven-temperature-profiling-soldering-defect-solutions\/\">\u6e29\u5ea6\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u5206\u6790<\/a>.\u30ea\u30d5\u30ed\u30fc\u30b9\u30d1\u30a4\u30af\u306e\u524d\u306b\u3001\u3059\u3079\u3066\u306e\u90e8\u54c1\u304c\u5747\u4e00\u306a\u6e29\u5ea6\u306b\u306a\u308b\u3088\u3046\u306b\u3001\u9069\u5207\u306a\u4e88\u71b1\u30be\u30fc\u30f3\u3068\u30bd\u30fc\u30af\u30be\u30fc\u30f3\u304c\u8a2d\u7f6e\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n<\/ul>\n<h2 id=\"sources\">\u60c5\u5831\u6e90<\/h2>\n<ul>\n<li><a href=\"https:\/\/blog.aimsolder.com\/archive\/the-importance-of-the-cooling-rate-in-the-reflow-profile\/\">AIM Solder \u2013 The Importance of the Cooling Rate in the Reflow Profile<\/a><\/li>\n<li><a href=\"https:\/\/www.chuxin-smt.com\/ja\/slug-a-deep-dive-into-the-reflow-soldering-process\/\">ChuXin SMT \u2013 A Deep Dive into the Reflow Soldering Process<\/a><\/li>\n<li><a href=\"https:\/\/www.chuxin-smt.com\/ja\/daily-maintenance-cleaning-process-reflow-ovens-guide\/\">ChuXin SMT \u2013 Daily Maintenance &#038; Cleaning Process of Reflow Ovens: A Comprehensive Guide<\/a><\/li>\n<li><a href=\"https:\/\/www.chuxin-smt.com\/ja\/slug-an-in-depth-guide-to-the-reflow-profile\/\">ChuXin SMT \u2013 An In-Depth Guide to the Reflow Profile<\/a><\/li>\n<li><a href=\"https:\/\/www.chuxin-smt.com\/ja\/slug-mastering-the-pcb-reflow-temperature-profile-2\/\">ChuXin SMT \u2013 Mastering the PCB Reflow Temperature Profile<\/a><\/li>\n<li><a href=\"https:\/\/www.chuxin-smt.com\/ja\/reflow-oven-temperature-profiling-soldering-defect-solutions\/\">ChuXin SMT \u2013 Reflow Oven Temperature Profiling: Comprehensive Soldering Defect Solutions<\/a><\/li>\n<li><a href=\"https:\/\/www.chuxin-smt.com\/ja\/reflow-soldering-cooling-system-importance-optimization\/\">ChuXin SMT \u2013 The Importance of the Cooling System in Reflow Ovens and How to Optimize It<\/a><\/li>\n<li><a href=\"https:\/\/www.chuxin-smt.com\/ja\/why-nitrogen-is-necessary-in-reflow-oven-for-better-soldering\/\">ChuXin SMT \u2013 Why is Nitrogen Necessary in a Reflow Oven for Better Soldering?<\/a><\/li>\n<li><a href=\"https:\/\/www.electronics-cooling.com\/2005\/08\/pcb-reflow-soldering-process-and-thermal-management\/\">Electronics Cooling \u2013 PCB Reflow Soldering Process and Thermal Management<\/a><\/li>\n<li><a href=\"https:\/\/blog.epectec.com\/how-the-cooling-rate-of-the-reflow-process-impacts-solder-joint-reliability\">Epec Engineered Technologies \u2013 How the Cooling Rate of the Reflow Process Impacts Solder Joint Reliability<\/a><\/li>\n<li><a href=\"https:\/\/www.epectec.com\/articles\/importance-of-cooling-process-in-reflow-soldering.html\">EpecTec \u2013 The Critical Importance of the Cooling Process in Reflow Soldering<\/a><\/li>\n<li><a href=\"https:\/\/www.escomponents.com\/Content\/Images\/uploaded\/Handling-Soldering-Guideline.pdf\">ES Components \u2013 Handling and Soldering Guideline for Surface Mount Devices (PDF)<\/a><\/li>\n<li><a href=\"https:\/\/www.escomponents.com\/nine-questions-about-reflow-soldering-with-nitrogen-atmosphere\/\">ES Components \u2013 Nine Questions About Reflow Soldering with a Nitrogen Atmosphere<\/a><\/li>\n<li><a href=\"https:\/\/www.kester.com\/knowledge-base\/reflow-soldering-profile\">Kester \u2013 Reflow Soldering Profile<\/a><\/li>\n<li><a href=\"https:\/\/www.kicthermal.com\/wp-content\/uploads\/2015\/01\/Proper-Cooling-Rates-in-Lead-Free-Soldering.pdf\">KIC Thermal \u2013 Proper Cooling Rates in Lead-Free Soldering (PDF)<\/a><\/li>\n<li><a href=\"https:\/\/www.kicthermal.com\/wp-content\/uploads\/2021\/02\/Troubleshooting-the-Reflow-Process.pdf\">KIC Thermal \u2013 Troubleshooting the Reflow Process (PDF)<\/a><\/li>\n<li><a href=\"https:\/\/smt.iconnect007.com\/index.php\/article\/117565\/the-tombstone-effect\/117568\/?skin=smt\">SMT007 Magazine \u2013 The Tombstone Effect<\/a><\/li>\n<li><a href=\"https:\/\/www.smt-net.com\/news\/index.cfm?fuseaction=view_news&#038;news_id=14187\">SMT-Net \u2013 The Importance of the Cooling Rate in the Reflow Profile<\/a><\/li>\n<\/ul>\n<p>\u201c`<\/p>","protected":false},"excerpt":{"rendered":"<p>\u201c`html Understanding the Importance of Cooling in Reflow Soldering In the complex choreography of the reflow soldering process, the final [&hellip;]<\/p>","protected":false},"author":1,"featured_media":3222,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"categories":[1],"tags":[],"class_list":["post-3223","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-company-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/posts\/3223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/comments?post=3223"}],"version-history":[{"count":0,"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/posts\/3223\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/media\/3222"}],"wp:attachment":[{"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/media?parent=3223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/categories?post=3223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/ja\/wp-json\/wp\/v2\/tags?post=3223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}