{"id":2231,"date":"2025-02-21T14:37:12","date_gmt":"2025-02-21T06:37:12","guid":{"rendered":"https:\/\/www.chuxin-smt.com\/?p=2231"},"modified":"2025-08-02T10:22:32","modified_gmt":"2025-08-02T02:22:32","slug":"nitrogen-reflow-vs-air-reflow-uncovering-the-soldering-secrets-of-high-end-electronics-manufacturing","status":"publish","type":"post","link":"https:\/\/www.chuxin-smt.com\/sl\/nitrogen-reflow-vs-air-reflow-uncovering-the-soldering-secrets-of-high-end-electronics-manufacturing\/","title":{"rendered":"Ponovni pretok du\u0161ika v primerjavi s ponovnim pretokom zraka: Odkrivanje skrivnosti spajkanja v proizvodnji visokokakovostne elektronike"},"content":{"rendered":"<p>&nbsp;<\/p>\n<picture><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-2232 webpexpress-processed\" title=\"Ponovni pretok du\u0161ika v primerjavi s ponovnim pretokom zraka: S&amp;M Co.Ltd.: Odkrivanje skrivnosti spajkanja v proizvodnji vrhunske elektronike - S&amp;M Co.Ltd.\" src=\"https:\/\/www.chuxin-smt.com\/wp-content\/uploads\/2025\/02\/1740119257-%E5%9B%9E%E6%B5%81%E7%84%8A-scaled.jpg\" sizes=\"(max-width: 2560px) 100vw, 2560px\" srcset=\"https:\/\/www.chuxin-smt.com\/wp-content\/uploads\/2025\/02\/1740119257-\u56de\u6d41\u710a-scaled.jpg 2560w, https:\/\/www.chuxin-smt.com\/wp-content\/uploads\/2025\/02\/1740119257-\u56de\u6d41\u710a-300x200.jpg 300w, https:\/\/www.chuxin-smt.com\/wp-content\/uploads\/2025\/02\/1740119257-\u56de\u6d41\u710a-1024x683.jpg 1024w, https:\/\/www.chuxin-smt.com\/wp-content\/uploads\/2025\/02\/1740119257-\u56de\u6d41\u710a-768x512.jpg 768w, https:\/\/www.chuxin-smt.com\/wp-content\/uploads\/2025\/02\/1740119257-\u56de\u6d41\u710a-1536x1024.jpg 1536w, https:\/\/www.chuxin-smt.com\/wp-content\/uploads\/2025\/02\/1740119257-\u56de\u6d41\u710a-2048x1365.jpg 2048w\" alt=\"Nitrogen Reflow vs. Air Reflow: Uncovering the Soldering Secrets of High-End Electronics Manufacturing - S&amp;M Co.Ltd\" width=\"2560\" height=\"1707\" \/><\/picture>\n<p>Uvod<\/p>\n<p>Spajkanje s topljenjem je eden klju\u010dnih postopkov v proizvodnji tehnologije povr\u0161inske monta\u017ee (SMT). Njegova glavna naloga je segrevanje in taljenje komponent za povr\u0161insko vgradnjo, ki so predhodno prilepljene na tiskano vezje (PCB), s pomo\u010djo spajkalne paste, da se dose\u017ee elektri\u010dna povezava. Celoten postopek vklju\u010duje za\u010dasno pritrditev elektronskih komponent na tiskano vezje s pomo\u010djo spajkalne paste, segrevanje, da se spajka stopi, in kon\u010dno oblikovanje trajne spajkane povezave.<\/p>\n<p>Du\u0161ikova pe\u010d za prepihovanje<\/p>\n<p><strong>Varilno okolje<\/strong>: Du\u0161ik (N\u2082) se vbrizga v zaprto okolje, da se zmanj\u0161a vsebnost kisika (obi\u010dajno se nadzoruje pod 100 ppm) in ustvari okolje inertnega plina.<\/p>\n<p><strong>Kakovost varjenja:<\/strong><\/p>\n<ul>\n<li>Zmanj\u0161ajte oksidacijo, povr\u0161ina spajkane spoje pa postane svetlej\u0161a in bolj gladka.<\/li>\n<li>Izbolj\u0161ajte navla\u017eenost spajkanja in zmanj\u0161ajte napake, kot so hladni spajkani spoji in premostitve.<\/li>\n<li>Posebej primerno za spajkanje komponent z visoko gostoto in majhnim korakom (kot so BGA, QFN).<\/li>\n<\/ul>\n<p><strong>Stro\u0161ki postopka:<\/strong><\/p>\n<ul>\n<li>Potrebna je oprema za oskrbo z du\u0161ikom (na primer generator du\u0161ika ali rezervoar za teko\u010di du\u0161ik), kar pove\u010da stro\u0161ke opreme in obratovalne stro\u0161ke.<\/li>\n<li>Poraba du\u0161ika je velika, stro\u0161ki dolgoro\u010dne uporabe pa visoki.<\/li>\n<\/ul>\n<p><strong>Veljavni scenariji:<\/strong><\/p>\n<ul>\n<li>Elektronski izdelki z visokimi zahtevami glede zanesljivosti (kot so avtomobilska elektronika, letalska in vesoljska ter medicinska oprema).<\/li>\n<li>Varjenje komponent z visoko gostoto in majhnim razmikom (kot so BGA, CSP in QFN).<\/li>\n<li>Postopek spajkanja brez svinca (spajka brez svinca je bolj nagnjena k oksidaciji, du\u0161ikovo okolje pa lahko izbolj\u0161a kakovost spajkanja).<\/li>\n<\/ul>\n<p><strong>Zahtevnost opreme:<\/strong><\/p>\n<ul>\n<li>Oprema mora biti zape\u010datena in opremljena s sistemi za vbrizgavanje du\u0161ika in spremljanje koncentracije kisika.<\/li>\n<li>Delovanje in vzdr\u017eevanje sta bolj zapletena, zato je treba redno preverjati dovod du\u0161ika in koncentracijo kisika.<\/li>\n<\/ul>\n<p>Pe\u010d za pretopitev zraka<\/p>\n<p><strong>Okolje za spajkanje<\/strong>: Zra\u010dno prepihovanje: Spajkanje poteka neposredno na zraku z normalno vsebnostjo kisika (pribli\u017eno 21%).<\/p>\n<p><strong>Kakovost varjenja<\/strong>:<\/p>\n<ul>\n<li>Povr\u0161ina spajkalnega spoja je lahko oksidirana in temnej\u0161e barve.<\/li>\n<li>Spajkalna omo\u010dljivost je slaba in lahko pride do napak pri spajkanju.<\/li>\n<li>Primerno za spajkanje obi\u010dajnih komponent in tiskanih vezij z nizko gostoto.<\/li>\n<\/ul>\n<p><strong>Stro\u0161ki postopka:<\/strong><\/p>\n<ul>\n<li>Dodatna oskrba s plinom ni potrebna, stro\u0161ki opreme in obratovanja pa so nizki.<\/li>\n<li>Primerno za scenarije z omejenim prora\u010dunom ali nizkimi zahtevami glede kakovosti varjenja.<\/li>\n<\/ul>\n<p><strong>Veljavni scenariji:<\/strong><\/p>\n<ul>\n<li>Obi\u010dajni izdelki zabavne elektronike (kot so gospodinjski aparati, igra\u010de in obi\u010dajne tiskane plo\u0161\u010de).<\/li>\n<li>Varjenje sestavnih delov z majhno gostoto in velikim korakom.<\/li>\n<li>Postopek spajkanja s svincem (svin\u010deva spajka ima mo\u010dno antioksidativno sposobnost).<\/li>\n<\/ul>\n<p><strong>Zahtevnost opreme:<\/strong><\/p>\n<ul>\n<li>Struktura opreme je preprosta in ne zahteva dodatnega plinskega sistema.<\/li>\n<li>Je razmeroma enostaven za upravljanje in vzdr\u017eevanje.<\/li>\n<\/ul>\n<p><strong>Povzetek<\/strong><\/p>\n<p>Glavne razlike med du\u0161ikovim in zra\u010dnim preperevanjem so varilno okolje, kakovost, stro\u0161ki in uporabni scenariji. Du\u0161ikovo prepihovanje je primerno za varjenje komponent z visoko zanesljivostjo in visoko gostoto, vendar so stro\u0161ki vi\u0161ji; zra\u010dno prepihovanje je primerno za splo\u0161ne aplikacije in je cenej\u0161e. Katero metodo SMT izbrati, je odvisno od specifi\u010dnih zahtev izdelka in prora\u010duna.<\/p>","protected":false},"excerpt":{"rendered":"<p>&nbsp; Introduction Reflow soldering is one of the key processes in surface mount technology (SMT) production. Its main function is [&hellip;]<\/p>","protected":false},"author":1,"featured_media":2232,"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":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"categories":[52],"tags":[57,62,61,72,64],"class_list":["post-2231","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-information","tag-reflow-oven","tag-sm","tag-smt-solution","tag-solder-wave-machine","tag-soldering-process"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/posts\/2231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/comments?post=2231"}],"version-history":[{"count":0,"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/posts\/2231\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/media\/2232"}],"wp:attachment":[{"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/media?parent=2231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/categories?post=2231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/sl\/wp-json\/wp\/v2\/tags?post=2231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}