{"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\/cs\/nitrogen-reflow-vs-air-reflow-uncovering-the-soldering-secrets-of-high-end-electronics-manufacturing\/","title":{"rendered":"P\u0159etaven\u00ed dus\u00edkem vs. p\u0159etaven\u00ed vzduchem: Odhalen\u00ed tajemstv\u00ed p\u00e1jen\u00ed ve v\u00fdrob\u011b \u0161pi\u010dkov\u00e9 elektroniky"},"content":{"rendered":"<p>&nbsp;<\/p>\n<picture><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-2232 webpexpress-processed\" title=\"P\u0159etaven\u00ed dus\u00edkem vs. p\u0159etaven\u00ed vzduchem: Odhalen\u00ed tajemstv\u00ed p\u00e1jen\u00ed ve v\u00fdrob\u011b \u0161pi\u010dkov\u00e9 elektroniky - 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>\u00davod<\/p>\n<p>P\u00e1jen\u00ed p\u0159etaven\u00edm je jedn\u00edm z kl\u00ed\u010dov\u00fdch proces\u016f p\u0159i v\u00fdrob\u011b technologi\u00ed povrchov\u00e9 mont\u00e1\u017ee (SMT). Jeho hlavn\u00ed funkc\u00ed je zah\u0159\u00e1t\u00ed a roztaven\u00ed sou\u010d\u00e1stek pro povrchovou mont\u00e1\u017e p\u0159edem nalepen\u00fdch na desce plo\u0161n\u00fdch spoj\u016f (PCB) prost\u0159ednictv\u00edm p\u00e1jec\u00ed pasty, aby se dos\u00e1hlo elektrick\u00e9ho spojen\u00ed. Cel\u00fd proces zahrnuje do\u010dasn\u00e9 upevn\u011bn\u00ed elektronick\u00fdch sou\u010d\u00e1stek na desku plo\u0161n\u00fdch spoj\u016f prost\u0159ednictv\u00edm p\u00e1jec\u00ed pasty, jej\u00ed zah\u0159\u00e1t\u00ed za \u00fa\u010delem roztaven\u00ed p\u00e1jky a nakonec vytvo\u0159en\u00ed trval\u00e9ho p\u00e1jec\u00edho spojen\u00ed.<\/p>\n<p>Dus\u00edkov\u00e1 p\u0159etavovac\u00ed pec<\/p>\n<p><strong>Sva\u0159ovac\u00ed prost\u0159ed\u00ed<\/strong>: Dus\u00edk (N\u2082) se vst\u0159ikuje do uzav\u0159en\u00e9ho prost\u0159ed\u00ed, aby se sn\u00ed\u017eil obsah kysl\u00edku (obvykle se kontroluje pod 100 ppm) a vytvo\u0159ilo se prost\u0159ed\u00ed inertn\u00edho plynu.<\/p>\n<p><strong>Kvalita sva\u0159ov\u00e1n\u00ed:<\/strong><\/p>\n<ul>\n<li>Sni\u017euje oxidaci a \u010din\u00ed povrch p\u00e1jec\u00edho spoje jasn\u011bj\u0161\u00edm a hlad\u0161\u00edm.<\/li>\n<li>Zlep\u0161ete sm\u00e1\u010divost p\u00e1jky a omezte vady, jako jsou studen\u00e9 p\u00e1jec\u00ed spoje a p\u0159emost\u011bn\u00ed.<\/li>\n<li>Vhodn\u00e9 zejm\u00e9na pro p\u00e1jen\u00ed sou\u010d\u00e1stek s vysokou hustotou a jemnou rozte\u010d\u00ed (nap\u0159. BGA, QFN).<\/li>\n<\/ul>\n<p><strong>N\u00e1klady na proces:<\/strong><\/p>\n<ul>\n<li>Je zapot\u0159eb\u00ed za\u0159\u00edzen\u00ed pro dod\u00e1vku dus\u00edku (nap\u0159\u00edklad gener\u00e1tor dus\u00edku nebo n\u00e1dr\u017e na kapaln\u00fd dus\u00edk), co\u017e zvy\u0161uje n\u00e1klady na za\u0159\u00edzen\u00ed a provozn\u00ed n\u00e1klady.<\/li>\n<li>Spot\u0159eba dus\u00edku je velk\u00e1 a n\u00e1klady na dlouhodob\u00e9 pou\u017e\u00edv\u00e1n\u00ed jsou vysok\u00e9.<\/li>\n<\/ul>\n<p><strong>Pou\u017eiteln\u00e9 sc\u00e9n\u00e1\u0159e:<\/strong><\/p>\n<ul>\n<li>Elektronick\u00e9 v\u00fdrobky s vysok\u00fdmi po\u017eadavky na spolehlivost (nap\u0159. automobilov\u00e1 elektronika, leteck\u00fd pr\u016fmysl a l\u00e9ka\u0159sk\u00e9 vybaven\u00ed).<\/li>\n<li>Sva\u0159ov\u00e1n\u00ed sou\u010d\u00e1stek s vysokou hustotou a jemnou rozte\u010d\u00ed (nap\u0159\u00edklad BGA, CSP a QFN).<\/li>\n<li>Bezolovnat\u00e9 p\u00e1jen\u00ed (bezolovnat\u00e1 p\u00e1jka m\u00e1 vy\u0161\u0161\u00ed sklon k oxidaci a dus\u00edkov\u00e9 prost\u0159ed\u00ed m\u016f\u017ee zlep\u0161it kvalitu p\u00e1jen\u00ed).<\/li>\n<\/ul>\n<p><strong>Slo\u017eitost vybaven\u00ed:<\/strong><\/p>\n<ul>\n<li>Za\u0159\u00edzen\u00ed mus\u00ed b\u00fdt ut\u011bsn\u011bno a vybaveno syst\u00e9my pro vst\u0159ikov\u00e1n\u00ed dus\u00edku a monitorov\u00e1n\u00ed koncentrace kysl\u00edku.<\/li>\n<li>Provoz a \u00fadr\u017eba jsou slo\u017eit\u011bj\u0161\u00ed a je t\u0159eba pravideln\u011b kontrolovat p\u0159\u00edvod dus\u00edku a koncentraci kysl\u00edku.<\/li>\n<\/ul>\n<p>Pec na p\u0159etavov\u00e1n\u00ed vzduchem<\/p>\n<p><strong>P\u00e1jec\u00ed prost\u0159ed\u00ed<\/strong>: P\u0159etaven\u00ed vzduchem: P\u00e1jen\u00ed se prov\u00e1d\u00ed p\u0159\u00edmo na vzduchu s norm\u00e1ln\u00edm obsahem kysl\u00edku (cca 21%).<\/p>\n<p><strong>Kvalita sva\u0159ov\u00e1n\u00ed<\/strong>:<\/p>\n<ul>\n<li>Povrch p\u00e1jec\u00edho spoje m\u016f\u017ee b\u00fdt zoxidovan\u00fd a tmav\u0161\u00ed barvy.<\/li>\n<li>P\u00e1jitelnost je \u0161patn\u00e1 a hroz\u00ed vznik p\u00e1jec\u00edch vad.<\/li>\n<li>Vhodn\u00e9 pro p\u00e1jen\u00ed b\u011b\u017en\u00fdch sou\u010d\u00e1stek a desek plo\u0161n\u00fdch spoj\u016f s n\u00edzkou hustotou.<\/li>\n<\/ul>\n<p><strong>N\u00e1klady na proces:<\/strong><\/p>\n<ul>\n<li>Nen\u00ed nutn\u00e1 \u017e\u00e1dn\u00e1 dal\u0161\u00ed dod\u00e1vka plynu a n\u00e1klady na za\u0159\u00edzen\u00ed a provoz jsou n\u00edzk\u00e9.<\/li>\n<li>Vhodn\u00e9 pro sc\u00e9n\u00e1\u0159e s omezen\u00fdm rozpo\u010dtem nebo n\u00edzk\u00fdmi po\u017eadavky na kvalitu sva\u0159ov\u00e1n\u00ed.<\/li>\n<\/ul>\n<p><strong>Pou\u017eiteln\u00e9 sc\u00e9n\u00e1\u0159e:<\/strong><\/p>\n<ul>\n<li>B\u011b\u017en\u00e9 v\u00fdrobky spot\u0159ebn\u00ed elektroniky (nap\u0159. dom\u00e1c\u00ed spot\u0159ebi\u010de, hra\u010dky a b\u011b\u017en\u00e9 desky plo\u0161n\u00fdch spoj\u016f).<\/li>\n<li>Sva\u0159ov\u00e1n\u00ed sou\u010d\u00e1st\u00ed s n\u00edzkou hustotou a velkou rozte\u010d\u00ed.<\/li>\n<li>Proces p\u00e1jen\u00ed olovem (olov\u011bn\u00e1 p\u00e1jka m\u00e1 silnou antioxida\u010dn\u00ed schopnost).<\/li>\n<\/ul>\n<p><strong>Slo\u017eitost vybaven\u00ed:<\/strong><\/p>\n<ul>\n<li>Konstrukce za\u0159\u00edzen\u00ed je jednoduch\u00e1 a nevy\u017eaduje dal\u0161\u00ed plynov\u00fd syst\u00e9m.<\/li>\n<li>Jeho obsluha a \u00fadr\u017eba je pom\u011brn\u011b snadn\u00e1.<\/li>\n<\/ul>\n<p><strong>Souhrn<\/strong><\/p>\n<p>Hlavn\u00ed rozd\u00edly mezi p\u0159etaven\u00edm dus\u00edkem a p\u0159etaven\u00edm vzduchem spo\u010d\u00edvaj\u00ed ve sva\u0159ovac\u00edm prost\u0159ed\u00ed, kvalit\u011b, n\u00e1kladech a pou\u017eiteln\u00fdch sc\u00e9n\u00e1\u0159\u00edch. P\u0159etaven\u00ed dus\u00edkem je vhodn\u00e9 pro sva\u0159ov\u00e1n\u00ed vysoce spolehliv\u00fdch a hust\u00fdch sou\u010d\u00e1st\u00ed, ale n\u00e1klady jsou vy\u0161\u0161\u00ed; p\u0159etaven\u00ed vzduchem je vhodn\u00e9 pro obecn\u00e9 aplikace a m\u00e1 ni\u017e\u0161\u00ed n\u00e1klady. Kterou metodu SMT zvolit, z\u00e1vis\u00ed na konkr\u00e9tn\u00edch po\u017eadavc\u00edch na v\u00fdrobek a rozpo\u010dtu.<\/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\/cs\/wp-json\/wp\/v2\/posts\/2231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.chuxin-smt.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.chuxin-smt.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/cs\/wp-json\/wp\/v2\/comments?post=2231"}],"version-history":[{"count":0,"href":"https:\/\/www.chuxin-smt.com\/cs\/wp-json\/wp\/v2\/posts\/2231\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/cs\/wp-json\/wp\/v2\/media\/2232"}],"wp:attachment":[{"href":"https:\/\/www.chuxin-smt.com\/cs\/wp-json\/wp\/v2\/media?parent=2231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/cs\/wp-json\/wp\/v2\/categories?post=2231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.chuxin-smt.com\/cs\/wp-json\/wp\/v2\/tags?post=2231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}