{"id":501,"date":"2020-11-11T09:23:37","date_gmt":"2020-11-11T01:23:37","guid":{"rendered":"https:\/\/pcb.seowaimao.com\/?p=501"},"modified":"2022-01-13T16:03:05","modified_gmt":"2022-01-13T08:03:05","slug":"how-to-identify-the-quality-of-pcb-board","status":"publish","type":"post","link":"https:\/\/uetpcb.com\/nl\/how-to-identify-the-quality-of-pcb-board\/","title":{"rendered":"How to Ldentify the Quality of PCB Board?"},"content":{"rendered":"<p style=\"font-weight: 400;\">With the rapid development of mobile phone, electronics and communication industries, the PCB circuit board industry continues to grow and grow rapidly, at the same time, people have higher requirements on layer number, weight, precision, material, color and reliability of PCB. So how do you tell if a PCB is good or bad?<\/p>\n<p style=\"font-weight: 400;\">However, due to the fierce price competition in the market, PCB material costs are also on the rise. In order to enhance the core competitiveness, more and more manufacturers monopolize the market with low prices. but these ultra-low prices are achieved by reducing the cost of materials and process, which makes PCB prone to cracks, scratches, and its precision, performance and other comprehensive factors are not up to the standard, which will seriously affect the solderability and reliability of the product, etc. In the face of various PCB boards on the market, the quality of PCB boards can be identified from two ways: the first way is to distinguish and identify from the appearance; the other is to identify from the quality specification requirements of the PCB board itself.<\/p>\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_786696062\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img decoding=\"async\" width=\"1020\" height=\"713\" src=\"https:\/\/uetpcb.com\/wp-content\/uploads\/2020\/11\/PCB-board-1030x720.png\" class=\"attachment-large size-large\" alt=\"printplaat\" srcset=\"https:\/\/uetpcb.com\/wp-content\/uploads\/2020\/11\/PCB-board-1030x720.png 1030w, https:\/\/uetpcb.com\/wp-content\/uploads\/2020\/11\/PCB-board-300x210.png 300w, https:\/\/uetpcb.com\/wp-content\/uploads\/2020\/11\/PCB-board-768x537.png 768w, https:\/\/uetpcb.com\/wp-content\/uploads\/2020\/11\/PCB-board-800x559.png 800w, https:\/\/uetpcb.com\/wp-content\/uploads\/2020\/11\/PCB-board.png 1109w\" sizes=\"(max-width: 1020px) 100vw, 1020px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_786696062 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<p>Methods to identify the quality of PCB:<\/p>\n<p>A: Distinguish the quality of the circuit board from the appearance<\/p>\n<p>Over het algemeen kan het uiterlijk van een printplaat op drie manieren worden geanalyseerd en ge\u00efdentificeerd:<\/p>\n<ol>\n<li>a) Standaardvoorschriften voor afmetingen en dikte<\/li>\n<\/ol>\n<p>De dikte van de printplaat wijkt af van die van een standaardprintplaat; klanten kunnen deze opmeten en controleren aan de hand van de dikte en specificaties van hun eigen product.<\/p>\n<ol>\n<li>b) Glans en kleur<\/li>\n<\/ol>\n<p>De buitenkant van de printplaat is bedekt met inkt; de printplaat kan als isolatie dienen. Als de kleur van de printplaat niet helder is en er weinig inkt op zit, is de isolatie van de printplaat zelf niet goed.<\/p>\n<ol>\n<li>c) uiterlijk van de las<\/li>\n<\/ol>\n<p>Omdat een printplaat uit veel onderdelen bestaat, kunnen componenten gemakkelijk losraken als er niet goed gesoldeerd is, wat de soldeerkwaliteit en het uiterlijk van de printplaat ernstig aantast; daarom is zorgvuldige identificatie van groot belang<\/p>\n<p>B:\u00a0High quality PCB circuit board should meet the following requirements:<\/p>\n<ol>\n<li>a) Nadat de componenten zijn ge\u00efnstalleerd, moet de printplaat naar behoren functioneren, dat wil zeggen dat de elektrische aansluiting aan de vereisten moet voldoen;<\/li>\n<li>b) De lijnbreedte, lijndikte en lijnafstand moeten voldoen aan de vereisten om oververhitting van de lijnen, het openbreken van het circuit en kortsluiting te voorkomen.<\/li>\n<li>c) Koper bij hoge temperaturen valt niet snel los;<\/li>\n<li>d) Het oppervlak van koper oxideert niet snel, wat de montagesnelheid be\u00efnvloedt. Na oxidatie gaat het al snel kapot.<\/li>\n<li>e) Geen extra elektromagnetische straling<\/li>\n<li>f) De vorm mag niet vervormd zijn, om te voorkomen dat de behuizing vervormt en het schroefgat na de montage verschuift. Aangezien de montage tegenwoordig volledig gemechaniseerd is, moeten de positie van de gaten op de printplaat en de afwijkingen in de lijnen en het ontwerp binnen het toegestane tolerantiebereik vallen.<\/li>\n<li>g) Er moet ook rekening worden gehouden met hoge temperaturen, hoge luchtvochtigheid en bijzondere omgevingsomstandigheden.<\/li>\n<li>h) De mechanische eigenschappen van het oppervlak moeten voldoen aan de montagevoorschriften.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>With the rapid development of mobile phone, electronics and communication industries, the PCB circuit board industry continues to grow and grow rapidly, at the same time, people have higher requirements on layer number, weight, precision, material, color and reliability of PCB. So how do you tell if a PCB is good or bad? However, due&#8230;<\/p>","protected":false},"author":6,"featured_media":502,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-501","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Identify the Quality of PCB Board - Pcb Manufacturing<\/title>\n<meta name=\"description\" content=\"With the rapid development of mobile phone, electronics, and communication industries, the PCB industry continues to grow and grow rapidly,\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uetpcb.com\/nl\/how-to-identify-the-quality-of-pcb-board\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Identify the Quality of PCB Board - 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