国产精品蜜臀,麻豆一卡2卡三卡4卡免费观看,日本女人毛茸茸毛茸茸一区二区三区 ,精品污污污一区二区

Welcome to the official website of Legret Metal Company
Focus on electronic welding for 20 yearsDONGGUAN LEGRET METAL.,LTD
National consultation hotline:135-2799-2739
Contact US
mobile phone: 135-2799-2739
Service hotline: 0769-38893080
Email: lzd@dglzd.com
Address: Dongguan lvzhidao Metal Co., Ltd
Contact person: Manager Zeng
Industry information

What are the factors that affect the thickness of the laser steel mesh of the red paste used in the placement process?

作者:Lvzhidao solder factory 2021-04-24 0

What are the usual considerations for the thickness of laser wire mesh with red glue solder paste?


The thickness of the paste wire mesh is considered by the precision of the welding layer of electronic components. High precision electronic components are made of thin steel sheet, and large welding layer components are made of thick steel sheet. The thickness of solder paste mesh is usually between 0.08-0.18mm, and that of red glue mesh is between 0.15-0.3mm. Which components are high precision?


Generally, 0201 components can use 0.08mm thin steel plate, 0402 components can use 0.1mm thin steel plate, 0603 components can use 0.12mm thin steel plate... It is based on the size of resistance and capacitance components to judge, then a PCB board is not only such, but also IC, BGA and other components, in this case, it must be based on the minimum IC interval to judge the thickness of wire mesh, Otherwise, too thin will be less tin, too thick will be more tin. The thickness of steel wire mesh is one of the most important factors affecting the quality of steel wire mesh.

er=http___i03.c.aliimg.jpg

在线v| 午夜无码一区二区三区在线观看| 亚洲日韩精品无码AV海量| 凹凸国产熟女精品视频APP| 免费A级毛片无码A∨中文字幕下载| 都兰县| 97综合| 四虎最新| 一本色综合亚洲精品蜜桃冫| 邻居少妇张开腿让我爽视频| 大香蕉| 欧美黑人又粗大| 蜜臀av免费一区二区三区水牛| 好吊视频一区二区三区| 大狠狠大臿蕉香蕉大视频| 亚洲日韩一区精品射精| 秋霞鲁丝片av无码少妇| 亚洲人成网站在线观看69影院 | 91久久精品一区二区三区大全| 国产成人综合色在线观看网站| 亚洲免费综合色在线视频| 97人妻无码专区| 免费无码国产V片在线观看| 蜜桃AV无码免费看永久| www亚洲天堂| 熟女乱论| 97人人妻| 日韩欧美| 久久精品国产欧美亚洲人人爽| 一区二区三区久久| 人妻少妇中文字幕| 皋兰县| 丰满熟妇人妻中文字幕| 熟女一区二区三区| 高雄县| 日本一卡2卡3卡4卡无卡免费| 色婷婷六月亚洲婷婷6月| 爱人若爱其身| 4438ⅹ亚洲全国最大色丁香| 成人免费视屏| 国产精品三级a三级三级午夜|