• <noscript id="a0aaa"><pre id="a0aaa"></pre></noscript>
    <nav id="a0aaa"></nav>
    <nav id="a0aaa"></nav><nav id="a0aaa"><sup id="a0aaa"></sup></nav>
    <tr id="a0aaa"><blockquote id="a0aaa"></blockquote></tr>
    日本高清www片久久,国产午夜视频在线观看,精品少妇人妻AV无码久久,五月婷婷六月天,在线日本国产成人免费的,岛国av免费观看,久久婷婷国产综合精品,五月丁香六月
    Welcome to the official website of Legret Metal Company
    Focus on electronic welding for 20 yearsDONGGUAN LEGRET METAL.,LTD
    National consultation hotline:+86 135-2799-2739
    Contact US
    mobile phone: 135-2799-2739
    Service hotline: 0769-38893080
    Email: anson@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

    主站蜘蛛池模板: 人妻av无码系列一区二区三区| 天天操夜夜撸| 49vv亚洲欧美在线观看| 一区二区三区国产好的精华液| 久久精品久久精品中文字幕| 特级毛片A级毛片免费观看下载 | 免费国产1区2区3区4区| 完整在线视频免费黄片| 裸体一区二区三区av| 在线观看中文字幕国产| 国模大尺度啪啪| 国产在线网站| 囯产av无码片毛片一级| 久草热8精品视频在线观看| 中文字幕一区韩国三级| 久久精品国产亚洲AV香蕉吃奶| 香蕉成人短视频app免费推广 | 国产午夜视频| 子洲县| 殴美性爱| 亚洲AⅤ永久无码精品毛片| 国产精品资源在线播放| 99久久精品精品6精品精品| 天天摸天天做天天爽2020 | 香蕉在线精品视频在线观看2| 日韩精品亚洲春色欧美激情| 国产精品视频一区日韩丝袜 | 亚洲成av人片久久| 亚洲国产天堂久久综合226| 日本一区二区三区精品视频| 亚洲资源站| 男女做爽爽爽视频免费| 三级视频网| 在线观看污网站| 亚洲香蕉网久久综合影视| 91豆花成人网站| 国产一区二区三区最新视频| 亚洲国产欧美在线人成人| 麻豆午夜福利国产高潮偷啪 | 成人国产在线永久免费 | 理论片午午伦夜理片影院99|