中文字幕精品无码一区二区|激情无码人妻又粗又大|亚洲色欲久久久综合网东京热|国产精品永久免费视频|亚洲视频在线观看

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 is reflow soldering commonly used in solder field?

作者:綠志島焊錫廠 2021-03-12 0

Reflow soldering, foreign name 回流焊, reflow soldering technology is no stranger in the field of electronic manufacturing. The components on various hardware boards used in our computer are welded to the circuit board by reflow soldering.


Reflow soldering is to weld the components to the PCB board and mount the components on the surface. The reason why it is called "reflow welding" is that the gas circulates in the welding furnace to produce high temperature, so as to achieve the purpose of welding.


There is a heating circuit inside the reflow soldering furnace, which heats the air or nitrogen to a certain temperature and then blows it to the circuit board which has been attached with components. Depending on the effect of hot air flow on the solder joint, the colloidal flux carries out physical reaction under a certain high temperature air flow to achieve SMD welding; The welding material on both sides of the component melts and connects with the motherboard.


The advantage of this welding technology is that the temperature is easy to control, the excessive oxidation can be avoided in the welding process, the variable is small, and the manufacturing cost is easier to control;


The quality of reflow soldering will be affected by many factors, the most important factor is the temperature curve of reflow soldering furnace and the composition of solder paste in the process of electronic processing.


Now the high performance reflow soldering furnace which is often used can adjust and control the temperature curve more conveniently; Therefore, in the trend of miniaturization and high density, solder paste printing has become the key factor of reflow soldering quality, template, printing and solder paste can affect the quality of solder paste printing.



綠志島金屬有限公司是一家專業生產焊錫膏、焊錫線、焊錫條的公司,擁有自己的科研部門,專業生產、銷售電子焊接使用的金屬材料、電鍍錫制品、電子化學品等。

公司通過了ISO9001:2015國際質量體系認證,ISO14001:2015環境管理體系認證和SGS中多項ROHS以及REACH的檢測;中國賽寶實驗室可靠性研究認定。


主站蜘蛛池模板: 国产成人欧美日韩在线电影| 成人禁片免费播放35分钟| 国农村精品国产自线拍| 精品国产乱码久久久久久口爆 | 国产尤物精品福利视频| 久久国产福利播放| 亚洲精品久久66国产高清| 一区二区三区无码视频免费福利| 精品少妇一区二区三区免费观 | 成人做爰69片免费看网站野花| 巨爆乳无码视频在线观看| 99热久久精里都是精品6| 国产精品成人影院在线观看| 国产肥白大熟妇bbbb| 99久久精品国产综合一区| 日本久久精品一区二区三区| 国产精品久久久久久不卡盗摄 | 久久精品人人做人人妻人人玩 | 69做爰视频在线观看| 国产农村乱人伦精品视频| 国产成人无码午夜视频在线观看 | 乱人伦人妻中文字幕无码| 久久久精品成人免费观看| 久久青青草原国产免费播放| 国产伦久视频免费观看视频| av在线 亚洲 天堂| 免费无码一区二区三区蜜桃大 | 好大好硬好爽免费视频| 日韩乱码人妻无码中文字幕视频| 国产在线精品一区二区在线看 | 亚洲日本一区二区三区在线不卡 | 一本色道无码不卡在线观看| 亚洲日本高清成人aⅴ片| 天堂av男人在线播放| 久久精品国产一区二区电影| 精品无码专区亚洲| 国产成人片无码免费视频| 中文字幕一区二区三区精华液| 一品道高清一区二区| 亚洲人成人无码网www电影首页 | 亚洲欧美日韩国产精品专区|