亚洲а∨天堂2014在线无码-精品无码国产自产拍在线观看蜜-久碰久摸久看视频在线观看-国产精品igao视频网-人人爽天天碰狠狠添

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: 色爱av综合网站| 亚洲 自拍 欧美 小说 综合| 无码国产欧美一区二区三区不卡 | 大陆熟妇丰满多毛xxxⅹ| 厨房玩丰满人妻hd完整版视频| 牲欲强的熟妇农村老妇女视频| 亚洲色资源在线播放| 国产偷人爽久久久久久老妇app| 无码色av一二区在线播放| 国产黄网免费视频在线观看| 亚洲一区二区三区四区五区六区 | 国产午夜伦鲁鲁| 国产女人高潮叫床视频| 日韩a片无码毛片免费看| 亚洲高清无码在线观看| 国产精品久久久久久亚洲影视| 亚洲18禁| 日本无码v视频一区二区| 国产成人亚洲综合色就色| 亚洲国产精品va在线观看麻豆| 又大又紧又粉嫩18p少妇| 日本成本人片免费网站| 丰满岳乱妇久久久| 日韩好片一区二区在线看| 亚洲精品中文字幕久久久久| 欧美人与动牲交欧美精品| 7777精品伊久久久大香线蕉| 无码手机线免费观看| 日韩精品无码免费毛片| 久久精品国产99精品国产亚洲性色| 各种少妇正面bbw撒尿| 放荡的少妇2欧美版| 又湿又黄裸乳漫画无遮挡网站| 久久久国产一区二区三区| 乱人伦中文视频在线| 人人妻人人做从爽精品| 欧美高清大屁股xxxxx| 精品麻豆丝袜高跟鞋av| 一本到在线观看视频| 国产剧情无码播放在线观看| 亚洲一区二区三区四区五区黄|