亚洲国产成人av网站-综合色就爱涩涩涩综合婷婷-全部露出来毛走秀福利视频-丰满人妻一区二区三区视频

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: 成人黄色网址| 色妞av永久一区二区国产av| 国产精品成人无码久久久| 久久精品国产99国产精品| 18禁无遮挡啪啪无码网站| 爆乳女仆高潮在线观看| 日本边添边摸边做边爱的网站| 国产最爽的av片在线观看 | 亚洲国产精品无码专区影院 | 爆乳熟妇一区二区三区霸乳| 国产精品女人呻吟在线观看| 久久久久久久久久久久久久| 国产成人精品怡红院在线观看| 人人妻人人澡人人爽精品欧美| 无码一区二区| 免费a级毛片无码专区| 少妇被躁爽到高潮| 国产成人综合在线女婷五月99播放| 亚洲av永久无码精品古装片| 国产亚洲成av片在线观看| 久9re热视频这里只有精品| 久久综合九色综合网站| 少妇私密会所按摩到高潮呻吟| 久久久久人妻一区精品| 婷婷丁香五月激情综合| 中文字幕无码精品亚洲资源网久久| 野外做受三级视频| 久久婷婷激情综合色综合俺也去 | 欧美牲交a欧美牲交aⅴ久久| 国产麻无矿码直接观看| 四虎国产成人永久精品免费| 中文字幕一区二区三区精华液| www国产精品内射老熟女| 国产乱码精品一区二区三区四川人| 国产乱人伦app精品久久| a级国产乱理论片在线观看| 中文有码无码人妻在线| 精品久久久久久国产潘金莲| 精品久久香蕉国产线看观看亚洲| 夜夜爽一区二区三区精品| 精品国产乱码久久久久久浪潮|