欧美另类人妖-欧美乱xxxxxxxxx-欧美乱大交xxxxx潮喷-欧美乱大交xxxxx疯狂俱乐部-欧美乱妇15p-欧美乱妇高清无乱码

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: 久久成人国产精品免费| 亚洲欧美日韩在线观看二区| 天堂在线中文字幕| 2021av网站| 全国男人的天堂网站| 天堂资源在线最新版| av大片| 日本五级床片在线观看| 天天摸夜夜爽| 一级做a爰| 国产日本久久久久久久久婷婷| 男女视频在线观看| 亭亭色| 国内精品久久久久影院薰衣草| 色婷婷免费视频| 亚洲韩国在线一卡二卡 | 清冷双性被cao的合不拢腿| 亚洲第一精品夜夜躁人人爽| 久久综合婷婷| 午夜视频久久久久一区| 久久九九亚洲精品| 三级视频在线| 99久久久久久久| 日噜噜| 一a一级片| 久久久伊香蕉网站| 午夜激情网站| 亚洲网站一区| 黄色大片视频网站| 日韩精品另类天天更新影院| 在线免费观看日本| 欧美亚洲国产精品久久| 天天逼逼| 九九热精品在线观看| 午夜私人影院粉色视频我要| 久久伊人影视| 亚洲精品15p| 青草资源视频在线高清观看| 一区二区午夜| 日韩色视| 中文字幕一区二区三区在线播放 |