日韩中文字幕av_伊人影视_亚洲一级毛片_福利电影在线_国产精品免费观看_色视频在线观看

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(yè)生產(chǎn)焊錫膏、焊錫線、焊錫條的公司,擁有自己的科研部門,專業(yè)生產(chǎn)、銷售電子焊接使用的金屬材料、電鍍錫制品、電子化學(xué)品等。

公司通過了ISO9001:2015國際質(zhì)量體系認(rèn)證,ISO14001:2015環(huán)境管理體系認(rèn)證和SGS中多項(xiàng)ROHS以及REACH的檢測(cè);中國賽寶實(shí)驗(yàn)室可靠性研究認(rèn)定。


主站蜘蛛池模板: 欧美色影院 | 国产一区二区三区四区在线观看 | 久久久久久国产精品免费免费 | 日本超碰 | 黄色小视频入口 | 91久久精品一区 | 欧美一级黄色片 | 国产视频第一页 | 99re热精品视频国产免费 | 成人精品一区二区 | 91精品国产一区二区三区 | 日一区二区 | 一级黄a视频 | 久久成人国产精品 | 日本精品网站 | 中文字幕不卡在线观看 | 国产在线观看免费 | 国产伦精品一区二区三毛 | 免费国产一区二区 | 亚洲精品第一国产综合野 | 久久精品国产一区二区电影 | 国内精品久久久久 | 欧美综合在线观看 | 97色在线视频| 天天天天操 | 国产在线h| 91.色 | 日韩精品视频在线观看一区二区三区 | 日韩免费一区二区 | 久久伊人操 | 亚洲美女视频 | 久久久性色精品国产免费观看 | 亚洲一在线 | 日韩精品成人一区二区三区视频 | 尤物视频在线免费观看 | 日韩成人在线观看 | 正在播放国产精品 | 亚洲综合资源 | 日韩视频在线免费观看 | 美女国产精品 | 天堂网中文 |