激情伊人五月天久久综合_亚洲 欧美 清纯 校园 另类_久久久久av无码免费网_天堂国产一区二区三区_亚洲一区 日韩精品 中文字幕

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: 亚洲色播永久网址大全| 丰满女人又爽又紧又丰满| 性男女做视频观看网站| 国产成a人片在线观看视频 | 中文字幕日本人妻久久久免费| 亚洲午夜福利在线观看| 人禽杂交18禁网站免费| 国产成人av片无码免费| 中文字幕丰满乱子无码视频| 人妻 日韩 欧美 综合 制服| 无码人妻丰满熟妇区五十路| 在线看片免费人成视频在线影院| 又大又粗欧美黑人aaaaa片| 国产精品自产拍在线观看| 亚洲精品久久久久国色天香| 成年片色大黄全免费软件到| 每日更新在线观看av_手机 | 亚洲熟妇久久精品| 大又大粗又爽又黄少妇毛片| 亚洲成亚洲成网| 大肉大捧一进一出好爽| 精品人妻系列无码人妻免费视频| 黑人巨大精品欧美一区二区| 精品欧洲av无码一区二区三区| 夜夜春亚洲嫩草影院| 亚洲av成人网| 精品人妻少妇一区二区| 蜜桃色欲av久久无码精品软件| 日日鲁鲁鲁夜夜爽爽狠狠视频97| 黄桃av无码免费一区二区三区| 日本少妇高潮喷水xxxxxxx| 国产suv精品一区二区| 免费a级毛片出奶水| 国产人妻久久精品一区二区三区| 国精品99久9在线 | 免费| 人妻丰满熟妇av无码区hd| 精品无码一区在线观看 | 无套内射视频囯产| 成人免费777777被爆出| 亚洲av美国av产亚洲av图片| 日韩一区二区三区射精-百度|