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(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ROHS以及REACH的檢測;中國賽寶實驗室可靠性研究認(rèn)定。


主站蜘蛛池模板: 欧美群妇大交群| 国产成人综合在线观看不卡| 在教室伦流澡到高潮h麻豆| 久久最新地址获取| 欧美性受xxxx狂喷水| 沈阳熟女露脸对白视频| 久久亚洲精品无码gv| 国产精品免费久久久久影院| 四虎影视成人永久免费观看视频| 亚洲av天天做在线观看| 国产精品亚洲欧美大片在线观看| 国产看黄网站又黄又爽又色| 久久tv中文字幕首页| 亚洲精品国产a久久久久久| 精品国偷自产在线视频99| 粉嫩小泬无遮挡久久久久久| 亚洲一码二码三码精华液| 激情航班h版在线观看| 年轻漂亮的人妻被公侵犯bd免费版| 精品国产一区av天美传媒| 亚洲中文字幕无码专区| 亚洲精品国产成人片| 国产农村一国产农村无码毛片| 三年片大全电影| 鲁一鲁一鲁一鲁一澡| 中文字幕乱偷无码av先锋| 国产精品成人无码视频| 国产99久久久久久免费看| 精品久久久久久中文字幕大豆网| 国产精品久久久久久久免费看| 少妇内射视频播放舔大片| 97视频精品全国免费观看 | 亚洲最大成人网站| 五月天中文字幕mv在线| 成人av鲁丝片一区二区免费| 国产sm重味一区二区三区| 成人免费无遮挡无码黄漫视频| 精品国产一区二区三区2021| 亚洲中文字幕成人无码| 久久久久久亚洲综合影院| 日本高清另类videohd|