国产午夜精品一区理论片飘花,亚洲av永久纯肉无码精品动漫,国产成年无码久久久久毛片,国产欧美一区二区精品性色

Welcome to the official website of Shenzhen Ledfocus Precision Manufacturing Co., Ltd.!
News
Industry news

Where are you now:Home >> News >> Industry news
What are the requirements for the working environment of SMT patch plug-in processing?
Time:2022-04-06 Read: 2217

SMT patch plug-in processing is easy to understand: capacitors or resistors on electronic products, add special machine paste, and after soldering, make them stronger and not easy to fall to the ground. For example, we often use products such as computers and mobile phones. Small capacitors and resistors are neatly arranged on the motherboard. These capacitors and resistors use SMT chip plug-in processing technology.


SMT is the abbreviation of Surface Mount Technology, which is a very popular processing technology in my country's electronics industry.


SMT chip plug-in processing environment requirements, humidity and temperature have certain requirements, in order to ensure the quality of electronic components, so that multi-channel processing can be completed in advance, the working environment has the following requirements:


First, the temperature requirements. The optimum temperature of the workshop throughout the year is 23±3℃, which cannot exceed the temperature of 15~35℃.


Secondly, humidity control requirements. The humidity of the SMT chip plug-in processing workshop has a great influence on the quality of the product. The higher the relative humidity of the environment, the more easily the components of the electronic system are affected by moisture, which affects the performance of the conductive materials and makes the welding not smooth. If the humidity is too low, the air in the workshop is easy to dry, and it is easy to generate static electricity. Therefore, when enterprises enter the SMT chip plug-in processing workshop, processing technicians need to wear anti-static clothing. Generally in this case, the development requires our workshop to maintain a constant humidity of about 45%~70%RH


In addition, clean requirements, no odor and dust in the workshop, and keeping the interior clean and free of corrosive materials will seriously affect the reliability of capacitors and resistors, increase the failure and maintenance rate of chip processing equipment, and reduce production progress. The cleanliness of the workshop should be 100,000 (BGJ73-84).


Finally, there are requirements for power supply stability. In order to avoid equipment failure during processing and affect the processing quality and progress, it is necessary to add a voltage stabilizer to the power supply to ensure the stability of the power supply.

3-1.jpg

Contact Us
Shenzhen Ledfocus Precision Manufacturing Co., Ltd.

Address: Room 1204, Dahong (Xinqiao) Science and Technology Innovation Park, No. 48, Xinyu Road, Shajing Street, Baoan District, Shenzhen

Phone: 0755-29727486 0755-83734215 0755-83734236

Person in charge: Mr. Fan 13088821718

Email: roman@leikashi.com

Business section #605

Email: allen@leikashi.com

Website: www.yhn567.com

Service hotline
0755-83734236
? 2020 Shenzhen Ledfocus Precision Manufacturing Co., Ltd. All rights reserved 粵ICP備2021139374號(hào)
  • Links:
国产交乣女BBWBABES中国| 握住校花两团雪乳高h| 性饥渴的老妇教我玩她 | 久久精品国产亚洲av嫖农村妇女| 欧美精品色情特级a片| 一本色道久久88—综合亚洲精品| 欧美在线 | 亚洲| 日本三级韩国三级欧美三级| 办公室双腿打开揉弄高潮女明星| 猫咪av成人永久网站在线观看| 精品国产av 无码一区二区三区| 不戴套挺进人妻怀孕| 久久无码av三级| 警花新婚尝又大又粗| 成人区色情综合小说| 强壮的公次次弄得我高潮a片日本 日韩制服国产精品一区 | 电梯里吸乳挺进我的身体视频| 抽插视频| 在教室伦流澡到高潮hgl视频| 欧美成人片一区二区三区| 精品久久人人妻人人做精品| 国产一区二三区好的精华液| 丰满岳乱妇在线观看中字无码| 亚洲欧美国产精品专区久久| 久久精品国产亚洲av无码麻豆 | 狠狠色噜噜狠狠狠888米奇视频| 亚洲成色在线综合网站| 无码专区人妻系列日韩精品| 国产色综合天天综合网| 樱花草视频www| 在线看免费观看日本av| 无码熟妇人妻AV在线影片免费| 综合欧美五月丁香五月| 熟妇人妻av无码一区二区三区| 亚洲综合一区二区三区无码| 无码人妻精品一区二区三区不卡| 亚洲av无码一区东京热| 久久久噜噜噜久久中文福利| 少妇又紧又深又湿又爽视频| 狠狠躁夜夜躁人人躁婷婷视频| 欧美激情无码视频一二三|