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:
亚洲一线产区和二线产区区别 | 日韩国产精品亚洲а∨天堂免| 免费无码成人AV在线播放不卡| 免费看韩国黄a片在线观看| √最新版天堂资源网在线| 亚洲熟女www一区二区三区| 成人性生交a片免费看网站| 性色欲情网站IWWW九文堂| 久久久久久久人妻无码中文字幕爆| 狂野欧美性猛交免费视频| 人妻丰满熟妞AV无码区| 国产亚洲av片在线观看18女人| 娇妻被邻居灌满精h| 国产毛a片啊久久久久久保和丸 | 小秘书夹得真紧好爽h调视频| 一本加勒比hezyo无码资源网| 久久午夜无码免费| xx性欧美肥妇精品久久久久久| 国产片+人+综合| 亚洲gv猛男gv无码男同| 又湿又紧又大又爽a视频国产 | 农民人伦一区二区三区| 俄罗斯zoom人与zoom| 糖心VLOG精品一区二区| 再深点灬舒服灬太大了少妇| 亚洲色欲色欲在线大片| 麻豆蜜桃69无码专区在线| 精品国产乱码久久久久久口爆| 国语自产偷拍精品视频偷| 精品人妻少妇一区二区三区在线| 亚洲av无码专区国产乱码dvd| 邻居人妻与教练HD三级| 色多多性虎精品无码av| 国产色情精品一区二区| 校花夹震蛋上课自慰爽死| 日韩视频在线观看| 波多野结衣456| 国产精品无码久久综合网| www.五月天| 亚洲中文字幕无码爆乳av| 九九热这里只有精品视频|