免费国产视频_亚洲国产女人精品久久久_国产欧美日产A片_91porn国产_欧美精品久久久久久久久久丰满_日日日夜夜操_91熟妇视频_精品探花对白视频在线观看,97久人人做人人妻人人玩精品 ,91露脸熟女对白不带套,正在播放日韩一区二区

Online Service
Scan it
Support hotline
18681482740
Service Hotline:
18681482740
中文  |   English
News
Contact

Contact: Mr. Li 18681482740

Email: lilinhan1314@126.com

Website: m.dg-hzh.com

News
Preventive measures during the production of metal stamping parts
09-01 / 2020

Metal stamping parts are products we often use. It is processed by cutting, bending, stamping, and shaping the metal material in the cavity through the pressure of the mold and the punching machine. What precautions should be taken when producing metal stamping parts?




1. Regularly check the die mounting seat of the punch turntable and stamping parts to ensure the coaxial accuracy of the upper and lower turntables.




2. Metal stamping parts need to be strictly inspected before installation and application. The dirt should be cleaned off. The stamping parts guide sleeve and die-casting mold should be carefully checked for good lubrication.




3. In order to ensure the longevity of the tensile and compression parts, the spring of the mold should also be replaced regularly to prevent the fatigue damage of the spring from affecting the use of the tensile stamping parts.




4. When installing the mold, the stamping personnel should use soft metal manufacturing tools to prevent the stamping parts from being damaged by impact and extrusion during the installation process.




5. The wear of the convex and concave die edge of the stamping parts should be stopped in time and polished in time, otherwise it will rapidly expand the wear of the die edge, accelerate the wear of the die, and reduce the stamping quality and die life.

Links:Zibo CNC machine tool automatic car washing machine Qingdao refrigeration equipment grinder equipment steel grit fire inspection cabinet sweeper motor desulfurization denitrification equipment drawing mold washing machine automatic soldering machine server repair HART475 hand operator dust-free cloth dust-free paper stack screw type Sludge dehydration machine, precision repair welding machine, Shandong motor repair, rotary hot pot equipment, integrated ultrasonic cleaning machine, Zhongjie radial drilling machine, beer equipment, Shenzhen brass manufacturer, welcome lamp, lens digging, drilling rig, aluminum housing manufacturer, automatic dispensing machine, automatic screwing machine neodymium Iron boron magnet 4g router wireless bridge
We provide you with high quality products
午夜精品久久国产免费| 国产性夜夜夜春夜夜爽| 好想被狂躁无码视频在线字幕| 天天操夜夜操免费视频| av免费在线播放一区二区| 亚洲专区国产乱伦| 日韩a级毛片一区二区三区亚洲| 国产91新婚之夜第一次| 91视频一区二区| 黄色片一级久久| 亚欧妇妇炮炮| 96视频一区二区| 天天干天天做天天操| 九色丨蝌蚪丨少妇调教| 亚洲综合色AAA成人无码| 美国一级av| 91精品无码少妇a久久欧美| 亚洲中文字幕婷婷在线| 韩国精品人妻视频一区| 性做爰片免费视频毛片中文ILO| 99久久精品免费夜视频| 999精品视频| 色婷婷国产精品综合在线观看| 亚洲一级性爱视频| 中文字幕成人乱码熟女| 欧美三日本三级少妇三级在线播| 欧美性久久久久| 性感美女国产激情午夜激情av| 亚洲国产精品久久人人爱| 国产高清AVwuma| 国产一区二区欧美亚洲| 婷婷九月丁香| 91高清黄色片| 日本a在线天堂| 人妻一区二区欧洲| 91人妻中文字幕无码专区| 婷婷五月天AV自拍| 可以免费看的av网站| 98超碰在线观看一区二区| 91日本在线观看亚洲精品| 日日骚一区|