一道精品视频一区二区三区_最近中文字幕2018免费看_精品国产品国语在线不卡_免费高清视频在线一区二区,无码AV中文一二三区_永久免费的啪啪网站免费观看_夜色55夜色66亚洲精品站_日韩欧美视频在线播放

Method for checking whether the working state of cold rolling mill is stable
2017/6/14
　　What is the inspection method for the working condition of cold rolling mill? This is a lot of customers in the process of cold rolling is very confused problems in the research, in-depth understanding of Jindi metallurgical...

Lubrication and lubrication device for steel rolling equipment
2017/6/14
　　Lubrication of steel rolling equipment: 　　(1) the rolling mill process of lubricating and cooling medium: commonly used in the rolling process, in order to reduce the friction between the roll and rolling material, reduce...

Characteristics and process requirements of two times cold rolling
2017/6/14
　　Cold rolling of cold rolled strip, instead of smooth rolling, is a method of producing thinner and higher strength tin plated (plate) strip. The two cold rolling is a kind of process with cold rolling and leveling. It has a ...

Shape control of rolled strip
2017/6/14
　　The hot rolled strip is cooled by laminar flow to room temperature, and the temperature difference between the edge and the middle part may cause bilateral waves and affect the shape of the strip. One solution is: using micr...

Technical progress and future development of domestic cold rolling mill
2017/6/14
　　Over the past 20 years, the rapid development of China's national economy has led to the rapid development of the domestic aluminum processing industry, and also promoted the domestic aluminum plate and foil rolling technolo...