视频 欧美 国产_日韩欧美自拍另类_亚洲少妇无套内射激情视频_男女黄色网站免费观看_一区二区成人av_日本黄色录像一级片_国内精品三级电影_少妇三级高清自拍_免费国产黄在线播放_丰满少妇人妻HD高清大乳

Controlled Rolling, Controlled Cooling Technology-2

2022-03-24

Development of Controlled Rolling and Controlled Cooling Technology in China my country is rich in niobium, vanadium, titanium and rare earth resources, and has broad prospects for the development of microalloy controlled rol...

Application and technology of tension leveling and rewinding unit

2022-03-24

　　Brief description of production process 　　The incoming material coil of the unit is hoisted by the crane in the workshop to the incoming material storage platform at the front of the unit, and the storage platform i...

PLC control optimization strategy of cold rolling recoil inspection unit

2022-03-24

The cold-rolled re-coil inspection unit is an intermediate process of the cold-rolled production line. Its main function is to cut the large coil into smaller outer diameter coils and inspect the surface quality of the coils. I...

Answers to questions arising in the production of six-high reversing mills

2022-03-24

1. How to control the rolling force? The rolling force is large, the shape of the plate is difficult to control, the temperature of the roll is uneven, and the bearing capacity of the roll is reduced. Newly replaced work roll...

Coil Control Analysis of Hot Rolled Strip

2022-03-24

　　Abstract: The coil shape of hot-rolled strip is an important factor affecting the quality of strip. Aiming at the coil shape problem in the hot-rolled strip coiling process, this paper analyzes and studies various coil sh...

Pickling unit disc shear adjustment process

2022-03-23

一、Features of disc cutter A certain shearing process is used to cut the edge of the strip to eliminate the edge defects of the hot-rolled steel strip, obtain high-quality products, and provide good raw materials for the subse...