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

Research on safe operation evaluation technology of blast furnace hearth

2022-06-30

　　Abstract: Aiming at the problem that the current safe operation evaluation technology for blast furnace can not analyze the corrosion data of hearth lining, resulting in poor reliability of evaluation results, a new safe oper...

Analysis of blast furnace blast

2022-06-30

　　agglomeration process 　　■ if the personnel fail to comply with the safety operation regulations, gas maintenance safety regulations, and do not wear labor protection articles, gas poisoning, gas explosion, scalding, elect...

Analysis and control measures of coil shape of spinning machine

2022-06-30

　　Abstract: the reeling machine is the key equipment for high-speed wire rod production. Starting with the reeling principle of the reeling machine, this paper analyzes the main factors affecting the coil shape in the reeling p...

Lvzhiyong and fushoubin of Shangang group were investigated

2022-06-28

　　 　　Lvzhiyong, deputy general manager and general counsel of Laiwu branch of Shandong Iron and Steel Co., Ltd., and deputy general manager of Yinshan Section Steel Co., Ltd. of Laiwu Iron and Steel Group, was subject to di...

MCC CCID equipment won the bid for the standby project of Baowu Kunming section steel short stress line universal mill

2022-06-28

　　Good news of winning the bid 　　On June 16, CCID equipment received a formal notice from the European metallurgical platform and successfully won the bid for the supply of spare machines for the short stress line universal...

Comprehensive characteristic analysis of blast furnace fuel injection

2022-06-28

　　After decades of development, the technology of pulverized coal injection into blast furnace has become a common technical means used by major iron and steel enterprises at home and abroad. Coal injection into blast furnace p...