In the rolling process, the compression deformation of the strip steel along the width direction is uneven, which will produce problems such as waveform, buckling, C-shaped warping, etc., making the strip steel lose its straightness. Among them, the c-type warping is caused by the different extension of the upper and lower surfaces of the strip steel in the width direction. The upper surface has a larger extension, and the lower surface has a smaller extension, which is downward c-shaped warping; Otherwise, it is upward c-warping.
On January 26, the first roll of strip steel was successfully rolled off the line at the 850mm full continuous hot strip production site of Ningxia Jianlong Steel Rolling Plant, marking that the first 850mm full continuous hot strip production line in Ningxia officially entered the trial production stage, and moved forward to achieve production and efficiency.
For the tower furnace heating chamber lining generally with lightweight clay brick 230mm and adiabatic brick 70116mm masonry. That is, high temperature resistance, adiabatic effect and good. In order to ensure its stability, along the height direction should be segmented with metal beams to hold, and in each segment between the expansion interval. The lining of the conservatory is the same as that of the heating room. Slow cooling room cooling method, rely on radiation tube in the non-heating air to fast cooling, some rely only on the brick layer cooling to cooling, some set up a special cooling duct, slow cooling room lining with 12015Omm adiabatic brick.
Wang Xianfeng, a reporter from China Economic Herald, China Development Network, reported that recently, the "5G based machine vision strip surface inspection platform" project was applied in the cold rolling plant of Angang Steel, which not only realized distributed, long-term, stable, online identification and storage of strip surface defect information, but also realized subsystem data sharing. Each system can bring more than 1.8 million yuan of economic benefits to users every year.