The main points of the rolling process ASTM A36 steel plate

The main points of the rolling process ASTM A36 steel plate are as follows

1.To establish a reasonable heating system and strictly control the soaking temperature, heating temperature and heating time of ASTM A36 steel plate. Attention should be paid to the control of the atmoSPHEre in the furnace to reduce the formation of oxidized iron sheets on the surface of the slab of ASTM A36 steel plate , and to put an end to the phenomenon of watermarks on the surface of the slab of ASTM A36 steel plate.

2.To establish an appropriate reduction system and adopt cross-rolling. Controlled rolling mode of ASTM A36 steel plate, strict control of rough rolling, finish rolling and other rolling process of ASTM A36 steel plate , and the thickness of the medium to be rolled, the time, etc. Temperature, cooling mode. The reduction rate of the last 3 passes must be more than 4%.

3.according to the finished product thickness of different ASTM A36 steel sheet, different final rolling temperature must be determined and strictly controlled.

4.The ASTM A36 steel plate is finished rolling. After completion, water curtain cooling must be carried out behind the machine, cooling speed is controlled to ensure that the cooling is even into the hot straightener. If the shear temperature of ASTM A36 steel plate is controlled below 20 ℃, the blue edge will not appear.