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What are the characteristics of the ISP process for packaging steel strips?
by：Hongmei
2021-03-15
What are the characteristics of the ISP process for packaging steel strips?
Answer: ISP process features are as follows:
The shape of the ISP continuous casting mold is basically rectangular. In order to extend the casting time, increase the thickness of the nozzle, and maintain the distance between the nozzle and the long side of the mold, there is also a 15mm bulging curve on the long side, and the billet outlet is high. Out of 0.5mm. The exit thickness of the mold billet is 75mm, the vibration of the mold is controlled by a hydraulic cylinder, and the vibration frequency can be adjusted during the casting process. After the cast slab is drawn out of the mold, it is subjected to liquid core casting and rolling, from 75mm to 50mm, then descaling, and then enters two barren rolling mills to press to 15-25mm. The pressure of the barren rolling mill is very small, and the power of each is only 500kW.
The quality of the steel plate after the blank rolling of the continuous casting billet is similar to that of the general medium plate. If necessary, it can be cut to length by a shearing machine and sold as a medium plate. After the blank rolling, the blank is heated by an induction heating furnace, and then coiled into a steel coil by a hot coiler, and then the steel coil is sent to the rolling mill operation line by the transverse movement equipment of the coil, and the coil is opened by the uncoiler and sent to the rolling mill for rolling. The whole process from the hot coiler to the uncoiler is in the state of heat preservation and heating.
There are 4 tandem rolling mills, leaving the position of the fifth stand. Because the billet of ISP is much thinner than that of CSP, the rolling process of ISP is easier, the biting speed can be higher, and the exit speed
is not higher than 13m/s, it will not produce the 'floating' phenomenon of high-speed rolling, and the thickness of the steel plate can be rolled to 1mm, which is impossible in the CSP process. ISP's continuous rolling mill can be equipped with Japan's Mitsubishi PC rolling mill, and it also has advanced technology such as shape control.
Answer: ISP process features are as follows:
The shape of the ISP continuous casting mold is basically rectangular. In order to extend the casting time, increase the thickness of the nozzle, and maintain the distance between the nozzle and the long side of the mold, there is also a 15mm bulging curve on the long side, and the billet outlet is high. Out of 0.5mm. The exit thickness of the mold billet is 75mm, the vibration of the mold is controlled by a hydraulic cylinder, and the vibration frequency can be adjusted during the casting process. After the cast slab is drawn out of the mold, it is subjected to liquid core casting and rolling, from 75mm to 50mm, then descaling, and then enters two barren rolling mills to press to 15-25mm. The pressure of the barren rolling mill is very small, and the power of each is only 500kW.
The quality of the steel plate after the blank rolling of the continuous casting billet is similar to that of the general medium plate. If necessary, it can be cut to length by a shearing machine and sold as a medium plate. After the blank rolling, the blank is heated by an induction heating furnace, and then coiled into a steel coil by a hot coiler, and then the steel coil is sent to the rolling mill operation line by the transverse movement equipment of the coil, and the coil is opened by the uncoiler and sent to the rolling mill for rolling. The whole process from the hot coiler to the uncoiler is in the state of heat preservation and heating.
There are 4 tandem rolling mills, leaving the position of the fifth stand. Because the billet of ISP is much thinner than that of CSP, the rolling process of ISP is easier, the biting speed can be higher, and the exit speed
is not higher than 13m/s, it will not produce the 'floating' phenomenon of high-speed rolling, and the thickness of the steel plate can be rolled to 1mm, which is impossible in the CSP process. ISP's continuous rolling mill can be equipped with Japan's Mitsubishi PC rolling mill, and it also has advanced technology such as shape control.
