Process for the production of hot rolled steel or heavy plates

Details Process for the production of hot rolled steel or heavy plates Process for the production of hot rolled steel or heavy plates

C - Chemistry, Metallurgy

21

D

148/34

C21D 1/02 (2006.01) C21D 8/02 (2006.01) C22F 1/10 (2006.01)

Patent

CA 1318838

21421-245 ABSTRACT Hot rolled strip or heavy plate is produced from stainless and refractory steels or from forgeable alloys on a nickel basis with a final thickness in the range of 5 to 60 mm by the production of a slab from monobloc casting or by continuous casting and heating the slab at a temperature above 1100°C, followed by the hot rolling of the slab and accelerated cooling of the product rolled to the end thickness. The heated slab is rolled without interruption first to a maximum of 1/6 of its initial thickness, mainly by deformation passes in which the degree of deformation per pass is greater than that shown by curve A in Figure 1, in dependence on the surface temperature of the product. Then finish rolling is performed to the end thickness, mainly by deformation passes in which the degree of deformation per pass is greater than that shown by curve B1 or curve B2 in Figure 1, in dependence on the surface temperature of the product and the pause between two adjacent passes as parameters. The surface temperature of the finish rolled product must be not less than 1030°C, if the product contains up -to 1.0% molybdenum or not less than 1050°C, if the product contains more than 1.0% molybdenum. At the latest 100 seconds following finish rolling, the product is cooled at an accelerated rate with a speed in the core of more than 3 K/sec, more particularly more than 5 K/sec, to a temperature which is equal to or lower than 650°C.

606790

Affiliated with

Also associated with

Rating

Process for the production of hot rolled steel or heavy plates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the production of hot rolled steel or heavy plates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of hot rolled steel or heavy plates will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1257254