| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: method includes rolling with specified temperatures and cobbing values. Improvement of steel mechanical properties, particularly weldability of received from it in the sequel cold-rolled strips, is provided ensured by rolling of pipe manganese steel, containing 0.19Ç0.22 wt % carbon and 0.02Ç0.05 wt % aluminium, for finite thickness 3.0 mm rolling temperature in sixth mill stand is accepted equal to 1020Ç1100C, finishing temperature - 820Ç860C and strips winding temperature - 540Ç580C, herewith value of total percent reduction in roughing stand is accepted =87Ç89% with increasing of percent reduction i in each following stand, and in finishing train =89Ç91% with reduction 6; slong the rolling strike, beginning from the third finishing train, 1.06Ç1.41 times in each following passage. ^ EFFECT: increasing of consumer properties of sheet pipe wide strip steel during hot rolling. ^ 1 ex |
