Different-temperature rolling method for preparing stainless steel and carbon steel composite board

Abstract

The invention provides a different-temperature rolling method for preparing a stainless steel and carbon steel composite board. The different-temperature rolling method comprises the following steps: S1, blank preparation; S2, composite blank pre-heating; S3, composite blank induction-heating; S4, different-temperature rolling. An electromagnetic induction heating method is introduced into a hot-rolling composite process for preparing the stainless steel and carbon steel composite board to perform secondary heating on a stainless steel layer of an integrally-heated composite blank; the deformation resistance difference between the stainless steel layer and a carbon steel layer is reduced through controlling the temperature difference between the stainless steel layer and the carbon steel layer of the composite blank, so that the deformation of the stainless steel layer and the carbon steel layer in the rolling deformation process is more coordinated, therefore, the warping after a single-sided stainless steel composite blank is rolled can be reduced, even eliminated, and the internal residual stress after a double-sided stainless steel composite blank is rolled can be reduced.

Description

technical field [0001] The invention relates to a manufacturing process method of a metal composite plate, in particular to a different temperature rolling method for preparing a stainless steel and carbon steel composite plate. Background technique [0002] Stainless steel and carbon steel composite panels are single-sided stainless steel and carbon steel composite panels or double-sided stainless steel and carbon steel composite panels that combine carbon steel base and stainless steel cladding. Stainless steel and carbon steel clad plate not only has the corrosion resistance of stainless steel, but also has the good mechanical strength and processing performance of carbon steel. It is a new type of industrial product. [0003] The industrial production methods of stainless steel and carbon steel clad plates mainly include explosive clad method and hot rolling clad method. [0004] The explosive cladding method is to place the stainless steel plate on the carbon steel sub...

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Problems solved by technology

Its advantages are: it is easy to realize multi-layer material composite, the composite interface is corrugated, and the bonding strength is high; its disadvantages are: serious environmental pollution, small product size range, not suitable for mass production

[0007] The advantages of the existing hot-rolling composite method for producing stainless steel and carbon steel clad plates are: simple equipment, large product size range, high production efficiency, and suitable for mass production; its disadvantages are: due to the same temperature, the deformation resistance of stainless steel is greater than that of carbon steel. The deformation resistance of steel, in the rolling deformation process, the deformation of stainless steel and carbon steel is not coordinated, resulting in the single-sided stainless steel and carbon steel composite billet will easily warp after rolling, and the double-sided stainless steel and carbon steel composite billet will be There is a large residual stress inside after rolling

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