Rolling method of stainless steel composite plate

Abstract

The embodiment of the invention provides a rolling method of a stainless steel composite plate. The rolling method of the stainless steel composite plate comprises the following process steps in sequence: detecting high-temperature mechanical properties of carbon steel and stainless steel, correcting and inputting chemical components, selecting a control model, heating a plate blank, rough rolling, descaling after being discharged from a furnace, finish rolling, finish descaling, finish rolling outlet, layer cooling control and coiling control. The stainless steel composite plate blank consists of four layers of steel plates from top to bottom, and the first layer and the fourth layer are both carbon steel plates with the thickness of 75-80 mm, the second layer and the third layer are bothSUS304 stainless steel plates with the thickness of 12-14 mm, and after rolling, the thickness of a finished product is generally 6-16mm; and through the technical means provided by the invention, continuous and mass production is smoothly realized on a traditional hot continuous rolling unit, and the stainless steel composite plate with good shape and surface quality of a steel strip is prepared.

Description

technical field [0001] The invention relates to the technical field of steel production, in particular to a rolling method of a stainless steel clad plate. Background technique [0002] Stainless steel clad plate is composed of base materials such as ordinary carbon steel or other special materials and stainless steel cladding materials through various production processes. Its material and thickness can be freely combined. It is widely used in petroleum, chemical, salt industry, water conservancy and electric power In other industries, as a resource-saving product, stainless steel composite panels can reduce the consumption of precious metals, greatly reduce engineering costs, achieve the perfect combination of low cost and high performance, and have good economic benefits. The production process of stainless steel composite panels is generally There are explosive compounding process, hot rolling compounding process, and cold rolling compounding process. The characteristics...

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Problems solved by technology

[0003] The Chinese patent document with the publication number CN 103521518B introduces a rolling method of a stainless steel clad plate of SUS304+Q235B and SUS304+ST12 on a hot continuous rolling mill. The design of the rolling process does not consider the characteristics of the high temperature mechanical properties of 304 stainless steel. The rolling load is optimized, and the carbon steel in the clad plate is mainly carbon structural steel with general strength, which does not involve the rolling of SUS304+Q355B low-alloy steel stainless steel clad plate, and different rolling processes should be adopted for carbon steel with different components

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