Production method of stainless-steel, carbon steel and stainless steel three-layer combined plate coil

A production method and stainless steel technology, applied in workpiece surface treatment equipment, metal processing equipment, metal rolling, etc., can solve problems such as uneven deformation and uneven stress distribution, achieve good surface quality, solve uneven deformation, and become talented high rate effect

Inactive Publication Date: 2015-04-22
ZHENSHI GROUP EASTERN SPECIAL STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies existing in the prior art, and provide a kind of production method of stainless st

Method used

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  • Production method of stainless-steel, carbon steel and stainless steel three-layer combined plate coil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] This embodiment produces a stainless steel-carbon steel-stainless steel three-layer composite coil with a finished product thickness of 3mm.

[0028] Select two stainless steel slabs with a thickness of 20mm and a material of SUS304, and one carbon steel slab with a thickness of 160mm and a material of Q235.

[0029] (1) Assembling slabs: clean the surfaces of stainless steel and carbon steel to be combined, dry them after cleaning, and then stack them in the order of stainless steel-carbon steel-stainless steel. After stacking, the three are welded and fixed. When welding, reserve vent holes in the rolling direction;

[0030] (2) Slab heating: Send the combined stainless steel-carbon steel-stainless steel slab to a heating furnace and heat it to 1240-1260°C for a heating time of 220 minutes; preferably, the combined stainless steel-carbon steel-stainless steel The slab is sent to the heating furnace and heated to 1250°C;

[0031] (3) High-pressure water dephosphoriza...

Embodiment 2

[0036] This embodiment produces a stainless steel-carbon steel-stainless steel three-layer composite coil with a finished product thickness of 8mm.

[0037] Select two stainless steel slabs with a thickness of 20mm and a material of SUS304, and one carbon steel slab with a thickness of 160mm and a material of Q235.

[0038] (1) Assembling slabs: clean the surfaces of stainless steel and carbon steel to be combined, dry them after cleaning, and then stack them in the order of stainless steel-carbon steel-stainless steel. After stacking, the three are welded and fixed. When welding, reserve vent holes in the rolling direction;

[0039] (2) Slab heating: Send the combined stainless steel-carbon steel-stainless steel slab to a heating furnace and heat it to 1220-1240°C for a heating time of 230 minutes; preferably, the combined stainless steel-carbon steel-stainless steel The slab is sent to the heating furnace and heated to 1230°C;

[0040] (3) High-pressure water dephosphoriza...

Embodiment 3

[0045] This embodiment produces stainless steel-carbon steel-stainless steel three-layer composite coils with a finished product thickness of 12 mm.

[0046] Select two stainless steel slabs with a thickness of 20mm and a material of SUS304, and one carbon steel slab with a thickness of 160mm and a material of Q235.

[0047] (1) Assembling slabs: clean the surfaces of stainless steel and carbon steel to be combined, dry them after cleaning, and then stack them in the order of stainless steel-carbon steel-stainless steel. After stacking, the three are welded and fixed. When welding, a vent hole should be reserved in the rolling direction;

[0048] (2) Slab heating: Send the combined stainless steel-carbon steel-stainless steel slab to a heating furnace and heat it to 1220-1240°C for a heating time of 240 minutes; preferably, the combined stainless steel-carbon steel-stainless steel The slab is sent to the heating furnace and heated to 1230°C;

[0049] (3) High-pressure water ...

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Abstract

The invention provides a production method of a stainless-steel, carbon steel and stainless steel three-layer combined plate coil, and aims at solving the problem of non-uniform stress distribution and non-uniform deformation in hot rolling processing. The method comprises the steps of assembling a plate blank; heating the plate blank; removing phosphorous with high pressure water; roughly rolling; fine rolling; cooling through streamline flow; coiling, wherein the heating is performed at the temperature of 1200 to 1260 DEG C; the rough rolling is started at the temperature of 1100 to 1200 DEG C, and the rolling is performed at three to seven times; the fine rolling is started at the temperature being not less than 950 DEG C, and the rolling is performed at five to nine times. With the adoption of the method, the plate coil being 3 to 16mm in thickness can be produced; the plate has a good form, and is high in yield.

Description

technical field [0001] The invention relates to a production method of a stainless steel-carbon steel-stainless steel three-layer composite coil. Background technique [0002] The stainless steel composite panel is a composite panel made of carbon steel base layer and stainless steel cladding material. Its main feature is that carbon steel and stainless steel form a firm metallurgical bond. The stainless steel composite plate not only has the mechanical properties required by the project, but also has corrosion resistance, which maximizes the complementary advantages of materials and saves precious metals. Compared with stainless steel of the same specification, the cost can be reduced by 30-40%. It is widely used in Petrochemical, electric power, chemical industry, machinery, kitchen utensils and other industries. However, during the rolling process of stainless steel clad coils, due to the relatively large difference in plastic elongation between carbon steel and stainles...

Claims

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Application Information

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IPC IPC(8): B21B1/38B21B45/08
CPCB21B1/38B21B45/08B21B2001/386
Inventor 颜海涛申鹏李杰史凌云杨振刘晓亚
Owner ZHENSHI GROUP EASTERN SPECIAL STEEL
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