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301 precision strip steel production process for cylinder gasket

A production process and cylinder head gasket technology, applied in the field of steel rolling and stainless steel rolling

Active Publication Date: 2019-02-15
SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially the 0.2 / 0.25mm precision strip steel products for cylinder head gaskets have high requirements on mechanical properties, thickness accuracy, plate shape, etc., but there is no good production process in the prior art to meet the relevant requirements

Method used

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  • 301 precision strip steel production process for cylinder gasket

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1. Material selection: 301 cold-rolled stainless steel coils with a thickness of 0.7mm and a width of 640mm are selected as raw materials, and the thickness of the finished steel strip after cold rolling is 0.2mm.

[0033] 2. Preliminary rolling: The raw material of stainless steel cold-rolled coils with a thickness of 0.7mm is rolled by SUNDWIG four-column twenty-high rolling mill. During rolling, BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. The method of multi-pass and small reduction ratio, cold rolling to 0.375mm after 3 passes, in which the surface roughness Ra of the work roll is 0.25μm, the rolling speed of the first pass is 80m / min, and the second pass is The rolling speed of the middle pass is 300m / min, and the rolling speed of the third pass, that is, the finished pass, is 200m / min.

[0034] 3. Solution treatment: The steel coil after initial rolling passes through a vertical continuous bright annealing furnac...

Embodiment 2

[0042] 1. Material selection: 301 cold-rolled stainless steel coils with a thickness of 0.7mm and a width of 640mm are selected as raw materials, and the thickness of the finished steel strip after cold rolling is 0.25mm.

[0043] 2. Preliminary rolling: The raw material of stainless steel cold-rolled coils with a thickness of 0.7mm is rolled by SUNDWIG four-column twenty-high rolling mill. During rolling, BP rolling oil is used for lubrication and cooling. The temperature of the rolling oil is 40°C. The method of multi-pass and small reduction rate, after 3 passes of cold rolling to 0.425mm, the surface roughness Ra of the work roll is 0.25μm, the rolling speed of the first pass is 80m / min, and the second pass is The rolling speed of the middle pass is 300m / min, and the rolling speed of the third pass, that is, the finished pass, is 200m / min.

[0044] 3. Solution treatment: The steel coil after initial rolling passes through a vertical continuous bright annealing furnace with...

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Abstract

The invention relates to a production process of 301 precision strip steel for a cylinder gasket. The production process comprises the steps of material selection, initial rolling, carrying out solidsolution treatment, carrying out finish rolling, drawing and flattening and the like, wherein the finally obtained cylinder gasket is prepared from the following raw materials in percentage by weight,of the 0.2 / 0.25mm precision strip steel product which the thickness precision is excellent, the flatness of the plate shape is high and the mechanical property is stability, the tensile strength Rm is larger than or equal to 1365 MPa, the yield strength Rp is larger than or equal to 1165 MPa, the elongation delta is larger than or equal to 10%, the product quality is remarkably improved, the method is suitable for industrial mass production, and the high-quality requirement of the high-end industry of the precision stainless steel pole thin strip is met.

Description

technical field [0001] The present invention generally relates to the technical field of steel rolling. More specifically, the invention relates to the field of stainless steel rolling, especially the production process of 301 precision strip steel for cylinder gaskets. Background technique [0002] With the continuous development of the national economy, the application field of cold-rolled stainless precision strip has been continuously expanded, and its requirements for product shape control accuracy, thickness tolerance, and product surface quality have been continuously improved. In particular, the 0.2 / 0.25mm precision steel strip products for cylinder head gaskets have high requirements on mechanical properties, thickness accuracy, plate shape, etc., but there is no good production process in the prior art to meet the relevant requirements. [0003] Therefore, a production process of 301 precision strip steel for cylinder gaskets is developed, so that 301 precision st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B3/02C21D1/26C21D1/30C21D6/00C21D8/02
CPCB21B1/22B21B3/02C21D1/26C21D1/30C21D6/00C21D8/0205C21D8/0221C21D8/0247
Inventor 房旭刘玉栋罗纪平刘晓东
Owner SHANXI TAIGANG STAINLESS STEEL PRECISION STRIP CO LTD