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Stainless steel plate and production method thereof

A plate production, stainless steel technology, applied in the direction of manufacturing tools, elongation control, metal rolling, etc., can solve the problems of low surface quality, obvious plate grain, limit the application range of 430 stainless steel, etc., to achieve high surface quality and good mechanical properties , the effect of hardness and strength improvement

Active Publication Date: 2021-04-16
JIANGMEN RIYING STAINLESS STEEL MATERIALS MANUFACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]However, the traditional production method of 430 series cold-rolled strip steel cannot guarantee the mechanical properties of stainless steel (such as hardness, etc.), and the produced cold-rolled strip steel There are common problems such as obvious plate grain and low surface quality, which greatly limit the application range of 430 stainless steel

Method used

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  • Stainless steel plate and production method thereof
  • Stainless steel plate and production method thereof
  • Stainless steel plate and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (1) sending the stainless steel slab with a thickness of 2.8mm into a 20-high rolling mill for one-time rolling to obtain the first semi-finished stainless steel plate with a thickness of 1.4mm (the total reduction rate at this time is 50%);

[0060] (2) Send the semi-finished product of the first stainless steel plate with a thickness of 1.4mm into a horizontal controlled atmosphere bright annealing furnace for an annealing treatment to obtain the semi-finished stainless steel plate. The time is 129s;

[0061] (3) the second stainless steel plate semi-finished product with a thickness of 1.4mm is sent to the twenty-high rolling mill for secondary rolling to obtain the third stainless steel semi-finished product with a thickness of 0.195mm (total reduction rate at this time is 86.1%) );

[0062] (4) Send the third stainless steel plate semi-finished product with a thickness of 0.195mm into a horizontal controlled atmosphere protection muffle bright annealing furnace fo...

Embodiment 2

[0064] (1) sending the stainless steel slab with a thickness of 2.8mm into a 20-high rolling mill for one-time rolling to obtain the first semi-finished stainless steel plate with a thickness of 1.45mm (the total reduction rate at this time is 48.2%);

[0065] (2) Send the semi-finished product of the first stainless steel plate with a thickness of 1.45mm into a horizontal controlled atmosphere bright annealing furnace for an annealing treatment to obtain the semi-finished stainless steel plate. The time is 125s;

[0066] (3) the second stainless steel plate semi-finished product with a thickness of 1.45mm is sent to the twenty-high mill for secondary rolling to obtain the third stainless steel semi-finished product with a thickness of 0.198mm (total reduction rate at this time is 86.3%) );

[0067] (4) Send the third stainless steel plate semi-finished product with a thickness of 0.198mm into a horizontal controlled atmosphere protection muffle bright annealing furnace for s...

Embodiment 3

[0069] (1) sending the stainless steel slab with a thickness of 2.8mm into a 20-high rolling mill for one-time rolling to obtain the first semi-finished stainless steel plate with a thickness of 1.4mm (the total reduction rate at this time is 50%);

[0070] (2) Send the semi-finished product of the first stainless steel plate with a thickness of 1.4mm into a horizontal controlled atmosphere bright annealing furnace for an annealing treatment to obtain the semi-finished stainless steel plate. The time is 129s;

[0071] (3) the second stainless steel plate semi-finished product with a thickness of 1.4mm is sent to the twenty-high rolling mill for secondary rolling to obtain the third stainless steel semi-finished product with a thickness of 0.192mm (total reduction rate at this time is 86.3%) );

[0072] (4) Send the third stainless steel plate semi-finished product with a thickness of 0.192mm into a horizontal controlled atmosphere protection muffle bright annealing furnace fo...

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Abstract

The invention discloses a stainless steel plate and a production method thereof. The production method of the stainless steel plate comprises the following steps: a prepared stainless steel plate blank is fed into a first rolling mill prepared in advance for primary rolling, and a first stainless steel plate semi-finished product is obtained, wherein the total reduction rate of primary rolling ranges from 40% to 60%; the first stainless steel plate semi-finished product is fed into a prepared first annealing furnace for primary annealing treatment, and a second stainless steel plate semi-finished product is obtained; the second stainless steel plate semi-finished product is fed into a pre-prepared second rolling mill for secondary rolling, and a third stainless steel plate semi-finished product is obtained, wherein the total reduction rate of secondary rolling ranges from 80% to 90%; and the third stainless steel plate semi-finished product is fed into a pre-prepared second annealing furnace for secondary annealing treatment, and a stainless steel plate finished product is obtained. According to the production method of the stainless steel plate, plate textures of the cold-rolled strip steel can be eliminated, and the mechanical performance and the surface quality of the cold-rolled strip steel are improved.

Description

technical field [0001] The invention belongs to the technical field of stainless steel processing, and in particular relates to a stainless steel plate and a production method thereof. Background technique [0002] At present, chromium-ferritic stainless steel cold-rolled strip steel in the 430 series is widely used in electronic communications, auto parts, decoration and other industries, and has very high added value; with the continuous development of the technical level of various industries, the mechanical Performance, surface quality, etc. also put forward higher requirements. [0003] The production method of the traditional 430 series cold-rolled strip is: after the hot-rolled coil is reversibly rolled by a rolling mill or continuously rolled by a continuous rolling mill, it is then passed through a continuous annealing and pickling line, and finally passed through a tempering machine to obtain a quality that meets the needs of downstream users. Cold rolled strip st...

Claims

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Application Information

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IPC IPC(8): B21B37/56B21B1/22B21B15/00C21D8/02C21D1/26
Inventor 李耀如
Owner JIANGMEN RIYING STAINLESS STEEL MATERIALS MANUFACTORY