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Method of producing three-quarter hard state 304 narrow stainless steel band

A technology of stainless steel strip and production method, applied in the direction of rolling force/roll gap control, furnace type, furnace, etc., can solve problems such as difficulty in guaranteeing the mechanical properties of finished products, and achieve simple and easy production methods, low cost, and elimination of internal stress. Effect

Inactive Publication Date: 2010-02-17
NINGBO YONGZHENG PRECISION STAINLESS STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a production method of 3 / 4 hard 301 precision stainless steel strip to solve the defect that it is difficult to guarantee the mechanical properties of the finished product in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for producing 3 / 4 hard 304 precision stainless steel strips, using cold-rolled stainless steel strips with a thickness specification of 1.0mm as raw materials, rolling and processing to intermediate products with a thickness specification of 0.26mm, the intermediate products are subjected to performance-controlled annealing treatment, and then subjected to two The ten-roller finish rolling is finished to a specification of 0.2mm, then cleaned, stretched and straightened, cut into the width specification required by the user, and finally inspected, packaged and put into storage. The finished product finish rolling is a certain degree of cold rolling deformation processing.

[0020] The key to controlling the mechanical properties of the finished product lies in the annealing process of the intermediate product to control the performance and the deformation rate of the finished product in finishing rolling.

[0021] 3 / 4 hard 304 precision stainless steel belt inte...

Embodiment 2

[0025] A method for producing 3 / 4 hard 304 precision stainless steel strips, using cold-rolled stainless steel strips with a thickness specification of 1.0mm as raw materials, rolling and processing to intermediate products with a thickness specification of 0.26mm, the intermediate products are subjected to performance-controlled annealing treatment, and then subjected to two The ten-roller finish rolling is finished to a specification of 0.2mm, then cleaned, stretched and straightened, cut into the width specification required by the user, and finally inspected, packaged and put into storage. The finished product finish rolling is a certain degree of cold rolling deformation processing.

[0026] The key to controlling the mechanical properties of the finished product lies in the annealing process of the intermediate product to control the performance and the deformation rate of the finished product in finishing rolling.

[0027] 3 / 4 hard 304 precision stainless steel belt inte...

Embodiment 3

[0031] A method for producing 3 / 4 hard 304 precision stainless steel strips, using cold-rolled stainless steel strips with a thickness specification of 1.0mm as raw materials, rolling and processing to intermediate products with a thickness specification of 0.26mm, the intermediate products are subjected to performance-controlled annealing treatment, and then subjected to two The ten-roller finish rolling is finished to a specification of 0.2mm, then cleaned, stretched and straightened, cut into the width specification required by the user, and finally inspected, packaged and put into storage. The finished product finish rolling is a certain degree of cold rolling deformation processing.

[0032] The key to controlling the mechanical properties of the finished product lies in the annealing process of the intermediate product to control the performance and the deformation rate of the finished product in finishing rolling.

[0033] 3 / 4 hard 304 precision stainless steel belt inte...

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PUM

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Abstract

The invention relates to a production method of 3 / 4 hard 304 precision stainless steel strip including the following steps that (1) the stainless steel strip is selected as the raw material; (2) the stainless steel strip is rolled and processed; (3) anneal to the strip is carried out; (4) further rolling is conducted; (5) the stainless steel strip is precisely trimmed; (6) the product is checked and packaged and stored in a warehouse. The invention not only improves the mechanic performance of the finished product but also eliminates the internal stress of the stainless steel owing to the preliminary rolling, thus improving the performance and quality of the finished product. In addition, the production method is simple with low cost.

Description

technical field [0001] The invention belongs to the field of production methods of stainless steel strips, in particular to a production method of 304 precision stainless steel strips. Background technique [0002] Stainless steel strip products need deep processing such as stamping and cold bending during use. Different deep processing processes have different requirements for the mechanical properties of stainless steel strip products. Usually, the stainless steel strip products to be stretched and stamped are 3 / 4 hard, and the mechanical properties of 3 / 4 hard products of 304 material are Hv 320~360. [0003] In the prior art, the stainless steel is processed directly after the initial rolling process, but because the stress will be generated inside the stainless steel after the initial rolling, the effect of the finish rolling is affected, and the 304 material produced by the prior art is 3 / 4 hard The mechanical property requirement of the raw product is Hv 310-370, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/22C21D9/52C21D11/00B21B37/58B21B15/00
Inventor 杨永青
Owner NINGBO YONGZHENG PRECISION STAINLESS STEEL