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Production process of austenite stainless steel belt

A technology of austenitic stainless steel and production process, applied in manufacturing tools, furnaces, heat treatment equipment, etc., can solve the problems of poor performance and long time consumption of stainless steel strips, and achieve the effect of good surface quality, short time, and avoidance of recovery

Active Publication Date: 2013-12-25
山东能源重装集团乾元不锈钢制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a production process of austenitic stainless steel strip to solv

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A non-magnetic austenitic stainless steel with a thickness of 0.6mm and MD (30 / 50) of 40 was selected, and after conventional preprocessing such as semi-finished product rolling, solution treatment, finished product rolling, degreasing treatment, stretching and straightening treatment, the obtained Finished steel strip with a thickness of 0.2mm.

[0026] The finished steel strip passes through a stress-relief continuous annealing furnace with tension devices at the entrance and exit for low-temperature treatment to increase the strength and remanence of the steel strip. Fill the continuous annealing furnace with protective gas at a temperature of 400°C, put it into the continuous annealing furnace for stress relief under the conditions of a tension of 10KN and a speed of 5 m / min (meters per minute, mpm), to obtain a strong magnetic austenitic stainless steel strip .

[0027] The main technical indicators of the products produced by the above process can reach: the thic...

Embodiment 2

[0029] A non-magnetic austenitic stainless steel with a thickness of 1.5mm and MD (30 / 50) of 50 was selected, and after conventional preprocessing such as semi-finished product rolling, solution treatment, finished product rolling, degreasing treatment, stretching and straightening treatment, the obtained Finished steel strip with a thickness of 0.3mm.

[0030] The finished steel strip passes through a stress-relief continuous annealing furnace with tension devices at the entrance and exit for low-temperature treatment to increase the strength and remanence of the steel strip. Fill the continuous annealing furnace with protective gas at a temperature of 600°C, put it into the stress-relieving continuous annealing furnace under the conditions of a tension of 20KN and a speed of 15mpm to obtain a strong magnetic austenitic stainless steel strip.

[0031] The main technical indicators of the products produced by the above process can reach: thickness 0.3mm, width 600mm, thickness...

Embodiment 3

[0033] A non-magnetic austenitic stainless steel with a thickness of 1.0 mm and an MD (30 / 50) of 55 was selected, and after conventional preprocessing such as semi-finished product rolling, solution treatment, finished product rolling, degreasing treatment, and stretching and straightening treatment, the obtained Finished steel strip with a thickness of 0.05mm.

[0034] The finished steel strip passes through a stress-relief continuous annealing furnace with tension devices at the entrance and exit for low-temperature treatment to increase the strength and remanence of the steel strip. Fill the continuous annealing furnace with protective gas at a temperature of 500°C, put it into the stress-relieving continuous annealing furnace under the conditions of a tension of 15KN and a speed of 10mpm to obtain an austenitic stainless steel strip.

[0035] The main technical indicators of the products produced by the above process can reach: the thickness is 0.05mm, the width is 600mm, ...

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Abstract

The invention discloses a production process of an austenite stainless steel belt. The production process comprises the following steps of: pre-processing non-magnetic austenite stainless steel to obtain a finished product steel belt, wherein MD (Martensite Point) (30/50) of the austenite stainless steel is not less than 40; annealing the finished product steel belt into a stress-relieving continuous type annealing furnace which has tension devices at both an inlet and an outlet; charging a protective gas into the annealing furnace to obtain the austenite stainless steel belt, wherein the annealing conditions are that the tension is 10 KN-20 KN, the speed is 5-15 meters/minute. The production process disclosed by the invention has a simple thermal treatment process, low time consumption (only 3 minutes-5 minutes) and high production efficiency.

Description

technical field [0001] The invention relates to a production process of a stainless steel strip, in particular to a production process of an austenitic stainless steel strip with strong magnetism. Background technique [0002] Surface Mount Technology (or Surface Mount Technology) (Surface Mounted Technology, SMT) is currently the most popular technology and process in the electronics assembly industry. Most of the substrate materials used in SMT are stainless steel, with a thickness between 0.1mm and 0.5mm. Among them, the 301 steel specification must be strong magnetic, and the remanence rate must be above 8.0, and the higher the magnetic property, the better. [0003] At present, the production process of the stainless steel strip with strong magnetism is to improve the magnetism of the stainless steel strip by keeping it warm for 0.5-2 hours in an environment of 300-400°C. However, the heat treatment time of this process is long, the efficiency is low, and the remanence...

Claims

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Application Information

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IPC IPC(8): C21D8/12C21D9/56
Inventor 宿登峰孔凡伟唐杰
Owner 山东能源重装集团乾元不锈钢制造有限公司