Production method of stainless steel band for electric thin shrapnel

A technology of stainless steel strip and electronic film, which is applied in the direction of furnace type, furnace, rolling mill control device, etc., can solve the problems of short service life, low hardness, low yield strength and elasticity, poor quality of electronic film shrapnel, etc., to achieve enhanced hardness, Long service life and good quality effect

Inactive Publication Date: 2009-03-18
无锡华生精密材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low hardness, yield strength and elasticity of this stainless steel strip, the electronic thin film shrapnel produced with this stainless steel strip has poor quality and short service life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare materials first. The 12Cr17Ni7 stainless steel strip blank with a thickness of 0.7mm is selected for use.

[0033] Then, rolling is performed once. Using a fourteen-high precision cold rolling mill, under a rolling force of 150KN and a rolling tension of 5KN, at a rolling speed of 80m / min, a 0.7mm thick stainless steel strip blank is rolled into a semi-finished stainless steel with a thickness of 0.3mm Belt, the thickness tolerance of the semi-finished stainless steel belt is -0.01mm.

[0034] After that, annealing is performed once. The above-mentioned semi-finished stainless steel strip is passed through a continuous hydrogen-spraying bright annealing furnace at a temperature of 1100°C at a linear speed of 11 m / min, and the semi-finished stainless steel strip in the annealing furnace is filled with protective gas. Then, the semi-finished stainless steel strip after being released from the furnace is rapidly cooled.

[0035] After that, perform a cleaning. The semi...

Embodiment 2

[0045] Prepare materials first. The 12Cr17Ni7 stainless steel strip blank with a thickness of 0.85mm is selected for use.

[0046] Then, rolling is performed once. Using a fourteen-high precision cold rolling mill, under a rolling force of 250KN and a rolling tension of 30KN, at a rolling speed of 90m / min, a 0.85mm thick stainless steel strip blank is rolled into a semi-finished stainless steel with a thickness of 0.3mm Belt, the thickness tolerance of the semi-finished stainless steel belt is -0.01mm.

[0047] After that, annealing is performed once. The semi-finished stainless steel strip is passed through a continuous hydrogen-spraying bright annealing furnace at a temperature of 1120 DEG C at a linear speed of 12 m / min, and the semi-finished stainless steel strip in the annealing furnace is filled with protective gas. Then, the semi-finished stainless steel strip after being released from the furnace is rapidly cooled.

[0048] After that, perform a cleaning. The semi-finished...

Embodiment 3

[0058] Prepare materials first. The 12Cr17Ni7 stainless steel strip blank with a thickness of 0.85mm is selected for use.

[0059] Then, one rolling is performed. Using a fourteen-high precision cold rolling mill, under a rolling force of 350KN and a rolling tension of 55KN, at a rolling speed of 100m / min, a 1.0mm thick stainless steel strip blank is rolled into a semi-finished stainless steel with a thickness of 0.3mm Belt, the thickness tolerance of the semi-finished stainless steel belt is -0.01mm.

[0060] After that, annealing is performed once. The semi-finished stainless steel strip is passed through a continuous hydrogen-spraying bright annealing furnace at a temperature of 1140°C at a linear speed of 13 m / min, and the semi-finished stainless steel strip in the annealing furnace is filled with protective gas. Then, the semi-finished stainless steel strip after being released from the furnace is rapidly cooled.

[0061] After that, perform a cleaning. The semi-finished stai...

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Abstract

The invention discloses a manufacturing method of a stainless steel band for electronic film spring plates, in particular to a manufacturing method of a stainless steel band that is used for the procession of spring plates under switch buttons of electronic products. The manufacturing method is characterized by comprising the following steps in sequence: preparing materials, a first rolling, a first annealing, a first cleaning, a second rolling, a second annealing, a second cleaning, a third rolling, a third cleaning, relief annealing, straightening and tensioning and the like. The stainless steel band manufactured with the manufacturing method has high rigidity, yield strength and elasticity, and the electronic film spring plates processed by the stainless steel band have high quality and long service life.

Description

Technical field [0001] The invention relates to a method for producing steel belts. Specifically, it is a production method of stainless steel strips used to process the shrapnel under the switch buttons of electronic products. Background technique [0002] It is known in the electronics production industry that stainless steel strips have been widely used in the shrapnel under the electronic switch buttons. At present, the production methods of stainless steel strip used to process shrapnel mainly include the steps of material preparation, primary rolling, primary annealing, secondary rolling, secondary annealing, tertiary rolling, cleaning and stretching and straightening. The stainless steel belt produced by this method can be used to process the shrapnel under the electronic switch button, but since only two annealing treatments are performed during the production process, the hardness, yield strength and elasticity of the produced stainless steel belt are low. Due to the low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P17/00B21B1/22B21B37/58B21B37/48B21B37/46B21B37/16C21D9/52C21D8/02C21D1/26C21D1/30C23G3/02B21D1/02
Inventor 芮浩清丁建刚
Owner 无锡华生精密材料股份有限公司
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