A combined forming method for preparing high-strength ultra-thin strips

An ultra-thin strip and high-strength technology, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve the problems of high cost and reduce production cost, achieve good tensile and compressive strength, optimize processing technology, and improve production efficiency effect

Active Publication Date: 2021-06-01
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem of high cost of preparing ultra-thin strips in the prior art, and propose a combined forming method for preparing high-strength ultra-thin strips. The extremely thin strip saves the heat treatment process in the rolling process, simplifies the production process and reduces the production cost

Method used

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  • A combined forming method for preparing high-strength ultra-thin strips
  • A combined forming method for preparing high-strength ultra-thin strips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] combine figure 1 , a combined forming method for preparing high-strength ultra-thin strips in this embodiment, using asynchronous + tension + pre-compression force combined forming process, after rough rolling and finishing rolling, 304 stainless steel strips with a thickness of 5mm can be rolled A very thin strip of high-strength stainless steel with a thickness of 50 μm. The specific implementation steps are:

[0035] Step 1. Weld and fix the 304 stainless steel strip with a length of 350 mm and a thickness of 5 mm with the traction belt, and then thread the fixed stainless steel strip on a four-roll asynchronous cold rolling mill.

[0036] Step 2. Apply front and rear tension to the stainless steel strip after threading is completed. The tension value is 50% of the yield strength of the 304 stainless steel strip with equal thickness. After the front and rear tension is applied, apply a pre-compression force. 90t.

[0037] Step 3, setting the roll speed of the work...

Embodiment 2

[0047] A combined forming method for preparing high-strength ultra-thin strips in this embodiment involves rolling a 201 stainless steel strip with a thickness of 2 mm into a high-strength ultra-thin stainless steel strip with a thickness of 20 μm. The rolling process is basically the same as in Example 1, except that The difference is that the parameters of the rolling process are different, as follows:

[0048] Step 1. Weld and fix the 201 stainless steel strip with a length of 400 mm and a thickness of 2 mm to the traction belt, and then thread the fixed stainless steel strip on a four-roll asynchronous cold rolling mill.

[0049] Step 2. Apply front and rear tension to the stainless steel strip after threading is completed. The tension value is 55% of the yield strength of the 201 stainless steel strip with equal thickness. After the front and rear tension is applied, apply a pre-compression force. 70t.

[0050] Step 3, setting the roll speed of the work rolls, performing...

Embodiment 3

[0054] A combined forming method for preparing a high-strength ultra-thin strip in this embodiment is to roll a 430 stainless steel strip with a thickness of 1.4 mm into a high-strength stainless steel ultra-thin strip with a thickness of 10 μm. The rolling process is basically the same as in Example 1. The difference is that the parameters of the rolling process are different, as follows:

[0055] Step 1. Weld and fix the 430 stainless steel strip with a length of 500 mm and a thickness of 1.4 mm and the traction belt, and then thread the fixed stainless steel strip on a four-roll asynchronous cold rolling mill.

[0056] Step 2. Apply front and rear tension to the stainless steel strip after threading is completed. The tension value is 53% of the yield strength of the 430 stainless steel strip with equal thickness. After the front and rear tension is applied, apply a pre-compression force. 62t.

[0057] Step 3, setting the roll speed of the work rolls, performing multi-pass ...

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Abstract

The invention discloses a combined forming method for preparing a high-strength ultra-thin strip, which relates to the technical field of metal rolling. The present invention uses a four-roll mill to prepare a high-strength stainless steel ultra-thin strip through rough rolling and finish rolling. The specific steps are: step 1, welding the rolled piece and the traction belt, and threading the rolled piece on the four-roll mill; step 2, Apply tension and pre-compression force to the rolled piece; step 3, set the roll speed, and use the combined forming process of asynchronous + tension + pre-compression force to rough roll the rolled piece; step 4, adjust the tension and pre-compression applied to the rolled piece Force; step five, set the roll speed again and use the combined forming process to finish rolling the rolled piece. The combined forming process used in the present invention can make the rolled piece easier to thin, saves the intermediate annealing process, improves the production efficiency, and reduces the production cost. The entire rolling process only uses the cold rolling method, and the obtained ultra-thin stainless steel strip has a smooth surface , the tensile strength reaches 1.5GPa, which can replace the high-strength ultra-thin strip produced by the prior art.

Description

technical field [0001] The invention belongs to the technical field of metal rolling, and more specifically relates to a combined forming method for preparing high-strength ultra-thin strips. Background technique [0002] With the rapid development of communication information, aerospace and other industries, the market demand for various high-strength metal ultra-thin strips has risen sharply, and the types of various metal and alloy ultra-thin strips are increasing day by day, and the scope of application continues to expand. Ultra-thin strips of metals such as copper, aluminum, titanium and their alloys have high geometric precision and special physical and mechanical properties, especially ultra-thin stainless steel strips, because of their excellent strength, precision and surface finish, they have great potential in various fields. need. [0003] However, it is difficult to control the process of preparing ultra-thin metal strips with excellent product quality. The ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/36B21B1/40B21B27/02B21B37/00B21B45/02B21B29/00
CPCB21B1/36B21B1/40B21B27/021B21B29/00B21B37/00B21B45/0239B21B2267/10
Inventor 宋孟尹理波白凤梅江杰李妍妍黄贞益刘相华
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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