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Method for rolling ultra-thin metal strap

A technology of metal poles and thin strips, applied in the direction of metal rolling, etc., can solve the problems of high cost, low efficiency, difficulty in rolling liquid, powder and granular metal raw materials, etc., to reduce rolling preparation time and shorten rolling Period, the effect of improving the transmission stiffness

Inactive Publication Date: 2013-03-27
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The existing four-high rolling mills are mostly used for synchronous rolling of large work rolls, which cannot roll thin strips or extremely thin strips; the roll system is vertically distributed, and it is difficult to roll liquid, powder and granular metal raw materials; the existing asynchronous rolling mills The replacement of different speed ratios depends on the replacement of transmission gears, which is costly and inefficient
The current production equipment and methods of thin strips and ultra-thin strips in the state of metals, alloys and powdery particles cannot meet the needs. Against this background, the present invention is proposed

Method used

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  • Method for rolling ultra-thin metal strap
  • Method for rolling ultra-thin metal strap
  • Method for rolling ultra-thin metal strap

Examples

Experimental program
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Effect test

Embodiment 1

[0034] The aluminum strip with a thickness of 1mm is rolled into an extremely thin strip with a thickness of 4μm, and the operation steps are as follows:

[0035] (1) Start the power supply of the rolling mill system and turn on the main motor fan;

[0036] (2) Shake the handle clockwise to lift the roll gap;

[0037] (3) Wrap the aluminum strip on one side of the reel, and wind the lead-out end on the other reel after passing through the side tension roller, the work roll gap and the two outer side tension rollers, and wind it 3 times;

[0038] (4) Turn on the tension motor to build tension. By adjusting the voltage value of the autotransformer, the front and rear tensions are respectively set to 40MPa, and the yield strength of aluminum is 90MPa;

[0039] (5) Shake the pressing handle counterclockwise to press down the roll gap, the raw material is thicker, and the positive roll gap is selected to be 0.7mm at first;

[0040] (6) Set the speed ratio of the upper and lower ...

Embodiment 2

[0047] The silicon steel strip with a thickness of 0.35mm is rolled into an extremely thin strip with a thickness of 30μm. The operation steps are:

[0048] (1) Start the power supply of the rolling mill system and turn on the main motor fan;

[0049] (2) Shake the handle clockwise to lift the roll gap;

[0050] (3) Wrap the aluminum strip on one side of the reel, and wind the lead-out end on the other reel after passing through the side tension roller, the work roll gap and the two outer side tension rollers, and wind it 2 times;

[0051] (4) Turn on the tension motor to build tension. By adjusting the voltage value of the autotransformer, the tension value is 120MPa, and the yield strength is 280MPa;

[0052] (5) Shake the pressing handle counterclockwise to press down the roll gap, the raw material is thicker, and the positive roll gap is selected to be 0.2mm at first;

[0053] (6) Set the speed ratio of the upper and lower rolls on the man-machine interface, and the spe...

Embodiment 3

[0060] The Q195 steel strip with a thickness of 0.5mm is rolled into an extremely thin strip with a thickness of 25μm. The operation steps are:

[0061] (1) Start the power supply of the rolling mill system and turn on the main motor fan;

[0062] (2) Shake the handle clockwise to lift the roll gap;

[0063] (3) Wrap the aluminum strip on one side of the reel, and wind the lead-out end on the other reel after passing through the side tension roller, the work roll gap and the two outer side tension rollers, and wind it 2 times;

[0064] (4) Turn on the tension motor to build tension. By adjusting the voltage value of the autotransformer, the tension value is 90MPa, and the yield strength is 195MPa;

[0065] (5) Shake the pressing handle counterclockwise to press down the roll gap, the raw material is thicker, and the positive roll gap is selected to be 0.4mm at first;

[0066] (6) Set the speed ratio of the upper and lower rolls on the man-machine interface, and the speed rati...

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Abstract

The invention belongs to the technical field of rolling and particularly relates to a method for rolling an ultra-thin metal strap. The method comprises the steps of starting a system power supply of a multifunctional rolling machine, and starting a main motor fan; rocking a pressing handle clockwise to lift a roller gap; twining a raw strap material round a roller on one side, wherein the outgoing end is twined round the other roller for 2-3 circles after passing through a tension roller on the side, the working roller gap and two tension rollers on the outer side; starting a tension motor, building up the tension force, giving a tension value of a rolled piece through adjustment of the voltage value of an auto-transformer; rocking the pressing handle counterclockwise to close the roller gap; setting the speed ratio of the upper roller and the lower roller on a human-computer interface; starting a main transmission motor to start positive roller gap rolling, zero roller gap rolling and negative roller gap rolling processes; and repeating rolling till the outlet thickness of the rolled piece meets requirements. According to the method, a plurality of procedures of positive roller gap and negative roller gap rolling are adopted, in coordination with high-tension asynchronous rolling, the rolled piece with the thickness of the submicron level can be thinned continuously.

Description

[0001] technical field [0002] The invention belongs to the technical field of rolling, in particular to a rolling method of extremely thin metal strips. Background technique [0003] With the development of micro-manufacturing technology and micro-forming technology, the demand for thin strips and ultra-thin strips of metals, alloys and powder materials is becoming more and more urgent. Such materials are widely used in: [0004] (1) Microelectronics industry, used in the manufacture of large-scale integrated circuits, etc.; [0005] (2) Micro-manufacturing industry, micro-materials for micro-robots and micro-devices; [0006] (3) In the instrumentation industry, it is used as a special functional material for instruments; [0007] (4) In the motor industry, it is used as a magnetic material for micro motors. [0008] The existing four-high rolling mill is mostly used for synchronous rolling of large work rolls, which cannot roll thin strips or extremely thin st...

Claims

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Application Information

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IPC IPC(8): B21B1/24
Inventor 刘相华汤德林
Owner NORTHEASTERN UNIV
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