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Mill roll system for flattening irregular metal part and flattening rolling method

A technology for special-shaped parts and metals, applied in the direction of metal rolling, metal rolling, rolls, etc., can solve problems such as inability to flatten and roll, marks on the surface of the plate, and inability to guarantee the initial thickness of the plate, so as to maintain the original thickness. The surface quality is good and the effect of avoiding self-damage

Active Publication Date: 2016-01-27
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the variability of the shape of metal special-shaped parts, impressions appear on the surface of the plate after being flattened by ordinary flat rolls, and the initial thickness of the plate cannot be guaranteed. Or line-surface contact, it cannot be reasonably flattened and rolled according to the shape of special-shaped parts

Method used

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  • Mill roll system for flattening irregular metal part and flattening rolling method
  • Mill roll system for flattening irregular metal part and flattening rolling method
  • Mill roll system for flattening irregular metal part and flattening rolling method

Examples

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Effect test

Embodiment 1

[0022] A rolling mill roll system for flattening metal shaped parts. The upper and lower work rolls are composed of 2~4 curved parts and 2~5 straight parts, and the two ends along the length direction of the roll body are straight parts, and the straight lines The length of the part is 30~52.36mm, the angle between the tangent line and the horizontal line at the two ends of each curved part is 0~75°, and the curved part and the curved part or the curved part and the straight part are connected smoothly; the roll system The length of the roll body is 120mm, the minimum roll diameter is φ86.6~117.2mm, and the maximum roll diameter is φ118mm.

[0023] The method for flattening and rolling metal special-shaped parts by using the roll system is carried out according to the following process steps:

[0024] (1) Prepare industrial pure aluminum special-shaped parts with a thickness of 1.6~2mm and a width of 80mm. The cross-sectional diagram is as follows figure 1 As shown, the roll ...

Embodiment 2

[0027] A rolling mill roll system for flattening metal shaped parts. The upper and lower work rolls are composed of 6 sections of curved parts and 2 sections of straight lines, and the two ends along the length direction of the roll body are straight parts, and the lengths of the straight parts at both ends are respectively 39.7mm and 30.75mm, the angle between the tangent line and the horizontal line at the two ends of each curve part is 0~30°, and the curve part and the curve part are connected smoothly; the length of the roll body of the roll system is 120mm, and the minimum roll The diameter is φ109.58mm, and the maximum roll diameter is φ118mm.

[0028] The method for flattening and rolling metal special-shaped parts by using the roll system is carried out according to the following process steps:

[0029](1) Prepare industrial pure copper special-shaped parts of equal thickness with a thickness of 2mm and a width of 90mm. The cross-sectional diagram is as follows image...

Embodiment 3

[0032] A rolling mill roll system for flattening metal shaped parts. The upper and lower work rolls are composed of 6~9 sections of curves and 4~7 sections of straight lines. The length of the part is 35~81.01mm, the angle between the tangent line and the horizontal line at the two ends of each curved part is 0~75°, and the curved part and the curved part or the curved part and the straight part are connected smoothly; the roller system The length of the roll body is 260mm, the minimum roll diameter is φ159.5~179.2mm, and the maximum roll diameter is φ180mm.

[0033] The method for flattening and rolling metal special-shaped parts by using the roll system is carried out according to the following process steps:

[0034] (1) Prepare special-shaped pieces of ordinary carbon steel (Q235) with a thickness of 1.6~2mm and a width of 170mm. The cross-sectional diagram is as follows Figure 5 As shown, the roll bending process is adopted, and the upper and lower working rolls of the ...

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Abstract

The invention provides a mill roll system for flattening an irregular metal part and a flattening rolling method. The roll system is characterized in that an upper working roll and a lower working roll each comprises at least one curved line part and two straight line parts, wherein two ends in the length direction of each roll body are the straight line parts, and the straight line parts of the two ends are 1 to 5mm in length; included angles between tangent lines at a front end point and a rear end point of each curved line part and the horizontal line range from 0 to 75 degrees; the curved line parts are in smooth connection with each other, or the curved line parts are in smooth connection with the straight line parts. The flattening method comprises the following steps: (1) performing the roll bending rolling process for the irregular metal part, and flattening at one to ten times; (2) flattening in a finishing pass manner. With the adoption of the roll system and the flattening rolling method, the irregular metal parts with equal thickness or different thicknesses and being 0.2 to 10mm in thickness can be efficiently flattened; in addition, the damage, caused by the structural diversity, of the irregular part can be effectively avoided; a flattened board is high in surface quality, and the board can remain the original thickness.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a rolling mill roll system and a flattening and rolling method for flattening metal special-shaped parts. Background technique [0002] Sheet metal has always occupied an important position in the application of my country's industrial field. With the rapid development of modern industry, due to environmental pressure and economic pressure, the production of lightweight components has become more and more common. As a kind of lightweight components, irregular-shaped plates of equal or unequal thickness are widely used in the fields of construction and national defense, and have obvious advantages in weight reduction effect, mechanical properties, adaptability, and optimized thickness distribution. , has a good application prospect. However, due to the variability of the shape of metal special-shaped parts, impressions appear on the surface of the plate after ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B27/02B21D3/02
CPCB21B27/02B21B2203/18B21D3/02
Inventor 刘相华王小巩支颖
Owner NORTHEASTERN UNIV
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