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Cold-rolled aluminum work roll with good grinding properties and manufacturing method thereof

A manufacturing method and technology of work rolls, applied in the field of roll manufacturing, can solve the problems of labor intensity, production efficiency, grinding cost, production organization, failure to meet surface quality requirements, low roughness value, etc., to solve the problem of low grinding efficiency, The effect of promoting the amount of carbide dissolution and reducing the consumption of grinding amount

Active Publication Date: 2018-05-18
邢台轧辊小冷辊有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It often meets the surface quality requirements of the roll surface, but the roughness value is low. After the machine is used, the rolling cycle will not meet the rolling cycle, or the product will not meet the surface quality requirements; when the grinding parameters are adjusted to meet the required roughness , there will be defects such as spiral lines, dark lines, scratches, etc. on the roller surface, and it cannot be used on the machine
According to incomplete statistics, this situation occurs in most cold-rolled aluminum plants, and accounts for a certain proportion. It has already affected labor intensity, production efficiency, grinding costs, and production organization.

Method used

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  • Cold-rolled aluminum work roll with good grinding properties and manufacturing method thereof
  • Cold-rolled aluminum work roll with good grinding properties and manufacturing method thereof
  • Cold-rolled aluminum work roll with good grinding properties and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The manufacturing method of the cold-rolled aluminum work roll with good grindability of the present embodiment comprises the following process steps:

[0045] 1) According to the chemical composition and weight percentage of the work roll material, the steel material is prepared, and the roll blank is obtained according to a certain production process.

[0046] Specifically, the steel raw materials are smelted in an electric arc furnace and a refining furnace, and molded into electrode ingots. The chemical composition and weight percentage of the final electrode ingot are tested. After passing the test, it is forged into a forging billet. The forging billet is subjected to post-forging heat treatment, and finally turned to obtain a roll billet.

[0047] The test results of the main chemical components in the material of the cold-rolled aluminum work roll of this embodiment are shown in the column of Example 1 in Table 1, and the rest are Fe and unavoidable impurities. ...

Embodiment 2

[0058] The cold-rolled aluminum work roll with good grindability of the present embodiment, the weight percentage of the main chemical components in its material is tested, and the content of the main chemical components is shown in column 2 of Example 1 in Table 1, and the rest For Fe and unavoidable impurities.

[0059] The manufacturing method of the cold-rolled aluminum work roll with good grindability of the present embodiment, its process step is similar to that of embodiment 1, and the specific heat treatment parameters different from embodiment 1 are shown in column 2 of embodiment 2 in table 2, specifically Grinding treatment parameters are the same as in Example 1.

[0060] The roll surface hardness of the cold-rolled aluminum work roll prepared in this embodiment is 96-98 HSD, and the roll surface roughness obtained after grinding the cold-rolled roll is Ra0.581-0.615 μm.

Embodiment 3

[0062] The cold-rolled aluminum work roll with good grindability of the present embodiment, the weight percentage of the main chemical components in its material is tested, and the content of the main chemical components is shown in column 3 of Example 1 in Table 1, and the rest For Fe and unavoidable impurities.

[0063] The manufacturing method of the cold-rolled aluminum work roll with good grindability of the present embodiment, its processing steps are similar to that of embodiment 1, and the specific heat treatment parameters different from embodiment 1 are shown in column 3 of embodiment in table 2, specifically Grinding treatment parameters are the same as in Example 1.

[0064] The roll surface hardness of the cold-rolled aluminum work roll prepared in this embodiment is 97-99HSD, and the roll surface roughness obtained after grinding the cold-rolled roll is Ra0.599-0.633 μm.

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Abstract

The invention relates to a cold-rolled aluminum working roll with good grinding performance. The working roll comprises chemical components which include, by weight percent, 0.85-0.95% of C, 0.25-0.45% of Si, 0.25-0.35% of Mn, 2.50-3.50% of Cr, 0.20-0.40% of Mo, smaller than or equal to 0.25% of Ni, smaller than or equal to 0.025% of P, smaller than or equal to 0.025% of S and the balance Fe and inevitable impurities. According to the cold-rolled aluminum working roll with the good grinding performance, the cold-rolled aluminum working roll with the good grinding performance is obtained, the requirements for surface hardness and roll face roughness of the working roll are met at the same time, and it is verified that effects are good after a user uses the cold-rolled aluminum working roll.

Description

technical field [0001] The invention relates to the technical field of roll manufacturing, in particular to a cold-rolled aluminum work roll with good grinding performance and a manufacturing method thereof. Background technique [0002] At present, the aluminum and aluminum alloy sheet and strip products of advanced cold-rolled aluminum rolling mills are directly used in the manufacture of products in certain fields as finished or semi-finished products. At the same time, people have higher and higher requirements for the appearance quality of cold-rolled aluminum and aluminum alloy products. . The 9Cr3Mo material cold-rolled aluminum work roll manufactured by the traditional process sometimes needs repeated grinding to achieve the required surface quality and roughness value of the roll surface under the specified grinding process. It often meets the surface quality requirements of the roll surface, but the roughness value is low. After the machine is used, the rolling cy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/18C22C38/12C22C38/08C22C38/04C22C38/02C21D9/38B21B27/00
CPCB21B27/00C21D9/38C21D2261/00C22C38/02C22C38/04C22C38/08C22C38/12C22C38/18
Inventor 韩维国苗金平朱庆华梁俊良
Owner 邢台轧辊小冷辊有限责任公司
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