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Cold rolling roller with high-roughness surface and manufacturing method of cold rolling roller

A manufacturing method and technology for cold rolling rolls, applied in the field of roll manufacturing, can solve problems such as low roughness, achieve the effects of fine and uniform grains, reduced grinding consumption, and uniform roll body structure

Active Publication Date: 2016-03-23
SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a cold roll with a high-roughness surface and a manufacturing method thereof, so as to solve the problem of low surface roughness of the existing cold roll and improve the rolling efficiency of the cold roll and the rolling efficiency of the product. quality, while reducing the amount of repeated grinding of cold rolls, and improving grinding efficiency

Method used

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  • Cold rolling roller with high-roughness surface and manufacturing method of cold rolling roller
  • Cold rolling roller with high-roughness surface and manufacturing method of cold rolling roller
  • Cold rolling roller with high-roughness surface and manufacturing method of cold rolling roller

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Embodiment 1

[0045] The manufacturing method of the cold rolling roll with high-roughness surface of the present embodiment comprises the following process steps:

[0046] 1) Prepare steel raw materials according to the chemical composition and weight percentage in the material of the cold roll, and prepare the roll blank according to a certain production process.

[0047] 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 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.

[0048] The test results of the weight percentage of the main chemical components in the material of the cold roll of this embodiment are shown in the column of Example 1 in Table 1, and the rest are Fe and unavoidable impurities.

[0049] 2) Carry out rough turni...

Embodiment 2

[0059] The cold rolling roll with high roughness surface of the present embodiment, the weight percentage of various chemical components in its material is tested, and the content of main components is shown in column 2 of embodiment in table 1, and the rest is Fe and cannot Avoid impurities.

[0060] The manufacturing method of the cold rolling roll with the high-roughness surface of the present embodiment, its processing step is similar to embodiment 1, and the concrete heat treatment parameter that differs from embodiment 1 is shown in column 2 of embodiment 2 in table 2, and specific grinding treatment Parameters are the same as in Example 1.

[0061] The roll surface hardness of the cold roll produced in this example is 94-96 HSD, and the roll surface roughness obtained after grinding the cold roll is Ra0.435-0.467 μm.

Embodiment 3

[0063] The cold rolling roll with high roughness surface of the present embodiment, the weight percentage of various chemical components in its material is tested, and the content of main component is shown in column 3 of embodiment in table 1, and the rest is Fe and can not Avoid impurities.

[0064] The manufacturing method of the cold rolling roll with the high-roughness surface of the present embodiment, its processing step is similar to embodiment 1, and the specific heat treatment parameter that differs from embodiment 1 is shown in column 3 of embodiment 3 in table 2, and specific grinding treatment Parameters are the same as in Example 1.

[0065] The roll surface hardness of the cold roll produced in this example is 95-96 HSD, and the roll surface roughness obtained after grinding the cold roll is Ra0.441-0.482 μm.

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Abstract

The invention relates to a cold rolling roller with a high-roughness surface. The cold rolling roller comprises, by weight percent, 0.80% to 0.90% of C, 0.20% to 0.80% of Si, 0.20% to 0.80% of Mn, 4.50% to 5.50% of Cr, 0.10% to 0.80% of Mo, not larger than 0.20% of V, not larger than 0.015% of P, not larger than 0.015% of S, the balance Fe and inevitable impurities. The cold rolling roller is provided with a roller face with the higher roughness and the good surface quality, the use effect of a user is good, the production efficiency is improved, and the work cost is reduced.

Description

technical field [0001] The invention relates to the technical field of roll manufacturing, in particular to a cold roll with a high-roughness surface and a manufacturing method thereof. Background technique [0002] With the continuous development of cold rolling technology and the improvement of product quality requirements, the performance requirements of cold rolling rolls are getting higher and higher. At present, in the field of cold-rolled special steel strips and thin-plate strips, the requirements for the surface quality of cold-rolled rolls are extremely strict, and grinding wheels with higher particle size must be used for grinding, so the roughness value of the roll body is likely to be low; however, the roll surface The roughness must reach a higher value in order to ensure the rolling requirements such as not easy to slip during rolling and increase the rolling speed, and at the same time to ensure the demand for secondary processing such as galvanizing. [000...

Claims

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Application Information

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IPC IPC(8): C22C38/22C22C38/24C21D9/38C21D1/18
Inventor 崔聪聪韩维国党坤会刘飞
Owner SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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