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A kind of high temperature resistant, anti-oxidation, wear-resistant metallurgical roller and its preparation method

A technology of anti-oxidation and high temperature resistance, which is applied in the fields of wear-resistant metallurgical rollers and their preparation, anti-oxidation and high temperature resistance, and can solve problems such as easy falling off

Active Publication Date: 2020-05-22
马鞍山市恒泰重工机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increasing the thickness of the coating can improve the primary life cycle, but the thickened coating is easy to fall off under the combined effects of large thermal expansion of the substrate, high temperature impact load, high temperature oxidation, etc.

Method used

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  • A kind of high temperature resistant, anti-oxidation, wear-resistant metallurgical roller and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0023] A metallurgical roller with high temperature resistance, oxidation resistance and wear resistance, including a substrate and a composite coating, the substrate is carbon structural steel, and the mass percentages of each element in the carbon structural steel are C 0.11%, Al 0.08%, Mn 0.32%, S 0.008%, P 0.012%, Si0.15%, N 0.003%, Als 0.052%, Fe 98.72%, the raw material of the composite coating is alloy powder, and the composite coating is coating one, coating two, coating Layer 3, the raw material of coating 1 is nickel self-fluxing alloy powder, the coating 2 is a mixture of SiC and Co fine carbide special alloy powder, and the raw material of coating 3 is a mixture of BN and CrN alloy powder.

[0024] The preparation method of the above-mentioned high-temperature-resistant, oxidation-resistant and wear-resistant metallurgical roller comprises the following steps:

[0025] 1) Preparation of the matrix: Take the above-mentioned raw materials in proportion to prepare ste...

Embodiment 2

[0029] A metallurgical roller with high temperature resistance, oxidation resistance and wear resistance, including a substrate and a composite coating, the substrate is carbon structural steel, and the mass percentages of each element in the carbon structural steel are C 0.11%, Al0.035%, Mn 0.39%, S 0.01%, P 0.019%, Si0.06%, N 0.001%, Als0.011%, Fe 99.18%, the raw material of composite coating is alloy powder, and the composite coating is coating 1 and coating 2 from inside to outside 3. Coating 3. The raw material of coating 1 is nickel self-fluxing alloy powder, the raw material of coating 2 is a mixture of SiC, ZrC, and Co fine carbide special alloy powder, and the raw material of coating 3 is micron-sized BN, CrN, TiC alloy powder mixture.

[0030] The preparation method of the above-mentioned high-temperature-resistant, oxidation-resistant and wear-resistant metallurgical roller comprises the following steps:

[0031] 1) Preparation of the matrix: Take the above-mention...

Embodiment 3

[0035]A metallurgical roller with high temperature resistance, oxidation resistance and wear resistance, including a substrate and a composite coating, the substrate is carbon structural steel, and the mass percentages of each element in the carbon structural steel are C 0.15%, Al 0.08%, Mn 0.63%, S 0.016%, P 0.027%, Si0.15%, N 0.002%, Als 0.023%, Fe 98.69%, the raw material of the composite coating is alloy powder, and the composite coating is coating one, coating two, coating Layer 3, the raw material of coating 1 is a mixture of iron self-fluxing alloy powder, aluminum self-fluxing alloy powder, and nickel self-fluxing alloy powder, the raw material of coating 2 is a mixture of ZrC and Co fine carbide special alloy powder, and the raw material of coating 3 is A mixture of micron-sized BN and CrN alloy powders.

[0036] The preparation method of the above-mentioned high-temperature-resistant, oxidation-resistant and wear-resistant metallurgical roller comprises the following...

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Abstract

The invention provides a metallurgical roll resistant to the high temperature, oxidation and abrasion and a preparation method thereof and relates to the technical field of metallurgical roll preparation. The metallurgical roll comprises a base body and a compound coating. The base body is made of carbon structural steel. The carbon structural steel comprises, by mass percentage, 0.11-0.15% of C,0.035-0.08% of Al, 0.32-0.63% of Mn, 0.008-0.016% of S, 0.012-0.027% of P, 0.06-0.15% of Si, 0.001-0.003% of N, 0.011-0.052% of Als and 98.69-99.18% of Fe; and the compound coating is made of alloy powder. According to the metallurgical roll resistant to the high temperature, oxidation and abrasion and the preparation method thereof, the compound coating is sprayed to the surface of the base bodyof the metallurgical roll through a plasma laser spray technology; the high temperature resistance, the oxidation resistance and the abrasion resistance of the metallurgical roll are further improved;and the service life of the metallurgical roll is prolonged.

Description

technical field [0001] The invention relates to the technical field of metallurgical roll preparation, in particular to a high-temperature-resistant, oxidation-resistant, wear-resistant metallurgical roll and a preparation method thereof. Background technique [0002] At present, the metallurgical rolls commonly used in the metallurgical industry are casting rolls and forging rolls obtained from alloy tool steel through "steelmaking + casting + heat treatment" and "steelmaking + ingot + forging + heat treatment". The biggest problem with this kind of traditional metallurgical roller is that after the surface wears or falls off, it can only be repaired by one repair welding. The bonding strength between the repair welding metal and the substrate is greatly reduced, so the life cycle is relatively short. Under the premise of continuous production, the life cycle of each roll (that is, before repair) is only 3-6 days, and the life cycle after repair is not more than 10 days. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C23C4/134C23C4/10C23C4/06C23C4/08C23C4/18
CPCC22C38/001C22C38/002C22C38/02C22C38/04C22C38/06C23C4/06C23C4/08C23C4/10C23C4/134C23C4/18
Inventor 张彩红赵龙申
Owner 马鞍山市恒泰重工机械有限公司