High corrosion resistant antiwear iron base heat spray coating layer material and its preparation method

A coating material and thermal spraying technology, applied in the coating, metal material coating process, fusion spraying, etc., can solve the problems of complicated and single process, unable to give full play to the advantages of amorphous and nanocrystalline properties, and achieve the goal of preparing Simple process, easy on-site construction, and easy on-site operation

Inactive Publication Date: 2007-04-18
ADVANCED TECHNOLOGY & MATERIALS CO LTD
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Problems solved by technology

[0007] In short, at present, in the thermal spraying technology, plasma spraying and high-speed flame spraying technology are mainly used to prepare amorphous nanocrystalline composite coatings. Most of the materials used are pre-prepa

Method used

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  • High corrosion resistant antiwear iron base heat spray coating layer material and its preparation method
  • High corrosion resistant antiwear iron base heat spray coating layer material and its preparation method
  • High corrosion resistant antiwear iron base heat spray coating layer material and its preparation method

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Embodiment Construction

[0045] The weight percentages of selected components are shown in Table 1. The above components were prepared into metal wires, wherein the coating was FeC16 steel strip, and the core was BFe powder, MoFe powder, W powder, Cr powder, VFe powder, Al powder, Sn Ga powder and Ga powder are homogeneously mixed, and the particle size of the powder is 60 mesh-100 mesh, and the total composition of the obtained metal wire material satisfies the composition shown in Table 1 above.

[0046] The U-shaped metal strip is coated with metal powder to form a metal wire with a required diameter by using a core wire forming line and a wire drawing line.

[0047] In order to improve the bonding ability of the substrate and the coating, and make full use of the rapid cooling of the substrate, the substrate needs to be pretreated before spraying to remove oil and oxides on the surface of the substrate and increase the roughness. The methods used include the usual pretreatment methods Such as clea...

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Abstract

The invention relates to coating materials of iron base alloy with high corrosion and wear resistance, and preparation method. 1) Hot spraying materials are wires processed by using metallic tapes covering metal-powder. 2) Hot spraying materials have high ability of forming amorphous, whose components are as follows: 13-20% Cr, 0.2-5% Mn, 0.2-5% B, 0.05-1% C, 0.1-0.5% Si, 0.02-0.5% of S and P. At least one of the following alloy elements is selected: (1) One or more of Al, Ga and Sn is contained. (2) One or more of Mo, W and V is contained. Total of the two group of alloy element is more than 0.5%. The rest is Fe. 3) Coats getting directly by hot spraying are composite materials of amorphous and nanocrystalline, which have both wear resistance and corrosion resistance. Based on simple preparation and low cost, coats are applicable for field construction.

Description

technical field [0001] The invention belongs to the field of thermal spraying, and relates to a highly corrosion-resistant and wear-resistant iron-based alloy coating material and a preparation method thereof. Background technique [0002] Amorphous and nanocrystalline alloys have unique and excellent properties. The long-range disorder of amorphous alloys causes it to exhibit excellent mechanical and chemical properties, such as high strength, high hardness and corrosion resistance. Nanocrystalline alloys have higher strength and hardness due to the grain size reaching the nanoscale, and at the same time Has good toughness. However, due to the difficulty in controlling the preparation process, the product forms of amorphous and nanocrystalline alloys have been mainly thin strips, filaments, powders, etc. for a long time, and the thickness or diameter is only tens of microns. It is difficult to obtain a large size and thickness, which limits the their application in engine...

Claims

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Application Information

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IPC IPC(8): C23C4/06C22C45/02C23C24/08
Inventor 卢志超倪晓俊郭金花吴嘉伟陆曹卫薄希辉李德仁孙克周少雄
Owner ADVANCED TECHNOLOGY & MATERIALS CO LTD
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