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Low hardness high-performance glass mold and cast-iron flame-spray welding nickel base alloy powder

A glass mold, nickel-based alloy technology, applied in fusion spraying, metal material coating process, coating and other directions, can solve the problems of poor self-fluxing, welding layer temperature resistance, corrosion resistance and wear resistance, product defects and other problems , to achieve the effect of size out-of-tolerance repair, strong temperature resistance, and excellent processing performance

Inactive Publication Date: 2006-02-15
江门市威霖贸易有限公司
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Problems solved by technology

[0002] At present, the existing common alloy powders used for surface pre-strengthening of castings such as glass molds and cast iron have the following problems due to the unreasonable composition of their chemical components: (1) poor self-fluxing, unstable spray welding quality, resulting in product defects; (2) The hardness is too high, which is not easy to process; (3) The welding layer of the sprayed workpiece has poor temperature resistance, corrosion resistance and wear resistance
Wherein, the unreasonable composition of the chemical components in the prior art refers to: high carbon content, unreasonable ratio of boron and silicon

Method used

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Embodiment Construction

[0006] The nickel-based alloy powder of the present invention is calculated by weight %, consisting of C: 0.01% to 0.2%, P: 1.0% to 3.0%, Cr: 1.5% to 6.0%, Si: 1.0% to 3.0%, and B: 0.1% to 1.2% % and Ni: The balance is composed of alloy powder made by atomization method. Apply the powder flame spray welding process to spray and weld it to the surface of castings such as glass molds and cast iron, because Ni in it can provide a good solid solution matrix, and B compounds are distributed on the Ni-Cr solid solution, and the B compounds are mainly It is composed of B, C and Cr, which makes the welding layer of the workpiece to be sprayed and welded wear-resistant; due to the addition of B and Si, it plays the role of fluxing and slagging, thereby improving its self-fluxing property; the addition of P , and lower the melting point of the nickel-based alloy powder, while enhancing the corrosion resistance of the welding layer of the workpiece to be sprayed. By controlling the comp...

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Abstract

The invention discloses Ni-base alloy powder to pre-reinforce and repair the surface of low-hardness high-performance glass mould, which comprises: 0.01~0.2% C, 1.0~3.0% P, 1.5~6.0% Cr, 1.0~3.0% Si, 0.1~1.2% B, and Ni. Wherein, using atomization to prepare alloy; applying powder flame-spraying welding technique to spray the powder on said surface to make it have strong abrasion resistance, heatproof and corrosion resistance.

Description

1. Technical field [0001] The invention relates to a powder flame spray welding nickel base alloy powder which can be used for surface pre-strengthening and repairing of castings such as glass molds and cast iron. 2. Background technology [0002] At present, the existing common alloy powders used for surface pre-strengthening of castings such as glass molds and cast iron have the following problems due to the unreasonable composition of their chemical components: (1) poor self-fluxing, unstable spray welding quality, resulting in product defects; (2) The hardness is too high, which is not easy to process; (3) The temperature resistance, corrosion resistance and wear resistance of the welding layer of the workpiece to be sprayed and welded are poor. Wherein, the unreasonable composition of the chemical components in the prior art refers to the high carbon content and the unreasonable ratio of boron and silicon. 3. Contents of the invention [0003] The purpose of the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/08C23C4/067C23C4/129
Inventor 邝益壮曹庆黄海珍
Owner 江门市威霖贸易有限公司
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