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Single-layer high-temperature diamond grinding wheel brazing process

A diamond grinding wheel, high-temperature technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of insufficient bonding strength and affecting the service life of products, and achieve long service life, easy operation and good wettability.

Inactive Publication Date: 2015-09-09
HENGYANG FENGSHUN AXLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the production and processing of diamond grinding wheels is made by directly brazing diamond abrasive grains on the metal substrate, and the bonding strength between the abrasive grains and the substrate is insufficient, which affects the service life of the product

Method used

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Examples

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Embodiment Construction

[0006] First use gas welding to spray a 1.5mm thick Ni-Cr alloy layer on the steel substrate, in which the Ni content in the Ni-Cr alloy is 72%, the Cr content is 14.4%, and the solid phase and liquid phase temperatures of the Ni-Cr alloy are 1020°C respectively. , 1050°C, and then induction braze the workpiece that has been sprayed with Ni-Cr alloy layer in argon at 1080°C until the Cr in the Ni-Cr alloy is separated and enriched on the surface of the workpiece to form a corresponding carbonization with a thickness of 1mm thing.

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Abstract

A single-layer high-temperature diamond grinding wheel brazing process is characterized in that Ni-Cr alloy layer with 1mm-1.5mm thickness is sprayed on a metal base body through gas welding firstly, then induction brazing is conducted on a workpiece sprayed with the Ni-Cr alloy layer in the argon at 1080 DEG C temperature till Cr in Ni-Cr alloy is separated and corresponding carbide of with 0.8mm-1mm thickness is gathered and generated on the surface of the workpiece. The alloy layer and the metal base body have good wettability, accordingly higher bonding strength can be obtained, operation is simple and convenient, a product is stable and reliable in quality, and the service life is long.

Description

technical field [0001] The invention relates to a metal welding method, in particular to a single-layer high-temperature brazing diamond grinding wheel process. Background technique [0002] In the prior art, the production and processing of diamond grinding wheels is made by directly brazing diamond abrasive grains on the metal substrate, and the bonding strength between the abrasive grains and the substrate is insufficient, which affects the service life of the product. Contents of the invention [0003] The object of the present invention is to provide a single-layer high-temperature brazing diamond grinding wheel process with simple operation, stable and reliable product quality and long service life. [0004] In order to realize the purpose of the above invention, the specific welding method used in the present invention is: first use gas welding to spray a 1mm-1.5mm thick Ni-Cr alloy layer on the metal substrate, wherein the Ni content in the Ni-Cr alloy is 70%-72%, ...

Claims

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Application Information

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IPC IPC(8): B23K1/002B23K1/20B24D18/00B23K101/20
CPCB23K1/002B23K1/20B23K2101/20B24D18/009
Inventor 刘登发
Owner HENGYANG FENGSHUN AXLE CO LTD
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