Preparation method of high temperature brazing filler metal for brazing hard alloy cutters

A technology of high-temperature solder and hard alloy, which is applied in welding equipment, metal processing equipment, welding/cutting media/materials, etc., and can solve problems such as limited applicable joint forms, complicated solder preparation process, and high solder price. , to achieve the effect of ensuring high temperature performance, good solder wettability, and low manufacturing cost

Active Publication Date: 2012-09-19
哈尔滨瀚霖科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems of low high-temperature strength, poor wettability, expensive brazing material used, limited applicable joint form and complex preparation process of the brazing material of cemented carbide tools, and provides a hard Preparation method of high-temperature solder for brazing alloy cutting tools

Method used

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  • Preparation method of high temperature brazing filler metal for brazing hard alloy cutters
  • Preparation method of high temperature brazing filler metal for brazing hard alloy cutters

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specific Embodiment approach 1

[0017] Specific embodiment one: present embodiment a kind of high-temperature brazing filler metal that is used for cemented carbide tool brazing is made of 10%~20% Ag, 10%~15% TiH by weight percentage 2 , 10% to 15% of Ni, 5% to 10% of Sn, 0.5% to 1.5% of Cr and 38.5% to 64.5% of Cu.

[0018] The mass purity of the powder in this embodiment is 99%-99.9%.

specific Embodiment approach 2

[0019] Specific embodiment two: the difference between this embodiment and specific embodiment one is that the high-temperature brazing filler metal used for cemented carbide tool brazing consists of 12% to 18% Ag, 11% to 14% TiH by weight percentage 2 , 11% to 14% of Ni, 6% to 9% of Sn, 0.7% to 1.3% of Cr and 44.7% to 59.3% of Cu. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0020] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the high-temperature brazing filler metal used for cemented carbide tool brazing consists of 15% Ag, 12% TiH by weight percentage 2 , 12% Ni, 8% Sn, 1.0% Cr and 52% Cu. Others are the same as in the first embodiment.

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Abstract

The invention discloses a preparation method of a high temperature brazing filler metal for brazing hard alloy cutters, and relates to a brazing material and a preparation method thereof. The invention aims to solve the problems that the traditional brazing filler metal for brazing the hard alloy cutters has low high-temperature strength and high price, the used joint mode is limited and the preparation process for the brazing filler metal is complicated. The high temperature brazing filler metal for brazing the hard alloy cutters is prepared by mixing Cu, Ag, TiH2, Ni, Sn and Cr. The preparation method comprises the following two steps: preparing the materials; and mechanically alloying. The high temperature brazing filler metal has good wettability and brazing quality; the brazed joint has good high-temperature mechanical properties, and meets the requirements of various modes of joints; and the brazing filler metal has low cost, the preparation process and equipment are simple, and the production efficiency is high. The high temperature brazing filler metal can be widely applied in the field of hard alloy cutter welding technology in China.

Description

technical field [0001] The invention relates to a preparation method of brazing material. Background technique [0002] The development level of the cutting tool industry is the key that directly determines the country's manufacturing capacity. In recent years, my country's cutting tool industry has made considerable development and progress. At present, it has been able to produce various forms of cutting tool products. Carbide cutting tools are the most important in cutting tool products. one of the components. There is still a large gap between the overall level of cemented carbide cutting tools in my country and foreign countries, and the welding technology of cemented carbide cutting tools has become a bottleneck technology restricting the development of cutting tools. [0003] The most important welding problem in cemented carbide cutting tools is to achieve a reliable connection between the cemented carbide blade and the low-carbon steel substrate. There are two main ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/40
Inventor 陈良勇曹健张鹏
Owner 哈尔滨瀚霖科技开发有限公司
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