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Method for brazing diamond drilling tools

A technology of diamond drilling and brazing method, applied in welding equipment, metal processing equipment, manufacturing tools and other directions, can solve the problems of affecting the use effect of the tool, affecting the life of the tool, increasing the processing difficulty, etc., to improve the usable range and welding heating time. The effect of short, short welding cycles

Active Publication Date: 2015-04-15
镇江大有硬质材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2. The solder layer at the welding joint is thin, because this type of solder is mostly a material with high plasticity, and an excessively thick solder layer will cause slight deformation of the tool when it is used, thus affecting the life of the tool
Too high and too long heating time will cause diamond graphitization, which will seriously affect the use effect of the tool
4. The positioning of the diamond must be accurate. Diamond is the hardest substance in nature and it is difficult to process. If the positioning is not accurate, the subsequent processing will be more difficult, and diamonds with larger particles are also required, so a lot of waste will be generated.

Method used

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  • Method for brazing diamond drilling tools

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put solder between the diamond drill rod and the diamond, the composition and weight percentage of the solder are: Ag60%, Cu35%, Ti1.5%, Si3.5%, assemble the cutter rod and electrode on the brazing device, and pass Direct current heating until the solder melts, and after the solder melts, the diamond is quickly pressed toward the drill rod, so that the diamond partially touches the drill rod, and the tool is cooled slowly after heating.

Embodiment 2

[0025] Put solder between the diamond drill rod and the diamond, the composition and weight percentage of the solder are: Ag71%, Cu23.5%, Ti0.5%, Si5%, assemble the cutter rod and electrode on the brazing device, and pass Heating with alternating current until the solder melts, and after the solder melts, the diamond is quickly pressed toward the drill rod, so that the diamond partially touches the drill rod, and the tool is cooled slowly after heating.

Embodiment 3

[0027] Place solder between the diamond drill rod and the diamond. The composition and weight percentage of the solder are: Ag71%, Cu20%, Ti1%, Si8%, and the cutter rod and electrode are assembled on the brazing device. Heating until the solder melts, and after the solder melts, quickly pressurize the diamond toward the drill rod, so that the diamond partially touches the drill rod, and the tool is cooled slowly after heating.

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Abstract

The invention discloses a method for brazing diamond drilling tools. The method includes placing a brazing material between a drilling tool bar and a diamond; placing the drilling tool bar and the diamond in a brazing device; electrifying the brazing device to heat up the drilling tool bar and the diamond until the brazing material is melted; and pressurizing the diamond towards the direction of the drilling tool bar after the brazing material is melted so that the diamond can be in contact with the drilling tool bar locally. When applied to production, the method for brazing the diamond drilling tools has the advantages that equipment is simple and is low in manufacturing cost and maintenance cost, a diamond drilling tool with high brazing strength and rigidity can be obtained, the brazing heating time is extremely short, and the brazing machining production efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of solder for metal brazing, in particular to a diamond drill bit brazing method. Background technique [0002] The diamond drill bit for optical fiber ferrule is a kind of superhard tool used to process the fast docking ceramic plug of optical fiber cable for communication. With the continuous progress of optical fiber communication technology in recent years, the application of optical fiber fast docking plug is becoming more and more extensive, and the demand continues to increase. The diamond drill bit for optical fiber ferrule is one of the important processing tools, and its performance and cost are directly related to the cost of optical fiber fast connectors. However, the processing technology of diamond drills has been blocked by developed countries for many years, and the use of products has always been dependent on imports. [0003] The fixing of diamonds includes mosaic wrapping, welding and bon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/00B23P5/00
Inventor 陈立军
Owner 镇江大有硬质材料有限公司
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