Integral high-frequency brazing process using welding fixtures

A welding fixture and process technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of inconsistent clamping force, unstable welding quality, low efficiency of brazing and welding of a single gear block, etc., to achieve Stable welding quality, simple structure and long service life

Active Publication Date: 2011-12-28
江苏华昌工具制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the defects of low welding efficiency, unstable welding quality and inconsistent clamping force when using a single gear block

Method used

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  • Integral high-frequency brazing process using welding fixtures
  • Integral high-frequency brazing process using welding fixtures
  • Integral high-frequency brazing process using welding fixtures

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Experimental program
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Effect test

Embodiment 1

[0023] see Figure 1-2 It is a component schematic diagram and a component assembly schematic diagram of a welding fixture according to an embodiment of the present invention. Depend on Figure 1-2 It can be seen that the welding fixture of the present embodiment comprises a disc-shaped upper pressing plate (1) and a disc-shaped lower pressing plate (2), and the upper pressing plate (1) and the lower pressing plate (2) all have central positioning holes arranged coaxially (3), the lower pressing plate (2) is provided with a tooth block positioning hole (21), and the lower surface of the lower pressing plate (2) is provided with a tooth block installation groove (22), which is characterized in that the upper pressing plate (1) and the lower pressing plate (2) Install tooth block positioning screw (5) and tooth block compression spring (6); said lower pressing plate is also provided with 3 auxiliary positioning holes (4) evenly along the concentric ring; wherein the upper press...

Embodiment 2

[0025] In the process of this embodiment, the uniformly stirred silver-based solder and welding aid are evenly applied on the surface of the diamond tooth block to be brazed, and then the grinding disc substrate and the diamond tooth block are carried out using the welding fixture disclosed in Example 1. Position and fix, and then put it into a vacuum brazing furnace for brazing; the proportion of silver-based solder is Ag: 35wt%, Cu: 25wt%, Zn: 18wt%, Ni: 12wt%, Cd: 2wt %, Mn: 8wt%; the ratio of welding flux is: ZnCl 2 : 35wt%, NH 4 Cl: 35wt%, BaCl 2 : 10wt%, CaF 2 : 10wt%, borax: 10wt%; The addition ratio of silver-based solder and welding aid is 3: 1-5: 1; The average particle diameter of silver-based solder powder is 10-200um; The process parameter of brazing is: The brazing temperature is 690-715°C, the brazing time is 13-16s, and the vacuum degree is 0.01Pa.

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PUM

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Abstract

The invention relates to a process for carrying out entire high-frequency brazing by a welding jig, which comprises the preparation of a matrix and the preparation of diamond gear blocks. Uniformly stirred silver based brazing filler metal and welding adjuvants are uniformly coated on surfaces to be brazed of the diamond gear blocks, then a millstone matrix and the diamond gear blocks are positioned and fixed by the welding jig, and finally the millstone matrix and the diamond gear blocks are arranged in a vacuum brazing furnace to be brazed. The process for carrying out entire high-frequencybrazing by the welding jig overcomes the technical problems of complex manufacturing process, low production efficiency, unstable quality and high production cost of the diamond millstone in the prior art, and on the premise of ensuring the welding quality to be stable, the brazing efficiency is greatly improved, and the production cost is effectively reduced.

Description

technical field [0001] The present invention relates to a high-frequency brazing process, and more specifically, the present invention relates to a process for performing overall high-frequency brazing by using a welding fixture. Background technique [0002] Diamond grinding discs have been widely used in various aspects of the grinding field. Diamond grinding disc is an effective tool for grinding high-brittle materials such as stone, cemented carbide, glass, and ceramics. The diamond grinding disc is composed of a diamond cutter head and a substrate. During the production process, the diamond cutter head and the substrate are prepared separately, and then the diamond cutter head is fixed on the substrate by welding. In the prior art, the commonly used method is that the diamond segment is sintered in vacuum hot pressing equipment; the connection technology between the segment and the base body adopts high-frequency induction brazing. [0003] Brazing is one of the three...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/008B23K3/08B23K35/30B23K35/36
Inventor 华川海
Owner 江苏华昌工具制造有限公司
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