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Brazing method of wear-resistant sheet

A brazing method and technology of wear-resistant sheets, which are applied in the brazing of wear-resistant sheets and substrates, and in the field of brazing wear-resistant sheets, can solve problems such as waste of hard alloys, high scrap rate, and low production efficiency, and achieve brazing High welding efficiency and good quality

Inactive Publication Date: 2020-04-17
HANDAN HUIQIAO COMPOSITE MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This production method has the following disadvantages: 1) Due to the difficulty in placing and fixing the hard alloy shape, the production efficiency is low; 2) The impact of the metal liquid during pouring may cause the hard alloy to shift, the scrap rate is high, and the hard alloy is seriously wasted , high production cost; 3) The heat treatment of alloy cast steel will affect the performance of cemented carbide
However, the traditional brazing method has low production efficiency. During the brazing heating process, the alloy cast steel will affect its mechanical properties due to high temperature heating.
For attached figure 1 And attached figure 2 As far as the deep loosening shovel is concerned, due to its irregular shape, the brazing surface cannot be flat at the same time, making it impossible to heat and braze the alloy cast steel as a whole

Method used

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  • Brazing method of wear-resistant sheet
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  • Brazing method of wear-resistant sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] attached figure 1 It is the product schematic diagram of subsoiling shovel I, brazing wear-resistant sheets on the two slopes A and B of its head, and welding wear-resistant sheets on the C and D surfaces of its flanks. When brazing the wear-resistant sheet on the slope B, place the surface B horizontally, and the traditional brazing process can be used to complete the welding of the wear-resistant sheet. When brazing the wear-resistant sheet on the other slope A, place surface A horizontally at this time, and the surface B is an inclined surface. During the heating process of the wear-resistant sheet on the brazing surface A, it is easy to make the wear-resistant sheet that has been brazed on the B surface The brazing material melts and flows along the inclined surface, making the brazing of the wear-resistant sheet on the B side invalid.

[0018] This embodiment uses high-frequency induction rapid surface heating, using image 3 The single-turn induction coil shown,...

Embodiment 2

[0029] attached figure 2 It is the product schematic diagram of the subsoiler shovel II. The welding position of the wear-resistant plate of the subsoiler shovel II is basically the same as that of the subsoiler shovel I. The tooling used is different, and the induction heating parameters are basically the same as the brazing process.

[0030] Two kinds of subsoiling shovels are supplied in small batches, the mechanical properties and service life meet the requirements, the brazing performance of the products is reliable, and no bad feedback has been received from users such as peeling off, cracks, and non-wearing of wear-resistant sheets, and they are rated as high-quality suppliers by customers. .

[0031] The wear-resistant sheet brazing method has a simple process, low requirements on operator skills, good brazing quality, and can meet the needs of mass industrial production, and the automatic production of wear-resistant sheet brazing can be realized after the introduct...

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Abstract

The invention discloses a brazing method of a wear-resistant sheet. The method adopts high-frequency induction heating and comprises the following steps that (1) cleaning is conducted on the brazed surface; (2) the brazed surface is placed horizontally, the solder and flux are spread, and then the wear-resistant sheet is placed; (3) two parallel induction tubes, corresponding to the brazed surface, on an induction ring are used for induction heating and located 5-15 mm above the brazed surface, the induction current is 20-30 A, the voltage is 400-600 V, and the frequency is 100-400 KHz; (4) when the solder and flux are melted, the high frequency induction current is adjusted, heat preservation is conducted, and the pressure is applied on the wear-resistant sheet with a pressing bar; and (5) after the heat preservation for 10-15 s, the power is cut off, and the pressure is maintained for 5-10 s until the solder is solidified. The method is suitable for brazing of the wear-resistant sheet with a complex shape matrix, the brazing efficiency of the wear-resistant sheet is high, quality is high, no pollution is achieved, and the double-performance ideal composite of the matrix and the wear-resistant sheet is obtained.

Description

technical field [0001] The invention is applied in the field of manufacturing composite wear-resistant parts, and in particular relates to a production method for brazing wear-resistant sheets, and is especially suitable for brazing of wear-resistant sheets and substrates of composite wear-resistant parts. Background technique [0002] Wear-resistant parts are indispensable spare parts for machinery in various industries, and the annual consumption of wear-resistant parts reaches more than 20,000 tons. According to different wear-resistant working conditions, different materials such as steel, ceramics and rubber can be selected as wear-resistant materials. For metal wear-resistant materials, in general, the hardness is high and the wear resistance is good, but the brittleness is high, the toughness is low, and it is easy to break easily. Therefore, wear resistance and toughness become two irreconcilable properties. With the development of technology, in order to reduce cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/002B23K1/20B23K3/00B23K3/047B23K3/08
CPCB23K1/002B23K1/20B23K3/00B23K3/047B23K3/0475B23K3/08
Inventor 邢振国常连波孙凯孙明明邢万里
Owner HANDAN HUIQIAO COMPOSITE MATERIAL TECH CO LTD
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