Plasma cladding process for crust breaking hammer

A technology of plasma cladding and shelling hammer, which is applied in the field of shelling hammer manufacturing, can solve the problems of high temperature resistance, poor corrosion resistance, entry of iron and other elements, and influence on the quality of molten aluminum, achieving low cost, enhanced performance and Good quality and compactness of surfacing layer

Inactive Publication Date: 2018-05-18
宁国市开源电力耐磨材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most shelling hammers used in electrolytic aluminum tanks are made of low-carbon steel, high-manganese steel or alloy steel, which have poor high temperature resistance and corrosion resis

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1:

[0018] A shell hammer plasma cladding process, comprising the following steps:

[0019] (1) Fix one end of the processed metal substrate on the turntable of the surfacing machine;

[0020] (2) Baking the prepared alloy powder at 150°C for 1-2h; the alloy powder contains the following components by weight percentage: C 1.0%, Cr 25%, Ni 18%, Si 0.6%, B 2%, Ti2.5%, Nb 0.2%, W 1.3%, Hf0.2%, Fe balance.

[0021] (3) Place the baked alloy powder in the container, set the program of the surfacing machine according to the requirements, turn on the plasma torch protection gas argon and power supply of the surfacing machine, and clad the alloy powder on the metal substrate by continuous spraying method , through high-energy-density automatic welding to melt and rapidly solidify with the surface of the substrate, thereby forming a metallurgically bonded surface coating on the surface of the substrate, the coating thickness is 2-5mm; the power supply voltage is 380V,...

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Abstract

The invention discloses a plasma cladding process for a crust breaking hammer. The plasma cladding process comprises the steps that one end of a metal base body which is machined and formed is fixed on a rotary disc of a surfacing welding machine; prepared alloy powder is baked at the temperature of 150 DEG C for 1-2 hours; and the baked alloy powder is placed in a container, the program of the surfacing welding machine is set according to requirements, a plasma torch protective argon source and a power supply of the surfacing welding machine are started, the alloy powder is clad on the metalbase body through a continuous jetting method, through high-energy density automatic welding, the alloy powder and the surface of the base body are molten and then rapidly solidified, so that a surface coating which is in metallurgical bonding with the surface of the base material is formed on the surface of the base material, and the thickness of the coating is 2-5 mm. The plasma cladding processfor the crust breaking hammer has the advantages that the surfacing welding layer is good in performance, high in bonding strength, and good in compactness, the melting depth of a workpiece is controllable, the dilution rate of the surfacing welding layer is low, the formed shape of the surfacing welding layer is regular, the pollution is small, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of shell hammer manufacturing, in particular to a shell hammer plasma cladding process. Background technique [0002] In modern industrial production, due to the harsh environment in which the relevant mechanical parts operate, the surface is required to have good wear resistance, corrosion resistance, high temperature resistance and high hardness to meet the needs of special functions. Metal matrix composites have the advantages of flexible design, easy molding, light weight, and corrosion resistance, which can greatly improve the properties of the substrate surface such as wear resistance, corrosion resistance, high temperature resistance, heat conduction, and heat insulation. [0003] With the upgrading of industrial technology, the demand for cladding products on the surface of the substrate is increasing. Whether it is the preparation of metal matrix composites and the cladding process, research is acti...

Claims

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Application Information

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IPC IPC(8): C23C24/10C22C38/02C22C38/54C22C38/50C22C38/48C22C38/44C22C30/00
CPCC23C24/103C22C30/00C22C38/002C22C38/02C22C38/44C22C38/48C22C38/50C22C38/54
Inventor 汪德发张联合徐超汤新明余方有赵文定
Owner 宁国市开源电力耐磨材料有限公司
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