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Method for forming mullite-based ceramic cylinder reinforced composite wear-resistant steel plate

A mullite-based, reinforced composite technology is applied in the field of surface engineering, which can solve the problems of low interface bonding strength and poor wear resistance, and achieve the effects of excellent wear resistance, low price and improved use value.

Inactive Publication Date: 2014-11-12
陈威
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, brazing or adhesive bonding is generally used to connect ceramics and metals, and the interface bonding strength is low and the wear resistance is poor.

Method used

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  • Method for forming mullite-based ceramic cylinder reinforced composite wear-resistant steel plate
  • Method for forming mullite-based ceramic cylinder reinforced composite wear-resistant steel plate

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Experimental program
Comparison scheme
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Embodiment Construction

[0013] Best practice:

[0014] Step 1, preparing composite powder of sillimanite and iron, the ratio is: sillimanite powder accounts for 80%wt, its particle size is 200-300 mesh, Fe powder 20%wt, its particle size is 200 mesh. After mixing, it is pressed into a round cylindrical closed extrusion die with a diameter of 15mm to form a round cylindrical prefabricated block, and sintered at 1750°C for 2 hours at normal pressure to form mullite, or in a graphite mold with a pressure of 50MPa and sintered at 1750°C for 1 hours to form, to get figure 1 Round-ended mullite-based composite cylinders are shown.

[0015] Step two, such as figure 2 As shown, ordinary carbon steel is taken as the base steel plate, and the base steel plate is surrounded by refractory bricks and sealing mud to make a reaction pool, and the round heads of mullite-based composite cylinders with round heads are placed on the surface of the steel plate. Leave a gap of 5 mm between each other, use a steel pla...

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Abstract

The invention relates to a method for forming a mullite-based ceramic cylinder reinforced composite wear-resistant steel plate. The method comprises the following technological processes that firstly, sillimanite and iron composite powder is prepared, according to the matching ratio, the sillimanite and iron composite powder comprises, by weight, 80 percent of sillimanite power and 20 percent of Fe powder, the sillimanite power and the Fe powder are evenly mixed and are pressed into a round-head cylindrical precast block in a round-head cylindrical closed-type extruding die, under the constant pressure, the round-head cylindrical precast block is sintered for two hours at the temperature of 1750 DEG C to form mullite, and round-head mullite-based composite material cylinders are obtained; secondly, plain carbon steel is taken as a matrix steel plate, the periphery of the matrix steel plate is manufactured to a reaction tank by using refractory bricks and box sealing mud, round heads of the round-head mullite-based composite material cylinders are placed on the surface of the steel plate upwards, certain gaps are reserved between the round-head mullite-based composite material cylinders, a steel plate with round blind holes in the surface is used for pressing the round heads of the round-head mullite-based composite material cylinders, the round-head mullite-based composite material cylinders are preheated at the temperature of 300 DEG C, then molten steel is cast in the gaps of the round-head mullite-based composite material cylinders, the molten steel, the cylinders and the steel plate are welded together in a casting mode, and the mullite-based ceramic cylinder reinforced composite wear-resistant steel plate is formed. The method is high in interface bonding strength and excellent in wear-resisting property.

Description

technical field [0001] The invention relates to a method for forming a mullite-based ceramic cylinder reinforced composite wear-resistant steel plate. Belongs to the field of surface engineering technology Background technique [0002] Ceramic composite steel plate has the characteristics of high hardness and excellent wear resistance. It can be widely used in the environment of wear resistance, high temperature resistance, corrosion resistance and high pressure resistance in steel plants, mines, power plants, coal preparation plants, chemical and cement enterprises. At present, brazing or adhesive bonding is generally used to connect ceramics and metals, and the interface bonding strength is low and the wear resistance is poor. Contents of the invention [0003] The purpose of the present invention is to overcome the above disadvantages and provide a method for forming a mullite-based ceramic cylinder reinforced composite wear-resistant steel plate with high interface b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/04C04B35/185
Inventor 陈威陈大智高一翔朱丹苏宏艺
Owner 陈威
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