High manganese steel Sic ceramic particles composite preparation method

A technology of composite materials and high manganese steel, which is applied in the field of preparation of high manganese steel-based ceramic particle composite materials, can solve the problems of high manganese steel not being wear-resistant, so as to improve the overall strength and hardness, prolong life, and improve wear resistance Effect

Inactive Publication Date: 2010-09-22
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology

The high wear resistance of high manganese steel comes from its high cold work hardening ability. However, under the working condition that the impact load is not enough to cause strain hardening, high manganese steel is not wear-resistant.

Method used

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  • High manganese steel Sic ceramic particles composite preparation method
  • High manganese steel Sic ceramic particles composite preparation method
  • High manganese steel Sic ceramic particles composite preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] First, purchase 36-mesh SiC particles (green) for industrial use. In order to avoid the impact of trace impurities on the subsequent surface treatment effect, the SiC particles are first ultrasonically cleaned with acetone solution. The specific cleaning steps are:

[0021] (1) SiC particles are placed in a beaker;

[0022] (2) Add an appropriate amount of acetone solution into the beaker and put it into an ultrasonic cleaner for cleaning for 5 minutes;

[0023] (3) Rinse with distilled water;

[0024] (4) Blow dry with cold wind and store for later use.

[0025] Take appropriate amount of cleaned SiC particles for surface alloying treatment by calculation. The specific treatment method is: determine the addition amount of alloy powder (Al powder) and binder through coating test (see Table 1), and thus can be calculated respectively The surface is coated with 200 mesh Al powder and the amount of adhesive and weighed for future use.

[0026] Thoroughly mix the cleaned...

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Abstract

The invention discloses a high manganese steel Sic particles composite preparation method. In the method, the surface of Sic particles is alloyed at first, a lost foam pattern is cut, particles are filled at the position of the foam pattern to be composited, the coating of dope and molding are carried out according to the normal lost foam casting technology, the vacuum degree, the coating temperature and the cooling time are controlled in the coating process, and the high manganese steel Sic particles composite is obtained through demoulding and cleaning. The method improves the while strength, rigidity, abrasion resistance of the high manganese steel surface ceramic composite prepared through the method, makes the abrasion on the abrasion resistant surface of parts reduced, prolongs the service life of the composite, has the advantages of simple technology and strong applicability and can be extensively applied to metallurgy, mine, building material and other industries.

Description

technical field [0001] The invention belongs to the technical field of metal-based composite materials, and in particular relates to a preparation method of a high-manganese steel-based ceramic particle composite material. Background technique [0002] As a traditional high-toughness and wear-resistant material, high-manganese steel has been widely used in many industries such as metallurgy, mining, and building materials, and its annual consumption in the world has reached more than 100,000 tons. In actual production, workpieces are often subject to more complex wear conditions, and the wear surface of the workpiece must bear both wear and impact loads. This objectively requires that the wear-resistant parts not only have high hardness within a certain thickness of the surface of the working surface to provide sufficient cutting wear resistance, but also require that the entire workpiece itself has sufficient toughness. However, it is difficult for any single material to h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/08
Inventor 马幼平杨蕾王成辉李秀兰
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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