A kind of preparation method of high manganese steel-based SIC ceramic particle composite material
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, and achieve the goals of improving overall strength and hardness, strong applicability, and reducing wear Effect
Inactive Publication Date: 2011-12-21
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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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 method for preparing a high-manganese steel-based SiC particle surface composite material. In the method, the surface alloying treatment is first carried out on the SiC particle; then the lost foam pattern is cut, and the particles are filled in the position of the pattern to be compounded, and the lost foam casting is performed according to the conventional method. The process carries out paint coating and molding, controls vacuum degree, pouring temperature and cooling time during casting, and obtains sintered high manganese steel-based SiC particle composite material after stripping and cleaning. The high-manganese steel surface ceramic composite material prepared by the method of the invention improves the overall strength and hardness, reduces abrasion of the wear-resistant surface of the part during use, improves wear resistance and prolongs service life. The process is simple, the applicability is strong, and it can be widely used in many industries such as metallurgy, mining, and building materials.
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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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