Production of titanium nitride wire mesh metal-based composite material
A titanium nitride wire mesh and a preparation process technology are applied in the field of preparation technology of titanium nitride wire mesh metal matrix composite materials, and can solve the problem that the wear resistance of parts cannot be improved, the wear resistance is not significantly improved, and the toughness of the composite material is poor. problems, to achieve the effect of improving wear resistance, improving wear resistance, and stable production quality
Inactive Publication Date: 2010-05-19
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology
In the prior art, there is a composite process using steel, alloy steel wire mesh and ceramic wear-resistant materials to improve and improve the performance indicators such as wear resistance of the material, but the wear resistance of these technologies is not significantly improved, resulting in Composite materials with poor toughness
In the prior art, there is also a technology to improve the wear resistance of the part surface by nitriding the whole part, but this technology can only form a very thin nitrided layer on the entire surface of the whole part, and cannot improve the local wear resistance of the part as required. Grinding and adjusting the thickness of wear-resistant layer
Method used
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[0029] Now take titanium nitride wire mesh-aluminum silicon alloy piston ring as an example
[0030] Such as Figures 1 to 4 As shown, the piston ring 3 is a cylindrical part with a circular cross-section. In practical applications, the outer cylindrical surface 4 of the piston ring 3 is connected to the piston. The inner surface 5 of the piston ring 3 is also a cylindrical surface, and the inner surface 5 is a part that is easy to wear Therefore, the inner surface 5 of the piston ring 3 is required to be wear-resistant, so the titanium nitride mesh 1 is placed on the corresponding position of the inner surface 5 of the piston ring 3 in the casting mold to improve the wear resistance of the inner surface 5 of the piston ring 3 Abrasive. The shape of the titanium nitride wire mesh 1 is a cylindrical shape with a circular cross section, the shape of the inner cylindrical surface is consistent with that of the inner surface 5 of the piston ring 3, and the thickness is 3-20 mm. ...
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Abstract
Production of titanium nitride wire mesh metal-based composite material is carried out by braiding metal wire mesh by metal wire, putting it into gas nitridizing furnace, nitridizing at 1000-1400degree in nitride or ammonia for 1-5hrs to obtain titanium nitride wire mesh, fixing it onto related abrasive work piece, forming, pouring, smelting aluminum or magnesium alloy to obtain liquefied aluminumalloy or magnesium alloy, and pouring them into abrasive work piece cast by casting method. It's cheap and light, has excellent corrosion, high-temperature, impact and abrasion resistances and long usage life.
Description
technical field [0001] The invention relates to a preparation process of a wear-resistant composite material, in particular to a preparation process of a titanium nitride wire mesh metal matrix composite material. The invention is applied to the manufacturing process of wear-resistant and corrosion-resistant materials in industries such as aerospace, mining, building materials, metallurgy, electric power, automobiles, and railways. Background technique [0002] Due to the characteristics of high specific strength, low specific density, corrosion resistance and good casting performance, aluminum alloys are more and more widely used in automotive, aerospace and other fields. However, due to the relatively low hardness of aluminum alloys, the wear resistance is not ideal. Magnesium alloys have become a research hotspot in the field of materials due to their low density, magnetic shielding and easy recycling. However, magnesium alloys have low strength and poor wear resistance....
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IPC IPC(8): C22C47/00C22C47/02C22C47/12C22C49/00C22C101/16
Inventor 刘环许云华张胜利牛立斌
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY