Nickel-plated diamond micro-powder enhanced babbitt metal and preparation process

Abstract

The invention discloses nickel-plated diamond micro-powder enhanced babbitt metal and a preparation process. The preparation process comprises the steps of S1, separating and melting; S2, metal mixing; S3, metal casting; S4, metal cooling; and S5, finished product taking. According to the nickel-plated diamond micro-powder enhanced babbitt metal and the preparation process, multiple kinds of metal are separated and molten, the situation that the final proportion is affected by metal impurities is avoided, and therefore the stability of the proportion is guaranteed; various molten metal is mixed through a mixing barrel, so that the mutual mixing uniformity of the molten metal is guaranteed, the situation of metal precipitation is avoided, and the product quality is guaranteed; vacuum extraction is carried out on a forming box, so that the situation of sand holes in products is avoided; castings are directly and rapidly cooled, so that the forming speed of the castings is increased; and a taking electric push rod drives a taking supporting frame to directly and rapidly take the products, so that rapid collection of the products is facilitated, the production speed of the products is increased through multi-step treatment, and the quality of the products is guaranteed.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to a nickel-plated diamond micropowder reinforced babbitt alloy and a preparation process thereof. Background technique [0002] Babbitt alloy is a kind of low-melting point bearing alloy with hard particle phase distributed on the soft matrix. There are three series of tin-based, lead-based and cadmium-based. The representative composition of tin-based Babbitt alloy is: antimony 3% to 15% , copper 2% to 6%, cadmium <1%, tin balance, tin-based and lead-based bearing alloys with anti-friction properties, cast tin-based Babbitt alloy ZSnSb11Cu6 solid phase point temperature is 240 ° C, liquid phase temperature is 370°C, the maximum operating temperature shall not exceed 100°C, the friction coefficient is 0.005 when there is oil, and 0.28 when there is no oil. [0003] However, at present, when melting and casting alloys, a variety of raw materials are generally put together direc...

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Problems solved by technology

[0004] The present invention provides a nickel-plated diamond powder-reinforced Babbitt alloy and its preparation process, which can effectively solve the above-mentioned background technology. At present, when melting and casting alloys, various raw materials are usually directly put together for melting, resulting in During melting, some impurities are mixed inside, which makes the actual mixing ratio deviate. At the same time, the air inside the mold causes blisters or cavities in the product during casting, which leads to abnormalities in the product.

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