Cemented carbide with iron-nickel substituting cobalt and titanium substituting part of tungsten and its production process

Abstract

The invention provides a novel hard alloy with iron and nickel replacing cobalt and titanium replacing part of tungsten and a production technology of the novel hard alloy. The novel hard alloy with the iron and the nickel replacing the cobalt and the titanium replacing part of the tungsten is a hard alloy prepared from raw materials including tungsten carbide, titanium carbide, iron and nickel composite powder, cobalt powder and chromium carbide with the weight ratio being (60-80):(3-10):(10-20):1:(0.35-0.7). By means of the novel hard alloy with the iron and the nickel replacing the cobalt and the titanium replacing part of the tungsten, a novel hard alloy material with iron and nickel replacing cobalt and titanium replacing part of tungsten is adopted, the problems that the price of cobalt stays at a high level and tungsten and cobalt resources are less and less are solved, environment pollution is reduced through the production technology, and the problem of potential safety hazards is solved; and meanwhile, the pressing forming performance of the hard alloy and the quality of the hard alloy material are ensured, and a wide and long-range application prospect is achieved.

Description

technical field [0001] The invention belongs to the technical field of hard alloy production, and in particular relates to a novel hard alloy in which cobalt is substituted by iron nickel and part of tungsten is substituted by titanium, and a production process thereof. Background technique [0002] With the rapid development of industrial technology, cemented carbide tool materials have rapidly penetrated into all aspects of industrial production, gradually replacing the original high-speed steel materials, and have shown unparalleled excellent performance. The main component of cemented carbide is tungsten carbide (WC). Since cobalt powder has good wettability to tungsten, cobalt is generally used as the bonding phase and produced by powder metallurgy, which has high wear resistance and strength. The high wear resistance makes the service life longer than that of high-speed steel tools by dozens or even hundreds of times, which greatly improves production efficiency, reduc...

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Problems solved by technology

[0005] In order to solve the above-mentioned existing cemented carbide material production using rubber technology to mold cemented carbide, dust powder will remain, which will affect the quality of the product or use paraffin as a molding agent, which is difficult to mix evenly in the mixture, which will affect the pressing and forming of cemented carbide. performance, quality of cemented carbide, and potential safety hazards, as well as the cemented carbide materials produced by the existing technology, the main raw materials are tungsten and cobalt, and tungsten and cobalt are scarce in resources, especially cobalt is particularly scarce The price of strategic materials remains high, while the market demand for cemented carbide is increasing, and tungsten and cobalt resources are becoming less and less, but the iron, nickel and titanium deposits are quite abundant and the price is cheap. The present invention provides a technical problem that can guarantee The performance of cemented carbide pressing and forming and the special excellent performance of low-cost cemented carbide materials. At the same time, when the cemented carbide mixture is sintered, argon is used as the carrier gas to dewax and recover the paraffin, which greatly improves the quality of the product. , New cemented carbide and its production process that reduce pollution and reduce potential safety hazards, such as iron-nickel substituting cobalt, titanium substituting part of tungsten

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