Feed for preparing antibacterial stainless steel cutting tool, cutting tool and preparation method of cutting tool

Abstract

The invention discloses a preparation method of an antibacterial stainless steel feed. The preparation method comprises the following steps: S1, uniformly mixing nanoscale silicon carbide spherical powder and powder with an antibacterial function into 10-15% of a binder, and mixing to obtain a premix A; s2, uniformly mixing the water-gas combined atomized stainless steel powder and tungsten carbide into 85-90% of a binder, and mixing to obtain a premix B; and S3, compounding the premix A and the premix B, banburying, crushing and granulating to obtain the feed. The invention further discloses a preparation method of the antibacterial stainless steel cutting tool. The preparation method comprises the following steps of preorder preparation, injection, degreasing, sintering, heat treatment and edging. The metal injection molding method is adopted for preparing the antibacterial stainless steel cutting tool, the feeding fluidity is good, antibacterial elements are evenly distributed, the sintering density is high, the size stability is good, the product size precision is high, the mechanical property is excellent, batch production can be achieved, machining is little or not needed later, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of antibacterial stainless steel, in particular to a feeding material and a cutting tool for preparing antibacterial stainless steel cutting tools and a preparation method thereof. Background technique [0002] Harmful microorganisms in nature are a serious threat to human health, and millions of people die from bacterial infections all over the world every year. Humans are infected with bacteria mainly through imported food and contact with bacteria. Kitchen utensils, daily utensils, and especially medical utensils that are in direct contact with food often become the source of microbial growth and reproduction. The demand for kitchenware and medical appliance products with excellent antibacterial and antibacterial properties is increasing. [0003] Traditional antibacterial stainless steel is to precipitate a certain volume fraction of copper-rich or silver-rich precipitates during high-temperature aging....

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Problems solved by technology

[0005] The key to metal injection molding technology lies in the preparation of feed materials. At present, the preparation of feed materials for metal powder injection molding commonly used in China is complicated, and there are defects such as poor fluidity, low strength, difficult debonding, uneven density, and many limitations; many stainless steel Manufacturers of iron and iron-based products mostly buy foreign feed materials, especially BASF feed materials in Germany, but their prices are very expensive, more than twice that of domestic feed materials, resulting in higher production costs

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