Preparation process of metal fiber

Abstract

The invention discloses a preparation process of a metal fiber. The preparation process of the metal fiber is characterized by comprising the following steps of (1) coating auxiliary materials on the surfaces of multiple metal wires by a continuous electrolytic method; (2) placing multiple metal wires coated with auxiliary materials in an auxiliary tube stock to form a metal composite, wherein the auxiliary tube stock comprises the following materials by weight percent: 0.01-0.03wt% of boron or 0.04-0.15wt% of rare earth, 0.10-0.30wt% of carbon and the balance of iron and unavoidable impurities; (3) drawing the metal composite on a wiredrawing machine for many times, annealing within the range of 450-700DEG C / 1-3h after each drawing to obtain metal compound wires; and (4) electrolyzing the metal compound wire as an anode in an acid solution to remove coated auxiliary materials and packaged auxiliary tube stocks, then cleaning with deionized water for many times, and finally fully drying at 100-120 DEG C to obtain the metal fiber. The preparation process has the advantages of low cost and environment protection.

Description

technical field [0001] The invention relates to the field of metal processing, in particular to a preparation process of metal fibers. Background technique [0002] At present, there are four kinds of metal fiber production methods: monofilament drawing method, cluster drawing method, cutting method, and melting extraction method. With the continuous development of science and technology, the cluster drawing method has become the main production method for preparing metal fibers. The cluster drawing method is a method of producing multi-filament metal wire improved on the basis of the traditional single wire drawing metal wire method. The production of metal fibers by the cluster drawing method first needs to coat the auxiliary material on the metal wire to make a coated wire, and then pack the coated wire into the auxiliary pipe to make a composite wire and then carry out drawing processing. The composite wire is drawn to the required After removing the coated auxiliary m...

AI Technical Summary

Problems solved by technology

However, the traditional cluster drawing method to produce metal fibers generally uses copper as the auxiliary material for coating and the auxiliary pipe for packaging, and the production cost is high

At the same time, the existing technology uses nitric acid or other inorganic acid pickling process to separate the coated auxiliary material and the packaged auxiliary pipe. However, the pickling process generally needs to consume a large amount of inorganic acid to completely separate the auxiliary material and the auxiliary pipe. Process effect, a large amount of waste acid has a great impact on the environment