Method for manufacturing diamond cutting wire

Abstract

The invention relates to a method for manufacturing a diamond cutting wire. The method comprises the following steps: treating the surface of diamond micropowder; carrying out chemical nickel-tungsten-phosphorus alloy plating on the surface of the diamond micropowder; carrying out passivating treatment on a chemical nickel-tungsten-phosphorus alloy plating layer on the surface of the diamond micropowder; carrying out plating manufacture on the diamond cutting wire. According to the method, the diamond micropowder is subjected to the chemical nickel-tungsten-phosphorus alloy plating and then subjected to the passivating treatment, and a layer of passive film is formed on the chemical nickel-tungsten-phosphorus alloy plating layer on the surface of the diamond micropowder, so that the corrosion resistance and rigidity of the diamond micropowder are enhanced; the chemical nickel-tungsten-phosphorus alloy plating layer can be used for enhancing the abrasion resistance of the diamond micropowder and ensuring that an alloy layer on the surface of the diamond micropowder is difficult to abrade in the circulating process of a plating solution, so that the continuous and stable production of the diamond cutting wire can be realized, and the production length of the diamond cutting wire is increased.

Description

technical field [0001] The invention belongs to the technical field of electroplating, and in particular relates to a method for manufacturing a diamond cutting wire. Background technique [0002] In the processing of hard and brittle materials such as silicon crystals, gemstones and ceramics, cutting is the key process. Due to the high brittleness and high hardness of hard and brittle materials, the cutting process is easy to cause damage to the material and reduce the yield. [0003] Electroplated diamond cutting wire is a commonly used cutting tool for hard and brittle materials. Electroplated diamond cutting wire uses electroplated metal as the binder and diamond as the abrasive. Through the electrodeposition of electroplated metal, the diamond particles are consolidated on the metal wire substrate. And made a cutting tool. The outstanding advantages of the electroplated diamond cutting wire are that the metal coating has a high holding force on abrasive grains, the coa...

AI Technical Summary

Problems solved by technology

There are following deficiencies in this kind of method for making electroplated diamond cutting wire: (1) the diamond micropowder that adopts is usually surface chemically plated one deck nickel-phosphorus alloy, and the corrosion resistance of the nickel-phosphorus alloy surface that this method obtains is not high enough, and long-term in electroplating solution Soaking will cause corrosion, which will affect the stability of continuous production of diamond cutting wire and the uniformity of diamond cutting wire quality; (2) The wear resistance of electroless nickel-phosphorus alloy on the diamond surface is not enough. The pump realizes the circulating flow of the electroplating solution. During the circulation of the electroplating solution, the nickel-phosphorus alloy on the surface of the diamond powder is likely to wear and fall off, so that the electroplating diamond cutting line cannot achieve long-term continuous and stable production.