Amorphous metal microfilament glass coating layer chemical removing method and corrosion liquid preparation method

Abstract

The invention relates to an amorphous metal microfilament glass coating layer chemical removing method and a corrosion liquid preparation method. According to the invention, with a chemical corrosion method, glass-coated amorphous metal microfilament is subjected to a soaking treatment, such that glass is removed together with oil stain; when the glass coating is removed, surface quality and performance of the amorphous metal microfilament are not affected. The invention provides a technical scheme that: an amorphous metal microfilament glass coating layer chemical removing corrosion liquid is composed by compounding by using thiocyanate, a surfactant, hydrofluoric acid, water, and one or more selected from the organic corrosion-retarding agents such as thioureas, pyridines, uracil, urotropin, mercaptobenzothiazolyl, and the like. The preparation method of the amorphous metal microfilament glass coating layer chemical removing corrosion liquid is simple and feasible, and amorphous metal microfilament surface morphology and performance are not affected when glass coating layer is removed. Processed amorphous metal microfilament is easy to weld. Therefore, metal bare wire can be prepared with low cost and high efficiency. The amorphous metal microfilament can be used in developments of sensitive components with high precision and good repeatability.

Description

technical field [0001] The invention relates to a glass corrosion solution and a preparation method thereof, in particular to a chemical removal of an amorphous metal microwire glass cladding layer and a preparation method of the corrosion solution. [0002] Background technique [0003] The glass-coated melt-spinning method adopts rapid solidification technology, and can prepare glass-coated metal microwires with a diameter of 5-100 microns. The preparation of metal microwires and the coating of the glass insulating layer can be completed at the same time. A short process and efficient preparation method. Amorphous metal microwires prepared by melt spinning have the characteristics of small diameter, high strength, high toughness, corrosion resistance, and excellent electromagnetic properties, and can be used to make various miniature sensing and transducer elements. , aerospace, national defense and other fields have important uses. However, the existence of the glass c...

AI Technical Summary

Problems solved by technology

At present, there are physical and chemical methods to remove the glass cladding layer. Among them, physical methods such as mechanical rolling and ultrasonic crushing are likely to cause stress damage to amorphous metal filaments and affect their electromagnetic properties. Chemical methods generally use hydrofluoric acid. Corrosion, but due to the strong chemical reaction between hydrofluoric acid and iron, cobalt, silicon and other elements in the amorphous metal microwire, it is easy to corrode the metal core wire and affect the surface quality and performance of the core wire, especially the glass cladding. There are fluctuations in the elongation direction of the thickness of the cladding layer, and the glass at the thinner cladding layer is corroded earlier, which causes the core wire to be exposed to hydrofluoric acid for a long time and cause over-corrosion