Stud welding method of amorphous alloy

Abstract

The invention relates to the technical field of welding of amorphous alloys, and particularly relates to a stud welding method of an amorphous alloy. The stud welding method provided by the invention comprises the steps of welding a base metal, namely an amorphous alloy, and a weld assembly, namely a stud, melting a contact part of the stud and the amorphous alloy by an electric arc, and with a TTT map as a standard, welding the stud and the amorphous alloy under the condition that a crystallization reaction is not generated, wherein the stud is a stainless steel stud or contains one or more of elements of the amorphous alloy. The welding method provided by the invention solves the problem that an amorphous alloy is hard to tap, the joint of the amorphous alloy and the stud is realized effectively, the strength of the welding joint of the amorphous alloy and the stud is very high, and the welded amorphous alloy still keeps an amorphous structure; the welding method has the advantages that the welding time is short, the welding speed is high, and the production efficiency is high.

Description

Technical field [0001] The invention involves the field of welding technology of amorphous alloys, especially a thread welding method involving an amorphous alloy. Background technique [0002] Due to the excellent characteristics of intensity, hardness, toughness, wear resistance, corrosion resistance, soft magnetism and superconductivity, it has been widely used in electronics, machinery, chemical industry and other fields.However, although the amorphous alloy has the excellent characteristics of the above, there are shortcomings of difficulty processing and difficult welding, which greatly limits its application scope.Therefore, the welding of amorphous alloys has become a technical difficulty of an amorphous alloy application expansion. [0003] Due to the unreasonable welding method, the existing technologies often occur in non -crystal alloy crystallization due to unreasonable welding methods, resulting in in -depth promotion and application of amorphous alloys. [0004] In...

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Problems solved by technology

[0003] In the prior art, when welding amorphous alloys, due to the unreasonable welding method, the crystallization of amorphous alloys often occurs, which makes it difficult to promote the application of amorphous alloys in depth

[0004] CN103635270A discloses that the interface is riveted with pressure after the amorphous alloy is heated to the supercooled liquid phase region into a viscous state. This patent only mechanically joins the amorphous alloy instead of welding, so the strength of the joint is relatively Difference

That is, in the prior art, after the amorphous alloy is joined to other workpieces, the strength of the joint is often relatively poor

[0005] Because it is difficult to realize the tapping process on amorphous alloy materials, it is difficult to realize the structure of bolts and nuts on amorphous alloy products. Moreover, if adhesives are used to bond bolts and nuts to amorphous products, the connection strength does not meet the needs of production

[0006] In addition, in the prior art, the bonding of amorphous alloys and other workpieces often requires processes such as drilling, stamping, threading, bonding, riveting, screwing, and finishing, which not only leads to cumbersome production processes, low production efficiency, and low production efficiency. High cost and often leaks due to drilling

In addition, it is also easy to cause a large degree of deformation of the amorphous alloy, and the strength of the joint is poor

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