Preparation method of titanium alloy foil

Abstract

The invention provides a preparation method of a titanium alloy foil, comprising the following steps of: 1, carrying out surface oxidization treatment on a titanium alloy plate; 2, overlapping the titanium alloy plate which is subjected to the surface oxidization treatment between two sheets of steel plates; 3, laminating edges of the steel plates and carrying out electric arc welding on a press fit seam, reserving a ventilating opening at any one end and carrying out argon arc welding on the ventilating opening to obtain an overlapped and rolled bag; 4, heating the overlapped and rolled bag; 5, carrying out hot rolling by a four-roller rolling machine; and 6, removing the steel plates and carrying out acid washing and surface flattening treatment to obtain the titanium alloy foil with the thickness of 0.05-0.3 mm. The titanium alloy foil is prepared by using a covering, overlapping and rolling process so that the requirement on rolling equipment is greatly reduced; and a twenty-roller rolling machine which is complicated and expensive is not needed and the titanium alloy foil can be prepared by using a regular four-roller reversible hot rolling machine. The titanium alloy foil prepared by the preparation method disclosed by the invention has the advantages of controllable thickness precision and good surface quality, and is capable of realizing large-scale industrial production.

Description

technical field

[0001] The invention belongs to the technical field of titanium alloy material preparation, and in particular relates to a preparation method of titanium alloy foil. Background technique

[0002] Foil is an important product form of titanium alloy and has a wide range of applications. High-strength titanium alloys such as TC4, TB8, and TB5 have high deformation resistance and good cold formability, and are suitable for preparing cold-rolled sheets. However, during the preparation process from cold-rolled sheet to foil, the alloy has high resistance to deformation during processing, and is prone to work hardening and aging effects. It requires high equipment and operation, and generally requires a 20-roll foil rolling mill for processing, so TC4, TB8, There are great difficulties in the preparation of foils of high-strength titanium alloys such as TB5. Contents of the invention

[0003] The technical problem to be solved by the present invention is to prov...