High-strength titanium alloy end socket and preparation method thereof

Abstract

The invention provides a high-strength titanium alloy end socket and a preparation method thereof. The preparation method comprises the following steps of 1, preparing a titanium alloy plate blank; 2, preparing a titanium alloy end socket material plate; 3, wrapping the titanium alloy end socket material plate with an upper steel plate and a lower steel plate, and conducting vacuumizing; 4, preparing a titanium alloy end socket semi-finished product; and 5, obtaining the finished high-strength titanium alloy end socket with the target size. The finished product obtained through the method is good in structure uniformity and excellent in performance, the safety and reliability of equipment under the extreme working condition are guaranteed while the requirements for high strength and corrosion resistance of a pressure-resistant shell are met, and the defects that a titanium alloy end socket is insufficient in strength and poor in surface quality in the forming process are overcome.

Description

technical field [0001] The invention relates to the technical field of titanium alloy processing, in particular to a high-strength titanium alloy head and a preparation method thereof. Background technique [0002] Titanium and titanium alloy materials are widely used in the field of marine engineering because of their high strength, high corrosion resistance, and light weight. In recent years, the shallow sea has gradually developed into the deep sea, and a series of important achievements have been made in the exploration and development of deep sea resources. However, the special environment of the deep sea has put forward special requirements for the pressure-resistant materials of deep sea equipment. The pressure-resistant materials of deep-sea equipment must have high yield strength while having corrosion resistance, so that deep-sea equipment can withstand the static pressure generated by its working depth in the deep sea and the pressure caused by multiple surfacing ...

AI Technical Summary

Problems solved by technology

[0004] The titanium alloy heads prepared by the above two schemes do not indicate the strength of the finished titanium alloy heads, and cannot guarantee the safety and reliability of the titanium alloy heads under extreme working conditions.

In addition, due to the characteristics of high strength, poor plasticity, and high-temperature oxidation of high-strength titanium alloys, the existing titanium alloy head preparation process tends to form a brittle oxide layer on the surface during the heating process of the head, which makes it appear during the stamping process. The problem of cracking and continuous crack expansion; in the process of forming the head, it is easy to cause the deformation resistance to increase due to the large amount of deformation and the sharp drop in temperature, resulting in surface quality problems such as cracking and wrinkling of the head

[0005] In summary, there is an urgent need for a high-strength titanium alloy head and its preparation method to solve the insufficient strength of the titanium alloy head in the prior art and the surface quality problems that occur during the forming process