Preparation method of titanium alloy plates

A technology for titanium alloys and plates is applied in the field of preparation of titanium alloy plates, which can solve the problems of unsatisfactory comprehensive mechanical ability of titanium-based alloys, complicated processing technology, etc., and achieves advantages of popularization and application, strong process stability, and simple and easy method. Effect

Inactive Publication Date: 2018-07-13
屏效工业技术(苏州)有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a titanium alloy plate to solve the technical problems of complex processing technology and unsatisfactory comprehensive mechanical capabilities of titanium-based alloys in the prior art

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  • Preparation method of titanium alloy plates
  • Preparation method of titanium alloy plates

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[0026] This embodiment provides a method for preparing a titanium alloy plate, which includes the following steps:

[0027] S1. Initial forging of ingot, the initial forging temperature of the two forging passes is 1000°C-1100°C, the deformation in the first pass is 10-60%; the forging temperature in the second pass is 800-900°C, and the total deformation is greater than 60%; Yes, the alloy ingot is forged into a forging billet after peeling off the surface and cutting off the riser, including; open billet forging and two-fire forging, both of which can be forged with two piers and two draws.

[0028] S2. The forging blank is subjected to stress relief and α-phase quenching and tempering heat treatment, and then cooled to room temperature after heat preservation;

[0029] Specifically, the heat treatment temperature is controlled at 400° C. to 650° C., kept for 1 to 2 hours, and cooled to room temperature after the heat preservation.

[0030] Preferably, during the annealing ...

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Abstract

The invention relates to the technical field of titanium alloy preparation, in particular to a preparation method of titanium alloy plates. The preparation method of the titanium alloy plates comprises the following steps that ingot primary forging is performed, specifically, the heating number of forging is two, the primary forging temperature is 1000-1100 DEG C, the deformation amount of the first pass is 10-60%, the forging temperature of secondary heating is 800-900 DEG C, and the total deformation amount is larger than 60%; forged blanks are subjected to distressing and alpha-phase quenched-tempered heat treatment, and are cooled to the room temperature after being subjected to heat preservation; surface scale of the forged blanks is removed; hot rolling treatment is conducted, specifically, the hot rolling temperature is 600-900 DEG C, the deformation amount of the first pass is controlled to be 1-10%, the total deformation amount is larger than 50%, and reversing rolling is conducted in the hot rolling treatment process; cold rolling treatment is conducted, specifically, the total deformation amount is 15-25%; and aging treatment is conducted at the temperature of 300-450 DEG C, and heat preservation is conducted for 3.5-6 h. The method is simple, easy to implement and high in process stability, and titanium alloys of different toughness levels are obtained through densifying treatment on ingots and control over technical conditions of rolling treatment and heat treatment.

Description

technical field [0001] The invention relates to the technical field of titanium alloy preparation, in particular to a method for preparing a titanium alloy plate. Background technique [0002] In recent years, the demand for titanium materials in my country has increased rapidly, and China has become the third largest consumer of titanium products after the United States and Europe. According to relevant statistical data analysis of the current application situation of the entire titanium and titanium alloy plate and strip market, the largest user is the petrochemical industry, accounting for about 60% of the total consumption of titanium plate and strip, and the others are in the aerospace field, accounting for about 15%. , the sporting goods industry accounted for 6%, seawater desalination and nuclear power fields accounted for 5%, ships and marine engineering equipment accounted for 5%, and other fields accounted for about 9%. [0003] Titanium and titanium-based alloys ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/18C22C1/03C22C14/00B21C37/02
CPCC22F1/183B21C37/02C22C1/03C22C14/00
Inventor 马凤华
Owner 屏效工业技术(苏州)有限公司
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