Wide thick titanium alloy plate rolling method

A titanium alloy and wide-width technology, applied in metal rolling, metal rolling, manufacturing tools, etc., can solve the problems of performance deterioration, high resistance to deformation, and coarse material structure, so as to reduce production costs, improve production efficiency, The effect of excellent mechanical properties
CN104874604AInactive Publication Date: 2015-09-02BAOJI TITANIUM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BAOJI TITANIUM IND CO LTD
Publication Date
2015-09-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a wide thick titanium alloy plate rolling method. The wide thick titanium alloy plate rolling method comprises the following steps: 1) placing a wide thick titanium alloy plate blank in a heating furnace, controlling heating temperature to be 10-50DEG C below an alpha plus beta / beta phase transformation point and preserving heat for 150-600min; 2) feeding the heated plate blank obtained in step 1 into a rolling mill to perform unidirectional rolling, keeping rolling deformation to be 40-75 percent and keeping final rolling temperature to be no less than 200DEG C below the alpha plus beta / beta phase transformation point to obtain a finished thick titanium alloy plate; 3) cooling the finished plate obtained in step 2 to be below 300DEG C by adopting a quick cooling method; 4) performing solid solution treatment to the finished plate after being quickly cooled, wherein the solid solution treatment temperature is controlled to be within a range of 890-970DEG C and the heat preserving time is controlled to be 1-3h. The wide thick titanium alloy plate rolling method thoroughly solves the realistic problems that the rolling tonnage of the wide thick TC4 ELI titanium alloy plate is high and the deformation resistance is large, realizes the industrial production of the wide titanium alloy plates, reduces the production cost and improves the production efficiency.
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Description

technical field

[0001] The invention relates to the field of titanium alloy processing, in particular to a method for rolling thick titanium alloy plates with a wide width. Background technique

[0002] Due to its low density and high specific strength, titanium alloys are widely used in aviation, aerospace, ships and other fields. Due to the high yield strength and low elastic modulus of titanium alloy, the deformation resistance and high resilience of the sheet metal during processing are increased, and the processing difficulty is increased.

[0003] With the increasing application of titanium alloys in the fields of aviation, aerospace, and military industry, the material design requires wider and wider widths and higher requirements for the uniformity of the material structure. At present, the width of the TC4 ELI plate has exceeded 3000mm. Increase, processing deformation resistance increases accordingly, the existing technology is to use wide rolling mill for hot rol...

Claims

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