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Method for preparing beta titanium alloy strip coil

A beta titanium alloy, coil technology, applied in metal rolling, metal rolling, metal processing equipment and other directions, can solve the problems of surface cracks, material plasticity deterioration, etc., achieve effective control of the structure and inhibit the precipitation of harmful phases. Effect

Active Publication Date: 2020-07-31
湖南湘投金天钛金属股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The iron and steel industry uses coal gas for heating, and various waste gases will be emitted after gas combustion. β-titanium alloy is particularly easy to absorb gas, especially hydrogen. After the gas is absorbed, the plasticity of the material will deteriorate, and surface cracks and defects will form during rolling.

Method used

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  • Method for preparing beta titanium alloy strip coil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This example provides a kind of preparation method of β titanium alloy coil, comprises the following steps:

[0030] S1: attaching the pure titanium sheet to the upper and lower surfaces of the β-titanium alloy slab to obtain a β-titanium alloy prefabricated slab;

[0031] S2: performing heating and heat preservation treatment on the β titanium alloy prefabricated slab obtained in step S1;

[0032] S3: rolling the β-titanium alloy prefabricated slab processed in step S2 to the target thickness, opening the laminar flow cooling device at the outlet of the hot rolling end stand, and forcing the finished coil to cool after the strip head bites in, Coiling starts at the coiling temperature until the whole roll is rolled off the line, and the continuous hot rolling includes rough rolling and finish rolling.

[0033] Before step S1, the surface of the β titanium alloy slab is cleaned and polished.

[0034] The pure titanium sheet in step S1 includes TA1 pure titanium sheet ...

Embodiment 2

[0040] In this example, the β-titanium alloy coil A was prepared by the preparation method of Example 1. Concrete steps and process parameters are as follows:

[0041] This example provides a kind of preparation method of β titanium alloy coil, comprises the following steps:

[0042] S1: attaching the pure titanium sheet to the upper and lower surfaces of the β-titanium alloy slab to obtain a β-titanium alloy prefabricated slab;

[0043] S2: performing heating and heat preservation treatment on the β titanium alloy prefabricated slab obtained in step S1;

[0044] S3: rolling the β-titanium alloy prefabricated slab processed in step S2 to the target thickness, opening the laminar flow cooling device at the outlet of the hot rolling end stand, and forcing the finished coil to cool after the strip head bites in, Coiling starts at the coiling temperature until the whole roll is rolled off the line, and the continuous hot rolling includes rough rolling and finish rolling.

[004...

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Abstract

The embodiment of the invention provides a method for preparing a beta titanium alloy strip coil. According to the preparation method, the beta titanium alloy strip coil can be produced only with thehelp of existing iron and steel industry equipment, and no extra production line equipment is required. A TA1 pure titanium plate and a TA2 pure titanium plate are attached to the upper surface and the lower surface of a beta titanium alloy plate blank, the pure titanium plates have a lower inspiration inclination property in the using process of the iron and steel industry equipment, the thicknesses of the pure titanium plates are small, the pure titanium plates can be removed in a surface treatment mode ultimately, and the problems that when the iron and steel industry equipment is used forproduction, material plasticity of beta titanium alloy is deteriorated after inspiration, and surface cracks and defects can be formed in the rolling process are effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of titanium coil production, and in particular relates to a method for preparing a beta titanium alloy coil. Background technique [0002] As a metal material, titanium has the advantages of high specific strength, strong corrosion resistance, good biocompatibility and non-magnetic properties. Titanium and alloy strips are mainly used in high-tech fields such as large civil aviation airliners, military aircraft, aerospace vehicles, nuclear submarines, nuclear power plants and seawater desalination. At present, titanium strip is a product that uses high-quality sponge titanium as a raw material, produced in coils and supplied in coils. Titanium strip products include heat exchanger materials, condenser materials, composite plate materials, welded pipe materials and decorative materials, etc. . With the rapid development of related industries, the market demand for titanium and alloy strips has increased sig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B3/00B21B15/00B21B37/76B21B45/02C22F1/18
CPCB21B3/00B21B15/00B21B37/76B21B45/0203C22F1/183Y02P70/10
Inventor 刘正乔涂爱东陈彦辉孔玢蒋孟玲
Owner 湖南湘投金天钛金属股份有限公司
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