A short-process preparation method of ta5 titanium alloy wide plate

A titanium alloy and short-process technology, which is applied in the field of short-process preparation of TA5 titanium alloy wide medium and thick plates, can solve the problems of shortened production process, low production efficiency, long process, etc. The effect of increasing the rate, increasing the processing rate of passes, and shortening the process flow

Active Publication Date: 2021-03-23
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

Moreover, the conventional production method requires a long technical process, a long cycle, and low production efficiency. However, with the acceleration of the production rhythm and the needs of market development, it is urgent to reduce the time cost and shorten the production process. Manufacture the required products of different specifications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The invention provides a short-process preparation method for a TA5 titanium alloy wide medium-thick plate, which specifically includes the following steps:

[0030] A. Grinding the surface of the TA5 titanium alloy slab with a size of 100*1200*2400mm to remove surface defects, and the surface roughness after treatment is not higher than Ra12.5μm;

[0031] B. Brush the slab after the surface treatment in step A with silicate paint as the titanium alloy anti-oxidation coating, and the brushing is uniform and the thickness is uniform;

[0032] C. Place the TA5 titanium alloy slab coated with the coating in step B in a heating furnace, and keep it warm at a temperature of 950°C for 150 minutes, and control the oxidizing atmosphere in the furnace at 3%-5% , close the furnace door as soon as possible after entering the furnace;

[0033] D, the TA5 titanium alloy slab heated in step C is sent into the hot rolling mill for first-fire rolling, and the descaling box and rolling...

Embodiment 2

[0041] The invention provides a short-process preparation method for a TA5 titanium alloy wide medium-thick plate, which specifically includes the following steps:

[0042] A. Grinding the surface of the TA5 titanium alloy slab with a size of 130*1200*2400mm to remove defects such as inclusions, pits, and microcracks on the surface, and the surface roughness after treatment is not higher than Ra12.5μm;

[0043] B. Brush the slab after the surface treatment in step A with silicate paint as the titanium alloy anti-oxidation coating, and the brushing is uniform and the thickness is uniform;

[0044] C. Place the TA5 titanium alloy slab coated with the coating in step B in a heating furnace, and keep it warm at a temperature of 960°C for 195 minutes, and control the oxidizing atmosphere in the furnace at 3%-5% , close the furnace door as soon as possible after entering the furnace;

[0045] D, the TA5 titanium alloy slab heated in step C is sent into the hot rolling mill for firs...

Embodiment 3

[0053] The invention provides a short-process preparation method for a TA5 titanium alloy wide medium-thick plate, which specifically includes the following steps:

[0054] A. Grinding the surface of the TA5 titanium alloy slab with a size of 150*1300*2400mm to remove surface defects, and the surface roughness after treatment is not higher than Ra12.5μm;

[0055] B. Brush the slab after the surface treatment in step A with silicate paint as the titanium alloy anti-oxidation coating, and the brushing is uniform and the thickness is uniform;

[0056] C. Place the TA5 titanium alloy slab coated with the coating in step B in a heating furnace, and keep it warm at a temperature of 960°C for 225 minutes, and control the oxidizing atmosphere in the furnace at 3%-5% , close the furnace door as soon as possible after entering the furnace;

[0057] D, the TA5 titanium alloy slab heated in step C is sent into the hot rolling mill for first-fire rolling, and the descaling box and rolling...

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PUM

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Abstract

The invention provides a TA5 titanium alloy wide moderate-thickness plate short process preparation method. TA5 titanium alloy wide moderate-thickness plates with the uneveness smaller than or equal to 10 mm / m are obtained through the procedures such as blank preparation, heating, broadening, reversing and one-heating-time rolling, hot straightening and finished product surface treatment, the structures and the performance of the plates meet the GJB944 and GB / T3621 requirements, and the dimensions (thickness*width*length) of the titanium alloy wide thick plates are (12 mm-50 mm)*(1500 mm-2500mm)*(6000 mm-12000 mm). A titanium-steel combination production manner is adopted, corollary equipment such as rolling mills with the high capacity in steel mills and a fast-paced production manner are fully utilized, the finished product thickness is rolled through one-heating-number large deformation, in combination with broadening, reversing and rolling, the production efficiency is greatly improved, the yield of the products is greatly increased, the time and production cost is reduced, and the technological process is shortened.

Description

technical field [0001] The invention belongs to the technical field of titanium alloy material processing, and in particular relates to a short-process preparation method of a TA5 titanium alloy wide medium-thick plate. Background technique [0002] Titanium alloy is mainly due to its high specific strength and excellent corrosion resistance, and its density is about half of that of steel and other alloys. It is an ideal choice for metal structural materials for ships. With the development of my country's shipbuilding industry technology and the needs of national defense construction, the demand for titanium materials in the field of ships is increasing. As a medium-strength α-type titanium alloy, TA5 titanium alloy has a nominal composition of Ti-4Al-0.005B. It has excellent welding performance and corrosion resistance, and is a good material for ship structures. [0003] The conventional production method of TA5 titanium alloy wide and thick plates is generally to use rol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C37/02
CPCB21C37/02
Inventor 王雪萌刘正乔涂爱东江彪郭振华龚刚强车玲玲
Owner 湖南湘投金天钛金属股份有限公司
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