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Method of preparing medical high-precision titanium and titanium alloy rod bar

A manufacturing method, titanium alloy technology, applied in the direction of manufacturing tools, heat treatment process control, heat treatment equipment, etc., can solve the problems of not mastering the process technology, great difficulty in popularization, huge investment, etc., and achieve good economic benefits and equipment investment The effect of less and high market competitiveness

Inactive Publication Date: 2008-04-09
宝鸡市英耐特医用钛有限公司
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AI Technical Summary

Problems solved by technology

However, due to the huge investment in equipment and the domestic lack of technology for this method, it is still very difficult to promote it in China.

Method used

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Embodiment Construction

[0016] The specific implementation will be further described in detail below in conjunction with the manufacturing process of medical high-precision pure titanium rods with a diameter tolerance between h9-h8, a diameter of 9.5 mm, and a length of 3 m:

[0017] First, select a pure titanium ingot with a diameter of 360mm and a length of 1.7m, and remove the part that is found to have defects after ultrasonic flaw detection. Next, place the titanium ingot into a resistance furnace and heat it to 980°C to 1000°C for 3.5 hours. It is forged into a mouth of 190*Lmm, polished to remove surface defects such as burrs and cracks, and then cut according to the weight required for the next process. The third step is to place the cut billet in a resistance furnace and heat it to 850°C to 1000°C, hold it for 2 hours, deform and forge it into a billet with a diameter of 60*Lmm, grind the surface to remove surface defects such as cracks, and then heat Rolling, rolling it into a rod with a d...

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Abstract

The invention relates to medical high precision titanium and the manufacture method of a titanium alloy rod with a diameter tolerance level between h9 to h8 and the length between 3 m to 3.5 m without any clearance after being arranged on operating platform. The main steps of the manufacture method comprises blank preparation, cogging and forging, distorting and processing, heat treatment, finishing operation, examination, and final product packaging. The invention greatly decreases the equipment investment, realizes the purposes that the localization and exportation of the medical high precision titanium rod can be utilized rapidly, the monopoly situation of the products in the China market by foreign countries can be broken, the international competition can be participated, the stronger market competence can be formed, and the good economic benefit can be created.

Description

technical field [0001] The invention relates to the field of manufacturing methods of medical high-precision titanium rods, especially high-precision medical titanium rods with a diameter tolerance between h9-h8 and a length ranging from 3m to 3.5m, which are placed on a working platform without gaps. The field of manufacturing methods of titanium alloy rods. Background technique [0002] For medical high-precision titanium and titanium alloy rods with a diameter tolerance between h9-h8 and a length of 3-3.5m, and no gaps are allowed on the working platform, it is currently not possible to mass-produce them in China. The manufacturing method adopted abroad is to use a special coreless lathe for processing titanium and titanium alloys to match other equipment, and use processes such as peeling and straightening to form at one time. However, due to the huge investment in equipment and the lack of technology for this method in China, it is still very difficult to promote it in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P13/00B21J1/06C21D1/26C21D11/00
Inventor 詹文革刘润泽
Owner 宝鸡市英耐特医用钛有限公司
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