Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for preparing 6AI4V titanium alloy powder by using mechanical alloying heat treatment method

A technology of mechanical alloying and heat treatment, applied in the field of powder metallurgy, can solve the problems of high impurity content and high production cost

Inactive Publication Date: 2013-01-02
郑新科
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a new process for preparing 6Al4V titanium alloy powder by a new mechanical alloying heat treatment method, so as to overcome the shortcomings of the existing method, which are high in production cost and high in impurity content, and are difficult to popularize and use.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for preparing 6AI4V titanium alloy powder by using mechanical alloying heat treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The accompanying drawing shows the production process of the 6Al4V titanium alloy powder prepared by the new mechanical alloying method. In the hydrogenated titanium powder, metal aluminum and vanadium are added in proportion to the weight of the 6Al4V titanium alloy, that is, 6% Al, 4% V, and the balance For the ratio mixing of titanium, pre-alloying is carried out with a high-energy ball mill under vacuum conditions or under the protection of argon, dehydrogenation treatment is carried out under heating and vacuum conditions, and heat treatment is carried out at the same time to achieve alloying. Titanium hydride powder is made of sponge titanium at 600°C and 0.2MP pressure to generate titanium hydride, and then make titanium hydride powder according to the required particle size. The high-energy ball mill is a closed type, and it is vacuumed to below 10Pa or argon is added to protect the material for pre-alloying of the material. Pre-alloy powder dehydrogenation heat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a novel process for preparing 6AI4V titanium alloy powder by using a mechanical alloying heat treatment method, comprising the following steps of: mixing aluminum-vanadium alloy powder in titanium hydride powder with different granularities according to a certain proportion; pre-alloying in a high-energy ball grinding mill; dehydrating under certain temperature and vacuum conditions; and carrying out heat treatment under a vacuum condition, wherein a composition phase structure of the powder is subjected to ordered transformation in the heat treatment process of the mechanical alloying powder, that is to say, an unordered titanium alloy solid solution is transformed to an ordered TIAIV intermetallic compound and is transformed into a geometric compound at the same time.

Description

technical field [0001] The invention belongs to the field of powder metallurgy, in particular to a titanium alloy preparation process. Background technique [0002] Powder metallurgy of titanium and titanium alloy powder is the most modern process, which can obtain products with various properties and be used in various fields of national economy. In recent years, people have been vigorously developing the processing technology and production technology of complex-shaped parts used in the aviation and aerospace industries. The most representative is that after many years of domestic and foreign research on titanium alloy powder metallurgy methods and a large number of applications in the aerospace industry and the automotive industry, and the various properties of the prepared parts are better. Another major application of titanium powder metallurgy is to make porous filter materials for various purposes from titanium and its titanium alloy powder, which are used in many in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/30B22F9/04C22C14/00C22C1/04
Inventor 郑新科
Owner 郑新科