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Titanium alloy metal powder injection molding feed and preparation method thereof

A metal powder, injection molding technology, applied in the field of powder injection molding, to avoid oxidation phenomenon, good fluidity, uniform structure

Active Publication Date: 2021-09-17
深圳市泛海统联精密制造股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the relatively excellent titanium alloy feeding technology is mainly in the hands of several foreign companies, and the domestic titanium alloy feeding technology is still in a blank

Method used

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Embodiment Construction

[0017] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below.

[0018] An embodiment of the present invention provides a titanium alloy metal powder injection molding feed, which comprises:

[0019] Spheroidized titanium alloy (Ti-6Al-4V, TC4) powder 88%, particle size D50=6-8 microns, tap density greater than 2.45g / cm 3 ;

[0020] POM 6%, copolymerization type 9520;

[0021] Polymethylmethacrylate 4%, MFR50;

[0022] Lubricant 1.5%, Carnauba wax 869;

[0023] Antioxidant 0.5%, BASF B215.

[0024] The above-mentioned titanium alloy metal powder injection molding feedstock is prepared by the following method:

[0025] (1) Mixing: take 13.2kg particle size D50=6-8 micron, tap density greater than 2.45g / cm 3 The spheroidized titanium alloy (TC4) powder is added into the mixing chamber of the mixing and granulating machine, the temperature...

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Abstract

The invention discloses a titanium alloy metal powder injection molding feed and a preparation method thereof. The feed comprises the following components in percentages by mass: 88% of spheroidized titanium alloy powder, 6% of polyformaldehyde, 4% of polymethyl methacrylate, 1.5% of a lubricant and 0.5% of an antioxidant. The titanium alloy feed disclosed by the invention has good fluidity, a binder in the feed can be rapidly removed while good fluidity and injection shape are ensured, the oxidation phenomenon of the powder in the feed during long-time degreasing is avoided, the requirements of domestic commercial titanium alloy feeds can be met, the cost is reduced by at least 30% compared with that of a BASF feed, and the blank of a domestic titanium alloy feeding technology is filled.

Description

technical field [0001] The invention relates to the technical field of powder injection molding, in particular to a titanium alloy metal powder injection molding feedstock and a preparation method thereof. Background technique [0002] Titanium alloy has the advantages of lower density than stainless steel, good biocompatibility, excellent corrosion resistance, good wear resistance and high specific strength, and has gradually become one of the metal materials favored by consumer electronics. At present, many products including bracelets, smart watches, hearing aids, etc. have begun to use titanium alloys to prepare shells and key components. However, due to the low thermal conductivity and obvious work hardening phenomenon of titanium alloys, the conventional machining methods are difficult to process, low in efficiency, and the related processing equipment is expensive. In addition, the products on the market have complex shapes, many irregular surfaces, and some even hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/22B22F3/10
CPCB22F3/225B22F3/1025
Inventor 张新房侯春伟杨虎
Owner 深圳市泛海统联精密制造股份有限公司
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