Powder surface treatment agent, titanium or titanium alloy powder injection molding method and product

A technology of powder surface treatment and powder injection molding, which is applied in the field of powder metallurgy, can solve the problems of high cost and difficulty in densification, and achieve the effects of high density, improved operability and low impurity content
CN109909497BActive Publication Date: 2020-07-17UNIV OF SCI & TECH BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Publication Date
2020-07-17

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Abstract

The invention discloses a powder surface treating agent, a titanium or titanium alloy powder injection molding method and a product. The powder surface treating agent comprises the following raw materials of polycarbosilane with the concentration of 0.003-0.05 g / mL, amino silane type coupling agents with the concentration of 0.002-0.01 g / mL, and an organic solvent. The titanium or titanium alloy powder injection molding method comprises the steps that titanium or titanium alloy powder is added into the powder surface treating agent to obtain slurry; and after the slurry and a binder are mixed,pelletizing, injection molding, degreasing, sintering and cooling are sequentially performed to obtain the titanium or titanium alloy product. According to the powder injection molding method, the surface of the HDH titanium or titanium alloy powder is wrapped to form an organic wrapping layer, the mechanical property of the material is improved, and accordingly the technical problems that when high-end titanium and titanium alloy products are prepared by a powder injection molding technology in the prior art, the cost is high and compacting is difficult are solved.
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Description

technical field

[0001] The invention relates to the technical field of powder metallurgy, in particular to a powder surface treatment agent, a titanium or titanium alloy powder injection molding method and a product. Background technique

[0002] Titanium and titanium alloys are widely used in various fields such as aerospace, marine engineering and medical materials due to their low density, high specific strength, excellent corrosion resistance and good biocompatibility. An important indicator of a country's advanced technological development level. However, at present, the preparation of titanium and titanium alloys is mainly through the traditional casting-pressing process, which has problems such as low production efficiency, high production cost, and difficulty in preparing parts with complex shapes, which seriously limits the industrial application level of titanium and titanium alloys. For the problem of preparation and molding, powder injection molding technology h...

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
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