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A kind of preparation method of aerospace titanium alloy

A titanium alloy, aviation technology, applied in the direction of metal material coating process, coating, liquid chemical plating, etc., can solve the problem of easy oxidation of the surface, and achieve the effect of good stability

Active Publication Date: 2018-09-25
海门市创豪工业设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Titanium alloy is a new type of structural material with the characteristics of light weight and high specific strength. Ti6Al4V (TC4) in titanium alloy is the main material in the aviation industry, but its surface is easy to oxidize and its hardness is less than 600HV.

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  • A kind of preparation method of aerospace titanium alloy
  • A kind of preparation method of aerospace titanium alloy
  • A kind of preparation method of aerospace titanium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing an aerospace titanium alloy, comprising the following steps:

[0018] a. Cleaning steps of titanium alloy:

[0019] The cleaning step of the titanium alloy includes the following steps in sequence: a sanding step, a degreasing step, a pickling step, and an activation step.

[0020] The degreasing step is to clean the Ti6Al4V (TC4) titanium alloy polished with sandpaper by ultrasonic wave, the ultrasonic frequency is 50KHz, and clean for 30 minutes.

[0021] b. Electroless plating step of titanium alloy.

[0022] The electroless plating is Ni-P-Si-C composite electroless plating, which is to put the cleaned titanium alloy into the composite plating solution for electroless plating. The conditions of electroless plating are: the plating temperature is 80°C, and the plating temperature is adjusted with ammonia water. The pH of the solution is 6.5-7, the stirring speed is 10 rpm, and the loading capacity of the plating solution is 0.8dm 2 / L, the p...

Embodiment 2

[0026] A method for preparing an aerospace titanium alloy, comprising the following steps:

[0027] a. Cleaning steps of titanium alloy:

[0028] The cleaning step of the titanium alloy includes the following steps in sequence: a sanding step, a degreasing step, a pickling step, and an activation step.

[0029] The degreasing step is to clean the polished Ti6Al4V (TC4) titanium alloy with sandpaper by ultrasonic wave, the ultrasonic frequency is 60KHz, and clean for 20 minutes.

[0030] b. Electroless plating step of titanium alloy.

[0031] The electroless plating is Ni-P-Si-C composite electroless plating, which is to put the cleaned titanium alloy into the composite plating solution for electroless plating. The conditions of electroless plating are: the plating temperature is 85°C, and the plating temperature is adjusted with ammonia water. The pH of the solution is 6.8-7.2, the stirring speed is 15 rpm, and the loading capacity of the plating solution is 1.2dm 2 / L, the...

Embodiment 3

[0035] A method for preparing an aerospace titanium alloy, comprising the following steps:

[0036] a. Cleaning steps of titanium alloy:

[0037] The cleaning step of the titanium alloy includes the following steps in sequence: a sanding step, a degreasing step, a pickling step, and an activation step.

[0038] The degreasing step is to clean the Ti6Al4V (TC4) titanium alloy polished with sandpaper by ultrasonic wave, the ultrasonic frequency is 70KHz, and clean for 10 minutes.

[0039] b. Electroless plating step of titanium alloy.

[0040] The electroless plating is Ni-P-Si-C composite electroless plating, that is, put the cleaned titanium alloy into the composite plating solution for electroless plating. The conditions of electroless plating are: the plating temperature is 90°C, and the plating temperature is adjusted with ammonia water. The pH of the solution is 7.2-7.5, the stirring speed is 20 rpm, and the loading capacity of the plating solution is 1.5dm 2 / L, the pl...

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Abstract

The invention discloses a manufacturing method for aero titanium alloys. The manufacturing method includes the following steps that a, titanium alloys are washed; and b, chemical plating of the titanium alloys is carried out, wherein chemical plating is Ni-P-Si-C composite chemical plating, the washed titanium alloys are placed into a composite plating solution to be subject to chemical plating, and conditions of chemical plating include that the plating applying temperature is 80 DEG C to 90 DEG C, PH is 6.5 to 7.5, the stirring speed is 10 turns per minute to 20 turns per minute, the plating solution loading capacity is 0.8 dm<2> / L to 1.5 dm<2> / L, and the plating applying time is 0.5 hour to 1 hour. Compared with the prior art, by selecting a stabilization agent, the titanium alloys obtained after chemical plating are characterized in that the phosphorus content is 3.33% to 3.35%, the hardness is 780 HV to 820 HV, the friction coefficient is 0.6 to 0.7, the plating solution stability is good, and the service life of the prepared plating solution is 1 hour to 1.5 hours.

Description

technical field [0001] The invention belongs to an alloy preparation method, in particular to a titanium alloy preparation method. Background technique [0002] Titanium alloy is a new type of structural material with the characteristics of light weight and high specific strength. Ti6Al4V (TC4) in titanium alloy is the main material in the aviation industry, but its surface is easy to oxidize and its hardness is less than 600HV. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for preparing a titanium alloy with a hardness greater than 750HV. [0004] The technical scheme for solving technical problems of the present invention is: a kind of preparation method of aerospace titanium alloy, comprises the following steps: [0005] a, the cleaning step of the titanium alloy; b, the electroless plating step of the titanium alloy. [0006] The electroless plating is Ni-P-Si-C composite electroless plating, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/36
CPCC23C18/36
Inventor 吴长应
Owner 海门市创豪工业设计有限公司