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A preparation method for in-situ synthesis of nano-oxide particle dispersion strengthened platinum-based alloy material

A particle dispersion strengthening, nano-oxide technology, applied in the field of precious metal materials, can solve the problems of affecting the overall performance of materials, low production efficiency, long process flow, etc.

Active Publication Date: 2021-10-15
CHONGQING POLYCOMP INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the above two processes, the thermomechanical laminated composite method has a long process flow, a long time for oxidation treatment in the sheet, is time-consuming and laborious, and has low production efficiency; moreover, it is easy to cause material pollution, inclusions, and bubbles during the laminated composite process, which will affect the quality of the material. overall performance
The powder metallurgy process is also long, although the internal oxidation treatment time of powder is relatively short compared to thin slices; but the powder making mainly includes spray internal oxidation and spark erosion method, the equipment is expensive, the powder yield is low, and the production efficiency is relatively low
Therefore, above-mentioned existing method also has the deficiencies such as long technical process, low production efficiency, yield rate low etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] The present invention provides a preparation method of in situ synthesis of nanodexide particles to dispersion to the platinum-based alloy material, including the following steps:

[0047] a) Smelting the platinum-based material with the active element to obtain alloy melt;

[0048] b) Atomization of the alloy melt to obtain alloy powder;

[0049] c) The alloy powder is sintered in situ, resulting in a sintered body;

[0050] d) Reproduction of the sintered body and hot forged to obtain a gold ingot.

[0051] The present invention first melting the platinum-based material with the active element, then performs atomizing powder, resulting in alloy powder, and then in situ oxide, press molding and hot forging to obtain a gold ingot material. The present invention employs the means of spray powder means, and subsequent processing processes, and subsequent processing processes by a certain smelting process (including a vacuum degree, the active element is added), and the subseq...

Embodiment 1

[0086] Preparation of nano Zro 2 Particles Dispersion Strengthen Pure Platinum

[0087] S1, component design: the matrix material is made of pure PT, the form is a sponge-shaped platinum powder; the active element is produced by the iodinated method (purity ≥99.5%), the Zr slice width is 10 mm, and the thickness is 1 mm.

[0088] S2, weighing ingredients: 10 kg of bonnial platinum, 40 g of zirconium zirconium (i.e., 0.4% addition amount is added).

[0089] S3, vacuum induction smelting: Put the sponial platinum and zirconium sheets in the zirconia crucible and the secondary feed apparatus, activate the induction heating melted bonds (temperature of 1800 ° C), after platinum is all melted, the furnace is evacuated, After the vacuum reaches 10Pa; open the argon valve to charge the argon to the furnace body, to the inner pressure of 6 × 10 4 When PA, the argon valve is turned off, and the furnace is evacuated again. After the vacuum reaches 10Pa, it is again charged into the furnace ...

Embodiment 2

[0100] Preparation of nano Zro 2 + Y 2 O 3 Particles Dispersion Strengthened Platinum Hollow Alloy

[0101] S1, component design: the matrix material is a platinum rhodium alloy, wherein the amount of ruthenium is 10% by weight; the purity of sponal platinum and ruthenium powder is ≥99.95%. The active element is made of zirconium and mononite, and the purity is ≥99.5%; the total amount of the active element is 0.3%, wherein the amount of zirconium is 0.2%, and the amount of monophyte is 0.1%.

[0102] S2, weighing ingredients: 9.9 kg of bonnial platinum, 0.1 kg of ruthenium powder; the total amount of the active element is 0.3%, wherein the zirconium zirconium is 20 g, and the monopolium is 10 g.

[0103] S3, vacuum induction smelting: Place the sponge platinum and ruthenium powder in the zirconia crucible, and the active element component is placed in the secondary feeding device, and the induction heating melted sponge platinum and ruthenium powder (temperature is 1950 ° C), whe...

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Abstract

The invention provides a preparation method for in-situ synthesis of nano oxide particle dispersion strengthened platinum-based alloy material. In the invention, the platinum-based material and the active element are heated and melted firstly, then atomized and pulverized to obtain the alloy powder, and then in-situ oxidation sintering, compression molding and hot forging are carried out to obtain the gold ingot material. The present invention adopts a certain smelting process (including vacuum degree, smelting time after the addition of active elements, etc.), adopts atomization pulverization means, and subsequent processing technology, while ensuring the mechanical properties and high temperature creep resistance of the product. On the basis of this, the technological process is greatly simplified and the production efficiency is improved.

Description

Technical field [0001] The present invention relates to the technical field of noble metal materials, and more particularly to a method of preparing an inotitioned nano-oxide particles dispersion to the platinum-based alloy material. Background technique [0002] Since platinum and its alloy materials have a higher melting point, good anti-high temperature oxidation resistance and chemical stability, high resistance of glass liquid, good ductility, weldability, and thermoelectric properties, etc. And glass fiber industry. However, due to the use of platinum or platinum alloy materials in the molten glass fluid in 1100 to 1400 ° C, the anti-high temperature creep properties are relatively weak, and the anti-high temperature creep properties of platinum or platinum alloy materials are improved, and ZrO is generally used in the industry. 2 Y 2 O 3 Options to strengthen the platinum alloy material and processed to prepare a variety of finished products. [0003] In the prior disclose...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/10C22C1/04C22C5/04C22F1/14
CPCC22C1/1078C22C5/04C22F1/14
Inventor 杨宗伦刘伟廷蒋朝军尹伟周冬运
Owner CHONGQING POLYCOMP INT
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