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Dispersion-strengthened platinum-rhodium alloy and platinum composite material and preparation method thereof

A technology of dispersion strengthening and composite materials, which is applied in the field of metal materials, can solve problems such as forging and strengthening of platinum vessels, and achieve the effects of low volatility, prolonging life, and saving usage.

Active Publication Date: 2017-11-17
成都光明派特贵金属有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problem that the existing dispersion-strengthened platinum material or the composite material of dispersion-strengthened platinum and platinum is difficult to forge and strengthen platinum vessels, the invention provides a composite material of dispersion-strengthened platinum-rhodium and platinum and a preparation method thereof

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  • Dispersion-strengthened platinum-rhodium alloy and platinum composite material and preparation method thereof
  • Dispersion-strengthened platinum-rhodium alloy and platinum composite material and preparation method thereof

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preparation example Construction

[0043] Concretely, the preparation method of dispersion strengthened platinum-rhodium and platinum composite material comprises the following steps:

[0044] 1. Preparation of dispersion strengthened platinum rhodium powder

[0045] 1.1. Ingredients: by weight percentage, 0.01-0.06% dispersant, 1-30% rhodium, and the rest are platinum materials;

[0046] 1.2. Induction melting: Melting rhodium and platinum materials in an induction melting furnace, controlling the melting temperature to 1800-2100°C and frequency of 3-100KHz, and performing degassing operations, and then casting platinum-rhodium ingots in molds;

[0047] 1.3 Vacuum melting: Fully melt the dispersant and platinum-rhodium ingot under the conditions of vacuum degree <10Pa, temperature 1800-2100°C, frequency 8-100KHz to obtain liquid alloy;

[0048] 1.4. Casting: Cast the liquid alloy obtained in 1.3 under inert gas, and the casting temperature is 1800-2100°C;

[0049] 1.5. Powder making: making the material obta...

Embodiment 1

[0081] In this embodiment, the ratio of platinum powder and dispersion-strengthened platinum-rhodium powder is 1:1. In actual production, the ratio of the two can be as high as 95:5 according to demand.

[0082] 1. Ingredients: dispersion strengthened platinum-rhodium powder: 0.06% dispersant, 10% rhodium, and the balance is platinum ingot with a purity of more than 99.9%; platinum powder: platinum ingot with a purity of more than 99.9%;

[0083] 2. Induction melting: Melting platinum ingots and rhodium in an induction melting furnace at a temperature of 2000°C, frequency of 30KHz, melting time of 2 hours, degassing, and casting platinum-rhodium ingots in molds; The platinum ingot is smelted through an induction melting furnace, the frequency can be selected at 30KHz, the smelting temperature is 2000°C, and the smelting time is 2 hours to obtain platinum liquid metal;

[0084] 3. Vacuum smelting: Put the dispersant and platinum-rhodium ingot into the vacuum smelting furnace fo...

Embodiment 2

[0097] In this embodiment, the ratio of platinum powder to dispersion-strengthened platinum-rhodium powder is 1:4. In actual production, the ratio of the two can be as high as 95:5 according to demand.

[0098] 1. Ingredients: dispersion strengthened platinum-rhodium powder: 0.03% dispersant, 10% rhodium, and the balance is platinum ingot with a purity of more than 99.9%; platinum powder: platinum ingot with a purity of more than 99.9%;

[0099] 2. Induction smelting: Melt platinum ingots and rhodium in an induction melting furnace at a temperature of 1950°C, a frequency of 60KHz, and a smelting time of 1 hour, degassing, and cast platinum-rhodium ingots in molds. The platinum ingot is smelted through an induction melting furnace, the frequency can be selected at 30KHz, the smelting temperature is 1950°C, and the smelting time is 1 hour to obtain platinum liquid metal;

[0100] 3. Vacuum smelting: put the dispersant and platinum-rhodium ingot into the vacuum smelting furnace for...

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Abstract

The invention belongs to the technical field of metal materials, particularly relates to a dispersion-strengthened platinum-rhodium alloy and platinum composite material and a preparation method thereof, and aims at achieving the technical purpose of providing a preparation method for the dispersion-strengthened platinum-rhodium alloy and platinum composite material. The preparation method comprises the following steps that dispersion-strengthened platinum-rhodium alloy and platinum are prepared into powder and spread in a sintering mold, and the composite material is finally obtained through sintering, annealing, hot pressing, sizing hot forging, sizing-free hot forging, surface treating and rolling. The composite material has the calcining property, can calcine a platinum material, a platinum-rhodium alloy material, a dispersion platinum material and a dispersion platinum-rhodium material, and has the good properties such as the high temperature strength, the oxidation resistance and the corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a dispersion-strengthened platinum-rhodium-platinum composite material and a preparation method thereof. That is, a new type of material is obtained by compounding dispersion-strengthened platinum rhodium and platinum. Background technique [0002] Platinum and platinum-rhodium alloys are widely used in the glass industry. Dispersion-strengthened platinum material is a new type of structural material with metal platinum as the matrix and metal oxides such as zirconium, yttrium, thorium, and beryllium as the dispersion-strengthened phase. It has good high-temperature strength, oxidation resistance, and corrosion resistance to molten glass. However, the calcining properties of dispersion-strengthened platinum or dispersion-strengthened platinum-platinum composites prepared by existing methods cannot meet the process requirements, so it is impossible to calcinat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/04C22C32/00C22C1/05B22F3/10B22F3/17B22F3/18
CPCB22F3/1017B22F3/17B22F3/18B22F2003/175B22F2998/10C22C1/05C22C5/04C22C32/001B22F2003/145
Inventor 牟冉冉石映奔张胜明刘明华
Owner 成都光明派特贵金属有限公司
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