Preparation method of dispersed strengthened platinum rhodium and platinum composite material

A technology of dispersion strengthening and composite materials, which is applied in the field of metal materials to achieve the effect of high toughness, prevention of expansion and loss of design.

Active Publication Date: 2013-02-20
英特派铂业股份有限公司
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

In actual process production, the toughness of dispersion-strengthened platinum-rhodium materials must meet the needs of p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] 1 Preparation of dispersion strengthened platinum rhodium:

[0025] 1-1 Ingredients: 0.01%~0.6% of dispersant, 0.01%~30% of rhodium powder, and the rest are platinum ingots;

[0026] 1-2 Vacuum smelting: Put the dispersion strengthener, rhodium powder and platinum ingot prepared in step 1-1 in a vacuum induction furnace for smelting, the vacuum degree is less than 20Pa, the temperature is 1900-2200℃, and the melting time is 1~ 2 hours, get liquid alloy;

[0027] 1-3 Casting sheet: The liquid alloy obtained in step 1-2 is cast into an ingot in a mold, the casting temperature is 1950-2250℃, and the ingot is rolled on a rolling mill to a thickness of 0.1-0.3mm and a width of 20~150mm alloy sheet;

[0028] 1-4 Oxidation treatment: After cutting the alloy sheet obtained in step 1-3 into an alloy sheet with a length of 20-150mm, then oxidizing it at 1000-1300°C for 80-120 hours to obtain a dispersion-strengthened platinum rhodium sheet;

[0029] 2 Preparation of ord...

Example Embodiment

[0039] Example 2

[0040] Stack 100 dispersion-strengthened platinum rhodium sheets and 1500 ordinary platinum sheets according to a certain mass distribution ratio, and the stacking sequence is: ordinary platinum sheets, dispersion-strengthened platinum rhodium sheets, and ordinary platinum sheets. The mass ratios are: 46.875%, 6.25%, 46.875%, and the process flow is the same as that described in Example 1.

[0041] Sampling the obtained finished product, the sampling specifications are as follows: length 100mm, width 10mm, thickness 1mm. And do tensile test at 1400℃. Under the same stress, the high temperature elongation of the dispersion strengthened platinum rhodium and platinum composite material is 18.7 times that of ordinary dispersion strengthened platinum rhodium, and the high temperature life is 1.5 times that of ordinary platinum rhodium.

Example Embodiment

[0042] Example 3

[0043] Stack 500 dispersion-strengthened platinum rhodium sheets and 1500 ordinary platinum sheets according to a certain mass distribution ratio, and the stacking order is: ordinary platinum sheets, dispersion-strengthened platinum rhodium sheets, ordinary platinum sheets, dispersion-strengthened platinum rhodium sheets, ordinary Platinum tablets. The mass ratios are: 25%, 12.5%, 25%, 12.5%, 25%, and the process flow is the same as that described in Example 1.

[0044] Sampling the obtained finished product, the sampling specifications are as follows: length 100mm, width 10mm, thickness 1mm. And do tensile test at 1400℃. Under the same stress, the high temperature elongation of the dispersion strengthened platinum rhodium and platinum composite material is 17.6 times that of ordinary dispersion strengthened platinum rhodium, and the high temperature life is 2.7 times that of ordinary platinum rhodium.

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Abstract

The invention relates to a preparation method of a dispersed strengthened platinum rhodium and platinum composite material and belongs to the technical field of metal materials. The method composites the dispersed strengthened platinum rhodium and the platinum to obtain a novel dispersed strengthened platinum rhodium material. A dispersed strengthened platinum rhodium and platinum composite material product is obtained by burdening, high frequency smelting, vacuum smelting, casted rolling piece cutting, oxidation processing, composite machining, hot forging, cogging and rolling. The preparation method of the dispersed strengthened platinum rhodium and platinum composite material effectively prevents expansion of crack defects under the condition of guaranteeing strength and toughness of the dispersed strengthened platinum rhodium material, and can enable elongation percentage of the platinum rhodium material to be controlled.

Description

technical field [0001] The invention relates to a method for preparing a dispersion-strengthened platinum-rhodium-platinum composite material. The novel dispersion-strengthened platinum-rhodium material is obtained by compounding the dispersion-strengthened platinum-rhodium and platinum, and belongs to the technical field of metal materials. Background technique [0002] Platinum and platinum-rhodium alloys are widely used in the glass industry. Dispersion-strengthened platinum-rhodium material is a new type of structural material with metal platinum as the matrix and metal zirconium, yttrium, thorium, beryllium and other oxides as the dispersion-strengthened phase. It has good oxidation resistance and corrosion resistance of molten glass. In actual process production, the toughness of dispersion-strengthened platinum-rhodium materials must meet the needs of process production, while ordinary dispersion-strengthened platinum-rhodium materials cannot change their toughness a...

Claims

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Application Information

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IPC IPC(8): C22C5/04C22F1/14B23P15/00
Inventor 吴显忠蒋正荣尹克勤尹俊
Owner 英特派铂业股份有限公司
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