A kind of dispersion strengthened material for platinum-rhodium-based vessel and its preparation method and application

A technology of dispersion strengthening and utensils, applied in the field of precious metal materials, can solve the problems of deformation resistance, erosion resistance and corrosion resistance that cannot meet expected requirements, high production cost of optical glass and glass fiber, and short service life, etc. Erosion resistance and corrosion resistance, excellent high temperature durability and high temperature creep resistance, long service life

Active Publication Date: 2019-09-24
CHONGQING MATERIALS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, at present, utensils made of platinum-rhodium alloy materials commonly used cannot meet the expected requirements in terms of deformation resistance, erosion resistance, and corrosion resistance under high temperature conditions, making the utensils made of these materials easy to creep and deform under high temperature conditions, making the Such materials have a short service life, resulting in high production costs for optical glass and glass fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Platinum: 2394g (79.8% by weight), Rhodium: 600g (20% by weight), Zirconium: 6g (0.20% by weight).

Embodiment 2

[0053] Platinum: 2692.5g (89.75% by weight), rhodium: 300g (10% by weight), zirconium: 6g (0.20% by weight), scandium: 1.5g (0.05% by weight).

[0054] Dispersion-strengthened materials for platinum-rhodium-based vessels were prepared as follows:

[0055] (1) Configure raw materials

[0056] Get each material batching described in embodiment 1-2;

[0057] (2) Vacuum intermediate frequency melting

[0058] Put the prepared raw materials into a vacuum furnace for melting, the melting temperature is 1850~1950°C, and the vacuum degree is 10 -2 -10 -3 Pa, filled with argon protection at the same time, after the raw materials are completely melted, magnetically stirred evenly and kept warm for 2-5min, the obtained liquid metal is quickly cast in a water-cooled copper mold to obtain an ingot;

[0059] (3) Thermal processing

[0060] The obtained ingot was uniformly heat-treated at 1300°C for 60 minutes, hot-forged into a rod shape, uniformly heat-treated at 1200°C for 30 minutes...

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PUM

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Abstract

The invention provides a dispersion-strengthened material for platinum-rhodium-based vessels, which includes a base material and a strengthening phase dispersed in the base material, the base material is a platinum-rhodium alloy, and the strengthening phase elements are zirconium and scandium Any one or several of cerium and cerium, the content of rhodium in each component is > 0 ~ ≤ 20wt%; the content of zirconium is > 0 ~ ≤ 0.4wt%; the content of scandium is 0 ~ 0.4wt%; the content of cerium is 0 ~0.4wt%; platinum is the balance; zirconium+scandium+cerium<0.6wt%, the strengthening phase elements are dispersed in the base material in the form of oxides, forming a dispersion-strengthened material. The dispersion-strengthened material used for platinum-rhodium-based vessels provided by the invention has good erosion resistance, corrosion resistance and high-temperature creep resistance, and the vessels prepared by using this material have a long service life and can effectively reduce such as optical glass and glass fiber. production costs in industrial fields.

Description

technical field [0001] The invention relates to the field of precious metal materials, in particular to a dispersion-strengthened material for platinum-rhodium-based vessels and its preparation method and application. Background technique [0002] In the production process of optical glass, glass fiber and other industrial fields, it needs to be smelted and formed in platinum-rhodium alloy vessels. Due to the harsh working conditions, the material of the vessel is required to have strong deformation resistance, erosion resistance and corrosion resistance under high temperature conditions, so as to ensure the service life of the alloy vessel, reduce the loss of platinum-rhodium alloy, and achieve the purpose of reducing production costs. [0003] However, utensils made of platinum-rhodium alloy materials commonly used at present cannot meet the expected requirements in terms of deformation resistance, erosion resistance, and corrosion resistance under high temperature conditi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C5/04C22C32/00C22C1/05B22F1/00B22F3/17B22F3/18
CPCC22C1/05C22C5/04C22C32/0021B22F3/17B22F3/18B22F2998/10B22F2003/175B22F1/145B22F3/10B22F3/02B22F9/082
Inventor 唐会毅万伟建罗维凡吴保安刘庆宾吴强廖兴涛
Owner CHONGQING MATERIALS RES INST
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