Reinforced platinum/rhodium 10-platinum fine thermocouple wire for quick temperature measurement and preparation method thereof

A fast technology for temperature measurement, applied in the field of precious metal materials, can solve the problems of poor control of strength and flatness, affect the control of iron and steel smelting process, and low yield, so as to improve the yield of preparation, increase the tensile strength and Processability and cost reduction effect

Active Publication Date: 2014-07-30
CHONGQING MATERIALS RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the diameter of the fine platinum-rhodium wire used for domestic molten steel temperature measurement is usually , can not measure temperature more quickly, accurately and stably, and affect the

Method used

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  • Reinforced platinum/rhodium 10-platinum fine thermocouple wire for quick temperature measurement and preparation method thereof
  • Reinforced platinum/rhodium 10-platinum fine thermocouple wire for quick temperature measurement and preparation method thereof
  • Reinforced platinum/rhodium 10-platinum fine thermocouple wire for quick temperature measurement and preparation method thereof

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the embodiments, but the present invention is not limited to the scope of the embodiments.

[0034] The proportions of the components of the reinforced platinum rhodium 10-platinum micro-coupling wire material for rapid temperature measurement of Examples 1 to 3 are shown in Table 1

[0035] Table 1 Platinum rhodium 10-platinum thermocouple material composition table

[0036]

[0037]

[0038] Take each of the materials described in Examples 1-3 in Table 1, and prepare the reinforced platinum rhodium 10-platinum fine wire material for rapid temperature measurement according to the following methods:

[0039] (1) High-vacuum intermediate frequency smelting: Put the raw materials of the positive electrode components prepared in step 1 into the high-vacuum intermediate frequency, and the vacuum degree is 1×10 -3 ~1×10 -5 Pa, the smelting temperature is 1850~1900℃, and argon protection is filled at the same ti...

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Abstract

The invention relates to a reinforced platinum/rhodium 10-platinum fine thermocouple wire for quick temperature measurement and a preparation method thereof. The material comprises a positive pole PtRh10 material and a negative pole Pt material, wherein the positive pole PtRh10 material comprises the following components in parts by weight: 89.9-90.1 parts of platinum, 9.9-10.1 parts of rhodium, 0-0.003 part of yttrium, 0-0.003 part of zirconium, and 0-0.003 part of cerium; the negative pole Pt material comprises the following components in parts by weight: 99.9-100 parts of platinum, 0-0.003 part of yttrium, 0-0.003 part of zirconium and 0-0.003 part of cerium; and the yttrium, zirconium and cerium are distributed in the material matrix in a dispersed manner in the form of fine oxide. When the materials are prepared into the platinum/rhodium thermocouple wire, the minimum diameter is phi0.035mm, and the application range is phi0.035-0.07mm. The reinforced platinum/rhodium 10-platinum fine thermocouple wire has the properties of quick, accurate and stable temperature measurement, high reliability, high strength and the like.

Description

Technical field [0001] The invention belongs to the field of precious metal materials, and in particular relates to a reinforced platinum rhodium 10-platinum micro-coupling wire for rapid temperature measurement and a preparation method and a preparation method thereof. Background technique [0002] In the smelting industry, the requirements for measuring the temperature of molten steel are fast, accurate, and stable. Only when the above requirements are met can precise control of the key processes of steel smelting and processing can be achieved. The material used for temperature measurement of molten steel belongs to the rapid consumption type thermocouple material (quick couple material for short). The material is mainly platinum-rhodium series thermocouple microwire. The thermal response time of platinum-rhodium couple wire is inversely proportional to the diameter of the wire. The smaller the diameter, the faster the reaction time. At present, the diameter of the fine plati...

Claims

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Application Information

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IPC IPC(8): C22C5/04B21C1/02C22F1/14
Inventor 唐会毅吴保安刘庆宾汪建胜王云春陈小军罗凤兰陈兴汉
Owner CHONGQING MATERIALS RES INST
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