Dispersion strengthening platinum/rhodium13-platinum thermocouple wires and production method thereof

A technology of dispersion strengthening and platinum thermocouple, which is applied in the direction of directly heat-sensitive electrical/magnetic element thermometers, measuring heat, and using electrical devices, etc. Poor anti-pollution ability and other problems, to achieve the effect of strong anti-pollution and corrosion ability, stable thermoelectric potential, and strong creep resistance

Active Publication Date: 2009-10-21
英特派铂业股份有限公司
View PDF5 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of thermocouple wire can be used under high-temperature oxidation conditions, and the temperature can be measured in the temperature range of 300-1400°C. However, the platinum pole

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: Pt 87.0%, Rh 13.0%.

[0027] Technical performance: the fracture life of ordinary platinum rhodium when subjected to the same stress at high temperature 13 Even wires are equivalent; for each roll of even wires, when the temperature of the reference end is 0°C, the thermal electromotive force measured at different test temperatures meets the requirements of GB / T1598.

Embodiment 2

[0028] Embodiment 2: Pt86.826%, Rh12.974%, Zr0.1%, Y0.1%.

[0029] Technical performance: when subjected to the same stress at high temperature, the fracture life is as long as that of ordinary platinum rhodium 13 About 15 times that of even wire; for each roll of even wire, when the temperature of the reference end is 0°C, the thermal electromotive force measured at different test temperatures meets the requirements of GB / T 1598.

Embodiment 3

[0030] Example 3: Pt 86.652%, Rh 12.948%, Ti 0.2%, Y 0.2%.

[0031] Technical performance: when subjected to the same stress at high temperature, the fracture life is as long as that of ordinary platinum rhodium 13 About 16 times that of even wire; for each roll of even wire, when the temperature of the reference end is 0°C, the thermal electromotive force measured at different test temperatures meets the requirements of GB / T 1598.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses dispersion strengthening platinum/rhodium13-platinum thermocouple wires, comprising a cathode and an anode; the thermocouple wires are characterized in that the anode contain ingredients according to the following weight percentage: 12.87-13% of rhodium; 0-0.5% of zirconium; 0-0.5% of yttrium; 0-0.5% of calcium; 0-0.5% of lanthanum; 0-0.5% of titanium; the excess is platinum; the cathode contains ingredients according to the following weight percentage: 0-0.5% of zirconium; 0-0.5% of yttrium; 0-0.5% of calcium; 0-0.5% of lanthanum; 0-0.5% of titanium; the allowance platinum. The production method of dispersion strengthening platinum/rhodium13-platinum thermocouple wires comprise mixing ingredients, vacuum melting, placing and rolling, oxidizing, combined machining and drawing forming. The dispersion strengthening platinum/rhodium13-platinum thermocouple wires of the invention enjoy long service life, high adaptive temperature, strong contamination resistance and low use cost.

Description

technical field [0001] The invention belongs to the technical field of metal materials, in particular to a dispersion strengthened platinum rhodium 13 -Platinum thermocouple wire and its production method. Background technique [0002] Thermocouple wires are used to make various temperature measuring elements, and are widely used in temperature measurement in various fields such as the steel industry and the glass industry. Platinum rhodium is generally used in large quantities in the prior art 13 - Platinum thermocouple wire with a positive platinum rhodium 13 The nominal composition is rhodium Rh13%, platinum Pt is the balance, and the nominal platinum content of the negative electrode is 100%. This kind of thermocouple wire can be used under high-temperature oxidation conditions, and the temperature can be measured in the temperature range of 300-1400°C. However, the platinum pole grains of this kind of thermocouple wire are easy to coarsen, and the anti-pollution abili...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01K7/02C22C5/04C22C1/02
Inventor 熊雅玲李树屏尹俊
Owner 英特派铂业股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap