Preparation method of platinum-rhodium alloy

A kind of platinum-rhodium alloy, alloy technology

Inactive Publication Date: 2015-03-18
李家波
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its poor processing performance limits its ap

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of platinum-rhodium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The invention provides a preparation method of a platinum-rhodium alloy. The composition of the platinum-rhodium alloy is, in weight percentage: iron≤2.5, sulfur 0.020-0.060, silicon≤0.5, platinum 28.0-34.0, and the balance of rhodium, characterized in that: The preparation method of described platinum-rhodium alloy comprises the following three steps,

[0015] The first step: charging and vacuuming; the second step: after the loaded material is fully opened, control the temperature between 1300 ° C and 1700 ° C, refine, add deoxidizer, and finally add sulfide, so that the platinum-rhodium alloy Sulfur content between 0.050-0.060%;

[0016] The third step: temperature measurement, casting, and the casting time is less than 20 seconds.

[0017] During the smelting process of the platinum-rhodium alloy, the oxygen content in the alloy is guaranteed to be lower than 30ppm.

[0018] The oxygen content in said alloy is preferably below 15 ppm.

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 provides a preparation method of a platinum-rhodium alloy. The platinum-rhodium alloy is prepared from the following components in percentage by weight: less than 2.5% of iron, 0.020-0.060% of sulfur, less than or equal to 0.5% of silicon, 28.0-34.0% of platinum and the balance of rhodium; the preparation method of the platinum-rhodium alloy is characterized by comprising the following three steps: firstly, charging and vacuumizing; secondly, after the charged materials are completely melted, controlling the temperature within the range of 1300-1700 DEG C, refining and adding a deoxidizing agent; and finally, adding a sulfide so that the sulfur content in the platinum-rhodium alloy is within the range of 0.050-0.060%. The preparation method of the platinum-rhodium alloy has the advantages that the properties of the platinum-rhodium alloy are improved, and when the platinum-rhodium alloy is applied to the field of temperature sensors as the basic material of a thermocouple, the platinum-rhodium alloy is stable in properties and more advantageous to the accuracy of temperature detection, and therefore, the measurement accuracy can be improved.

Description

technical field [0001] The invention relates to a preparation process of a platinum-rhodium alloy material, and in particular provides a preparation method of a platinum-rhodium alloy. Background technique [0002] According to different elements, platinum and rhodium are widely used in petroleum, petrochemical and other fields. However, its poor processing performance limits its application, and there are problems that should be solved. Contents of the invention [0003] The purpose of the present invention is to provide a kind of preparation method of platinum-rhodium alloy. [0004] The invention provides a preparation method of a platinum-rhodium alloy. The composition of the platinum-rhodium alloy is, in weight percentage: iron≤2.5, sulfur 0.020-0.060, silicon≤0.5, platinum 28.0-34.0, and rhodium in the balance, characterized in that: The preparation method of described platinum-rhodium alloy comprises the following three steps, [0005] The first step: charging an...

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): C22C5/04C22C1/02
Inventor 李家波
Owner 李家波
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