Method for producing temperature measuring tungsten-rhenium thermocouple wires in high-reliability manner through combined technology

Abstract

The invention relates to a method for producing temperature measuring tungsten-rhenium thermocouple wires in high-reliability manner through a combined technology. Through the technical scheme, ammonium tungstate with purity 4N and ammonium perrhenate with purity 4N are made into a solution, through spray crystallization, tungsten-rhenium alloy compund powder is made, the powder is pressed into broken pieces and then is subjected to hydrogen reduction, then, the pieces are pressed and sintered into metal bars, and through rotary swaging, annealing and wire drawing, the needed diameter is obtained; the problems that the full-liquid-phase mixed powder grains are too fine, bar making is difficult, after process penetrating, components of all segments of the head, the middle and the tail of the wire strip are not consistent, thermoelectric potential difference is too large, and the subsequent pairing is not accurate are solved. Through the method, making convenience degree of the temperature measuring tungsten-rhenium thermocouple wires and the temperature measuring precision of the temperature measuring tungsten-rhenium thermocouple wires are obviously improved, and the method has thegiant scientific significance and application value in improving the process control level, and reducing the control material part unit cost in many industries, particularly, the high-technology manufacturing industry, in the national economy.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes methods used during production of wires made from tantalum ruthenium (Ta) alloys. These techniques aimed towards producing pure metallic Ta particles while maintaining their quality. By selecting specific elements based on these properties, it was possible to achieve better results than previous methods without compromising its performance. Additionally, this technique allows for easier handling and processing of raw material compared to current processes such as solid state reactions. Overall, this new approach resulted in higher efficiency and precision in thermal measurements over time.

Problems solved by technology

The technical problem addressed by this patented technology relates to producing pure metallurgically strong materials with good properties such as resisting corrosion or abrasion while maintaining their heat transfer capabilities at temperatures above 1000°C (hot). This can lead to improved performance characteristics over time when exposed to these extreme environments.

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