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Duchin Sapphire Thermocouple Technology Upgraded, Breaking Through Harsh High-Temperature Working Conditions

Mar 23, 2026 Leave a message

Recently, Chongqing Duchin Instrument Co., Ltd. has officially completed the technical upgrade of its sapphire protective tube thermocouple product series. With new material technologies and structural optimization, it provides more stable and durable temperature measurement solutions for extreme industrial scenarios such as high temperature, high pressure and strong corrosion.

As a core upgrade in the field of high-temperature temperature measurement, this technical iteration focuses on improving the performance of sapphire protective tubes. The products adopt high-purity single-crystal sapphire material, which features high temperature resistance, high hardness, thermal shock resistance, corrosion resistance and excellent air tightness. They can operate stably for a long time in ultra-high temperature working conditions. Compared with traditional ceramic and metal protective tubes, their service life is significantly prolonged, and measurement accuracy and anti-interference capability are greatly enhanced.

Duchin has carried out targeted optimization on the sealing structure, assembly process and response speed between the sapphire tube and the thermocouple core, effectively solving the failure problems caused by medium erosion, mechanical vibration and thermal shock in extreme environments, and achieving more reliable long-term online temperature measurement. The upgraded products are widely applicable to high-end manufacturing and energy fields such as metallurgy, photovoltaics, semiconductors, glass manufacturing, chemical reactors and aerospace, meeting customers' stringent requirements for high-precision and high-reliability temperature measurement.

With years of deep cultivation in the temperature sensor field, Chongqing Duchin Instrument Co., Ltd. has always taken technological innovation as its core competitiveness, and continuously optimized the R&D and production of thermocouples, thermal resistors, protective sleeves and temperature measurement components. This technical upgrade of sapphire protective tube thermocouples is an important breakthrough for the company in the layout of high-end temperature measurement products. In the future, the company will continue to serve global industrial customers with customized solutions and stable production capacity, providing precise temperature measurement support for the safe and efficient operation of industries.

 

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