Application of Boron Nitride Tubes in Steelmaking Industry

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In the metallurgical industry, measuring temperature is an important production technology indicator. Boron nitride tubes can be used as temperature measurement protection sleeves on various temperature measurement occasions. For example, when measuring the temperature of molten steel, molten iron, or non-ferrous metal melt, insert temperature sensors such as thermocouples or thermal resistors into the boron nitride tube. Since the boron nitride tube does not wet and react to the melt, it can ensure the accuracy of temperature measurement and prevent the high-temperature melt from damaging the temperature sensor.

The temperature in the metallurgical environment changes greatly and is highly corrosive. In the past, it was difficult for alumina or other ceramic thermocouple protection tubes to be directly inserted into 1600 degrees Celsius molten steel without cracking. Therefore, the one-time thermocouple intermittent temperature measurement method has been used, so that it is impossible to continuously measure the temperature and automatically control the temperature of the molten steel. Boron nitride tubes can work normally in this harsh environment. Boron nitride thermocouple protection tubes can be directly inserted into molten steel and continuously measure the temperature for 8-10 hours. It can withstand adverse factors such as high-temperature impact, and acid and alkali erosion in the metallurgical process, ensuring the long-term stable operation of the temperature measurement system.

Edgetech is a global advanced ceramic manufacturer. Our Boron Nitride ceramic products offer excellent thermal shock resistance and high-temperature resistance up to 2000°C. They also have excellent chemical inertness and resistance to acid and alkali corrosion.