Platinum rhodium thermocouple in glass kiln on the extension of service life

Platinum rhodium thermocouple extend the service life of the current in glass kiln, platinum rhodium thermocouple is commonly used in glass kiln heat temperature measuring element, its simple structure, convenient use, high measurement precision, wide measurement range, facilitate remote transmission and automatic recording. And can put a few thermocouple by switch receives the same only measuring instrument for temperature concentration checks. But the platinum and rhodium belong to the rare precious metals, the price is very expensive. And with the development of the industry and continued strong demand for platinum ornament, make the price of platinum is growing.

the price of platinum has been from the early 1960 s is 7000 yuan RMB per kg up to the present 240000 yuan per kilogram. The price of rhodium was once more than RMB 600000 yuan/kg. Generally a year a medium-sized glass kiln consumes platinum rhodium metal 20 grams to 50 grams, or even more. In glass kiln, therefore, reduce the consumption of platinum rhodium on no doubt is of great significance. And the installation and maintenance of platinum-rhodium thermocouple probe is often ignored by people, be somewhere between glass kiln professional and thermal instrument professional technology between the blind spot.