铂铑铂热电偶是高温炉测温元件,由于该热电偶的接头长时间接触高温,所以损坏大多出现在接头处,其损坏方式是引起接头断裂,造成测温不准。铂铑铂热电偶接头的焊接,最开始我们是采用水银通电焊接,但因水银蒸气有毒,所以后改用氧-乙炔焰焊接方法。焊接时,只要将两 Platinum rhodium platinum thermocouple temperature sensor is a high temperature furnace, the thermocouple connector for a long time exposure to high temperatures, so most of the damage occurred in the joints, the damage is caused by joint fracture, resulting in temperature is not allowed. Platinum rhodium platinum thermocouple connector welding, the beginning we are using mercury power welding, but because of mercury vapor toxic, so after the switch to oxygen - acetylene flame welding method. When welding, just two