Tungsten heater

1、Physical and chemical properties

（1） Purity：W≥99.95%；

Density：≥19.3g/cm3；

Application temperature environment：≤2300℃；

（2） Copper base

Purity：Cu≥99.95%；

Density：≥8.8g/cm3；

Application temperature environment：≤1000℃；

2、Application:

Tungsten heater components, as heat source in the sapphire growth furnace, have decisive effect for Al2O3 melt to form turbulence and produce radial temperature gradient. Therefore, high-purity and high-density tungsten heater components with delicate manufacture and reasonable designhave great significance towards quality control of sapphire crystal, energy saving and service life.