Quartz ceramic crucible is used as a container of loading polcrystalline silicon materials during the production of solar energy polycrystalline silicon ingont casting,it will be melted under1550degree celsius,crystallized and prodution of polycrystalline silicon ingot casting,it is the key consuming part during the production of polycrystalline silicon ingot casting forming technology.And using good quality melting quartz as raw materials,the product has the characteristics of high purity,good heat stability,good antiseptic function,compressive strength and bending strength are big,precision of geometric size is high,and service life is long,etc.