Graphite crucible has good thermal conductivity and high temperature resistance. During high temperature use, the coefficient of thermal expansion is small, and it has certain strain resistance to rapid heating and cooling. It has strong corrosion resistance to acid and alkaline solutions and excellent chemical stability. In metallurgy, casting, machinery, chemical industry and other industrial sectors, it is widely used in the smelting of alloy tool steel and non-ferrous metals and their alloys, and has good technical and economic effects.
The melting point of gold is 1064.43 ℃, and that of silver is 961.78 ℃
The melting point of graphite is as high as 3850 ± 50 ℃. Therefore, it can be said that graphite crucible is the best choice for melting gold and silver.
Company name: Dongguan Jiecheng graphite products Co., Ltd
Company telephone: 0769-89392518
Company fax: 0769-89392508
Miss he: 13500098659
Address: No. 3, Caimei 2nd Road, longjiantian, Huangjiang Town, Dongguan City;