Multi-layer composite forming crucible for vacuum induction melting of high-temperature alloy

The invention provides a multi-layer composite forming crucible for vacuum induction melting of a high-temperature alloy, the multi-layer composite forming crucible is of a layered structure, a melting layer, a buffer layer, a transition layer and a protective layer are sequentially arranged from inside to outside, the buffer layer is arranged on the outer side of the melting layer, the transition layer is arranged on the outer side of the buffer layer, and the protective layer is arranged on the outer side of the transition layer. And the protective layer is arranged on the outer side of the transition layer. According to the multi-layer composite forming crucible for vacuum induction smelting of the high-temperature alloy, the smelting layer is mainly used for selecting according to the types of the smelted alloy, zirconium oxide, yttrium oxide, calcium oxide and other materials can be selected, and the buffer layer is additionally arranged in front of the transition layer; and after the smelting layer cruc