Explanation

A smelting method of heating melting metals and alloy by induction electrothermal effect under vacuum conditions. Choose the power frequency based on the furnace material and capacity, which can be divided into high-frequency, intermediate frequency, and power frequency. induction furnace can also be divided into two types: cored (closed trough type) and coreless (crucible type). The former has high electric heating efficiency and high power factor, but it needs to start melting and has low melting temperature. It is suitable for continuous melting of a single variety; The latter is suitable for melting of special steel and nickel base alloy due to its high melting temperature but low electrothermal efficiency. The vacuum induction melting plus vacuum arc remelting process can significantly improve the plasticity, high temperature strength and fatigue properties of melting alloy. It is called double vacuum treatment and is widely used in the production of high temperature alloy and high alloy steel that need very good performance, high safety and reliability.

Classification