What should we pay attention to in the production of vacuum furnaces

The structure, temperature control, heating process and atmosphere of vacuum furnace will directly affect the quality of the product after the production of vacuum furnace. In the forging furnace, increasing the temperature of the metal can reduce the melting resistance, but too high temperature will cause the oxidation or overburning of the grain, which seriously affects the quality of the product in the vacuum furnace. In the heat treatment process, if the steel is heated to a certain point above the critical temperature, and then suddenly use cooling hair cooling, it can improve the hardness and strength of the steel; If it is heated to a certain point below the critical temperature and then slowly cooled, it can make the steel more ductile.

In order to obtain a smooth surface and accurate size of the workpiece, or in order to reduce metal oxidation to protect the mold, reduce the processing allowance and other purposes, a variety of low-oxidation heating furnaces can be used. In an open flame furnace with little or no oxidation, reducing gas is produced by incomplete combustion of fuel, in which the workpiece can be heated to reduce the oxidation loss rate to less than 0.6%.