The following takes the medium frequency melting furnace as an example to explain the precautions that the application enterprises should pay attention to during use:(1) The medium frequency induction furnace should use a special rectifier transformer to increase the power supply voltage and limit the no-load operation of the transformer.(2) Standardize the installation, shorten the excerpt …

Cast iron rolls The carbon content of cast iron rolls is about 2.5%-3.5%. According to the main material, they can be divided into four categories: ordinary cast iron rolls, high nickel-chromium infinitely cold-hardened composite cast iron rolls, high chromium composite cast iron rolls and alloy ductile iron rolls. The common structures in cast iron rolls excerpt …

The main circuit of the series inverter one-to-two medium-frequency electric furnace is composed of the following main parts Three-phase half-controlled rectifier bridge, Rectifier RC absorption circuit, Pre-charging circuit, Current limiting reactor LD, Filter capacitor CL, Series inverter half bridge, Inverter RCD absorption protection circuit, Inductor, L-C tank composed of resonant capacitor, etc. 01 Rectifier trigger excerpt …

Quenching and tempering treatment usually refers to the quenching and subsequent high-temperature tempering of steel and is a common process in the heat treatment of steel. Its purpose is to improve the mechanical properties of the metal through appropriate heat treatment processes so that it has good comprehensive mechanical properties. The following is a detailed excerpt …

The selection of furnace construction technology and furnace baking and sintering technology should ensure that a reasonable three-layer structure is obtained after the furnace lining is sintered, that is, the initial thickness of the sintering layer, semi-sintering layer and buffer layer is roughly 1/3 each. This is an indispensable condition for the furnace lining to excerpt …

Due to the provisions of power supply policies in my country, the transformers used for industrial electricity are generally S7 and S9 transformers, with a secondary voltage output of 380V. The secondary output voltage of foreign industrial furnaces is 650-780V. It can be seen that if a special transformer dedicated to medium-frequency induction furnaces is excerpt …