The degree of vacuum is represented by Pa (1atm =101 331kPa) According to the level of vacuum, it can be divided into four levels: 1 33x103~1 33Pa is low vacuum, 1 33x10-1 ~1 33x10-2Pa is medium vacuum, 1 33x10-3~1 33x10-5Pa is high vracuum, Below 1 33 x10-5Pa is ultra-high vacuum Vacuum heat trea...
l High temperature deformation quenching Deformation quenching belongs to the category of deformation heat treatment High temperature deformation heat treatment is the thermal external process of plastic deformation above recrystallization temperature, including high temperature deformation quenching and high temperature deformation normalizing ...
2023-05-22
1 Metal melting furnace: This is the most widely used one, the development of the thyristor power in our country, began melting, smelting can be a variety of carbon steel, alloy steel,, cast iron, copper and aluminum also can, and for refining high-purity zinc and other nonferrous metals IF power melting load is the worst load Impedance changes, unstable load, but the frequency power supply can ideally complete this task, the most prominent advantage is ...
2023-05-10
2023-05-26