The cause of quenching of vacuum furnace
In the process of workpiece processing, there is a known as quenching treatment, it is more commonly used in most of the furnaces, but vacuum quenching furnace need how to operate, to explain to you below. In fact, the quenching treatment of the workpiece is mainly to improve the hardness, wear resistance and toughness of the workpiece, so as to meet different work demands. At present, the application of quenching process in machinery manufacturing industry is very extensive. A lot of people are likely to occur when using vacuum furnace quenching deformation, in fact, mainly because of uneven heating, quenching deformation is precise in temperature control does not wait for a reason, so, appear deformation is very normal things, but as long as in the process of dealing with more caution can avoid this situation. Here is a brief description of some of the things you need to pay attention to when the vacuum furnace is quenched.
In a vacuum furnace quenching for oil quenching heating steps, under pressure from low vacuum, vacuum quenching oil will be because the pressure is too low and can't cool, this time for the equipment of furnace lining, especially at the bottom of the plate, choose how the quality of the metal is the top priority, because involves the degree of thermal conductivity of different metal different so it is very crucial, how can be directly involved in the vacuum furnace quenching effect.
For the matter, before using the vacuum quenching furnace should be added in the quenching chamber high content of big density not active gas, used to squeeze the oil fire surface pressure, only in this way can fully embody the perfect work and on the surface of stainless steel in the process of quenching extremely smooth. Then there is a technical term called "critical quenching pressure", which is the minimum value of hardening stiffness under the same pressure. The common ground between the critical quenching pressure and the vacuum quenching oil is the hardness of the metal itself.