Vacuum Furnace reasons for Quenching Deformation
In the process of processing workpiece, there is a method called quenching, which is commonly used in most furnaces, but how to operate the vacuum furnace quenching, the following vacuum furnace manufacturers to explain for you.
In fact, the main purpose of quenching is to improve the hardness, wear resistance and toughness of the workpiece, so as to meet different work needs. At present, quenching technology is widely used in mechanical manufacturing industry. Many people use vacuum furnace quenching easy to produce deformation, in fact, quenching deformation is mainly due to uneven heating, inaccurate temperature control and other reasons, so deformation is very normal, but only in the process of processing more cautious can avoid this situation. The following vacuum furnace manufacturers will briefly introduce some matters needing attention when quenching in vacuum furnace.
In the process of oil quenching heating by vacuum furnace quenching, under too low vacuum pressure, vacuum quenching oil will not be able to cool down because of too low pressure. At this time, for the equipment of furnace inner wall, especially the bottom plate, how to select the metal quality is the most important, because the thermal conductivity of different metals is very different, so this is very important. It is directly related to the quenching effect of vacuum furnace.
For this matter, before quenching in vacuum furnace, high density inactive gas should be added into quenching chamber to produce pressure on the surface of oil fire. Only in this way can the perfect work and extremely smooth surface of stainless steel in quenching process be fully reflected. So here comes a technical term "critical quenching pressure", which refers to the minimum hardness of quenching under the same pressure. The common feature of critical quenching pressure and vacuum quenching oil is the hardness of the metal itself.
Vacuum Oil Quenching Furnace
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