Safety design principle of true air hardening furnace

Safety design principle of true air hardening furnace

Quench in vacuum quench and liquid quench two kinds.The gas quench will cool the workpiece by filling the cooling room with high purity, such as nitrogen, in the cooling room.The data of low critical cooling speed of martensitic system, such as high speed steel and high carbon chrome steel, are applied to the gas quenching.The liquid quench is to heat the workpiece in the heating chamber, move it to the cooling room and fill in the high purity nitrogen and immediately send it to the quench tank, and quickly cool down.If the external quality of the demand is high, the backfire and the accumulation and softening of the workpiece vacuum quenching and the solution of solid heat solution should be carried out in a vacuum furnace.
The secondary construction part of the true air quench furnace, which affects the construction of the hearth, the furnace door and the teeth ring.Because the vacuum gas quenching furnace in positive pressure and negative pressure alternating repeated application characteristic, in order to ensure the safe sex equipment application complete equipment of economy at the same time, the furnace shell and the ring gear after practice of calculation method, the check figure method, adopt the method of infinite element analysis to construct safe sex.Through mechanical model, the structural optimization of the thin segment in the design structure is carried out, and the requirements of structural safety are achieved.

Small vacuum heat treatment furnace design characteristics

Small vacuum heat treatment furnace design characteristics

Vacuum heat treatment is the heat treatment technology and vacuum technology combined the two together a comprehensive technology, mainly refers to the heat treatment process of all or part of the process of vacuum. Vacuum heat treatment furnace thermal efficiency is relatively high, can realize the rapid cooling or heating work, also can realize no decarburization, no oxidation and carburizing, and so on, in addition to this, you can also take scales of the treated surface, and can also play a role skim degassing, etc, which can be processed workpiece surface brightness purification effect.
When small vacuum heat treatment furnace design USES a lot of new and high technology, the following will introduce small vacuum heat treatment furnace design features:
1, water cooling device
In order to ensure that the vacuum heat treatment furnace of the furnace shell have no deformation work under high temperature condition, etc., must be installed in a vacuum heat treatment furnace cooling device, so as to guarantee the normal work of the vacuum heat treatment furnace, can prolong the service life of vacuum heat treatment furnace.
2, low voltage large current
Vacuum heat treatment furnace adopts low voltage large current. The working voltage of vacuum heat treatment furnace is too large, arc discharge may happen, burned electric heating element, cause an accident. So the working voltage of vacuum heat treatment furnace is low, usually below 100 v.
3, vacuum heat treatment
Many insulation only in vacuum heat treatment, because the material easy to oxidation under atmospheric conditions.
4, vacuum sealing
Sealed vacuum heat treatment furnace processing components can ensure the quality of products. So the part that is installed on the vacuum furnace to ensure the sealing structure is.
5, intelligent operation
The process of vacuum heat treatment furnace metal workpieces is complex, some process to be finished in a short time, so only intelligent operation to ensure the accuracy of the processing.