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De-wax Autoclave
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Product is not available
Accept Small Orders: Yes
Fulfilment Capacity (Per Month):1 NOS (Numbers)
Country Of Origin : India
1. De-wax: After the shell building procedure is complete, the wax within the monolithic shell is removed. The De-wax autoclave quickly and efficiently melts out the wax from the shells. The autoclave de-wax is the most reliable and cost-effective process for large production runs.
2. Minimize Shell cracks: This process of de-wax ensures that a surface layer wax of the wax tree almost instantly melts out. The shell is therefore not subjected to the thermal expansion pressure of the wax. This almost eliminates shell cracking and affords the use of thin-walled shells meaning greater economy & productivity.
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Additional Information
Description
Shells are placed in a trolley-mounted baskets and the basket is rolled into the autoclave vessel.
The quick-lock door is closed. The exhaust is closed & the steam valve is opened. The pressure
and temperature are raised to required levels within 15 seconds and held for some time.
Then the steam valve is closed, and the exhaust is opened. Once the autoclave pressure drops
fully, the wax drain valve is opened. The door is opened and the de-waxed basket of shells is
rolled out and a fresh batch is loaded. The drained wax is cast into slabs.
Essential Process Requirements:
This being a critical process, it must be conducted under controlled conditions and proper care.
• The shells must not be exposed to the redundant heat in the vessel for long. This heat is
insufficient for de-waxing but can raise the temperature of wax causing thermal expansion and
shells crack prior to autoclaving. Such an occurrence can be prevented by loading the shells
into the autoclave as quickly as possible and rapidly injecting steam to required pressure so
that the wax is subjected only to de-waxing temperatures and not to lesser temperatures that
are damaging.
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