Clay graphite crucible for melting gold silver and other metal

Description

Our crucible designed to meld precious metal like gold and silver with other regular metal. As our crucible can withstand temperature up to 1400 C it can be used in kilns, propane melting furnace, electric melting furnace.
PREHEAT
PROCEDURE
For new crucibles and/or after long cool off phase crucible — Heat empty crucible slowly to 200°C (390°F) to eliminate any moisture, then heat on low power to 600°C OR up to bright red hot condition.
However the slow heating phase to 200°C (390°F) should be adopted whenever the crucible has been allowed to cool off for extended periods.
In the case of large capacity crucibles and furnaces with high output burners the rate of temperature rise should be controlled in the initial stages to avoid thermal stress.
SAFETY
PRECAUTION
Proper safety clothing and equipment must be worn at all times in the vicinity of molten metal.
Any residual moisture must be removed slowly from the crucible and/or furnace refractories before use.
Ensure that no moisture or volatile materials are introduced into the melt.
Crucibles used as transfer vessels must be sufficiently pre-heated before being filled with molten metal.
Hot crucibles should not be placed down on a cold surface.
The crucible should only be used for the purpose for which it is designed or recommended.
CARE FOR CRUCIBLE
Store crucible in dry and warm area
Do not stack one crucible inside another
Do not roll crucible
Use tangential fire rather direct fire
Empty crucible before removing from furnace ,do not solidify your metal
Clean carefully while still hot
NOTE: All crucible should be pre heat before use to remove moisture otherwise there possibility of fracture.
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Image displayed is for illustrative purpose only. Actual product may vary the displayed image but features and specification would be same or higher as defined above.