4 kg Clay Graphite Crucible For Melting Copper - Brass & Other Metal

Our crucible designed to meld precious metal like Copper Brass 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.

Specification:

• Capacity: 4 Kg

PRE HEAT 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.

SAFTY 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.