Hot molding sand refers to high-temperature sand that poses difficulties in sand preparation, molding, and casting ... metal penetration, swells, erosion, gas-related pinholes, and broken molds.
In alloys oontaining tin, however, a laler of charcoal placed in the crucible is liable to convert part of the metal into dross, therefore ground clean sand should be used in place of it.
The rotating screen separates the debris from the sand. While.... Used M&Q EQUIPMENT - BOND EQUIPMENT 1830 x 4900 x 2 DECK DEWATERING SCREEN Horizontal Dewatering Screen, Complete with Twin 13kw ...