Does using a graphite crucible contaminate white gold alloys?
No. In fact, we have found that white gold casts extremely well in Neutec casting machines. One customer, who has several J-10b machines now, transferred all his white gold to his first J-10b shortly after he discovered how well it worked. Neutec C50 grade graphite crucibles should be used for melting any white gold alloy. 53. Won’t the graphite crucible cause inclusions on my pieces? Graphite inclusions are not a problem with Neutec casting machines if they are used correctly. If graphite inclusions are present, the crucible bottom gasket has not been, changed when required. 54. When are the AutoValve crucible and the AutoValve disk used? What are their benefits? Processing tree sprues into casting grain is best performed with our patented Auto Valve crucible. The Auto Valve crucible is easy to load because no sealing rod is required. A special thermocouple inserted in the sidewall of the crucible provides temperature control. The inside bottom of the crucible is machined to receive a
