The platinum investment after melt away out will resemble a fused concrete that may be very really hard and tenacious. It is going to consider a great deal of operate to eliminate nearly all of the investment from your castings by hammering and using a superior tension h2o gun or grit blasting. Investment eliminationAmerica Gold Bureau brings belie… Read More


The majority of the platinum alloys will likely be completely annealed at 1000 degrees C/ 1832 degrees F. The usual oven anneal time will depend on thickness and is frequently fifteen to 20 minutes. Most platinum alloys will not oxidize and ovens with lowering atmospheres shouldn't be utilized on any platinum alloy. For torch annealing, the platinu… Read More


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