Process of making metal castings

摘要

A process for making metal castings, comprising the steps of (a) preparing an alloy from at least two different metals; (b) forming the alloy into a powder; (c) optionally combining the powder with a lubricant and/or flux; (d) pressing the powder into pellets; (e) melting one or more of the pellets; (f) casting the molten alloy into the mold; (g) cooling the metal casting. This process allows for the production of alloy castings even from high melting poorly soluble metals. The use of pellets containing a lubricant and/or flux is preferred. In addition the pellets may contain deoxidizers, grain refiners, and/or oxidizers. The process is especially suitable for the manufacture of dental, jewelry and precision castings.