Melting critical superalloys under high vacuum conditions demands tight controls and strict adherence to approved manufacturing procedures.
Everything, from the selection of raw materials to vacuum pressures, vacuum leak rates, melting and refining practices and pouring techniques, is closely monitored against standard operating procedures and internal specifications to ensure quality is never compromised.
Rigid control of highly reactive elements, distillation of volatile impurities and maintenance of melt quality can only be achieved by the strict application of process controls developed through many years’ experience in producing complex vacuum melted superalloys.
Conventional furnace pouring techniques have been refined to ensure that the molten alloy from the furnace enters the moulds via proprietary designed high quality refractory monolithics and filter systems that maximise alloy quality and cleanliness, at the same time minimising central shrinkage using the latest solidification technology.
