INJECTION MOULDING PROCESSES, ESPECIALLY METAL INJECTION MOULDING PROCESSES

摘要

A method for producing a sintered component comprises moulding a compact which incorporates a binder, substantially removing the binder from the compact, and sintering the resulting debound compact. The compact is produced by an injection moulding process employing at least two different mixes (A, B), each mix comprising a preferably powdered binder and a powdered filler material. The binder comprises a polymer-based material. The filler material comprises a metal and/or ceramic filler material. The mixes are injected either sequentially or simultaneously into a mould (14) so that said first mix forms an outer layer of the compact and said second mix forms an inner layer of the compact.