| abstract |
The present invention relates to a method for sintering metallic and/or non-oxide parts. According to the invention, a corresponding green body comprising a metal and/or non-oxide component is first encapsulated in a metal halide salt (NZ), then pressed gas-tight and subsequently heated in the metal halide salt (NZ) for sintering. The body, optionally prepared by a powder-metallurgical process, can also be encapsulated in a metal halide salt at room temperature and compacted gas-tight. In a first embodiment, the thus encapsulated bodies are fed directly into a molten salt bath. Alternatively, the green body encapsulated with the metal halide salt is first embedded in a porous salt bath and heated together until it reaches at least the melting temperature of the salt. The maximum temperature of 1400 ℃ should not be exceeded in general. After cooling, the salt can be dissolved, for example, in water, aqueous solution or short-chain alcohol. The sintered part can be removed. Advantageously, the process may be carried out in the presence of air. |