| 摘要 |
<p>Method for manufacturing tubes by sintering and infiltration, the characteristic features of the invention being that the tube wall is formed from a metal powder on a mandrel and is sintered and that the tube wall, during one sintering stage, is sealed by infiltration by means of an infiltration material which solidifies in situ when the temperature is lowered after sintering and which is capable, when in the liquid state, of wetting the metal powder particles, the moulding of the tube from the metal powder being preferably carried out by a wet or dry pressing process or by extrusion of the metal powder.</p> |
