| 摘要 |
The invention relates to an insert part for a cast piston of an internal combustion engine, which insert part can be infiltrated and is made from a sinter material. The insert part is produced from a powder, which comprises at least iron and preferably also nickel and copper or alloys of nickel and of copper. The sinter material comprises particles of different grain sizes, and at most 4 vol% of the sinter particles have a diameter of less than 75 µm. Thus, higher and coarser porosity of the sinter material and improved bonding between the cast material of the piston and the insert part can be achieved. |
