| 摘要 |
1528036 Bearings CATERPILLAR TRACTOR CO 24 Oct 1975 [16 Dec 1974] 15479/78 Divided out of 1528035 Heading F2A [Also in Division B3] Apparatus for casting a bearing integrally with a bore in a part includes a mandrel 40 provided with cooling and solidifying means, e.g. coils 56, within one end of the mandrel and heating means, e.g. induction means 58, between the cooling means and the other end of the mandrel. In operation, the mandrel is slowly drawn upwards so that bearing material poured into the space between shaft 45 and bore 18 is, in turn, heated and solidified. |
