捷尔任斯基工厂用СЧ21-40和СЧ24-44灰铸铁铸造柴油机活塞、汽缸和汽缸套时,已不再用在个别情况下竟高达250公厘的冒口了(图1~3)。这是由于很好地运用了内浇口、集渣槽和直浇口断面适当的雨淋浇铸系统及一定高度的浇口坭心的结果。在这种情况下,所采用的尺寸加大的集渣槽,同时也当作了易割冒口。只有将带 With the СЧ 21-40 and СЧ 24-44 gray iron castings of Diesel pistons, cylinders and cylinder liners, the Dzerzhinsky factory no longer uses risers up to 250 mm in a few cases (Figures 1 to 3). This is due to the good use of the gate, slag tank and sprue section of the appropriate rain casting system and a certain height of the gate heart results. In this case, the size of the tank used to increase the slag tank, but also as easy to cut riser. Only belt