| 摘要 |
The present invention relates to a mould for making balls with integral shafts for valves by centrifugal moulding, made up of two complementary half-bodies (1 and 2) which are assembled and placed on a rotary mount, each of said half-bodies (1 and 2) forming, inside, a central cavity (5) from which there extend channels (6), such that the two half-bodies (1 and 2) between them define a central receptacle with the shape of the ball bodies to be moulded and ducts for forming the shafts associated with said ball body. |
