| 摘要 |
<p>A molding tool for injection or pressure die casting, comprises a part (2) which has ejectors (7) which, with tool cores (5) and slides (4), form inserts moving along straight guides (8,10). The guides enter the tool cavity and each has a reducing conicity with a cone angle NOTGREATER 1 degrees . Guiding surfaces for the inserts are angled to the guiding direction at a similar angle to the straight guides. An Independent claim is also included for a process for manufacturing the claimed tool in which the straight guides (8,10) and guide faces are machined with the appropriate conical angle and the inserts pushed into the guides leaving no gaps. Guide faces are cut to length according to the calculated longitudinal movement and fixed to stops for maintaining a small gap between guides and guide faces in the closed tool position.</p> |
