| 摘要 |
The vent nozzle for casting and die-casting tools (dies) is intended for insertion in the walls of the moulding tool (die), the nozzle body having a top plate arranged on the side (2) where the moulding material is located and being provided with openings. The nozzle body (4, 4a) has at least one head piece (5, 5a, b, c) of solid configuration with recesses (6, 6a, 18, 19) arranged on the periphery and an annular net (7) adjoining the recesses on the gas outlet side. <IMAGE>
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