| 摘要 |
<p>A closed loop coolant system which ensures the isolation of coolant fluid within an apparatus for producing a metal container by wall ironing. The apparatus includes a die toolpack which reduces the thickness of the container side wall, a ram 5 and a ram guidance assembly 10 which guides the ram along a bore of a tubular assembly. The tubular assembly has a fluid inlet, and the surface of the bore of the tubular assembly has grooves 13 for passage of coolant fluid between the bore and around the outside of the ram 5 and seals for minimising leakage of oil into the coolant. Coolant is directed back to a tank 20 via a heat exchanger 21 and any oil is skimmer off the coolant by an oil skimmer 24. This oil can then be filteredf, cleaned and recycled, or disposed of.</p> |
