Apparatus and method for quenching thin-walled metal hollow casing

摘要

The present invention discloses an apparatus and method for quenching thin walled metal hollow casings (6) manufactured by blow moulding. The apparatus comprises a moulding tool (1) defining a slot or aperture (21) and a delivery system for applying a coolant to the slot or aperture (21) of the moulding tool (1). The invention also discloses a method of applying a coolant to the external surface of a blow moulded casing (6) by applying the coolant onto an external surface of the casing (6) after the casing (6) has been formed against a tool (1) which includes at least one slot or aperture (21).