MANUFACTURE OF SCROLL MEMBER, SCROLL MODE USED IN THE MANUFACTURE, AND SCROLL MEMBER

摘要

PURPOSE: To provide an improved manufacturing method for scroll members which exhibit the lightweight, wear resistance, dimensional stability. ;CONSTITUTION: A two step and two piece high pressure casting method is used to manufacture scroll members each of which has a circular end plate 11, a scroll hub 13 on one side of the end plate, and a spiral curved part 12 on the other side of the end plate. The spiral curved part 12 is manufactured from a wear resisting alloy or aluminum alloy base component which has low liquefaction temperature, and is arranged in a spiral groove of a scroll mold. The scroll mold has a moving scroll mold and a stationary scroll mold. The moving scroll mold has a scroll hub 13-shaped first cavity, while the stationary scroll mold has a circular end plate 11-shaped second cavity and a spiral groove arranged below the second cavity.;COPYRIGHT: (C)1995,JPO