This technology offers an alternative solution to achieve higher vacuum level inside the metal die casting cavity by an integrated complete system comprising of die casting machine, furnace and two-stage vacuum system, instead of purely relying on the response time of conventional single vacuum pump system and the complicated venting channels of the die cavity.
To achieve an effective vacuum evacuation process by conventional process, the die cavity should be effectively sealed and highly responsive vacuum system should be adopted. Yet, even these two criteria are met, it is inevitable that gas is not completely removed and hence the residual gas has to be pushed out through air venting. However, gas entrapment will still exist in die-casted products.
Automotive Platforms and Application Systems (APAS) R&D Centre was established in 2006 by the Innovation and Technology Commission of HKSAR Government and hosted by the Hong Kong Productivity Council. The Centre undertakes R&D programmes as well as commercialising R&D results in collaboration with industry, universities and technology institutes for the development of the APAS technology. Since its establishment, APAS R&D Centre has carried out over 100 R&D projects and focus on 3 R&D areas, Green Transportation, Smart Mobility and Intelligent Systems. To facilitate greater synergy and further enhance cost effectiveness, APAS is form part of the Hong Kong Productivity Council with effect from 1 Nov 2012.