Model NO.: OEM
Pressure Chamber Structure: Vertical
Tolerance Grade: 7
Casting Surface Quality Level: 2
Certification: ISO 9001:2008
Transport Package: Carton + Pallet
Specification: Acc. to Customersâ€² Demand
Material:Â aluminium alloy, zinc alloy
Process: High Pressure Die Casting
Surface Treatment: Shot blasting, Anodic oxidation,Sand blasting,Â Painting,Powder coating Application: Auto, construction, industry, electrical power, etc.
Package: Pallet, Carton, Wooden cases, as customer's request
Hot-chamber die casting
Schematic of a hot-chamber machine
Hot-chamber die casting, also known asÂ gooseneck machines, rely upon a pool of molten metal to feed the die. At the beginning of the cycle the piston of the machine is retracted, which allows the molten metal to fill the "gooseneck". TheÂ pneumatic- orÂ hydraulic-powered piston then forces this metal out of the gooseneck into the die. The advantages of this system include fast cycle times (approximately 15 cycles a minute) and the convenience of melting the metal in the casting machine. The disadvantages of this system are that it is limited to use with low-melting pointÂ metals and that aluminium cannot be used because it picks up some of the iron while in the molten pool. Therefore, hot-chamber machines are primarily used with zinc-, tin-, and lead-based alloys.
Cold-chamber die casting
A schematic of a cold-chamber die casting machine.
These are used when the casting alloy cannot be used in hot-chamber machines; these include aluminium, zinc alloys with a large composition of aluminium, magnesium and copper. The process for these machines start with melting the metal in a separate furnace.Then a precise amount of molten metal is transported to the cold-chamber machine where it is fed into an unheated shot chamber (or injection cylinder). This shot is then driven into the die by a hydraulic or mechanical piston. The biggest disadvantage of this system is the slower cycle time due to the need to transfer the molten metal from the furnace to the cold-chamber machine.
Door Handles, Glass Door Handles, Wood Door Handles, Stainless Steel Door Handles.
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