The gravity casted parts for a wide range of industries. For example , automotive, hydraulic, railway, electronic, and commercial. Common parts we manufacture with the gravity casting process include engine housing, brackets, cooling systems and large utility equipment. Our part size capabilities range from 25mm to 750 mm (1" to 30"). We offer general tolerance per ISO 2768
Permanent mold (gravity die) casting, like die casting, is suited to high-volume production. Permanent mold castings typically are larger than die castings. Maximum weight of permanent mold castings usually is about 10 kg, but much larger castings sometimes are made when costs of tooling and casting equipment are justified by the quality required for the casting.
Permanent mold castings are gravity-fed and pouring rate is relatively low, but the metal mold produces rapid solidification. Permanent mold castings exhibit excellent mechanical properties. Castings are generally sound, provided that the alloys used exhibit good fluidity and resistance to hot tearing. Mechanical properties of permanent mold castings can be further improved by heat treatment. If maximum properties are required, the heat treatment consists of a solution treatment at high temperature followed by a quench and then natural or artificial aging. For small castings in which the cooling rate in the mold is very rapid or for less critical parts, the solution treatment and quench may be eliminated and the fast cooling in the mold relied on to retain in solution the compounds that will produce age hardening.
For hot chamber process the pressure chamber is connected to the die cavity is immersed permanently in the molten metal. The inlet port of the pressurizing cylinder is uncovered as the plunger moves to the open (unpressurized) position. This allows a new charge of molten metal to fill the cavity and thus can fill the cavity faster than the cold chamber process. The hot chamber process is used for metals of low melting point and high fluidity such as tin, zinc, and lead that tend not to alloy easily with steel at their melt temperatures. Such as Zinc Die castings, Copper Die castings we offer.
OEM Aluminum Gravity Casting /Custom Permanent Mould casting material typical Applications
|319.0||Engine crankcases, gas and oil tanks, engine oil pans, engine parts.|
|355.0||Air compressor pistons, printing press, water jackets & crankcases.|
|356.0||Flywheel castings, automotive transmission cases, oil pans, pump bodies.|
|A356.0||High strength airframe and space frame structural parts, machine parts, truck chassis parts, high velocity blowers and impellers.|
|A357.0||High strength aerospace castings.|
|535.0 (Almag 35)||High strength alloy used for electronic equipment, aircraft components and parts requiring a high degree of dimensional stability and strength. Superior ductility makes it an excellent replacement for malleable iron. No heat treat required.|
|713.0 (Tenzaloy)||Automotive parts, trailer parts, pumps & mining equipment.|
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