Gravity Die Casting or Permanent Mold Process
The term "permanent mold" describes a mold that can be used repeatedly, in contrast to sand-molds that must be destroyed to remove the casting. Permanent molding is desired by those requiring an aluminum casting with good density and superior mechanical properties. Castings made with this method are much more dimensionally accurate and repeatable than those made using sand methods. This reduces or eliminates much of the machining that may be required.
Advantages: Very repeatable, sound density, can utilize cores in the casting design, short lead times, excellent appearance, tight tolerances, perfect for high volume.
The term "permanent mold" describes a mold that can be used repeatedly, in contrast to sand-molds that must be destroyed to remove the casting. Permanent molding is desired by those requiring an aluminum casting with good density and superior mechanical properties. Castings made with this method are much more dimensionally accurate and repeatable than those made using sand methods. This reduces or eliminates much of the machining that may be required.
Advantages: Very repeatable, sound density, can utilize cores in the casting design, short lead times, excellent appearance, tight tolerances, perfect for high volume.
No matter what type of molding you need done, we're the right supplier for the job.We can do Four types of castings - aluminum sand casting, gravity die casting, aluminum die casting and low pressure die casting. Our products include automotive parts, railroad parts, medical parts, marine parts, lighting parts, pump body, valve parts, architectural parts and furniture parts.
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Feature:
| OEM Aluminum Gravity Casting /Custom Permanent Mould casting sevice 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
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