Metal Casting,Custom Casting Metal Parts
Short Description:Die-casting is a metal casting process, which is characterized by using a mold cavity for applying a high pressure molten metal. The mold is usually processed with a higher strength alloy, this process is somewhat similar to injection molding. Most are non-ferrous die-casting, such as zinc, copper, aluminum, magnesium, lead, tin and pewter, and their alloys. Depending on the type of die-casting, requires the use of a cold chamber die casting machine or hot chamber die casting machine.
Material for casting: Aluminium,Zinc,Copper,Brass,Iron
Place of Origin: China, Serve for worldwide customers
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|Experienced products made with technology of Metal Casting|
The usual metal for casting mainly include zinc, copper, aluminum, magnesium, lead, tin and pewter, although tpressuring cast iron is very rare, but it is also feasible. Special die-cast metal, including ZAMAK, standard aluminum-zinc alloy and the US Aluminum Association: AA380, AA384, AA386, AA390 and AZ91D magnesium. When various metal casting characteristics are as follows:
Zinc: most likely to die-cast metal, the manufacture of small parts is economical, easy coating, compressive strength, plasticity, long life cast.
Aluminum: light weight, high manufacturing complexity and thin-walled castings dimensional stability, corrosion resistance, good mechanical properties, high thermal and electrical conductivity, high temperature strength remains high.
Magnesium: Easy machining, strength to weight ratio, commonly used in the lightest metal casting.
Copper: high hardness, corrosion resistance, mechanical properties of die-cast metal used best, abrasion resistance, strength close to the steel.
Lead and tin: high density, high dimensional accuracy, corrosion can be used as special parts. Considerations of public health, this alloy can not be used in food processing, storage equipment. Tin antimony alloy (sometimes also contain a little copper) can be used to manufacture handmade type letterpress printing and hot stamping.
|Main Equipments for Custom Metal Casting parts|
We specialize in design, research and manufacturing aluminum, copper and zinc alloy casting and forging products, which are widely used in automotive ,vehicles, ships and machinery, etc.
We have strong techinical force, equipment, testing method and professional personnel . There are chemical element analyzers that can control and analyze product chemical element effectively.
Shot blasting machine,sand blasting machine and vibrative grinder which ensures the quality and surface finish;
Processing center, CNC milling machine,CNC lathe,ordinary lathe and drill press that can strictly control products size and precision.
We are mainly producing according to customer’s drawings or samples,and many thanks for your enquires.
|General Knowledge on “Metal Casting”|
Metal Casting Benefits:
1. good quality
High precision casting size, generally the equivalent of 6 to 7, even up to four; good surface finish, usually equivalent to 5 to 8; high strength and hardness, strength than sand casting generally increased by 25 to 30%, but the extension rate reduced by approximately 70%; dimensional stability, good interchangeability; may die casting thin-walled complex castings. For example, the current minimum wall thickness of zinc alloy die castings up to 0.3mm; aluminum alloy castings of up to 0.5mm; the smallest aperture of cast 0.7mm; minimum pitch of 0.75mm.
2. High production efficiency
Machine production rate, such as domestic JⅢ3 horizontal cold air can be die-die-casting machine for eight hours on average 600 to 700, a small hot chamber die-casting machine per eight hours from 3000 to 7000 can; long life type-casting, a pair of die-casting type, bell-casting alloys, life up to hundreds of thousands, or even millions of times; easy mechanization and automation.
3. good economic effect
Because casting precise size, table pan clean and so on. Generally no longer be machined and used directly, or processing capacity is small, so not only improves the metal utilization, and reduces the amount of processing equipment and working hours; casting price will be easy; in combination with other die-cast metal or non-metal materials can be used . Saving metal assembly work and save.
Metal Casting Shortcoming
1) Because the liquid metal die-filled cavity high speed, flow regime is unstable, so the use of general-casting method, the casting is easy to produce pores, can not be heat;
2) on the concave complex castings, casting more difficult;
3) melting point alloys (such as copper, ferrous metals), the lower die-type life;
4) should not be small batch production, the main reason is the high cost of die-based manufacturing, die-casting machine production of high efficiency, small batch production uneconomical.
The biggest drawback is the cost of die-cast high. Casting equipment and molds, die casting method relative to other related components for all expensive. So when the production of a large number of products manufactured before casting more economical. Other disadvantages include: This process applies only to the higher mobility of metals and casting quality must be between 30 g and 10 kg.In the conventional die-casting, the casting of the last batch of castings always have pores. Thus any heat treatment or welding can not be performed, because the gas within the gap will be expanded under the action of heat, resulting in the release of micro-defects and internal surfaces.
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