Gearbox Housing Parts

Posted at 1:42 AM, 5/14/2008

China Ningbo Yinzhou Renyi Casting Machinery Factorty is one of China professionally manufacturer and dedicated supplier of various castings including mainly supply part, gearbox housing part, investment casting, sand casting and aluminum die casting one. For investment casting, we adopt the method of soluble glass, complex shell, silicasol to make precision casting parts. And for sand casting, we adopt resin sand process to make grey iron and ductile castings. As for die casting, mostly we make the aluminum or alloy aluminum casting parts. If you have any interesting to our factory, pls feel free to contact with us by email or fax. We can accept the files with the form of Pdf, Jpg, CAD, IGS, STP, Pro-E as well as SOLIDWORKS via email. We sincerely wish we will be your reliable casting, mainly supply part, gearbox housing part supplier at the base of mutual benefit.

From:http://www.china-die-casting.com/castingparts/Gearbox_Housing_Parts.htm

Pressure Die Casting

Posted at 1:39 AM, 5/14/2008

NINGBO RENYI CASTING MACHINERY MANUFACTURER is one of China professionally manufacturer and dedicated supplier of various castings including investment casting, sand casting and aluminum die casting one.For investment casting, we adopt the method of soluble glass, complex shell, silicasol to make precision casting parts. And for sand casting, we adopt resin sand process to make grey iron and ductile castings.  As for die casting, mostly we make the aluminum or alloy aluminum casting parts.

Die casting machine between 250kN to 1000kN. Aluminum casting cast from several grams to kilograms. Supply finish machining process when customer require.

From:http://www.china-die-casting.com/pressurediecasting/Pressure_Die_Casting.htm

Die Casting For Motorcycles Parts

Posted at 1:36 AM, 5/14/2008

NingBo YinZhou RenYi Casting Machinery Factory Is one of China professionally manufacturer and dedicated supplier of various castings including investment casting, sand casting and aluminum die casting one.For investment casting, we adopt the method of soluble glass, complex shell, silicasol to make precision casting parts

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How Die Casting Work?

Posted at 1:30 AM, 5/14/2008

Die casting is frequently referred to as the fastest route between raw material and finished product.

Because of the differences in the melting temperatures of various die casting alloys, two methods of inserting the molten metal into the die cavities are used. These are referred to as hot chamber and cold chamber machines.

Hot chamber

Hot chamber or plunger machines are used mainly for zinc alloys. With modern technology, this process is increasingly being used for magnesium. The hot chamber process is a preferred die casting method due to its high rate of productivity. However, it cannot be used for some high melting point alloys or for those alloys which attack the steel working parts of the machine.

Operating sequence for the hot chamber die casting process:

1. Die is closed and gooseneck cylinder is filled with molten metal.

2. Plunger pushes molten metal through gooseneck passage and nozzle and into the die cavity. Metal is held under pressure until it solidifies.

3. Die opens and cores, if any, retract. Casting stays in ejector die. Plunger returns, pulling molten metal back through nozzle and gooseneck.

4. Ejector pins push casting out of ejector die. As plunger uncovers inlet hole, molten metal refills gooseneck cylinder

Cold chamber

Cold chamber machines minimize contact between the alloy to be cast and steel machine parts which allows the processing of high melting temperature alloys. Its primary use is for aluminum, brass, and larger magnesium die castings.

Operating sequence for the cold chamber die casting process:

1. Die is closed and molten metal is ladled into the cold chamber cylinder.

2. Plunger pushes molten metal into die cavity. the metal is held under high pressure until it solidifies.

3. Die opens and plunger follows to push the solidified slug from the cylinder. Cores, if any, retract.

4. Ejector pins push casting off ejector die and plunger returns to original position

From:http://www.china-die-casting.com/how_die_casting_works.htm

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