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What Is Hot Chamber And Cold Chamber Die Casting

Views:71     Author:Site Editor     Publish Time: 2020-11-30      Origin:Site

What Is Die Casting


In the most basic terms, die casting service involves the use of high pressure to force molten metal into the mold cavity to produce metal parts. These mold cavities are made from two hardened tool steel molds and processed to conform to the specifications of the respective part or product. For best results, most die castings are made of Non-ferrous metal (metals that do not contain any significant amount of iron). There are two types of die casting processes: hot chamber and cold chamber die castings.

 

Hot Chamber Die Casting


Hot chamber die casting outlines the same process used in hot chamber die casting as described earlier-using pressure to press molten metal through the cavity of the preformed die. The main feature of Hot Chamber Die Casting is that the metal is heated inside the casting machine rather than in a separate machine or furnace. The Hot Chamber casting machine, also known as a gooseneck machine, is characterized by a built-in furnace in which metal is heated to a molten state. They use hydraulic pistons to drive molten metal out of the furnace and into the mold. Hot Chamber Die Casting is a relatively fast process, typically lasting only 15 to 20 minutes. Although not suitable for high melting point metals, it is an ideal choice for zinc, tin, and lead alloys.

 

Cold Chamber Die Casting


Cold chamber die casting overview by its name, you might assume that cold chamber die casting involves forcing cold metal through the mold cavity, but this is not necessarily true. Cold Chamber Die Casting still requires the use of molten metal forced into the mold. The difference between the two casting processes is that hot chamber die-casting heats the metal in a casting machine, while cold chamber die-casting heats the metal in a separate furnace and transfers the newly melted metal to the casting machine. For Cold Chamber Die Casting, the metal is first heated in a separate furnace to reach a molten state. The molten metal is then conveyed to the foundry machine and then to the foundry room. The machine uses a pressurized plunger to press molten metal into the mold cavity.

 

Certain types of metals (metals with a high melting point) can only be processed by cold chamber die casting. The high temperatures required to melt metals such as aluminum, magnesium, and copper mean that separate furnaces must be used, which is why some manufacturers choose cold chamber die casting over hot chamber die casting.

 

As mentioned above, the point or temperature of each metal determines the type of custom die casting process that must be used. The most common metals used in hot chamber die casting are zinc alloy, lead, magnesium for cold chamber die casting, high melting point metal alloy of brass, copper, and aluminum. Yifei is a professional manufacturer and supplier for custom die castingprecision investment castingsand mold casting and custom forging in China.


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