The aluminum alloy airtight joint casting processing factory believes that casting is an early metal thermal processing technology mastered by humans, with a history of about 6,000 years ago. Among the existing metal forming methods, the casting process is also an economical method, especially for the forming of some parts with complex shapes or difficult to cut.

　　The aluminum alloy airtight joint casting processing factory believes that the casting process of magnesium alloy includes gravity casting, pressure casting, squeeze casting and low pressure casting.

　　The aluminum alloy airtight joint casting processing factory believes that gravity casting refers to the process of molten metal being injected into the cavity under the influence of its own gravity. When using this process to produce magnesium alloy automobile wheels, it is difficult to obtain high strength due to the low material density and its own gravity.

　　The aluminum alloy airtight joint casting processing factory believes that the traditional pressure casting process, referred to as die casting, is to first inject molten metal into the injection cylinder, and then apply high pressure to it with a plunger, so that it is filled and solidified under the action of high pressure, and the pressure is kept constant. After time, the mold is opened and the casting is ejected.

　　The aluminum alloy airtight joint casting processing factory believes that squeeze casting is divided into direct squeeze casting and indirect squeeze casting. Both inject molten metal into a mold cavity at a relatively low flow rate, then close the mold and solidify under high pressure. Direct squeeze casting, also known as liquid die forging, is generally performed on vertical machines.