Aluminum castings generally heat the aluminum or aluminum alloy to a liquid state, and then pour it into the cavity through a sand mold or a metal mold. Aluminum alloy parts or aluminum parts of various sizes and shapes are usually called aluminum die-casting parts.
Composite aluminum alloy casting is a new technology with electromagnetic pump low pressure casting technology as the core, aluminum alloy smelting forming composite purification technology and manufacturing technology as the core. The production of high-quality aluminum castings is a modern technology. The electromagnetic pump low pressure casting liquid metal conveying system has stable flow and convenient flow control. The advantage of eliminating liquid aluminum back sucking is that the use process is automated, which not only improves the casting quality of aluminum castings, but also improves the working environment. Reduce labor intensity and realize automation and modern casting production.
The purification of
aluminum castings is an important part of aluminum smelting and composite purification facilities. In addition to gas injection and rotating foam ceramic filters and high degassing, it also has the performance of metal inclusions. In addition, it adopts new long-life lining material and has an independent heat preservation/heating system, which can be used for large-scale continuous production and mass production. This technology has the advantages of high purification efficiency, long service life, low cost, good effect, convenient installation and flexible use. Casting experience tells us that there are three main aspects to solve the complex quality problems of aluminum castings.
(1) Molten aluminum
(2) Smooth transition aluminum halide lamp
(3) The size and stability of the mold and sand core process.
Modeling of the core manufacturing process shows that the casting quality and output of
aluminum castings have a direct impact. Porosity, sticky sand, scarring, hot cracking have a good relationship with surface quality, dimensional accuracy and sandiness. The core resin binder is a new type of molding manufacturing technology, mainly used for hard sand and zircon sand resin. The mechanism of self-setting sand is difficult to become an independent non-hardening chemical reaction. At the beginning, when the aluminum casting starts to harden, once the solidification reaction starts quickly. Therefore, it has the characteristics of strong toughness, high strength, small gas collapse, and good performance. This is a complex casting surface of aluminum castings, which ensures the stability of quality and dimensional accuracy.
The surface technology used in aluminum castings is rich and colorful, the surface effect is very beautiful, and the surface effect is very delicate.
