Aluminum alloy precision casting aluminum liquid is artificially irrigated to the mold cavity, which is a big difference from aluminum alloy precision casting. Artificial irrigation refers to the method in which liquid aluminum alloy is filled and formed under the effect of gravity (gravity). Because artificial irrigation has some influence on the stability of the product, the pouring of air and impurities in the irrigation process, and the temperature of aluminum after manual transportation, it will be somewhat affected.

Common problems of aluminum alloy precision casting

If the control process is not well controlled, it will still lead to product, shrinkage and pores. The fineness will also be lower. If you control it well, you can make some good products. Aluminum alloy precision casting is a process of vacuuming the aluminum liquid through the liquid riser pipe and sucking the aluminum liquid from the bottom to the top into the mold cavity. During the production and manufacturing process, the molten aluminum cannot be seen in the holding furnace.

The products produced by this process have high precision in size, beautiful appearance, high fineness and good compressive strength. Especially after T6 treatment, the aluminum castings have very good and high compressive strength, hardness and elongation, which are very suitable for some machinery. For products with strict performance requirements, such as: automobile and motorcycle, aviation, railway, valve body, pump body, automation equipment, etc.

Solutions

In aluminum alloy precision casting, the correct control of the charging and pressurization of the casting mold is the key to obtaining good castings, which is completely completed by the liquid level pressure control system. The aluminum alloy precision casting manufacturer tells you that according to the requirements of the casting, the liquid level pressure system can be freely adjusted within the technical parameters, the operation is stable and reliable, and the structure is easy to maintain.

The liquid riser is a channel for diversion and feeding, which is sealed and connected with the hole cover in a detachable way to form a sealed container under pressure. Under the effect of technical air pressure, when the molten metal passes through the liquid riser for charging type and pressurized crystallization and solidification, the unsolidified alloy liquid returns to the acupoint through the liquid riser. Therefore, the aluminum alloy precision casting liquid riser is properly designed and used. important.

There are two main types of holding furnaces: tunnel type holding furnace and molten pool type holding furnace. There are two types of cavity holding furnaces: graphite cavity and cast iron cavity. The aluminum alloy precision casting manufacturer tells you that the molten pool type holding furnace adopts the whole combination of furnace refractory materials and silicon carbon rods for radiation heating and heat preservation. It has the characteristics of large capacity, long life and simple maintenance, which is conducive to continuous production requirements and is applied to modern aluminum Alloy precision casting machine.

Conclusion

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