sand casting is mainly for metal, and Hangzhou Hongcheng Pml Precision Mechanism Ltd is mainly the aluminum for sand, casting, casting technology, used in aerospace, aviation, automobile and other industries. With the precision casting technology, the filling properties of the alloy solution can be greatly improved, and the complete filling and size control of the aluminum casting can be realized, thus the casting defects can be suppressed and the quality of the castings is improved.

    the goal of the new American military aircraft: the quality is reduced by 50%, the number of fasteners in the fuselage is reduced by more than 80%, the cost of batch production is reduced by more than 25%, and the manufacturing cycle is shortened by 1/3 to 1/2. In addition to the wide use of new materials, a large number of large, thin-walled, complex, integral and high-quality precision castings are needed. At present, aluminum alloy precision castings have been widely used in the missiles and missile tubes of the US tactical cruise missiles. In the field of large transport and civil aviation, the frame of the Boeing 747 40ER aircraft instrument console adopts the precision casting technology of the SOPHIA melt mold, reducing the 27kg, reducing the cost by 50%, shortening the cycle by 89%, and reducing the cost of the equipment by 90%. In Boeing 737, 747, 757, 767 and 777, the cab instrument skeleton, the fuel pump shell, the whole cabin door and the A320 aircraft cabin door frame and the flap guide rail are all formed by the precision casting technology.