Cast aluminum piston for marine diesel engine

Jiangsu Yonghang Rail Transit Technology Co., Ltd. can provide 160-400 mm diameter high-hardness integral aluminum alloy casting pistons for marine diesel engines. They have general characteristics: the piston ring grooves are made of high-hardness, high-nickel-iron materials, The application of this material may increase the pressure resistance outside the groove, and at the same time, the internal temperature of the piston can be kept constant, which is the better performance of the aluminum skirt. The piston cavity allows an inner cooling oil channel to cool the piston in time and keep the piston better. Thermal load state; the piston pin hole is lined with high-strength alloy bushings, especially on high-load diesel engines. Since the above three different materials appear on one piston at the same time, we need to pay more in the process Efforts, we use die-casting and a series of control methods to ensure that the iron material of the piston ring groove parts and the local aluminum alloy can be tightly fitted together, and each piece of piston and each process has undergone various strict inspections. Entering the next step, in the process of inserting bushings into the pin holes, Jiangsu Yonghang Rail Transit Technology Co., Ltd. determines the cooperation between the two different materials of the piston body and the bushing through the expansion system of different materials and the thermal analysis and calculation of the piston. , so that the bushing is fastened to the pin hole of the piston body.

For lighter and durable pistons with a range of high temperatures, we process the properties of the materials to make the diesel engine work better under high temperature loads. This good performance is achieved using this new new alloy. In addition, we have also improved the casting process through the newly developed ADC (Advanced Diesel Casting Process). A good microstructure can be achieved, thereby further improving its durability and high temperature resistance.