Diesel engine piston, mold and casting method thereof and diesel engine piston casting machine

• Main Authors: ZHU YIPENG, YI LYULIN, XIA ZHITAO, LIAO CONGLAI, HU YIMING, YAO XUEWEI, WANG XI
• Format: Patent
• Language: Chinese; English
• Published: 26.01.2024
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; FOUNDRY MOULDING; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

The invention relates to the field of casting, in particular to a diesel engine piston and a die, a casting method and a diesel engine piston casting machine thereof. The invention provides a casting method of a diesel engine piston, which comprises the following steps: pouring molten aluminum into a diesel engine piston mold, and cooling according to the sequence of an inner mold, a pin core, an outer mold and a mold cover to obtain the diesel engine piston. According to the casting method, the casting structure and the chemical combination phase type of a piston material Al-12Si-5Cu-2Ni-1Mg aluminum-silicon eutectic alloy commonly used by a current diesel engine aluminum piston are fully utilized, casting equipment and molds are optimized, the form and distribution of the casting structure in the material are achieved, the high-temperature fatigue cracking resistance of the diesel engine piston is improved, and the service life of the diesel engine piston is prolonged. And the manufacturing cost of the high