For casting aluminum above the piston pin shrinkage holes problem in the casting process, mold design optimization, casting equipment configuration, and improved casting process according to the reasons for the formation of the holes from the multi-pronged approach, production-proven, proposed five

For cast aluminum piston pin above the seat in the casting process, holes will form a scale, based on the holes from the mold, a reason for the design optimization, casting the configuration of the device as well as casting process, and many other improvements that were made by actual production-pro

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Above the block for casting aluminum piston pin hole problem in formation of shrinkage porosity in the casting process, based on the cause of the hole, from the mold design optimization, configuration and improvement of casting technology of foundry equipment, multi-pronged approach, after actual pr

Can form in view of the casting aluminum biston boss above in the casting process shrinks the loose hole question, according to the hole formation reason, optimized, the casting equipment disposition as well as the casting craft improvement which designs from the mold and so on various obtaining, pa