为了避免震击式造型机、震压式造型机和微震压实造型机在工作中产生的噪音,提高砂型紧实度及其分布的均匀性,进而提高铸件质量、改善铸造车间劳动条件。南京工学院机械系铸造教研组经过长期的研究试验,提出了差动压实造型机实用新型专利申请并获正式批准。 In order to avoid the noise produced in the work of shock molding machines, vibration compression molding machines and microseismic compacting machines, and to improve the sand compactness and the uniformity of the distribution, the quality of the castings is improved, and the working conditions of the foundry are improved. Nanjing Institute of Technology Department of Mechanical casting foundry after long-term research and experiments, put forward a differential compaction molding machine utility model patent applications and was formally approved.