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铸造分厂用呋喃树脂砂生产四缸柴油机机体时,采用水洗砂造型、擦洗砂制芯。水洗砂与擦洗砂由同一供应商提供,水洗砂比擦洗砂每吨便宜110元。经多年合作,原砂性能参数稳定,铸件质量合格。在“降成本、增效益”活动中,铸造分厂对呋喃树脂用制芯用原砂进行了擦洗砂和水洗砂的对比研究。根据研究结果,决定将现方案中芯砂用原砂由擦洗砂改用水洗砂。结果证明,芯砂用原砂改用水洗砂后,仍然保证了砂芯和铸件质量,且简化了现场管理,获得了较好的经济效益。
Casting factory with furan resin sand production of four-cylinder diesel engine body, the use of washed sand molding, scrub sand core. Washed sand and scrub sand provided by the same supplier, washed sand cheaper than wiping sand 110 yuan per ton. After years of cooperation, the original sand performance parameters of stability, casting quality. In the “cost-saving, efficiency-enhancing” activities, the casting factory made a comparative study on the raw sand used for making furan resin with scrub sand and washed sand. According to the results of the study, it was decided that the original sand used in the program should be changed from scrub sand to sand washing. The results show that the sand used to replace the sand with sand washing, still guarantee the quality of sand cores and castings, and simplifies the site management, access to better economic benefits.