数控龙门加工中心方滑枕铸造工艺

Casting Technology of Square Ram in CNC Gantry Machining Center

为了提高数控龙门加工中心机床上的方滑枕铸件质量,采用平做平浇、吊芯、合理的浇注系统、上下平面放置不同类型的冷铁等方式,结合采用高碳当量合成铸铁电炉熔炼技术,并针对气孔、渗漏、粘砂等问题,提出了预防措施。经生产实践,大批量生产的机床方滑枕铸件质量稳定、成品率高,合格率达95%以上。

In order to improve the quality of square ram castings on the CNC gantry machining center,measures such as flat casting,hanging core,reasonable pouring system,and different types of cold iron placed on upper and lower planes are used combined with the use of high carbon equivalent synthetic cast iron electric furnace melting technology,and preventive measures against problems such as pores,leakage,and sand sticking are put forward.Through production practice,the massproduced machine tool square ram castings have stable quality and high yield,with a pass rate of above 95%.