V法铸造生产叉车前桥气孔与缩孔缺陷改进措施  

Improvement Measures of Air Hole and Shrinkage Defect in Front Axle of Forklift Truck Produced by V-Casting Method

作　　者：孙永涛 郭凌冰 郭永智 SUN Yong-tao;GUO Lin-bing;GUO Yong-zhi(Shanxi Huaxiang Group Co.,Ltd.,Luifen Shanxi 041000,China)

机构地区：[1]山西华翔集团股份有限公司,山西临汾041000

出　　处：《铸造设备与工艺》2024年第2期20-23,共4页Foundry Equipment & Technology

摘　　要：针对V法铸造工艺代替树脂砂工艺开发叉车前桥过程产生的孔洞类缺陷问题,通过采取控制熔炼温度、浇注温度、碳当量、残镁量、砂芯烘烤时间,以及增加铁水预处理、冷铁、砂芯排气量等措施,大量减少了气孔与缩孔缺陷,降低了废品率。Aimirig al the hole defects arising from lire development of forklift front axle by V-easting process instead of resin sand process,the air hole and shrinkage defects were greatly reduced and the scrap rate was reduced by controlling melting temperature,pouring temperature,earlxm equivalent,residual magnesium amount,sand core baking time,as well as ackling hot metal pretreatment,chiller and sand core exhaust volume.

关 键 词：熔炼 成分 预处理 冷铁 

分 类 号：TG249.9[金属学及工艺—铸造]