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砂型铸造设备应该如何选择

文章出处:http://www.moodlesaas.com 作者:砂型铸造设备厂家 人气:678 发表时间:2018-7-10【

科技日新月异的今天,砂型铸造设备型号繁多,不甘落后选择好的砂型铸造设备究竟要注意哪些方面呢?机器造型方法的选择,造型方法的选择应根据多方面因素综合考虑 , 主要有:

(1)铸件精度:当发生铸件尺寸精度高,表面粗糙度要求高的铸件时,应选择砂型紧实度高的造型方法。

(2)铸件材质:铸件材质不同,对砂型刚度的要求不同。一般铸钢、铸铁要求高于非铁合金,球墨铁高于灰铁和可锻铸铁。对于砂型刚度要求高的材质,宜选用砂型紧实度高的造型方法。

(3)铸型结构:例如当铸件具有狭小凹槽、高的吊砂、密集的出气孔等时,应选用起模精度高、砂型紧实度均匀的造型方法。

(4)铸件产量、批量和品种:产量大、批量大、品种单一的铸件宜选用生产效率高或专用的造型设备;小批量及多品种铸件宜选用工艺灵活、生产组织方便的造型设备。单件生产以手工造型为宜。

(5)铸件形状、大小和重量:在条件许可时,形状相似、大小及重量差别不大的铸件应选用同一砂型铸造设备。当砂箱需要设置箱带时尤其如此,以便于砂箱的统一。

(6)型砂的要求:在同一条生产线上布置多组砂型铸造设备时,应尽量考虑统一型砂的要求来选择砂型铸造设备。

(7)造型车间的配置设备:在老车间改造时此点尤为重要, 要结合原车间厂房条件、其他配套设备(如熔炉、砂处理等)的生产能力、工艺水平、运输条件、工艺流程等,用系统工程观点进行分析,确定选用哪一种砂型铸造设备更为合适,以发挥投资的更大效益。

(8)工装条件:模样的尺寸精度和表面粗糙度水平应与所选用的砂型铸造设备相匹配。

(9)优先选用少、无公害(噪声低,不散发有害气体)的、能满足环境?;?、工业卫生和劳动安全的造型设备。



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