RZ15212多级泵导液盘的精密铸造工艺

范修谦; 成建敏; 李雪兴

doi:10.15980/j.tzzz.2013.08.026

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RZ15212多级泵导液盘的精密铸造工艺
Investment Casting RZ15212 Drainage Disc for Multistage Pump
2013年33卷第8期页码：752-754
纸质出版日期： 2013 ，
DOI： 10.15980/j.tzzz.2013.08.026

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[1]范修谦,成建敏,李雪兴.RZ15212多级泵导液盘的精密铸造工艺[J].特种铸造及有色合金,2013,33(08):752-754.

Fan Xiuqian, Cheng Jianmin, Li Xuexing. Investment Casting RZ15212 Drainage Disc for Multistage Pump[J]. Special Casting & Nonferrous Alloys, 2013,33(8):752-754.
[1]范修谦,成建敏,李雪兴.RZ15212多级泵导液盘的精密铸造工艺[J].特种铸造及有色合金,2013,33(08):752-754. DOI： 10.15980/j.tzzz.2013.08.026.

Fan Xiuqian, Cheng Jianmin, Li Xuexing. Investment Casting RZ15212 Drainage Disc for Multistage Pump[J]. Special Casting & Nonferrous Alloys, 2013,33(8):752-754. DOI： 10.15980/j.tzzz.2013.08.026.

摘要

RZ15212导液盘材质为1.4408奥氏体不锈钢;质量为5.7kg

铸件上

分布锥形沉孔、沉孔、沉槽、环形沉孔、复杂的导液口和过流导液口;导液盘上分布着复杂的7个不同形状的深8mm的工艺筋;铸件为大平面结构

导液盘精密铸造工艺性较差。通过不同铸造浇注系统设计-组树工艺方案设计、浇注方式的工艺改变、在平面上通过增加工艺脐子

设计制造浇注工艺装备托架

增加型壳受力支撑

使精密铸造导液盘的成品率明显提高。

Abstract

1.4408 austenite stainless steel RZ15212 drainage disc with 5.7 kg in weight is composed of countersink

counterbore

sinking-groove

ring-counterbore

complex drainage outlet and drainage channel.There exists seven different shape process bars with 8 mm in depth.It is difficult to investment cast drainage disc due to its large planar structure.Different gating system-assembling tree design was considered.Through modifying gating process and adding process umbilical on the planar

designing a bracket to improve the deformation of mold shell

the RZ15212 drainage disc was produced successfully with a higher production rate.