Production of Flange Swing Check Valve by EPC（Expendable Pattern Casting）

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[1]赵敏,李伟.法兰旋启式止回阀消失模铸造的实践[J].特种铸造及有色合金,2011,31(11):1038-1040.

Zhao Min, Li Wei. Production of Flange Swing Check Valve by EPC（Expendable Pattern Casting）. [J]. Special Casting & Nonferrous Alloys 31(11):1038-1040(2011)
[1]赵敏,李伟.法兰旋启式止回阀消失模铸造的实践[J].特种铸造及有色合金,2011,31(11):1038-1040. DOI：

Zhao Min, Li Wei. Production of Flange Swing Check Valve by EPC（Expendable Pattern Casting）. [J]. Special Casting & Nonferrous Alloys 31(11):1038-1040(2011) DOI：

介绍了消失模工艺生产DN300法兰旋启式止回阀阀体浇冒口系统设计

以及消失模模样制作、埋型、浇注等主要工艺参数的合理选择。珠粒预发密度为23～26kg/m3

模具成型

采用五面抽气负压砂箱

带液压夹紧机构的变频三维震实台

浇注负压控制在0.05～0.06MPa范围内

保压5min。

The production process of valve body of DN300 flange swing check valve by EPC was introduced

including gating-riser system design

pattern making

mold assembling and pouring.Bead density is 23

6 g/dm3

and molding is conducted by the tool.Meanwhile

vacuum flask was exhausted by five direction

and varied frequency plain jolter with hydraulic clamping mechanism was adopted.In addition

vacuum rate is 0.05

.06 MPa for 5 min during pouring process.

止回阀阀体消失模浇注系统设计一次球化处理

Swing Check ValveValve BodyEPCGating System DesignPrimary Spheroidization Treatment

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