Venting structure for a casting mold
CN224687871UActive Publication Date: 2026-08-28ALUMI (WUXI) CO LTD
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Patent Information
- Application Number
- CN202522058678.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-09-24
AI Technical Summary
Technical Problem
[0003]然而，在金属液填充型腔的过程中，砂芯内部含有的粘结剂及其他有机物成分，会因受热而分解释放出大量气体，随着金属液的不断填充，气体极易被金属液包裹无法及时排出，从而使得生产的壳体表面形成气孔等质量缺陷，降低了壳体的成品质量，存在明显不足
Benefits of technology
本申请通过在砂芯上设置排气柱，在壳体铸造的过程中，排气柱因自身占位使得壳体上形成有排气孔，当受到高温影响产生气体时，气体随着金属液的流动向靠近浇道出口的区域聚集，并最终通过排气孔引导排出型腔，如此降低了气体在金属液内部持续积累的可能，进而减少壳体成型后气孔等缺陷，从而提高了壳体产品的质量；
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Figure CN224687871U_ABST
Abstract
The application relates to a casting mold vent structure which comprises a core box, a cavity and a sprue are arranged in the core box, a sprue cup is arranged on the upper end surface of the core box and communicates with the sprue, a sand core is arranged in the cavity, a venting column is arranged on the surface of the sand core close to the outlet of the sprue, and the venting column is used for forming a vent hole on the shell. The application has the effect of improving the quality of the shell product.
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