一种无内部缺陷的差壳迪砂线铸造型腔结构
By optimizing the casting cavity structure and adopting a two-piece integrated sand core and precise riser layout, the problem of casting defects in traditional poor-shell production has been solved, achieving efficient and high-quality poor-shell production, and improving process yield and product competitiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 山东汇金股份有限公司
- Filing Date
- 2024-06-13
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional differential shell production methods make it difficult to achieve ideal sequential solidification, resulting in defects such as dispersed shrinkage porosity and shrinkage cavities at the junction of the flange and cylindrical surface of the casting. This leads to low process yield and difficult cleaning, making it difficult to meet the demand for high-quality products.
The design adopts a two-piece integrated sand core, combining the pouring cup, choke block, vertical runner, branch horizontal runner and ingate of the counter pressure plate and positive pressure plate, and optimizes the riser layout to ensure that molten iron is uniformly introduced into the casting. Sequential solidification is achieved by injecting molten iron from the bottom, and a riser is added below the flange to collect gas and impurities during the solidification process.
It significantly reduced internal defects in castings, improved casting quality and process yield, simplified operating procedures, reduced grinding workload, increased production efficiency and economic benefits, and met the requirements of high-standard products.
Smart Images
Figure CN118650121B_ABST