摘要
In order to improve the performance operation for various aluminum castings, a multi-functional counter-gravity casting device for aluminum alloy was developed. Key structure of the device consists of two sealed-in jar, i. e. the upper jar and the nether one, in which fuzzy algorithm treated integral-separated PID is taken as control project of the control system, and combined valve controlled by digital signal is adopted as the executive unites of the pneumatic system. Three counter-gravity castings methods including lowpressure casting, differential-pressure casting and vacuum- assisted pressure casting can be accomplished by combining the control system with the main body of equipment, improving the practicability of the countergravity casting equipment.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 33-35 |
| 页数 | 3 |
| 期刊 | Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys |
| 卷 | 29 |
| 期 | 1 |
| DOI | |
| 出版状态 | 已出版 - 1月 2009 |