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| 題 名 | 消失模型鑄造法之塗模劑製程技術研究=Study on the Coating Technology for the Evaporative Pattern Casting Process |
|---|---|
| 作 者 | 楊榮顯; 鄭金忠; | 書刊名 | 鑄造工程學刊 |
| 卷 期 | 36:4=147 2010.12[民99.12] |
| 頁 次 | 頁26-35 |
| 分類號 | 472.2 |
| 關鍵詞 | 消失模型鑄造法; 塗模劑組成; 塗模劑性質; Evaporative pattern casting process; Coating composition; Coating property; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 消失模型鑄造法屬於特殊之砂模鑄造法,而其塗模劑的使用,對鑄件品質有重大的影響,因此如何掌握塗模劑的成分及其性質,來獲得品質良好的鑄件,是值得探討的問題。本研究採用自行調製的塗模劑,來探討塗模劑組成對於塗模劑各種性質(透氣性、沾附性、常溫及高溫龜裂性)之影響,尋求出各種性質間之最佳參數組合,以建立性質優良之消失模型鑄造法用之塗模劑製造技術。根據研究結果顯示,基本型塗模劑Type Ⅱ有較佳的常溫透氣度,但在沾附性及龜裂之抵抗性方面為最差,Type Ⅰ則有優於Type Ⅲ但劣於Type Ⅱ的常溫透氣度,但有較佳的沾附性及龜裂抵抗性;為了要在此三種性質中取得一個平衡,因此再以基本型Typo Ⅱ的組成(耐火材料A)為基準,再加入耐火材料B並調整A與B的比例,來探討此變化型塗模劑組成對於塗模劑各種性質之影響,以求得一個最恰當的塗模劑組成。結果顯示,當逐漸增加耐火材料B的含量被減少耐火材料A的含量時,會使常溫透氣度有慢慢下降的趨勢,而在沾附性及龜裂抵抗性方面則分別有逐漸上升及減少的趨勢。綜合以上分析結果,變化型塗模劑Type Ⅵ的透氣度雖然只優於Type Ⅶ,但其透氣度仍高達2.6,高於預期之目標值(>0.5),而沾附性與龜裂抵抗性亦只劣於Type Ⅶ,因此對於消失模型鑄造法用塗模劑而言,變化型組成塗模劑Type Ⅵ應是最適當的塗模劑。 |
| 英文摘要 | The Evaporative Pattern Casting (EPC) process is a special casting process. The use of coating has a significant impact on the casting quality. So, mastering the coating composition and properties to obtain high quality castings is a question worth to explore.Various self-designed coatings are employed to investigate the effect of different coating composition on coating property including permeability, adhesive property, room temperature, high temperature crack property, etc. Then, optimum parameters combination among different properties will be figured out to establish better coating manufacturing technology for the EEC process.The experimental results indicate that Type Ⅱ coating has excellent room temperature permeability hat worst adhesive property and crack property. The room temperature permeability of Type Ⅰ coating is better than Type Ⅲ but worse than Type Ⅱ, but have excellent adhesive property and crack property. In order to balance among the previous three properties, the basic Type Ⅱ coating composition (refractory A) is used as the standard, then the refractory B was added and regard as the various type coatings. The effect of various type coating composition on the coating properties were investigated. The results of different composition of coating indicated that increasing the quantity of refractory A will cause the permeability declined slightly. The adhesive property will be increased and the crack resistance decreased gradually.Based on this research, the various Type Ⅵ coating is the most suitable one for the EPC process. The permeability of Type Ⅵ is as high as 2.6 (expected value >0.5). In the adhesive property and crack resistance, Type Ⅵ are the runner-up in all tested coatings. |
本系統中英文摘要資訊取自各篇刊載內容。