Development on Key Technology of Mass Production of Aluminun-Fly Ash Composite Die Casting Processing

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Project title

Code/計畫編號

NSC101-2221-E019-024

Translated Name/計畫中文名

飛灰鋁基複合材料壓鑄量產關鍵技術之開發

Project Coordinator/計畫主持人

Shuei-Wan Juang

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Mechanical and Mechatronic Engineering

Website

https://www.grb.gov.tw/search/planDetail?id=2582014

Year

2013

Start date/計畫起

01-08-2012

Expected Completion/計畫迄

01-07-2013

Bugetid/研究經費

947千元

ResearchField/研究領域

機械工程
環境科學
材料科技

"鋁基-飛灰（Aluminum-Fly Ash, ALFA）複合材料，能有效提升原材料之抗磨耗性、阻尼性、剛性及具有輕量化之成效，於工業上之應用極具前瞻性之潛力，然而至今尚未發展出適合大量生產且具商業化之製程技術。為突破壓鑄ALFA 複合材料量產技術之瓶頸，及時供應壓鑄生產所需之複合漿料乃是ALFA 複合材料壓鑄量產之關鍵技術所在。本計畫旨在開發一套「快速混和複合漿料批次供給系統」，將每一模次所需之複合漿料於獨立坩鍋內快速攪拌完成，有效控制複合漿料所含的飛灰比例及其均勻性，直接供給壓鑄生產之用，確保產出鑄件的品質穩定。由於飛灰顆粒與鋁基合金係以化學反應方式結合，為配合製程快速攪拌混和，即需提升液、固兩相材料之化學反應速率。本研究將針對前兩年有關飛灰前處理方法、鋁基合金成分之影響、攪拌系統設計、製程條件等累積的研究成果予以整合，進行製程混和效率參數最佳化的設計，以突破現行壓鑄量產技術之瓶頸。本研究藉著「快速混和複合漿料批次供給系統」之開發完成，預期可獲得飛灰與鋁基材快速化學反應之機制、攪拌系統的最佳化設計、製程條件的最佳化參數、創新設備之開發、及壓鑄量產鑄件之機械性質等進一步的研究成果。" "Aluminum-Fly Ash (ALFA) composites, possessing effects of lightweight, could effectively improve the wear resistance, damping capacity and rigidity of base materials and might own highly prospective potential for industrial applications. However, the process technology with commercialization for mass production has not developed yet. To surmount the technology bottleneck of diecasting ALFA composites, the critical event is to timely feed the mixed composite slurry necessitated for diecasting processes. The project objective is to develop a batch feeding system to promptly mixing composite slurry, prepared by quick stirring for each shot in an independent crucible. Then, the composite slurry with effective control on adding percentage and uniform distribution of fly ash particles inside the base metal is directly fed for diecasting to make sure quality consistency of casting parts. Because the bonding between fly ash and aluminum-base alloys is through a chemical reaction, its reaction rate between solid/liquid phases must be increased to fit the process requirements with quick mixing by stir. In this study, the accumulated achievements, obtained from last two-year study, on pre-treatment of fly ash, effect of alloying elements on bonding, design of stirring system, working conditions for diecasting processes will be integrated as a consolidated base and propose an optimum design with effective mixing parameters to penetrate current chokes on mass production technology of diecasting processes. Upon finishing the development of a batch feeding system to promptly mixing composite slurry from this study, the quick chemical reaction mechanism between fly ash particles and aluminum-base alloys, optimum design of stirring system, optimum parameters of diecasting processes, development of innovative equipment, and mechanical properties of diecastings by mass production are expected to be created in this study."

Keyword(s)

飛灰
鋁基複合材料
攪拌鑄造
壓鑄
fly ash
aluminum-base composite
stirring casting
diecasting processes

DSpace CRIS

Development on Key Technology of Mass Production of Aluminun-Fly Ash Composite Die Casting Processing

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