Study of Slurry Preparation Parameters on Wear Resistance of Aluminum-Fly Ash Composites by Die Casting Processes

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簡歷

基本資料

Project title

Code/計畫編號

NSC102-2221-E019-009

Translated Name/計畫中文名

製備漿料參數對壓鑄鋁基飛灰複合材料抗磨耗性之研究

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=3113639

Year

2013

Start date/計畫起

01-08-2013

Expected Completion/計畫迄

01-07-2014

Bugetid/研究經費

1001千元

ResearchField/研究領域

機械工程
材料科技

"鋁基－飛灰（Aluminum-Fly Ash, ALFA）複合材料具有密度低、抗磨耗性佳、阻尼性優及剛性強之特性。本計畫擬利用先期計畫建立之 ALFA 複合漿料製備的相關技術，以氣動板手之鋁合金氣缸體作為載具，研究壓鑄生產 ALFA 複合材料鑄件之相關製程參數與模具方案設計準則，進而深入探討 ALFA 鑄件之功能性及其適用範圍。提升壓鑄鋁合金高值化的目標，以符合業界的期待。在製作 ALFA 複合材料壓鑄試片時，分別篩選 20~53m、53~75m、75~106m 與 106~125m 等四種不同粒徑之飛灰，經過一系列浮選、磁選與酸洗等前置處理後，分別以 0 wt%、3 wt%、6 wt%、9 wt%與 12 wt%等五種不同比例，將預熱至 700oC 的飛灰以適當流量添加至鋁基熔湯中，再以機械攪拌製備 ALFA 複合漿料，最後以壓鑄成形鑄件。針對抗磨耗能力與機械性質，此類 ALFA 複合材料鑄件將與分別經化學鍍鎳、硬質陽極氧化或微弧氧化表面處理之傳統壓鑄件做比較。使用之磨耗試驗係依據 ASTM D3702 規範，採用面磨耗（ring-on-disk）形式；而拉伸試驗則是依據 ASTM E8 規範，採用 3 噸的拉伸試驗機進行。本計畫預期建立完整的壓鑄 ALFA 複合材料鑄件生產技術，包括模具方案設計與製程參數，並針對不同飛灰添加比例與不同飛灰粒徑，對 ALFA 複合材料壓鑄件之抗磨耗能力與機械性質予以量化，有助後續 ALFA 複合材料之技術移轉及產品開發。 " "Aluminum-Fly Ash (ALFA) composites possess characteristics, such as low density, superior wear resistance, good damping ability, and high stiffness. This project is to utilize the technology preparing the ALFA composite slurry, which has been developed in the previous studies. The aluminum cylinder body in an air wrench is selected as an example to study the process parameters and die design guides for manufacturing ALFA composite castings. Then, the functionality and application scopes of ALFA composite casting are to be investigated in depth. The value of aluminum die castings could be promoted to fit in with the expectation of die casters. In manufacturing die casting specimen of ALFA composite, the fly ashes are sieved to four different particle sizes, namely 20~53m, 53~75m, 75~106m and 106~125m. After pre-processing of a series of flotation, magnetic separation, and pickling, the sieved fly ashes are preheated to 700oC and dosed into the aluminum melt with an appropriate flow rate, respectively, at 0 wt%, 3 wt%, 6 wt%, 9 wt% and 12 wt%, Then, ALFA composite slurry is prepared by mechanical stirring. Finally, castings are formed by die casting processes. With respect to wear resistance and mechanical properties, ALFA composite castings are in comparison with those plain die castings with surface treatment of chemically nickel plated, hard anodizing or micro-arc oxidation. The wear test conducted in this work is based on ASTM D3702 specification under the use of surface wear form as “ring-on-disk”; and then the tensile test will be done according to the specification of ASTM E8 with 3 tons of tensile testing machine. This project is expected to create a complete die casting production technology of ALFA composite castings, including gating system design and process parameters. For fly ashes in different dosing rates and with different particle sizes, wear resistance and mechanical properties of ALFA composite castings are quantified after systematic analyses. This would make for subsequent technology transfer and product development of ALFA composite to industrial applications. "

Keyword(s)

鋁基－飛灰複合材料
抗磨耗性
氣動板手
壓鑄
aluminum-fly ash composite
wear resistance
air wrench
die casting process

DSpace CRIS

Study of Slurry Preparation Parameters on Wear Resistance of Aluminum-Fly Ash Composites by Die Casting Processes

基本資料

Description