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關注：1
2013-05-23 12:21
求翻譯：This study consists of two stages. In the first stage, bronze-based break linings were produced and friction-wear properties of them were investigated. In the second stage 0.5%,1%,2% and 4% alumina (Al2O3) powders were added to the bronze-based powders and Al2O3 reinforced bronze-based break linings were produced. Fric是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
This study consists of two stages. In the first stage, bronze-based break linings were produced and friction-wear properties of them were investigated. In the second stage 0.5%,1%,2% and 4% alumina (Al2O3) powders were added to the bronze-based powders and Al2O3 reinforced bronze-based break linings were produced. Fric
問題補充： |
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2013-05-23 12:21:38
本研究分為兩個階段。在第一階段，休息青銅襯里和摩擦磨損性能進行了研究。在第二階段增加了0.5％，1％，2％和4％，氧化鋁（Al2O3）粉末的青銅基粉末生產和氧化鋁增強青銅休息襯里。氧化鋁鋼筋樣品的摩擦磨損性能進行了研究，并比那些純青銅為基礎的。為此，摩擦系數和磨損行為的樣品進行了測試灰鑄鐵光盤。還確定樣品的硬度和密度。樣本之前和之后的燒結和磨損試樣磨損表面的微觀結構進行了研究，利用掃描電子顯微鏡（SEM）。在350mpa樣品壓縮和燒結溫度在820℃具有最佳的摩擦磨損行為。在摩擦表面溫度上升，減少樣品的摩擦系數進行了觀
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2013-05-23 12:23:18
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2013-05-23 12:24:58
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2013-05-23 12:26:38
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2013-05-23 12:28:18
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