小型履帶變軌吊裝車用碳纖維復材制備工藝優化

摘 要：為了提升小型履帶變軌吊裝搬運車用碳纖維復合材料的力學性能，采用不同的陽極氧化工藝對2024鋁合金進行了預處理，對比分析了不同陽極氧化工藝下碳纖維復合材料的力學性能。結果表明，彎曲強度從高至低順序為陽極氧化工藝D、陽極氧化工藝C、陽極氧化工藝B、陽極氧化工藝A；剪切強度從高至低順序為陽極氧化工藝C、陽極氧化工藝B、陽極氧化工藝D、陽極氧化工藝A；沖擊強度從高至低順序為陽極氧化工藝C、陽極氧化工藝D、陽極氧化工藝B、陽極氧化工藝A。適宜的工藝為陽極氧化工藝C，此時鋁合金表面氧化孔均勻、孔徑適宜。

關鍵詞：碳纖維復合材料；2024鋁合金；陽極氧化工藝；力學性能；表面形貌

中圖分類號：TQ342 + .742 文獻標志碼：A 文章編號：1001-5922（2024）11-0085-03

Optimization of the preparation process of carbon fibercomposite materials for small crawler rail

change hoisting vehicles

LU Zheng，WANG Li，DENG Wenjun，LU Wenqin，CHAO Jiajun，LU Rui

（State Grid Jiangsu Electric Power Co.，Ltd.，Changzhou Power Supply Branch，Changzhou 213000，Jiangsu China）

Abstract：In order to improve the mechanical properties of carbon fiber composites used in small crawler trackchange lifting truck，2024 aluminum alloy was pretreated by different anodic oxidation processes，and the mechani?cal properties of carbon fiber composites under different anodizing processes were compared and analyzed. The re?sults showed that the order of bending strength from high to low was：anodic oxidation process Dgt;anodic oxidationprocess Cgt;anodic oxidation process Bgt;anodic oxidation process A，the order of shear strength from high to low was：anodic oxidation process Cgt;anodic oxidation process Bgt;anodic oxidation process Dgt;anodic oxidation process A，and the order of impact strength from high to low was：anodic oxidation process Cgt;anodic oxidation process Dgt;anod?ic oxidation process Bgt;anodic oxidation process A. The appropriate process was anodic oxidation process C，at thistime the oxide pores on the surface of the aluminum alloy were uniform and the pore size was suitable.

Key words：carbon fiber composite materials；2024 aluminum alloy；anodizing process；mechanical properties；sur?face topography

由于便捷式發展需求，目前的小型履帶變軌吊裝搬運車用材除了需要輕質外，還需要具有較高的力學性能，如剪切強度、彎曲強度和沖擊強度等 [1] ，以便于不同的應力場合使用。目前的小型履帶變軌吊裝搬運車主要采用鋼質結構，而新一代小型履帶變軌吊裝搬運車則主要朝著高強輕質方向發展，潛在的應用材料為碳纖維金屬層板，這方面的研究報道較少 [2] 。本文擬以碳纖維、2024鋁合金和PA6尼龍為原料，采用不同陽極氧化工藝對鋁合金進行表面處理并制備了復合材料，考察了不同陽極氧化工藝下碳纖維復合材料的力學性能和斷口形貌，結果有助于高綜合性能的小型履帶變軌吊裝搬運車用材的開發與推廣應用。……