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停機坪資訊 / Information

鋁合金直升機甲板結構材料

鋁合金結構資料


1鋁合金直升機甲板結構的正常使用環境溫度應低于100℃


2用于承重結構的鋁合金宜選用軋制板、冷軋帯、拉制管、擠壓管、擠壓型材、棒材等鍛造鋁合金


3應根據結構的重要性、載荷特征、結構形式、應力狀態、銜接方法、資料厚度等因素,選用適宜的鋁合金商標、規范及相應狀態


4鋁合金結構資料的選用應契合G1B50429-2007的要求.型材宜選用該規范規定的JXXX系列和6XXX系列鋁合金;板材宜選用3XXX系列和5XXX系列鋁合金


5選用焊接鋁合金結構時,應考慮熱影響區資料強度降低帶來的晦氣影響。在銜接核算中.應對焊件強度進行折減。在構件承線力核算中,應對截伐面進行折減


6鋁合金資料強度核算應契合GB504129-2007的要求


鋼材和鋁材的銜接


1在甲板上浪區域.在鋼材和鋁材之間使用防水資料以防止電化學腐蝕。


2銜接用螺釘和螺母應選用不銹鋼原料,資料性能為A4或與其等效


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