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5454鋁合金鈦及鎳基合金-其它合金
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.block-content-new-icon{height:7px;left:52px;position:absolute;top:3px}網(wǎng)頁新聞貼吧知道網(wǎng)盤圖片視頻地圖文庫資訊采購百科百度首頁登錄注冊進(jìn)入詞條全站搜索幫助首頁秒懂百科特色百科知識專題加入百科百科團隊權(quán)威合作個人中心收藏查看我的收藏0有用+10播報討論上傳視頻Al-Mg系防銹鋁合金，用于汽車車輪制造是Al-Mg系防銹鋁合金，相較于5052鋁合金強度提升約20%，具備優(yōu)異的抗腐蝕性，尤其在惡劣環(huán)境下性能優(yōu)于5154合金。該材料通過六輥冷軋工藝生產(chǎn)，具有版型平整、切邊整齊等特點，其規(guī)?；a(chǎn)線保障了焊接斜紋傾向低、硬脆化合物少等特性。作為汽車輕量化關(guān)鍵材料，憑借密度低、抗拉強度大（≥215MPa）、延伸率優(yōu)良（δ10≥10%）等特性，顯著降低車輪重量并提升燃油效率。自20世紀(jì)70年代工業(yè)化應(yīng)用以來，該合金在汽車車輪制造中兼顧抗腐蝕需求與復(fù)雜成型加工要求，同時擴展應(yīng)用于船舶管道、壓力容器等領(lǐng)域 [1-2]。材料類型Al-Mg系防銹鋁合金標(biāo) 準(zhǔn)GB/T 4437.1-2000材料名稱鋁及鋁合金熱擠壓無縫圓管牌 號5454密 度2.68g/cm3抗拉強度≥215MPa屈服強度≥85MPa延伸率δ10≥10%應(yīng)用領(lǐng)域汽車車輪、船舶構(gòu)件目錄1材料特性2生產(chǎn)工藝3汽車車輪應(yīng)用4其他工業(yè)應(yīng)用材料特性播報編輯主要成分為鎂（2.4-3.0%）、錳（0.5-1.0%）及微量鉻、鈦，不可熱處理強化，需通過冷加工提升強度。其彈性模量達(dá)69.6GPa [2]，在室溫下延伸率最高可達(dá)25%，焊接性能與疲勞強度優(yōu)異。該合金耐腐蝕性能覆蓋四類環(huán)境：抗工業(yè)腐蝕：耐受酸雨、工業(yè)廢水侵蝕抗高溫腐蝕：適用于船舶構(gòu)造、壓力容器等場景生產(chǎn)工藝播報編輯采用"1+1"生產(chǎn)線實現(xiàn)規(guī)模化制造，關(guān)鍵工藝包括：熔煉技術(shù)：嚴(yán)格控制鎂含量波動范圍六輥冷軋工藝：保障厚度精度達(dá)0.2-4.5mm熱處理：退火溫度343℃，熱加工溫度260-510℃ [2]表面處理：陽極氧化提升耐磨性與耐蝕性明泰鋁業(yè)等廠商通過優(yōu)化軋制參數(shù)，使產(chǎn)品性能提升，切邊整齊度達(dá)到±0.1mm級別。汽車車輪應(yīng)用播報編輯1980年代中期我國開始研發(fā)該材料車輪制造技術(shù)，其技術(shù)密集性體現(xiàn)在：模具鑄造：采用低壓鑄造工藝降低孔隙率精密加工：輪轂徑向跳動量控制在0.3mm內(nèi)涂裝檢測：鹽霧試驗時間≥1000小時與鋼制車輪相比，使用可減重30%-40%，降低滾動阻力。在高速行駛工況下，其疲勞強度達(dá)到10^7次循環(huán)荷載無裂紋。其他工業(yè)應(yīng)用播報編輯交通運輸：軌道交通車體板材長度可達(dá)16000mm，油罐車筒體使用材料壓力容器：工作壓力范圍0.6-6.4MPa [2]南車青島四方公司采用該合金制造軌道交通車輛車體結(jié)構(gòu)件，使整車減重1.2噸，驗證了其綜合性能優(yōu)勢。新手上路成長任務(wù)編輯入門編輯規(guī)則本人編輯我有疑問內(nèi)容質(zhì)疑在線客服官方貼吧意見反饋投訴建議舉報不良信息未通過詞條申訴投訴侵權(quán)信息封禁查詢與解封?2025?Baidu?使用百度前必讀?|?百科協(xié)議?|?隱私政策?|?百度百科合作平臺?|?京ICP證030173號?京公網(wǎng)安備11000002000001號window.PAGE_DATA= 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說明： 5454防銹鋁強度比5052約高20%，其特性與5154大致相同，但在惡烈環(huán)境下之耐蝕性比5154良好。 應(yīng)用于汽車用車輪?；瘜W(xué)成分： 鋁 Al ：余量硅 Si ：≤0.25銅 Cu ：≤0.10鎂 Mg：2.4～3.0鋅 Zn：≤0.25錳 Mn：0.50～1.0鈦 Ti ：≤0.20鉻 Cr：0.05～0.20鐵 Fe： 0.000～ 0.400注：單個:≤0.05;合計:≤0.15
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