{"id":8426,"date":"2025-03-31T12:29:56","date_gmt":"2025-03-31T12:29:56","guid":{"rendered":"https:\/\/premiumalu.com\/expert-tips-for-success-with-2618-alloy-aluminum\/"},"modified":"2026-07-27T12:39:29","modified_gmt":"2026-07-27T12:39:29","slug":"conseils-dexperts-pour-reussir-avec-lalliage-daluminium-2618","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/fr\/expert-tips-for-success-with-2618-alloy-aluminum\/","title":{"rendered":"Ma\u00eetriser l'alliage d'aluminium 2618 : Conseils d'experts pour r\u00e9ussir"},"content":{"rendered":"

Introduction<\/h2>\n
\"Aper\u00e7u<\/figure>\n

Alliage d'aluminium 2618<\/a> \u662f\u53ef\u901a\u8fc7\u70ed\u5904\u7406\u5f3a\u5316\u76842xxx\u7cfb\u53d8\u5f62\u94dd\u5408\u91d1\uff0c\u4e13\u4e3a\u9ad8\u6e29\u5e94\u7528\u800c\u8bbe\u8ba1\u3002\u4ee5\u94dc\u3001\u9541\u548c\u954d\u4e3a\u4e3b\u8981\u5408\u91d1\u5143\u7d20\uff0c2618\u5728\u9ad8\u8fbe\u7ea6200\u00b0C\u7684\u6e29\u5ea6\u4e0b\u4ecd\u80fd\u4fdd\u6301\u4f18\u5f02\u7684\u5f3a\u5ea6\u3002\u5b83\u8fd8\u5728\u6301\u7eed\u70ed\u8f7d\u8377\u4e0b\u5c55\u73b0\u51fa\u5f3a\u5927\u7684\u6297\u75b2\u52b3\u6027\u80fd\u548c\u826f\u597d\u7684\u6297\u8815\u53d8\u80fd\u529b\u3002.<\/p>\n

\u8fd9\u4e9b\u7279\u6027\u4f7f2618\u6210\u4e3a\u822a\u7a7a\u822a\u5929\u53d1\u52a8\u673a\u90e8\u4ef6\u3001\u9ad8\u6027\u80fd\u6d3b\u585e\u3001\u538b\u6c14\u673a\u53f6\u8f6e\u548c\u6da1\u8f6e\u96f6\u4ef6\u7684\u9996\u9009\u6750\u6599\uff0c\u5728\u8fd9\u4e9b\u5e94\u7528\u4e2d\u70ed\u7a33\u5b9a\u6027\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u6db5\u76d6\u8be5\u5408\u91d1\u7684\u5316\u5b66\u6210\u5206\u3001\u673a\u68b0\u6027\u80fd\u3001\u5b9e\u9645\u5e94\u7528\uff0c\u4ee5\u53ca\u5176\u4e0e2024\u30014032\u30016061\u548c7075\u7b49\u5176\u4ed6\u94dd\u5408\u53f7\u7684\u5bf9\u6bd4\u3002.<\/p>\n

Qu'est-ce que l'alliage d'aluminium 2618 ?<\/h2>\n
\"Composition<\/figure>\n

2618\u94dd\u5408\u91d1\u5c5e\u4e8e\u53ef\u70ed\u5904\u7406\u5f3a\u5316\u7684\u53d8\u5f62\u94dd\u5408\u91d1\u5bb6\u65cf\uff0c\u4ee5\u5176\u5728\u9ad8\u6e29\u4e0b\u4fdd\u6301\u5f3a\u5ea6\u7684\u80fd\u529b\u800c\u8457\u79f0\u3002\u5176\u9ad8\u6e29\u5f3a\u5ea6\u3001\u6297\u75b2\u52b3\u6027\u80fd\u548c\u53ef\u52a0\u5de5\u6027\u7684\u7ec4\u5408\uff0c\u4f7f\u5176\u9002\u7528\u4e8e\u822a\u7a7a\u822a\u5929\u548c\u8d5b\u8f66\u8fd0\u52a8\u4e2d\u7684\u4e25\u82db\u5e94\u7528\u3002.<\/p>\n

\u8be5\u5408\u91d1\u7684\u6210\u5206\u2014\u2014\u4e3b\u8981\u4e3a\u94dd\uff0c\u5e76\u542b\u6709\u94dc\u3001\u9541\u548c\u954d\u2014\u2014\u76f4\u63a5\u4fc3\u6210\u4e86\u5176\u70ed\u7a33\u5b9a\u6027\u3002\u8fd9\u4f7f\u5f972618\u5728\u90e8\u4ef6\u5fc5\u987b\u5728\u53cd\u590d\u70ed\u5faa\u73af\u548c\u673a\u68b0\u5e94\u529b\u4e0b\u4fdd\u6301\u7ed3\u6784\u5b8c\u6574\u6027\u65f6\uff0c\u6210\u4e3a\u53ef\u9760\u7684\u9009\u62e9\u3002.<\/p>\n

2618\u94dd\u7684\u5316\u5b66\u6210\u5206<\/h3>\n

2618\u94dd\u5408\u91d1\u7684\u72ec\u7279\u7279\u6027\u7531\u5176\u5316\u5b66\u6210\u5206\u51b3\u5b9a\u3002\u4ee5\u4e0b\u662f\u5173\u952e\u5408\u91d1\u5143\u7d20\u7684\u8be6\u7ec6\u8bf4\u660e\uff1a<\/p>\n

\n\n\n\n\n\n\n\n
\u00c9l\u00e9ment<\/th>\nComposition Pourcentage<\/th>\nR\u00f4le<\/th>\n<\/tr>\n
Aluminium<\/td>\n~90%<\/td>\nMat\u00e9riau de base<\/td>\n<\/tr>\n
Cuivre<\/td>\n2-3%<\/td>\nAm\u00e9liore la r\u00e9sistance, en particulier apr\u00e8s un traitement thermique<\/td>\n<\/tr>\n
Magn\u00e9sium<\/td>\n1.2-1.8%<\/td>\n\u4e0e\u94dc\u534f\u540c\u4f5c\u7528\uff0c\u8fdb\u4e00\u6b65\u589e\u5f3a\u5408\u91d1\u5f3a\u5ea6<\/td>\n<\/tr>\n
Nickel<\/td>\n1.2-1.8%<\/td>\n\u6539\u5584\u9ad8\u6e29\u6027\u80fd\u548c\u70ed\u7a33\u5b9a\u6027<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u8fd9\u4e9b\u5408\u91d1\u5143\u7d20\u5728\u751f\u4ea7\u8fc7\u7a0b\u4e2d\u7ecf\u8fc7\u4e25\u683c\u63a7\u5236\uff0c\u4f7f2618\u80fd\u591f\u6ee1\u8db3\u822a\u7a7a\u822a\u5929\u548c\u9ad8\u6027\u80fd\u884c\u4e1a\u5bf9\u70ed\u7a33\u5b9a\u6027\u81f3\u5173\u91cd\u8981\u7684\u4e25\u683c\u6807\u51c6\u3002.<\/p>\n

\u5173\u952e\u7269\u7406\u548c\u673a\u68b0\u6027\u80fd<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n
Propri\u00e9t\u00e9<\/strong><\/th>\nValeur<\/strong><\/th>\nCe que cela signifie<\/strong><\/th>\n<\/tr>\n
Densit\u00e9<\/strong><\/td>\n2,75 g\/cm\u00b3<\/td>\n\u8f7b\u8d28\uff0c\u9002\u7528\u4e8e\u9ad8\u5f3a\u5ea6\u5e94\u7528<\/td>\n<\/tr>\n
Point de fusion<\/strong><\/td>\n~550-640\u00b0C (1 022-1 184\u00b0F)<\/td>\n\u51dd\u56fa\u8303\u56f4\u5bbd\uff0c\u9002\u5408\u70ed\u52a0\u5de5<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction<\/strong><\/td>\n~420-450 MPa (T6)<\/td>\n\u9ad8\u5f3a\u5ea6\uff0c\u9002\u7528\u4e8e\u4e25\u82db\u7684\u7ed3\u6784\u5e94\u7528<\/td>\n<\/tr>\n
Limite d'\u00e9lasticit\u00e9<\/strong><\/td>\n~350-380 MPa (T6)<\/td>\nBonne r\u00e9sistance \u00e0 la d\u00e9formation permanente<\/td>\n<\/tr>\n
\u00c9longation<\/strong><\/td>\n~5-10%<\/td>\n\u4e2d\u7b49\u5ef6\u5c55\u6027<\/td>\n<\/tr>\n
Duret\u00e9<\/strong><\/td>\n~120-130 HB (Brinell, T6)<\/td>\n\u826f\u597d\u7684\u8868\u9762\u786c\u5ea6\uff0c\u5177\u6709\u8010\u78e8\u6027<\/td>\n<\/tr>\n
Conductivit\u00e9 thermique<\/strong><\/td>\n~140-155 W\/m-K<\/td>\n\u826f\u597d\u7684\u4f20\u70ed\u80fd\u529b<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la fatigue<\/strong><\/td>\n~150-180 MPa<\/td>\n\u5bf9\u5faa\u73af\u8f7d\u8377\u5177\u6709\u5f3a\u62b5\u6297\u529b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

2618\u94dd\u5408\u91d1\u5728\u4e2d\u7b49\u91cd\u91cf\u3001\u9ad8\u5f3a\u5ea6\u548c\u70ed\u7a33\u5b9a\u6027\u4e4b\u95f4\u5b9e\u73b0\u4e86\u5747\u8861\u7ec4\u5408\u3002\u5176\u4f4e\u5bc6\u5ea6\u6709\u52a9\u4e8e\u964d\u4f4e\u90e8\u4ef6\u91cd\u91cf\uff0c\u800c\u9ad8\u7194\u5316\u8303\u56f4\u4f7f\u5176\u80fd\u591f\u5728\u53d1\u52a8\u673a\u8231\u7b49\u9ad8\u6e29\u73af\u5883\u4e2d\u53ef\u9760\u8fd0\u884c\u3002T6\u72b6\u6001\u4e0b\u7684\u6297\u62c9\u5f3a\u5ea6\u4e3a420\u2013450 MPa\uff0c\u75b2\u52b3\u5f3a\u5ea6\u4e3a150\u2013180 MPa\uff0c\u4f7f\u5176\u6210\u4e3a\u627f\u53d7\u53cd\u590d\u5e94\u529b\u90e8\u4ef6\uff08\u5982\u6d3b\u585e\u548c\u538b\u6c14\u673a\u53f6\u8f6e\uff09\u7684\u53ef\u9760\u9009\u62e9\u3002.<\/p>\n

Avantages et limites de l'alliage d'aluminium 2618<\/h3>\n
\n\n\n\n\n\n\n\n\n
Avantages<\/strong><\/th>\nLimites<\/strong><\/th>\n<\/tr>\n
Haute r\u00e9sistance \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es<\/td>\n\u4e0e6xxx\u548c5xxx\u5408\u91d1\u76f8\u6bd4\uff0c\u8010\u8150\u8680\u6027\u8f83\u4f4e<\/td>\n<\/tr>\n
Bonne r\u00e9sistance \u00e0 la fatigue<\/td>\nCo\u00fbt plus \u00e9lev\u00e9 que celui des alliages \u00e0 usage g\u00e9n\u00e9ral<\/td>\n<\/tr>\n
Traitement thermique pour am\u00e9liorer les propri\u00e9t\u00e9s<\/td>\n\u6613\u53d1\u751f\u5e94\u529b\u8150\u8680\u5f00\u88c2<\/td>\n<\/tr>\n
\u70ed\u5904\u7406\u72b6\u6001\u4e0b\u5177\u6709\u826f\u597d\u7684\u53ef\u52a0\u5de5\u6027<\/td>\nFormabilit\u00e9 \u00e0 froid limit\u00e9e<\/td>\n<\/tr>\n
\u53ef\u901a\u8fc7\u7279\u5b9a\u6280\u672f\u8fdb\u884c\u710a\u63a5<\/td>\n\u5728\u8150\u8680\u6027\u73af\u5883\u4e2d\u9700\u8981\u4fdd\u62a4\u6d82\u5c42<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Applications pratiques de l'alliage d'aluminium 2618<\/h2>\n
\"Composants<\/figure>\n

2618\u94dd\u5408\u91d1\u56e0\u5176\u9ad8\u6bd4\u5f3a\u5ea6\u548c\u9ad8\u6e29\u5ea6\u6027\u80fd\u800c\u5728\u822a\u7a7a\u822a\u5929\u548c\u8d5b\u8f66\u8fd0\u52a8\u9886\u57df\u5907\u53d7\u63a8\u5d07\u3002\u8be5\u5408\u91d1\u7684\u627f\u8f7d\u80fd\u529b\u548c\u6297\u75b2\u52b3\u6027\u80fd\u4f7f\u5176\u6210\u4e3a\u6d3b\u585e\u3001\u953b\u4ef6\u548c\u7ed3\u6784\u53d1\u52a8\u673a\u90e8\u4ef6\u7684\u7406\u60f3\u9009\u62e9\uff0c\u8fd9\u4e9b\u90e8\u4ef6\u5728\u6781\u7aef\u6761\u4ef6\u4e0b\u7684\u53ef\u9760\u6027\u4e0d\u5bb9\u59a5\u534f\u3002.<\/p>\n

A\u00e9rospatiale et sports m\u00e9caniques<\/h3>\n

\u5728\u822a\u7a7a\u822a\u5929\u9886\u57df\uff0c2618\u94dd\u7528\u4e8e\u5236\u9020\u98de\u673a\u53d1\u52a8\u673a\u90e8\u4ef6\u3001\u673a\u8eab\u7ec4\u4ef6\u548c\u673a\u7ffc\u7ed3\u6784\u3002\u5176\u5728\u9ad8\u6e29\u4e0b\u4fdd\u6301\u5f3a\u5ea6\u7684\u80fd\u529b\u5bf9\u4e8e\u55b7\u6c14\u53d1\u52a8\u673a\u73af\u5883\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u90e8\u4ef6\u5728\u8fd9\u4e9b\u73af\u5883\u4e2d\u627f\u53d7\u6301\u7eed\u7684\u70ed\u5e94\u529b\u548c\u673a\u68b0\u5e94\u529b\u3002.<\/p>\n

\u75312618\u5236\u6210\u7684\u6d3b\u585e\u548c\u538b\u6c14\u673a\u53f6\u8f6e\u5728\u9ad8\u6e29\u8fd0\u884c\u671f\u95f4\u4fdd\u6301\u5176\u5f62\u72b6\u548c\u5f3a\u5ea6\uff0c\u5e2e\u52a9\u53d1\u52a8\u673a\u5728\u66f4\u957f\u7684\u7ef4\u62a4\u95f4\u9694\u5185\u53ef\u9760\u8fd0\u884c\u3002.<\/p>\n

\u8d5b\u8f66\u8fd0\u52a8\u884c\u4e1a\u4e5f\u4f9d\u8d562618\u5236\u9020\u8d5b\u8f66\u53d1\u52a8\u673a\u6d3b\u585e\u548c\u90e8\u4ef6\u3002\u8be5\u5408\u91d1\u7684\u9ad8\u6e29\u6297\u529b\u548c\u75b2\u52b3\u5f3a\u5ea6\u4f7f\u90e8\u4ef6\u80fd\u591f\u627f\u53d7\u9ad8\u8f6c\u901f\u8d5b\u8f66\u73af\u5883\u4e2d\u7684\u4e25\u9177\u6761\u4ef6\u3002.<\/p>\n

\u5bf9\u6bd4\uff1a2618\u4e0e\u5176\u4ed6\u94dd\u5408\u91d1<\/h2>\n

\u867d\u71362618\u94dd\u5408\u91d1\u5728\u9ad8\u6e29\u5e94\u7528\u4e2d\u8868\u73b0\u51fa\u8272\uff0c\u4f46\u9009\u62e9\u6b63\u786e\u7684\u6750\u6599\u53d6\u51b3\u4e8e\u5177\u4f53\u7684\u5f3a\u5ea6\u3001\u6210\u5f62\u6027\u3001\u8010\u8150\u8680\u6027\u548c\u6210\u672c\u8981\u6c42\u3002\u5c062618\u4e0e\u5176\u4ed6\u5e38\u89c1\u5408\u91d1\u8fdb\u884c\u6bd4\u8f83\uff0c\u6709\u52a9\u4e8e\u5de5\u7a0b\u5e08\u505a\u51fa\u660e\u667a\u7684\u6750\u6599\u9009\u62e9\u3002.<\/p>\n

2618\u4e0e4032\u30016061\u548c7075\u94dd\u7684\u5bf9\u6bd4<\/h3>\n
\"Comparaison<\/figure>\n

\u8fd9\u4e9b\u5408\u91d1\u4e2d\u7684\u6bcf\u4e00\u79cd\u90fd\u6839\u636e\u5176\u673a\u68b0\u6027\u80fd\u548c\u9884\u671f\u5e94\u7528\u63d0\u4f9b\u72ec\u7279\u7684\u4f18\u52bf\uff1a<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Caract\u00e9ristique<\/strong><\/th>\n2618 Aluminium<\/strong><\/th>\n4032 Aluminium<\/strong><\/th>\nAluminium 6061<\/strong><\/th>\nAluminium 7075<\/strong><\/th>\n<\/tr>\n
\u00c9l\u00e9ments d'alliage primaire<\/strong><\/td>\n\u94dc\u3001\u9541\u3001\u954d<\/td>\nCu, Mg, Si<\/td>\nMg, Si<\/td>\nZn, Cu, Mg<\/td>\n<\/tr>\n
Densit\u00e9 (g\/cm\u00b3)<\/strong><\/td>\n~2.77<\/td>\n~2.69<\/td>\n~2.70<\/td>\n~2.81<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la traction (MPa)<\/strong><\/td>\n~440 (temp\u00e9rament T6)<\/td>\n~380 (temp\u00e9rament T6)<\/td>\n~310 (temp\u00e9rament T6)<\/td>\n~570 (temp\u00e9rament T6)<\/td>\n<\/tr>\n
Limite d'\u00e9lasticit\u00e9 (MPa)<\/strong><\/td>\n~370 (temp\u00e9rament T6)<\/td>\n~315 (temp\u00e9rament T6)<\/td>\n~275 (temp\u00e9rament T6)<\/td>\n~505 (T6)<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la chaleur<\/strong><\/td>\nExcellent (jusqu'\u00e0 ~200\u00b0C)<\/td>\nBon (jusqu'\u00e0 ~150\u00b0C)<\/td>\nMod\u00e9r\u00e9 (jusqu'\u00e0 ~150\u00b0C)<\/td>\nMod\u00e9r\u00e9 (jusqu'\u00e0 ~120\u00b0C)<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la corrosion<\/strong><\/td>\nMod\u00e9r\u00e9 (n\u00e9cessite des rev\u00eatements)<\/td>\nBonne (meilleure que 2618)<\/td>\nTr\u00e8s bon<\/td>\nMoyen (sensible en raison de la teneur en Cu)<\/td>\n<\/tr>\n
Usinabilit\u00e9<\/strong><\/td>\nBon<\/td>\nExcellent<\/td>\nTr\u00e8s bon<\/td>\nJuste<\/td>\n<\/tr>\n
Soudabilit\u00e9<\/strong><\/td>\nMoyen (techniques sp\u00e9ciales n\u00e9cessaires)<\/td>\nPauvre<\/td>\nExcellent<\/td>\nPauvre<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la fatigue<\/strong><\/td>\nExcellent<\/td>\nBon<\/td>\nBon<\/td>\nExcellent<\/td>\n<\/tr>\n
Co\u00fbt<\/strong><\/td>\nHaut<\/td>\nMod\u00e9r\u00e9<\/td>\nFaible<\/td>\nHaut<\/td>\n<\/tr>\n
Applications typiques<\/strong><\/td>\n\u822a\u7a7a\u822a\u5929\u53d1\u52a8\u673a\u90e8\u4ef6\u3001\u6d3b\u585e<\/td>\nPistons automobiles, composants de moteurs<\/td>\nPi\u00e8ces structurelles, usage g\u00e9n\u00e9ral<\/td>\n\u822a\u7a7a\u822a\u5929\u6846\u67b6\u3001\u9ad8\u5e94\u529b\u90e8\u4ef6<\/td>\n<\/tr>\n
Avantage principal<\/strong><\/td>\nHaute r\u00e9sistance \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es<\/td>\nR\u00e9sistance \u00e0 l'usure, faible dilatation thermique<\/td>\nPolyvalence, r\u00e9sistance \u00e0 la corrosion<\/td>\n\u4f18\u5f02\u7684\u5ba4\u6e29\u5f3a\u5ea6<\/td>\n<\/tr>\n
\u4e3b\u8981\u5c40\u9650\u6027<\/strong><\/td>\n\u8010\u8150\u8680\u6027\u8f83\u4f4e\uff0c\u6210\u672c\u8f83\u9ad8<\/td>\nFaible soudabilit\u00e9, r\u00e9sistance moyenne<\/td>\n\u6700\u5927\u5f3a\u5ea6\u8f83\u4f4e<\/td>\nMauvaise soudabilit\u00e9, probl\u00e8mes de corrosion<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

2618 aluminium<\/a> 2618\u4ee5\u5176\u9ad8\u6e29\u5f3a\u5ea6\u548c\u826f\u597d\u7684\u53ef\u52a0\u5de5\u6027\u8131\u9896\u800c\u51fa\uff0c\u975e\u5e38\u9002\u5408\u98de\u673a\u53d1\u52a8\u673a\u90e8\u4ef6\u548c\u9ad8\u6027\u80fd\u6d3b\u585e\u30024032\u56e0\u5176\u4f4e\u70ed\u81a8\u80c0\u6027\u548c\u826f\u597d\u7684\u8010\u78e8\u6027\u800c\u53d7\u5230\u53d1\u52a8\u673a\u90e8\u4ef6\u7684\u9752\u7750\u30026061\u4ee5\u5176\u591a\u529f\u80fd\u6027\u8457\u79f0\uff0c\u5e7f\u6cdb\u7528\u4e8e\u7ed3\u6784\u5e94\u7528\u30027075\u51ed\u501f\u5176\u4f18\u5f02\u7684\u5ba4\u6e29\u5f3a\u5ea6\uff0c\u53ef\u5e94\u5bf9\u9ad8\u5e94\u529b\u7ed3\u6784\u573a\u666f\u3002.<\/p>\n

\u5982\u4f55\u9009\u62e9\u5408\u91d1<\/h3>\n

\u9009\u62e9\u5408\u9002\u7684\u5408\u91d1\u2014\u20142618<\/strong>, 4032<\/strong>, 6061<\/strong>ou 7075<\/strong>\u2014\u2014\u53d6\u51b3\u4e8e\u60a8\u7684\u5177\u4f53\u5e94\u7528\u3001\u8fd0\u884c\u6761\u4ef6\u548c\u4f18\u5148\u4e8b\u9879\u3002.<\/p>\n

Facteurs cl\u00e9s \u00e0 prendre en compte<\/h4>\n