壓鑄件結(jié)構(gòu)創(chuàng)新結(jié)構(gòu)設(shè)計(jì)-在線瀏覽
2024-08-06 08:26本頁面
【正文】 性模量較低，對(duì)局部應(yīng)力集中敏感，因此在鑄造和使用中易產(chǎn)生變形和裂紋，為此在鑄件結(jié)構(gòu)設(shè)計(jì)時(shí)還應(yīng)注意：a)采用慣性矩較大的工字形、槽形和箱形截面形狀以增強(qiáng)鑄件壁。c)為避免孔的邊緣處產(chǎn)生應(yīng)_!集中應(yīng)予以加強(qiáng)，如采用凸邊加強(qiáng)。e)對(duì)于薄壁鑄件可用肋或階梯形斷面來加強(qiáng)。.不至于使較軟的鋁合金與鎂合鑄件產(chǎn)生變形，此外還可以通過采用較大的螺母墊圈來減 螵母對(duì)凸臺(tái)的壓力。一寸于薄壁殼體形的鋁合金與鎂合金鑄件，不應(yīng)具有突變的外形?！ 、捩V合金的壓縮強(qiáng)度比抗拉強(qiáng)度高，因此設(shè)計(jì)鎂合金鑄件結(jié)構(gòu)時(shí)，應(yīng)采用不對(duì)稱的截面和匣其承受壓應(yīng)力。： 為避免防蝕的漆層被破壞，鑄件上不應(yīng)有尖角等。18產(chǎn)品名稱：螺栓標(biāo)準(zhǔn)扭矩及預(yù)緊力速查表 ●返回上層 內(nèi)六角外六角螺栓直徑DIN267性能等級(jí)(螺栓強(qiáng)度等級(jí))螺 栓螺 栓S(mm)S(mm)M(mm)Fv(N)Ma（Nm）Fv(N)Ma（Nm）Fv(N)Ma（Nm）Fv(N)Ma（Nm）Fv(N)Ma（Nm）Fv(N)Ma（Nm）4M22553457108351,1701,415254856551,3101,5502,1802,620M36301,0501,7002,2503,1503,800 68501,4002,2503,00024,2505,10037M41,1001,8502,9003,90035,7506,70049M51,8003,0004,8006,4009,40011,00010510M62,5504,2006,7509,0001013,2001515,500186114M84,65077,7501212,4001916,5002524,3003628,400438117M107,4001412,3002319,7003726,3004938,7007245,2008410121M1210,8002418,0004028,8006538,4008556,50012566,00014512223M1414,8003924,7006439,50010552,50013577,50020090,50023514226M1620,4005934,0009854,50015572,500210107,000310125,000365 27M1824,8008141,30013566,00021591,000300129,000430152,0005001730M2031,90011553,00019085,000305117,000425166,000610195,000710 32M2239,90015566,500260106,000415146,000580208,000820244,0009601936M2445,90020076,500330122,000530168,000730240,0001,050281,0001,220 41M2780,500295100,000490161,000780222,0001,100316,0001,550369,0001,8002246M3073,500395122,000660196,0001,050269,0001,450384,0002,100449,0002,450 50M3391,500540153,000900244,0001,450326,0001,900458,0002,700550,0003,2502755M36107,000690179,0001,150287,0001,850382,0002,450537,0003,450645,0004,150 60M39129,000900215,0001,500345,0002,400460,0003,200646,0004,500775,0005,4003265M42148,0001,100247,0001,850395,0002,950526,0003,950740,0005,550888,0006,650 70M45173,0001,400289,0002,300462,0003,700616,0004,950867,0006,9501,050,0008,3503675M48195,0001,700325,0002,800520,0004,450693,0005,950974,0008,4001,150,000,10,100 80M52234,0002,150390,000
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