材料許用接觸應(yīng)力

1、 常用鋼及鑄鋼的許用接觸應(yīng)力鋼號(hào)熱處理截面尺寸dmm機(jī)械性能bmpa機(jī)械性能smpa機(jī)械性能-1mpa硬度hb許用接觸應(yīng)力mpaa34040024016033020正火254202501805535035正火2554032023518745045正火2561036026524147516mn正火10030012636035正火30050012233035回火50075012032535回火750100011831035調(diào)質(zhì)10014043035調(diào)質(zhì)10030013440045正火10014043045正火10030013641545回火30050013440045回火5007001303804

2、5調(diào)質(zhì)20015847020mnmo調(diào)質(zhì)10030014244520mnmo調(diào)質(zhì)30050013440020simn正火40060013038020simn正火60090012636020simn回火900120012435035simn調(diào)質(zhì)10017654535simn調(diào)質(zhì)10030016952535simn調(diào)質(zhì)30040016450035simn調(diào)質(zhì)40050016049042simn調(diào)質(zhì)10017654542simn調(diào)質(zhì)10020017153042simn調(diào)質(zhì)20030016952542simn調(diào)質(zhì)30050016049038simnmo調(diào)質(zhì)10018256538simnmo調(diào)質(zhì)1003

3、0017955538simnmo調(diào)質(zhì)30050017554038simnmo調(diào)質(zhì)50080016450037simn2mov調(diào)質(zhì)20018752537simn2mov調(diào)質(zhì)20040018549037simn2mov調(diào)質(zhì)40060018246542mnmov調(diào)質(zhì)10030018256542mnmov調(diào)質(zhì)30050017955542mnmov調(diào)質(zhì)50080017554018mnmonb調(diào)質(zhì)10030017554018mnmonb調(diào)質(zhì)30050016952518mnmonb調(diào)質(zhì)50080015547530crmn2mob10030018659030crmn2mob30050018558030crmn

4、2mob50080018357035crmo調(diào)質(zhì)10017955035crmo調(diào)質(zhì)10030017554035crmo調(diào)質(zhì)30050016952535crmo調(diào)質(zhì)50080016450040cr調(diào)質(zhì)10017955040cr調(diào)質(zhì)10030017554040cr調(diào)質(zhì)30050016952540cr調(diào)質(zhì)500800155475 許用接觸應(yīng)力實(shí)例接觸零部件名稱材料許用接觸應(yīng)力mpa附注翻車機(jī)(翻轉(zhuǎn)火車車皮)滾圈35750線接觸起重機(jī)車輪(與鋼軌)351700 750點(diǎn)接觸 線接觸30-b型轉(zhuǎn)向架車輪-2100車輪表面硬度310hb燒結(jié)機(jī)的環(huán)狀冷卻機(jī)的球形支承14mnmovnb1500滾動(dòng)體滾動(dòng)接觸g

5、cr152300每分鐘滾100汽車轉(zhuǎn)向器中的滾珠螺旋機(jī)構(gòu)30003500 30005000表面硬度hrc60 表面硬度hrc63汽車轉(zhuǎn)向器中的螺桿軸承703雙列圓錐滾子軸承5000 潤滑一般的接觸零部件（如走輪）的許用接觸應(yīng)力材料熱處理硬度hb許用接觸應(yīng)力mpa35正火14018532038035調(diào)質(zhì)15520540043045正火16021538043045調(diào)質(zhì)21525544047020simn正火-35038035simn調(diào)質(zhì)21528049054042simn調(diào)質(zhì)21528550054038simnmo調(diào)質(zhì)19527050054037simn2mov調(diào)質(zhì)24029050056042mn

6、mov調(diào)質(zhì)22026050055018mnmo調(diào)質(zhì)19023048054018mnmob調(diào)質(zhì)24029050058030crmn2mob調(diào)質(zhì)24030057059035crmo調(diào)質(zhì)22026550055040cr調(diào)質(zhì)24028553055040cr調(diào)質(zhì)215260480530 潤滑良好的接觸零件（如凹輪）的許用接觸應(yīng)力材料硬度hb許用接觸應(yīng)力mpa鋼-鋼150150352鋼-鋼200150422鋼-鋼250150492鋼-鋼200200492鋼-鋼250200562鋼-鋼300200633鋼-鋼250250633鋼-鋼300250703鋼-鋼350250773鋼-鋼300300773鋼-鋼35

7、0300844鋼-鋼400300879鋼-鋼350350914鋼-鋼400350984鋼-鋼5003501020鋼-鋼4004001195鋼-鋼5004001230鋼-鋼6004001266鋼-鋼5005001336鋼-鋼6006001617鋼-鑄鐵150352鋼-鑄鐵200492鋼-鑄鐵250633鋼-磷青銅150352鋼-磷青銅200492鋼-磷青銅250598鑄鐵-鑄鐵150250633鑄鐵-鑄鐵160250680彈性壓頭和均布載荷的接觸問題計(jì)算公式圖形接觸應(yīng)力和變形公式沿半無限板邊橫向刀口2，板厚為t 沿半 無限 板邊的橫向 有寬2b的剛塊，板厚為t大半無限 體的表面上有半徑為r的剛書

8、生 圓柱塊沿半無限板邊的橫向有沿長度l均布的壓力qn/m2大半無限體的表面上有 沿半徑為r的圓面積均布的壓力qn/m2表 1.4.1 部分常用沖壓材料的力學(xué)性能 材料名稱 牌號(hào) 材料狀態(tài) 抗剪強(qiáng)度 t / mpa 抗拉強(qiáng)度 s b / mpa 伸長率 d 10 /% 屈服強(qiáng)度 s s / mpa 電工用純鐵 c0.025 dt1、dt2、dt3 已退火 180 230 26 普通碳素鋼 q195 未退火 260320 320400 2833 200 q235 310380 380470 2125 240 q275 400500 500620 1519 280 優(yōu)質(zhì)碳素結(jié)構(gòu)鋼 08f 已退火 2

9、20310 280390 32 180 08 260360 330450 32 200 10 260340 300440 29 210 20 280400 360510 25 250 45 440560 550700 16 360 65mn 已退火 600 750 12 400 不銹鋼 1cr13 已退火 320380 400470 21 1cr18ni9ti 熱處理退軟 430550 540700 40 200 鋁 l2、l3、l5 已退火 80 75110 25 5080 冷作硬化 100 120150 4 鋁錳合金 lf21 已退火 70110 110145 19 50 硬鋁 ly12

10、已退火 105150 150215 12 淬硬后冷作 硬化 280320 400600 10 340 純銅 t1、t2、t3 軟態(tài) 160 200 30 7 硬態(tài) 240 300 3 黃銅 h62 軟態(tài) 260 300 35 半硬態(tài) 300 380 20 200 h68 軟態(tài) 240 300 40 100 半硬態(tài) 280 350 25 序號(hào)熱處理號(hào)鋼號(hào)爐號(hào)抗剪強(qiáng)度試驗(yàn)方法取樣方向試驗(yàn)尺寸試驗(yàn)單位160cr12mn5ni4mo3al0615951212_4mm_260cr12mn5ni4mo3al061595869_4mm_360cr12mn5ni4mo3al061595717_4mm_1170

11、cr15ni7mo2al041095918縱向_1515crmnmova032094813縱向_2915crmnmova032094740縱向_1116mnr2-5514-1421din50141橫向10合肥通用所2116mnr2-6824-2414din50141橫向10合肥通用所3116mnr1-6951-3412din50141橫向10合肥通用所1116mng891161393din50141-82橫向_上海工業(yè)鍋爐廠2116mng891162391din50141-82橫向_上海工業(yè)鍋爐廠3116mng891163375din50141-82橫向_上海工業(yè)鍋爐廠4116mng89116

12、4390din50141-82橫向_上海工業(yè)鍋爐廠5116mng891165390din50141-82橫向_上海工業(yè)鍋爐廠1220crmnti20651756din50141-82縱向10第一汽車廠2220crmnti206511774din50141-82縱向10第一汽車廠11020mn2a061095730_鉚接 =5 mm_21120mn2a061095630_鉚接 =5 mm_31220mn2a061095566_鉚接 =5 mm_41320mn2a061095544_鉚接 5mm_1120r82-252-1307din50141-82橫向10*10*90上海工藝所2120r1-68

13、29302din50141-82橫向10*10*90上海工藝所3120r82-251-2301din50141-82橫向10*10*90上海工藝所4120r82-223-4310din50141-82橫向10*10*90上海工藝所5120r1-6765317din50141-82橫向10*10*90上海工藝所1430crmnsia081694735縱向_2430crmnsia081694715橫向_1630crmnsini2a0720941000縱向_1130crni4moa031594796縱向_2230crni4moa031594701縱向_1238cr2mo2va0830941105縱向

14、_1140crni2si2mova0707941285縱向_1140mnb894001619din 50141-82縱向10第一汽車廠2140mnb894002672din 50141-82縱向10第一汽車廠3240mnb894001548din 50141-82縱向10第一汽車廠4240mnb894002558din 50141-82縱向10第一汽車廠11hfe59-1-1122294295縱向_11ld1089l10-1257din 50141-82縱向550上海材料研究所11ld589l101275din50141-82縱向550上海材料研究所11lf2082094123縱向_21lf2082094137縱向_31lf2082094162縱向_42lf2082094147縱向_52lf2082094123縱向_11lf3082294152縱向_21lf3082294147縱向_12ly1290124l252din50141-82縱向550上海材料研究所11qal9-412