金属热物性参数

1、表1各样金属的热物性值导热系数密度?(g/cm3)液相线、金属温度C比热cal/(cms?C)固相线温度(?C)250.1070.192?=7.88(20?C)2000.1240.152=7.3(1500?C)4000.1450.120=7.0(1600?C)纯铁7690.3580.0748000.2300.07110000.1480.07015000.1800.03200.1120.142?=7.86(15?C)沉着钢2000.1240.128(C0.08%)4000.1420.1078000.2300.06812000.1580.07100.1120.124?=7.86(15?C)2000

2、.1240.116软钢4000.1420.102(C0.23%)8000.2280.06212000.1580.071250.1110.1032000.1250.095碳素构造钢(S35C)4000.1340.0798000.2850.07800.1120.124?=7.85(15?C)2000.1220.115中碳钢4000.1400.100(C0.4%)8000.1480.05912000.1560.07100.1080.119?=7.85(15?C)2000.1280.108共析钢4000.1440.091(C0.8%)8000.1460.05812000.1600.072工具钢00.1

3、080.103?=7.83(15?C)(C1.2%)2000.1300.1024000.1420.0898000.1560.05712000.1560.068续表1各样金属的热物性值比热导热系数密度?(g/cm3)液相线、金属温度?Ccal/(g?C)cal/(cms?C)固相线温度(?C)00.1200.060?=7.73(15?C)2000.1260.072Ts=1488Si2%钢4000.1440.074TL=14978000.3260.06012000.1600.070200.114?=7.84(15?C)Cr1%钢0.1062000.1240.092TS=14204000.1420.

4、062TL=15208000.2060.07212000.146200.1140.053?=7.7(15?C)2000.1190.05513.1Cr,0.5Ni不锈钢4000.1460.058TS=1399(AISI420)8000.2140.064TL=145412000.1360.06900.1180.0351820Cr,812Ni不锈钢2000.1280.043TS=1399(AISI304)4000.1360.050TL=14548000.1540.06312000.1600.07620（0.128）0.154?=7.0(15?C)200（0.134）0.124比热相关于过共晶400（

5、0.140）0.094一般铸铁灰口铸铁800（0.168）0.071900（0.173）0.053200.1862000.141共晶灰口铸铁4000.1048000.07012000.036200.101?=7.1(15?C)0.1192000.087球墨铸铁4000.0728000.05110000.041比热导热系数密度?(g/cm3)液相线、金属温度?Ccal/(g?C)cal/(cms?C)固相线温度(?C)200.045?=7.57.8(15?C)2000.051白口铸铁4000.0538000.04712000.048200.0920.956?=8.92纯铜2000.0930.93

6、1TS=TL=10836000.1060.87410000.1150.8031200200.1050.122Cu90%Al10%TS=10302000.1110.156TL=10426000.1240.23310000.1360.310200.0940.267TS=915Cu70%Zn30%2000.1000.349TL=9556000.1130.3599000.1230.367200.0920.302TS=900Cu60%Zn40%2000.0970.346TL=9056000.1080.3619000.1160.334200.0930.069TS=1170Cu70%Ni30%2000.10

7、10.088TL=12406000.1120.13010000.1230.172200.1010.056TS=1227Cu60%Ni40%2000.1050.074TL=12806000.1150.11310000.1250.15212000.1300.172200.2150.565?s=2.70(15?C)纯铝2000.2350.570T=T=660.2SM5000.2680.5296600.2860.508Al-Cu4.5%200.2100.449TS=5022000.2290.449T=638L5000.2610.461比热导热系数密度?(g/cm3)液相线、金属温度?Ccal/(g?C

8、)cal/(cms?C)固相线温度(?C)200.2180.199TS=540AlMg8%2000.2380.286TL=6254000.2600.3825000.2710.431200.2460.373?s=1.742000.2630.362TL=TS=651纯镁4000.2880.3536500.3250.346Mg94.7Zn4.6200.2420.261T=549SZr0.72000.2640.296TL=641(相当于MC6)4000.3030.3195490.3410.324Mg90.2Al9200.2350.051TS=468Zn0.6Mn0.22000.2610.056TL=6

9、16(相当于MC2)4000.2910.0624680.3000.063Inconel200.1030.028?s=6.09X(73Ni,15Cr,7Fe,2.5Ti,1Nb)2000.1150.035TS=13956000.1330.052TL=142710000.1970.069耐盐酸镍基合金C6000.1260.046T=1270S10000.1530.070TL=130512000.1670.074表2铸型的热物性计算公式No视在物性值计算公式备注a0.001710.002470.001440.00232浇注合金：铸铁b0.00990.02501硅砂干型，呋喃铸型a0.002160.0

10、04160.00221浇注合金：铸铝0.00240b0.01630.02542硅砂干砂，呋喃铸型0.007870.001040000624.0.00120b0.004560.017330.0004070.004070.002460.00310b0.001600.03014CP0173.132.104Ti121.10726.9810113TiTi52.47104TiCP0131.177.10724.5310113TiTiCP0193.9.64105Ti623619.108Ti176.1011TiCP0128.711.105Ti7234.88108Ti198.1011Ti浇注合金：铸钢硅砂干型浇注

11、合金：铸钢硅砂呋喃铸型硅砂橄榄石砂锆砂CP8c0156.7.06105Ti4.6523108Ti132.1011Ti1213(1)s3s1g铬砂硅砂，干型，呋喃铸型g0937.1.32sg0.234600?C以下00996.125.W0.01060.285sgDP0.23490.385?0.4940.0058DP0.03790.03W0.07crr616.1046.62108T170.109T22.631012T37.981016T410r349.1046.92107T2.28109T22.721012T38.761016T42.2611032157.106T27313474.109T2112

12、73CP0.09725T0.15414429.10318329.106T2731900.109T2273CP01307.2.74104T273121290.107T2273T760CCP0.25472.073105T273T760C硅砂，干型?c由No9的公式求得浇注合金：铸钢硅砂，呋喃铸型浇注合金：铸钢硅砂，膨润土7%，水分4%=1.52硅砂=1.731703.1038.3445108T273CP0.09295T0.162132.2488103180.106T27313396.109T2273CP0.07597T0.158142.8461032.265106T27314518.109T227

13、3CP0.06017T0.17015橄榄石砂，膨润土5.9%，水分3.3%=1.83铬砂膨润土3.9%,水分2.1%=2.78锆砂，膨润土3.8%,水分2.1=2.78表3流动临界固相率合金临界固相率文献备考Al-Si2.4%0.6680考虑了浓化后决定固相率Si6.2%0.784Al-Si3%Al-Cu5.5%0.80.0585依照浓度实测值和杠杆0.701.Al-Mg13.8%定律算出固相率Al-Cu4.5%0.850.8786用谢依尔公式算出固相率ACB0.5(金属型)87用谢依尔公式算出固相率2Al-Si9%-Cu4%0.3(砂型)89Fe-C0.65%铜0.6980球墨铸铁0.758

14、8没有说明数据的明确依照Al-4.5%Cu0.84(自由凝集)Cu-8%Sn0.8Cu-8%Sn-0.5%Si0.75(自由凝固)Cu-8%Sn-2%Fe0.8Cu-8%Sn0.430.44(金属型，型温373?C)铸钢0.65铸钢，不锈钢0.70依照实测，Vc=0.032?C/s依照固相率与流过细管道的液体量测出,冷速Vc=0.03?C/s依照固相率与流过细管道的液体量测出未说明依照未说明依照表4部分砂型热物性数据表?(cal/s.cm.?C(cal/g?C?(g/cm3)型砂组成C)102说明)0.0550.1261.658515?C石英砂石0.1390.3101.700900?C，粒度5

15、0/100“干砂”0.0780.1911.500未表示者为常温，下同英“湿砂”0.2710.5031.650石英砂0.1120.3630.1910.21.77681砂黄砂0.0670.0821.5801.700石0.0960.3360.120.456英0.0720.36砂0.0620.3620.1410.181锆0.1910.251锆砂0.2230.391砂0.1680.21.73001300?C881.63401300?C0.1680.2881.45801300?C0.1680.21.602干燥砂，16.5?C881.678含水4.9%，18.9?C1.941.46001100，T?0.18

16、40.1810.2810.1200.22.83001100，T?102.8000900?C0.1300.202铬铁矿铬铁矿砂0.1250.2930.1510.22.6000900?C砂300.6142.583铁浇注法，界面平均石英砂+5%水玻璃1143?C铬铁矿砂0.139+水玻璃0.165水0.203钢浇注法玻铬镁矿砂+水玻璃0.243钢浇注法璃0.139石英砂+树脂钢浇注法砂石英砂+5%酚醛树0.1420.20228450?C脂0.1610.1371.48025550?C石英砂+3%7%呋喃树脂0.2020.181.63025550?C石英砂+2%呋喃树0.1220.231.480铝浇注法

17、，666?C脂0.1870.251.440铁浇注法，1155?C石英砂+1.5%呋喃0.1920.26.440钢浇注法，1155?C树脂0.2420.261.550钢浇注法，1155?C石英砂+1.5%树脂0.26200.261.630钢浇注法，1155?C0.180.230.180.261.440钢浇注法铬铁矿砂+1%树脂0.1610.22.900钢浇注法1铬砂+树脂铬砂+1%呋喃树脂钢浇注法0.230.2620.130.172.880常温1490?C树石英砂+6%0.231.450水0.231.570脂玻0.2521.390砂璃0.2521.6101.610铝浇注法，界面平均660?C铝浇

18、注法，界面平均660?C铁浇注法，界面平均1155?C铁浇注法，界面平均1155?C钢浇注法，界面平均1490?C表5典型金属资料的常温密度材质密度(g/cm3)材质密度(g/cm3)材质密度(g/cm3)钢灰口铸铁铝合金7.802.607.25碳素钢(中碳，铁素铝硅合金7.90体基体)2.80不锈钢8.208.80可锻铸铁7.27硬铝2.71高速钢ADC10铸铁8.80铜合金锌合金8.506.60灰口铸铁7-3黄铜ZDC28.40(高碳，铁素7.10体基体)6-4黄铜8.30球墨铸铁高强度黄铜镁合金1.80表6典型液体金属的物性值纯镁低合金铸钢纯铝纯铜一般铸铁物性值(1400?C)(700?

19、C)(1600?)(700?C)(1100?C)液相线温度14001530112311306601083851(?C)密度(g/cm3)6.807.006.506.902.351.901.58比热0.150.220.260.120.29导热系数40(纯铁)-10017080凝集潜热251268209268394204230(J.g-1)凝集缩短率(%)34-0.80.56.54.24.2表面张力()17009209001300560粘度(mPa.s)6581.1241.20.30.450.30.450.120.1热辐射系数-(全辐射系数)(全辐射系数)(相对0.65?m的(相对0.66?m的波

20、长)波长)表示所给物性值的温度条件。表7其余物质的热物性值比热导热系数密度?(g/cm3)物质名温度(?C)cal.g-1.?cal.cm-1s-1?C-1粘度?(Pa.s),其余C-1干燥空气200.246.210-5氮200.257.610-5氢203.394.210-4水201.01.410-3汽缸油200.453.610-4石膏200.150.21.4510-3石棉1000.1954.510-4混凝土200.21(23)10-3玻璃纤维200.169.610-5砂岩200.174.110-3杉树条230.0722.610-4硅砖5000.23310-3锆砖5000.14610-3121

21、.10318.1050.881032.51050.0851030.87105?=1.0,10.103?=0.89,?=0.8?=0.81.5?=0.58?=1.92.3?=0.2?=2.2?=0.42?=1.7?=3.7?=2.53CaO35%-SiO245%-Al2O320%(1.48.8)镁砖10000.310-3CaO50%-SiO35%-AlO15%2231.710-3渣100015000.2631.210-3渣100015000.41表8铸型内的传热系数比热流量q传热系数h=q/(T1-T2)No.时间备注cal/(cm2.s)cal/(cm2.s.?C)(s)1036.10.014

22、C0.035%钢546.00.034T1=TC(铸片)46.00.031T2=TM(结晶器)1029.00.019铸造速度=1.08m/min2027.00.017波折型扁板连铸机301520302405060700.035C0.120.16%钢连铸0.031T1=TC(铸片)0.024T=T(冷却水)2W0.019铸造速度=0.8m/min0.0140.0140.018022.80.016同上333.70.022铸造速度=2.03m/min51031.60.02124.70.0161518.60.0122015.30.0103040.0210.0850.0110.0910.040.0650.

23、0060.012400.007563000.0067铸铁卧式连铸机石墨铸型?203mm同上，?305mm铝连续铸造Fe-V2.85%铜铸型(仅单面)6000.0050真空中13000.003518000.002600.023碳素钢600.020表面氧化铸铁铸型1200.01872400.0163600.0146000.01281.92.2Al合金，压铸0.03铝硅合金液体金属9流动时(金属型)100.010.02Al合金，金属型，低压铸造0.30.4Al,金属型铸造110.040.07(涂料50200?m)0.110.17铜连续铸造120.0040.0070.20.4铜合金130.06(金属型)?0.08铸钢/砂型0.056(难以产生缝隙时)140.0240.0140.014153000.022同上4200.014(简单产生缝隙时)6000.01112000.008418000.0055表9合金的密度、潜热?(20?C)?(T)Lsss合金(kg/m3)(kg/m3)(kJ/kg)1%Cr钢7840-2771.5%Mn钢7850-2772%Si钢7730-333奥氏体不锈钢77