常用材料的热物性值.docx
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常用材料的热物性值.docx
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常用材料的热物性值
常用材料的热物性值
表1金属温度C2520040076980010001500020040080012000200400800120025200400800020040080012000200400800120002004008001200
各种金属的热物性值比热导热系数密度(g/cm3)液相cal/(gC)cal/(cmC)线、固相线温度(C)s0.1070.192=7.88(20C)0.1240.152=7.3(1500C)0.1450.120=7.0(1600C)0.3580.0740.2300.0710.1480.0700.1800.0320.1120.142=7.86(15C)0.1240.1280.1420.1070.2300.0680.1580.0710.1120.124=7.86(15C)0.1240.1160.1420.1020.2280.0620.1580.0710.1110.1030.1250.0950.1340.0790.2850.0780.1120.124=7.85(15C)0.1220.1150.1400.1000.1480.0590.1560.0710.1080.119=7.85(15C)0.1280.1080.1440.0910.1460.0580.1600.0720.1080.103=7.83(15C)0.1300.1020.1420.0890.1560.0570.1560.0681
纯铁
镇静钢(C0.08%)
软钢(C0.23%)
碳素结构钢(S35C)
中碳钢(C0.4%)
共析钢(C0.8%)
工具钢(C1.2%)
续表1金属温度C020040080012002020040080012002020040080012000200400800120020200400800900202004008001200202004008001000
各种金属的热物性值比热导热系数密度(g/cm3)液相cal/(gC)cal/(cmC)线、固相线温度(C)s0.1200.060=7.73(15C)0.1260.072Ts=14880.1440.074TL=14970.3260.0600.1600.0700.114=7.84(15C)0.1240.106TS=14200.1420.092TL=15200.2060.0620.1460.0720.1140.053=7.7(15C)0.1190.05513.1Cr,0.5Ni0.1460.058TS=13990.2140.064TL=14540.1360.0690.1180.03518~20Cr,8~12Ni0.1280.043TS=13990.1360.050TL=14540.1540.0630.1600.076(0.128)0.154=7.0(15C)比热相对于(0.134)0.124普通铸铁(0.140)0.094(0.168)0.0710.053(0.173)0.1860.1410.1040.0700.0360.101=7.1(15C)0.0870.1190.0720.0510.041
Si2%钢
Cr1%钢
不锈钢(AISI420)
不锈钢(AISI304)
过共晶灰口铸铁
共晶灰口铸铁
球墨铸铁
金属
温度C2020040080012002020060010001200202006001000202006009002020060090020200600100020200600100012002020050066020200500
白口铸铁
纯铜
比热导热系数密度(g/cm3)液相cal/(gC)cal/(cmC)线、固相线温度(C)s0.045=7.5~7.8(15C)0.0510.0530.0470.0480.0920.956=8.920.0930.931TS=TL=10830.1060.8740.1150.8030.1050.1110.1240.1360.0940.1000.1130.1230.0920.0970.1080.1160.0930.1010.1120.1230.1010.1050.1150.1250.1300.2150.2350.2680.2860.2100.2290.2613
Cu90%~Al10%
Cu70%~Zn30%
Cu60%~Zn40%
Cu70%~Ni30%
Cu60%~Ni40%
纯铝
Al-Cu4.5%
0.1220.1560.2330.3100.2670.3490.3590.3670.3020.3460.3610.3340.0690.0880.1300.1720.0560.0740.1130.1520.1720.5650.5700.5290.5080.4490.4490.461
TS=1030TL=1042TS=915TL=955
TS=900TL=905
TS=1170TL=1240
TS=1227TL=1280
s=2.70(15C)TS=TM=660.2
TS=502TL=638
金属
温
度C2020040050020200400650202004005492020040046820200600100060010001200
Al~Mg8%
纯镁Mg94.7~Zn4.6~Zr0.7(相当于MC6)Mg90.2~Al9~Zn0.6~Mn0.2(相当于MC2)InconelX(73Ni,15Cr,7Fe,2.5Ti,1Nb)耐盐酸镍基合金C
比热导热系数密度(g/cm3)液相cal/(gC)cal/(cmC)线、固相线温度(C)s0.2180.199TS=5400.2380.286TL=6250.2600.3820.2710.4310.2460.373s=1.740.2630.362TL=TS=6510.2880.3530.3250.3460.2420.261TS=5490.2640.296TL=6410.3030.3190.3410.3240.2350.051TS=4680.2610.056TL=6160.2910.0620.3000.0630.1030.028s=6.090.1150.035TS=13950.1330.052TL=14270.1970.0690.1260.046TS=12700.1530.070TL=13050.1670.074
表2铸型的热物性计算公式
crr6.16104
6.62109
8
T12
1.7010
T
2
2.631047
T
3
硅砂,干型c由No9的公式求得浇注合金:
铸钢
10
7.9810
16
T
r3.49102.28109
4
6.9210
TT3
T
2
2.72104
12
8..7610
16
T
硅砂,呋喃铸型浇注合金:
铸钢273
2.26110
3
2.157102732
6
T
11
1.347410
9
T3
CP0.09725T
0.154
硅砂,膨润土7%,水分4%=1.52硅砂=1.73
1.4429101.900109
1.8329102
6
T
273
TT
273
CP0.13072.7410
4
T
273
12
1.29010
7
273
2
TT
760C5
CP0.25472.07310760C3
T
273
1.70310
8.344510
8
T
273
13
CP0.09295T
0.162
2.248810
3
1.80102732
6
T
273
14
1.339610
9
T3
CP0.07597T
0.1586
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
2.84610
2.265102732
T
273
15
1.451810
9
T
CP0.06017T
0.170
=2.78
表3流动临界固相率
表4部分砂型热物性数据表
表5典型金属材料的常温密度
表6典型液体金属的物性值
①表示所给物性值的温度条件。
表7其它物质的热物性值
表8铸型内的传热系数
05101520304
33.731.624.718.615.3
0.0220.0210.0160.0120.010
铸造速度=2.03m/min
0.0210.0850.0110.0910.04~0.060.006~0.010.00750.00670.00500.00350.00260.0230.0200.0180.0160.0140.0121.9~2.20.030.01~0.020.3~0.40.04~0.070.11~0.170.004~0.0070.2~0.40.060.080.0560.0240.0140.01412
铸铁卧式连铸机
524030060013001800060120240360600
石墨铸型203mm同上,305mm铝连续铸造Fe-V2.85%铜铸型(仅单面)真空中碳素钢表面氧化铸铁铸型
6
7
8910111213
Al合金,压铸铝硅合金液体金属流动时(金属型)Al合金,金属型,低压铸造Al,金属型铸造(涂料50~200m)铜连续铸造铜合金(金属型)铸钢/砂型(难以产生空隙时)
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- 常用 材料 物性
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