热膨胀量计算.doc

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1、热膨胀量计算金属长度热膨胀量ΔL=α·L（t2-t1）mmα——平均热膨胀系数mm/mm·℃L——金属长度mmt1——周围空气温度℃t2——金属温度℃线膨胀系数αx10-6mm/mm·℃温度℃20-10020-20020-30020-40020-50020-60020-700备注材料1511.7512.4113.4513.6013.8513.9020（20g、22g）11.1612.1212.7813.8313.9314.3914.812512.1812.6613.0813.4713.9214.4114.833511.111.913.414.44512.012.413.3

2、14.116Mn(15MnV)8.3110.9912.3113.2213.7113.9414.015MnTi8.8610.9712.3613.3213.7814.0314.1314MnMoV(12MnMoV)12.112.713.213.814.314.618MnMoNb12.813.413.714.314.614.912CrMo11.212.512.712.913.213.513.8起端温度为25℃15CrMo11.912.613.213.714.014.3起端温度为25℃12Cr1MoV9.80-10.6311.30-12.3512.30-13.3513.00-13.

3、6012.84-14.1513.80-14.6014.20-14.8612MoVWBSiRe(无铬8号)13.213.513.814.114.214.4起端温度为25℃12Cr2MoWVB(钢102)11.011.912.913.213.513.713.912Cr3MoVSiTiB10.3111.4611.9212.4213.1413.3113.54起端温度为25℃1Cr1310.511.011.512.012.01Cr18Ni9Ti16.617.017.217.517.918.218.6Mn17Cr7MoVNbBZr16.3417.4418.4919.3819.9920

4、.54