The article briefly introduces a calculating method of vacuum heat treatment thermal hysteresis time, to accurately and reasonablely decide vacuum heat treatment heating and holding time.
简要介绍了真空热处理加热滞后时间的计算方法，为准确、合理地确定真空热处理加热保温时间提供了理论基础。
Based on some simplified assumptions the equation for thermal hysteresis is introduced and a formula is thereby derived for calculating the time constant.
按一定的简化假设，建立了百叶箱热滞方程，井导出了百叶箱热滞系数的计算公式。
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