本文运用热工理论分析周期性的室温变化对工件温度影响的规律,提出工件温度的计算方法,探讨隔热罩的效果。对于间歇运行的恒温车间,本文提出工件温度的加速飞升问题,建议把注意力从控制室温转移到控制工件温度上来。人们早就发现当室温作周期性变化时,工件温度的波动比室温波动小得多。为了分析研究工件温度的控制质量,首先要进行工件温度的计算。 In this paper, thermal engineering theory is used to analyze the regularity of the influence of periodic room temperature changes on the workpiece temperature, and the method for calculating the workpiece temperature is proposed to discuss the effect of the heat shield. For the intermittently operated temperature-controlled workshop, this article proposes an accelerated soaring of the workpiece temperature. It is proposed to shift attention from controlling the room temperature to controlling the temperature of the workpiece. People have long found that when the room temperature makes periodic changes, the fluctuation of the workpiece temperature is much smaller than the fluctuation of the room temperature. In order to analyze the quality of the control of the workpiece temperature, the workpiece temperature must first be calculated.