真空炉中超高温加热元件的控制方法

CONTROL TO THE HEATER WITH SUPER-HIGH TEMPERATURE IN VACUUMFURNACE

介绍了电阻温度系数较大的几种加热元件的特性 ,报道了具有通用性的自动分段调压电路工作原理及调试方法。该技术主要适用于高电阻温度系数加热元件的控制及保护 ,设计了通用性很好的调整加热电压的电路 ,现已成功地应用于真空炉中超高温度的控制 。

Qualities of heating material with high resistance coefficient drpending on temperature are displayde.The principle and the regulating method of auto-change-voltage abapting to heater temperature are reported.This techique is effective to control and safeguard for the heater of high resistance coeffcient on temperature.The technique has been usde with good result to control the super-high temperature of the vacuum furnace,the lifetime of the heater is prolonged.