The results show that with ambient temperature increasing, the friction coefficient of the PMIA increase then decrease, the maximum friction coefficient value is obtained at137 ℃. 结果表明,PMIA的摩擦系数随环境温度的升高,先增大后减小,在137℃出现最大值,磨损量随温度的升高而增大。
Because of the effect of temperature coefficient of dielectric constant and tolerate factor t value, the temperature coefficient of resonant frequency of the system have also changed. 体系的谐振频率温度系数也由于介电常数温度系数及容忍因子t值的影响有了不同的变化。
Besides that, this article analyzes the minimum power of amin of heat mechanics in high temperature, and the open from of the coefficient of freezing so as to obtain the approximate value. 此外,本文给出在高温情况下热力学过程的最小功A(min)和致冷系数ε的展开式,以便取近似值。
Besides, the film thickness is greatly dependent on the value of r w, but the maximum pressure, the maximum temperature and friction coefficient are related with the value of r w to limited extent. Research on the lean blow-out stabilities of the high temperature rise combustor 而rw对油膜最大压力、最高温升及摩擦系数的影响较小高温升燃烧室贫油熄火稳定性研究
According to the principle of the triode once exceeding the technological control, we must find out the main factor on effecting the temperature coefficient of the value of the pi and optimize technology in order to meeting the consumers needs. 介绍了如何通过加强工艺质量控制工作,找出影响β值温度系数的主要因素,并进行了相关的可靠性试验,满足用户要求。