摘要
传统钢丝索氏体处理设备温控系统采用位式控制,存在温控精度低,事故频率高等问题.根据矿用制绳钢丝索氏体化炉温度大惯性、大时滞等特点,设计一种基于32位微控制器PID控制算法的索氏体化炉温度控制系统.该微控制器具有抗干扰能力强、运算速度快、可处理多个任务等优点.采用微处理器后,索氏体炉内温度波动极差值由7.3℃减小为0.98℃;抗拉强度分布范围由1 140～1 214 MPa缩小到1 155～1 199 MPa.结果表明：采用微控制器能有效控制索氏体炉的温度,使处理后钢丝的力学性能更加稳定.
Stepping control was applied in traditional patenting furnace temperature control system, which had problems such as low precision temperature control and high accident frequency. A patent furnace temperature control system based on 32-bit microcontroller PID control algorithm was designed according to characteristics of steel wire sorbite furnace tem- perature large inertia and large delay. The microcontroller has the advantages of strong anti-interference ability, high com- puting speed and multitasking capabilities. After using microcontroller, temperature fluctuation range in lead bath was de- creased from 7.3℃ to 0.98℃, tensile strength distribution range decreases from 1 140 - 1 214 MPa to 1 155 - 1 199 MPa. The results show that adopting the microcontroller can control temperature of sorbite furnace effectively, the mechani- cal properties of steel wire after treatment are more steady.
出处
《金属制品》
2014年第2期45-47,51,共4页
Metal Products
关键词
微控制器
PID算法
索氏体化
温度
抗拉强度
microcontroller
PID control algorithm
patenting
temperature
tensile strength
