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炉温的准确稳定与否是热处理零件质量优劣的重要因素之一。尤其是铝合金零件进行热处理时,炉温要求控制在±5℃以内。常用的位式调节器控温的井式炉,用电子电位差计控制炉温在长时间的保温过程中,往往发生一些难以及时发现的故障,使炉温失控,造成零件过烧甚至熔化。为此,我们试制了一种能防止热处理炉温度失控跑温的报警器,即《晶体管跑
Accurate and stable furnace temperature or heat treatment is one of the important factors of the quality of the parts. Especially aluminum alloy parts for heat treatment, the temperature control requirements within ± 5 ℃. Commonly used bit-type regulator temperature-controlled pit furnace, with electronic potentiometer control furnace temperature insulation process in a long time, it is often difficult to find some timely fault, the furnace temperature out of control, resulting in parts burning or even melting. To this end, we have trial-produced a temperature control furnace to prevent temperature runaway alarm, that is, "run