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利用电阻率测试仪测试了深冷处理前后黄铜在25~600℃的电阻率,并探讨了深冷处理对黄铜电阻率的影响。结果表明:深冷处理前后黄铜的电阻率均随温度的升高而增大,当温度低于300℃时,深冷处理后黄铜的电阻率大于深冷处理前的电阻率;高于300℃时,深冷处理后黄铜的电阻率小于深冷处理前的电阻率。
The resistivity of brass at 25 ~ 600 ℃ before and after cryogenic treatment was tested by resistivity tester, and the influence of cryogenic treatment on the resistivity of brass was also discussed. The results show that the electrical resistivity of brass increases with the increase of temperature before and after cryogenic treatment. When the temperature is lower than 300 ℃, the electrical resistivity of brass after cryogenic treatment is higher than that before cryogenic treatment. When the temperature is higher than 300 ℃ , The resistivity of brass after cryogenic treatment is less than the resistivity before cryogenic treatment.