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三 简述题1 蠕变试验设备主要技术性能指标(1)同轴度≤15%(2)负荷精度≤±1%(3)控温精度试验温度 温度波动 温度梯度 ≤900℃ ±3℃ 3℃900～1100℃ ±4℃ 4℃(4)测变形精度差动变压器,量程2mm,指示精度0.2级,最小分度值 0.0001mm.千分表,量程0～5mm,最小分度值0.001mm.2 蠕变试验的工作环境(1)远离震源,以防外来振动干扰误差.(2)采用双路电源,以免中途断电,试验中断.
Three brief questions 1 Main technical performance indicators of creep test equipment (1) Concentricity ≤ 15% (2) Load accuracy ≤ ± 1% (3) Temperature control accuracy Temperature fluctuations Temperature gradient ≤ 900 ℃ ± 3 ℃ 3 ℃ 900 ~ 1100 ℃ ± 4 ℃ 4 ℃ (4) Deformation precision differential transformer, range 2mm, indicating accuracy of 0.2, the smallest sub-value 0.0001mm. Dial indicator, range 0 ~ 5mm, the smallest sub-value 0.001mm .2 creep test work environment (1) away from the source, to prevent external vibration interference error (2) the use of dual power supply, so as to avoid the power outage, the test interruption.