液压万能材料试验机是一种精密的检测仪器,应用十分广泛。为了确保仪器的精度和延长使用寿命,除了严格按照操作规程使用外,我们还应注意如下二点。其一,在检测金属线材的极限强度和延伸率时,特别是线材直径较大时,当发现线材开始缩颈即试验机指针几乎不前进时,尽量控制在线材断裂前回油,避免强烈的振动。这对线材 Hydraulic universal testing machine is a sophisticated testing equipment, a wide range of applications. In order to ensure the accuracy of the instrument and extend the service life, in addition to strictly in accordance with the rules of use, we should also note the following two points. First, when testing the ultimate strength and elongation of the metal wire, especially when the wire diameter is large, try to control the oil before the wire breakage and avoid the strong vibration when it is found that the wire begins to shrink, ie the pointer of the tester hardly advances. . This pair of wires