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attentions on purchasing steel strand tensile stress relaxation testing machine

The steel strand stress relaxation  testing machine is mainly used for testing the tensile properties of  prestressed steel wires, steel bars, steel strand wires and prestressed  steel bars at room temperature. It is suitable for highway bridges,  construction engineering, metrological quality inspection, scientific  research institutes. , metallurgical steel and other industries. How to  choose the steel strand stress relaxation test machine? Today, from the  structure and force measurement system of the steel hinge line stress  relaxation tester, the main points of its purchase are as follows:

  1. Structural frame of steel strand stress relaxation testing machine
    Since the steel strand stress  relaxation test requires a long-term load test, the usual test time is  more than 100 hours or the test time is required to reach 1000 hours.  During the long-term test, the test machine is in a state of being  stressed. This requires the test machine itself to have sufficient  strength to avoid the relaxation of the stress relaxation testing  machine itself, thus ensuring the accuracy of the test results.

    The main body frame of the steel  strand stress relaxation test machine produced by Jinan Wangtebei  Instrument & Equipment Co., Ltd. adopts twice the maximum test  force, which greatly increases the stability of the relaxation test and  effectively reduces the test error caused by the structural frame. It  adopts planetary reducer and self-locking worm gear structure, and has  no gap ball screw. It has compact structure and high efficiency.

  2. Steel strand stress relaxation tester force measurement system
The strength of the force sensor of the  steel strand stress relaxation testing machine also determines the  strength of its anti-relaxation; so it can maintain the stability and  accuracy of measurement under the long-term relaxation test state has  become the top priority.At this point, domestic sensors are difficult to  achieve very good results. The steel strand tensile stress relaxation  testing machine produced by Jinan Wangtebei Instrument and Equipment  Co., Ltd. adopts the American Celton load sensor with high strength and  good stability, which greatly reduces the error of the test force value  during the long-term relaxation test.

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