Elevator wire rope how to use tension machine test stretch?

Tensile test methods

Steel wire rope tensile test methods are: casting method, sleeve pressure method, winding method and direct clamping method.

1, under general circumstances, the test should be carried out at room temperature from 10℃ to 35℃. If there are special requirements, the test temperature should be at 23℃±5℃.

2, the test should be smooth stretching, when the applied tension is not greater than 80% of the minimum breaking force of the wire rope, the test force can be applied quickly, and then slowly increase, the applied stress rate is about 10MPa/s.

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3, for casting method, will cast a good specimen placed in the jaw seat, you can carry out tensile test, for vertical tensile machine testing machine, let the lower jaw overhang, adjust the specimen, so that it coincides with the jaw seat axis, adjust the zero point of the testing machine, and then implement the tensile test.