Test Background
The wire rope tension test can conduct a tension test on the rigging or its representative sample under a predetermined load to assess the static mechanical properties of the rigging; on the axial fatigue testing machine, perform a dynamic tensile test on the rigging sample with the prescribed alternating load and frequency.
Zhongke Testing Reliability Experiment Center has the capability of reliability testing of various steel wires and steel wire products, and provides professional tensile testing services for steel wire ropes.
Scope of tests
Steel wire rope slings mainly include pressed slings, cast slings, plugged slings, braided slings, ring slings, clamping slings, wedge slings, steel column joint consolidation slings, composite slings and other types.
Test method
1. The test environment temperature of wire rope slings should be maintained at 5 ℃ ~ 40 ℃.
2. The tensile test of wire rope slings should be carried out on a coaxial tensile device. The fixed point must not rotate to cause the wire rope to untwist or twist.
3. When the ring rigging is subjected to a tensile test, the diameter of the pin must comply with the regulations. If necessary, bushings matching the diameter of the wire rope can be installed.
4. Static tension test of rigging: breaking tension test of rigging and non-destructive verification test.
5. Dynamic tension test of rigging
Test standard:
YB/T 4507-2017 Steel wire rope tension test method
GB/T 3159 Hydraulic Universal Testing Machine
GB/T 16491 Electronic Universal Testing Machine
GB/T 16825.1 Inspection of static uniaxial testing machines Part 1: Inspection and calibration of force measuring systems of tensile and compression testing machines
GB/T 16826 Electro-hydraulic servo universal testing machine
GB/T 25917 Dynamic force calibration of axial force fatigue testing machine
JJF 1103 Universal Testing Machine Computer Data Acquisition System Evaluation Regulations
JJF 1134 Calibration Specification for Special Work Dynamometer
JJG 139 Calibration Regulations for Tensile, Compression and Universal Testing Machines
JJG 475 Electronic Universal Testing Machine Calibration Regulations
JJG 556 axial force fatigue testing machine calibration procedures
