Testing Machine Stress Relaxation Testing Machine For Strand Wire Tester

Product profile

This series of testing machine is mainly used for the relaxation test of various steel strands and steel bars. It can detect the uniaxial tensile relaxation strength of steel strands, threaded steel bars and other metal wires. Units, steel hinge lines and steel bar production enterprises are new test equipment for modern building mechanics tests. It is mainly used to test the mechanical properties of tensile stress relaxation of metal materials (such as steel strands, PC steel rods and steel wires) at room temperature. The product meets the "GB / T10120-1996 Metal Stress Relaxation Test Method" and "ASTM E328-2008 Material and Structure Stress Relaxation Test Method" GB / T20065-2006 "Threaded Rebar for Prestressed Concrete" standards. Relevant test requirements.

Control box profile

The host is a device for applying test force, which is composed of a frame, a beam, a column, etc., which is equipped with a precision ball screw, a reducer, and a left and right tensile profiler. The transmission loading system uses an AC servo drive to control its servo The motor drives the high-precision ball screw nut to rotate through the speed reducer and arc synchronous toothed belt, and drives the screw to move left and right to apply a load to the sample to complete the relaxation test of the metal sample. The machine has novel and beautiful appearance, reasonable structure, large rigidity and good stability. It has the characteristics of accurate transmission, excellent control and low indole sound.

Technical function

• Real-time plotting the relationship between the remaining test force and time can calculate the stress relaxation performance of the test piece for 1000 hours. The calculation method has double logarithmic and single logarithmic options.
• With arbitrary setting of loading rate, constant load and constant displacement control functions, it can automatically calculate the stress relaxation performance of the test piece (such as stress relaxation rate, relaxation stress, relaxation rate, etc.) and print out the complete test report and test curve
• It can quickly and accurately realize the digital calibration of the load, and has overload protection function. Programmable test conditions (sample environment, test conditions)
• It has the function of storing test results and being able to consult and traverse the test process