Introduction to hydraulic universal testing machine

Introduction to hydraulic universal testing machine

1. Use of hydraulic universal testing machine: used for mechanical properties tests such as tensile, compression, bending, and shearing of metals, non-metals, composite materials and products.

2. Hydraulic universal testing machine main structure: usually adopts a cylinder-mounted host, with the tensile space located above the host, and the compression, bending and shear test space is located between the lower beam and the workbench. The adjustment of the test space is achieved by using sprocket chain transmission to drive the lead screw pair to rise and fall.

3. Hydraulic universal testing machine controller andTorsion test machineThere are slightly different things: the microcomputer control full digital control system is adopted, which realizes closed-loop control of test force, test deformation, piston displacement and test process. It has control functions such as constant-speed stress, constant-speed strain, constant-speed test force, constant-speed displacement, test force holding, displacement holding, and screen display functions of test force, peak, test deformation, and test curve. Smooth switching between any setting of the control mode and various control modes makes the system more flexible.

4. Classification of hydraulic universal testing machines: There are three main control methods.
1. WE series digital experimental hydraulic universal testing machine
2. WEW series microcomputer screen display hydraulic universal test machine
3. WAW series microcomputer-controlled electro-hydraulic servo hydraulic universal testing machine

5. The main differences between the above three hydraulic universal testing machines are as follows:
1. Digitally explicit hydraulic universal testing machines are manually controlled, and the LCD screen displays the test force and test force, and can simply calculate the tensile strength of the material;
2. The microcomputer screen displays the hydraulic universal test machine manually operates, the loading rate can be manually controlled, and the test force-time curve can be displayed. In the metal tensile test, parameters such as Fm, Rel, Reh, Rp0.2, Rt, Agt, Z, A, Rm can be automatically obtained, and the results can be printed based on this, and reports and curves of different contents can be printed according to the requirements.
3. Microcomputer control electro-hydraulic servo hydraulic universal testing machine is fully automatic control, and loading is also a computer control, which automatically calculates various test parameters of the material, and can print data reports and curves.