1brief introductioncharacteristic：The main unit of HG-YDW300P intelligent electro-hydraulic universal testing machine adopts a cylinder mounted main unit. Function: Mainly used for tensile, compressive, bending and other tests of metals and non metals. Suitable for fields such as metallurgy, construction, light industry, aviation, aerospace, materials, universities, research institutions, etc. The experimental operation and data processing comply withGB228-2002The requirements of the "Tensile Test Method for Room Temperature Materials and Metals".

2 Scheme Description

2.1 Host

The main engine adopts a bottom mounted oil cylinder type, with the stretching space located above the main engine, and the compression and bending test space located between the lower crossbeam and the workbench above the main engine.

2.2 Transmission System

The lower crossbeam lifting motor adjusts the stretching and compression space through a reducer, chain transmission mechanism, and screw pair transmission

2.3 Hydraulic system

The hydraulic principle is shown in the diagram, which is a load adaptive oil inlet throttling speed control system with manual valve control for the test process.

The hydraulic oil in the oil tank is driven by a motor to enter the oil circuit through a high-pressure gear pump, and flows through a one-way valve10The high-pressure oil filter, differential pressure valve group, and oil delivery valve enter the oil cylinder. By manually controlling the opening size of the oil delivery valve, the flow rate into the oil cylinder can be controlled to meet the loading requirements. After the experiment is completed, open the return valve to unload and return the oil cylinder.

2.4 Screen Display and Software System

2.4.1 Screen display function with test force, force, peak value, sample deformation, piston displacement, and test curve. Easy to operate and intuitive!

2.4.2 can be pressedGB228-2002The data processing for the test shall be completed in accordance with the requirements of the "Method for Tensile Testing of Materials at Room Temperature".There are options available in the software for you to choose from150National and international standards! If the testing machine allows, it is convenient for you to provide prepared data and test reports to customers (domestic and foreign) with various requirements! Reflect your company's experimental strength and reputation

2.4.3Test original record values and report values according to standardsGB228Request to amend the agreement.

2.4.4 Loading rate can be manually controlled and can be tested by force-Time curve display.

2.4.5 Automatic calculation in metal tensile testingFm、Rel、Reh、Rp、Rt、Agt、Z、A、RmWaiting for parameters, it can also be adjustedFel、FmWait for manual verification and print the results accordingly. Reports and curves with different contents can be printed according to requirements.

2.4.6Capable of outputting and printing power-Strain, force-Displacement, force-time3Different forms of curves.

2.5 Safety protection device

a）When the test force exceeds the maximum test force for each gear2%-5%Overload protection, shutdown.

b）When the piston rises to the upper limit position, the stroke protection stops and the oil pump motor stops.

2.6 Attachments

The complete set of attachments includes one set of stretching attachment, one set of compression attachment, and one set of bending attachment.

2.7 Other

Installation and debugging tools, seals, user manuals, certificates of conformity, packing lists, etc. can be found in the accompanying technical documents.

3 Main Performance and Technical Indicators

3.1 Maximum test force：300 kN；

3.2 Test force measurement range:6-300 kN；

3.3 Accuracy of Test Force Indication： ±1%；

3.4 Piston stroke: Not less than200 mm；

3.5 Maximum piston movement speed:50 mm/min；

3.6 Displacement measurement resolution：0.01 mm；

3.7 Displacement measurement indication accuracy:±1%；

3.8 Maximum tensile test space: Not less than550 mm(Including piston stroke)

3.9 Maximum compression space: Not less than500 mm

3.10 Flat specimen clamping thickness：0-15 mm

3.11 Clamping width：40mm

3.12 Circular specimen clamping diameter：φ10-φ32 mm

3.13 Pressure Plate Size：170*170mm

3.14 Clamping methodHydraulic clamping

3.15 Bending roller spacing: 30-350mm

3.16 Piston stroke: 250mm;

3.17 Equipment size:Length 900 * 750 * 2200 (mm)

Table style oil source size: Length 1200wide550 tall1100 About0.7square meter

3.18 Equipment tonnage: 2200Kg

3.19. Power supply voltage: three-phase, 380V ± 10%, 50Hz;

3.20 Working environment: Room temperature~30 ℃, relative humidity not exceeding 80%；