Hydraulic universal testing machine and impact testing machine are two core equipment for material mechanical performance testing, used for static and dynamic mechanical performance testing respectively.
1. Hydraulic universal testing machine
(1) Core Features
Loading principle: Using a hydraulic servo system, the load is applied through the oil cylinder piston
Range of force values: typically 50kN~2000kN (5~200 tons), suitable for high load testing
Typical standards: GB/T 228.1 (Metal Tensile), GB/T 7314 (Compression), etc
(2) Testing ability
Can conduct tensile, compressive, bending, shear and other tests
Specially suitable for testing concrete, steel bars, large structural components, etc
2. Pendulum impact testing machine
(1) Basic Composition
Rack: High rigidity cast iron or steel plate welded to ensure stability
Pendulum: can be replaced with different energy levels (such as 150J, 300J), made of high-strength alloy steel
Sample support: Compliant with standard span (40mm or 60mm), with V-shaped/U-shaped notch positioning
Energy display system: digital or pointer energy scale, accuracy ± 1%
Release mechanism: Electromagnetic or manual release, ensuring no frictional interference
Safety protection devices: splash guard, emergency braking device
(2) Working principle
Pendulum lifting: Raise the pendulum to the specified height (150 ° or 160 °) to store potential energy.
Release impact: The pendulum falls freely and impacts the standard notch specimen (such as the Charpy V-notch).
Energy calculation: Measure the remaining height after the impact of the pendulum and calculate the energy absorbed by the sample (KV ₂/J).
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