What is an electro-hydraulic universal testing machine?
The electro-hydraulic universal testing machine is a high-precision equipment widely used for testing the mechanical properties of materials. It is mainly used for tensile, compression, bending, shearing and other mechanical properties testing of metals, non-metals, composite materials and other materials. It combines the advantages of electronic control and hydraulic drive, and has the characteristics of high precision, high stability, and large load range. It is widely used in aerospace, automobile manufacturing, construction engineering, scientific research and education and other fields.
1. Working principle of electro-hydraulic universal testing machine
The electro-hydraulic universal testing machine provides power through the hydraulic system, and the electronic control system accurately adjusts the loading speed and load size. Its core components include hydraulic pumps, servo valves, sensors and control systems. During operation, the hydraulic pump generates high-pressure oil, and controls the flow direction and flow rate of the oil through the servo valve, thereby driving the piston to move and loading the sample. The sensor collects load, displacement and other data in real time, and adjusts it through feedback from the control system to ensure the accuracy of the test.
| Core components | Function |
|---|---|
| Hydraulic pump | Provide high-pressure oil power source |
| servo valve | Precise control of oil flow and direction |
| sensor | Real-time collection of load, displacement and other data |
| control system | Adjust loading speed and load size |
2. Characteristics of electro-hydraulic universal testing machine
1.High precision: Using electronic servo control technology, the load and displacement measurement accuracy can reach within 0.5%.
2.Large load range3.Multifunctional4.Strong stability5.High degree of automationPerformance indicators Typical value Load range 10kN-6000kN Measurement accuracy ±0.5% Test speed 0.001-100mm/min Control method Electronic servo closed loop control
3. Application fields of electro-hydraulic universal testing machine
1.Aerospace2.Automobile manufacturing3.Construction Engineering4.Scientific research and education5.Quality controlIndustry Typical applications Aerospace Titanium alloy and composite material testing automobile manufacturing High strength steel and aluminum alloy testing construction project Concrete compression test Scientific research and education Research on mechanical properties of new materials
4. How to choose an electro-hydraulic universal testing machine
1.Clarify test requirements2.Pay attention to the control system3.Consider scalability4.Brand and service
5. Recent hot topics: Intelligent trend of electro-hydraulic universal testing machines
With the development of Industry 4.0, electro-hydraulic universal testing machines are evolving towards intelligence and networking. The following are the technology trends that have been hotly discussed on the Internet in the past 10 days:
| Hot content | Technical Highlights |
|---|---|
| AI data analysis | Optimizing experimental parameters through machine learning |
| remote monitoring | Internet of Things technology enables remote management of equipment |
| digital twin | Synchronization of virtual simulation and actual test data |
Summary: The electro-hydraulic universal testing machine is the core equipment for material mechanics testing. Its high precision and multi-functional characteristics make it indispensable in many fields. In the future, with the integration of intelligent technology, its application scenarios will be further expanded.
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