Electronic universal testing machine and hydraulic universal testing machine

There are many types of pressure testing machines, among which the electronic universal testing machine and the hydraulic universal testing machine are the two most widely used. Both of these testing machines meet the national standard GB/T228-2002<<metal material room temperature tensile test method> >The requirements can also be tested and data processed according to GB ISO JIS and other users to provide testing and data processing and have good scalability. It is the ideal testing equipment for scientific research institutes, universities, engineering quality supervision stations, etc. At the same time, electronic universal and hydraulic universal There are various areas of application to specifically discuss the differences between the two test machines.

First, from the structural characteristics:

The electronic universal testing machine mainly uses the servo motor as the power source, and the screw and the nut are used as the execution components to realize the speed control of the moving beam of the testing machine. In terms of transmission control, there are currently two main forms, timing belts and speed reducers. Domestically, test machine manufacturers in Jinan use synchronous belts, and test machine manufacturers from Jinan use reducers. Regarding its advantages and disadvantages, it remains to be explored, but it does not affect the user's use. On the force measurement, the electronic universal testing machine uses load sensors.

The hydraulic universal testing machine, as the name suggests, uses a high-pressure hydraulic source as the power source. Manual valves, servo valves or proportional valves are used as control elements for control. Ordinary hydraulic universal testing machine can only be manually and manually loaded. It belongs to the open-loop control system. Due to the price factor, the load cell generally uses a hydraulic pressure sensor. The electro-hydraulic servo universal material testing machine uses a servo valve or a proportional valve as a control element for control. Some domestic manufacturers have also adopted high-precision load sensors for measuring force.

Second, in terms of performance:

Electronic universal testing machine, no oil source. Therefore, it is cleaner, more convenient to use and maintain, and its test speed range can be adjusted. The test speed can reach 0.001mm/min-1000mm/min, and the speed ratio can reach 1 million times. The test stroke can be determined according to needs. flexible. The measuring force is high, and some can even reach 0.2%. The volume is small, the weight is light, the space is large, and it is convenient to add corresponding devices to do the mechanical tests of various materials. Really a multi-purpose machine. At present, the electronic universal testing machine produced by the mainstream testing machine manufacturers in China can achieve the so-called three closed-loop control of load control, strain control and displacement control.

The hydraulic universal testing machine is limited by the flow rate of the oil source and his test speed is low. Manual hydraulic universal testing machine, the operation is relatively simple, the price is cheap, but the control precision is low. Electro-hydraulic servo universal testing machine, compared with the electronic universal testing machine, the control accuracy is not bad except for the low speed. The microcomputer-controlled electro-hydraulic servo universal testing machine with load sensor can also achieve the accuracy of about 0.5%. . And when doing large-tonnage material mechanics tests, it is more reliable, more stable, and more cost-effective.

Third, from the scope of application:

Electronic universal testing machine, widely used in various metals, non-metal, composite materials, medicine, food, wood, copper, aluminum, plastic profiles, wire and cable, paper, film, rubber, textile, aerospace and other industries The test of the performance index can be customized, and various test data processing software and test aids can be customized according to the domestic and international standards provided by the user. The digital display electronic universal testing machine is suitable for users who only ask for relevant data such as tensile strength and compressive strength. If the demand takes more complicated parameters, the microcomputer control electronic universal testing machine is a better choice for you. In terms of cost performance, the electronic universal testing machine below 30T has advantages.

The hydraulic universal testing machine is mainly used for the mechanical properties test of tensile, compression and bending of metal, non-metal materials and parts, components and components. The hydraulic universal testing machine is an ideal test equipment for industrial and mining enterprises, building materials, quality inspection centers, water conservancy and hydropower, bridge engineering, scientific research institutes, and mechanical laboratory of colleges and universities. The manually controlled hydraulic universal testing machine is cheap and suitable for the inspection of finished products and single material indicators of industrial and mining enterprises. The electro-hydraulic servo universal material testing machine is suitable for laboratories with high requirements for steel and building materials testing. The electro-hydraulic servo universal material testing machine of 30T or more has more price advantage than the electronic universal testing machine.

Concerned about surprises

Label: electronic universal testing machine and hydraulic universal testing machine

Previous: SKF bearing type and use selection Next: There are two main forms of heat sink heat sink

Intergrated Led Emergency Modules

The Intergrated Led Emergency Modules is match the compact LED fittings to improve the emergency function. Normally it is workable for small wattage from 3-60W LED panels, downlights, led tubes, tri-proof ceilings. Full power output or half power emergency output is optional. Customized emergency lighting time is available. Automatic lighting up when main power failures. Widely using for home, parking lot, office, building, warehouse, school, hospital, workshop etc.

Emergency Light Module,Emergency Led Flasher Module,Led Emergency Modules,Intergrated Led,led light with emergency battery

Foshan Nai An Lighting Electric Co.,ltd , https://www.naipsled.com