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A. Main functions
The machine is controlled by computer, constant speed loading automatically complete the test process. It is mainly used for the compressive strength test of concrete compressive cement products, hollow bricks, fly ash bricks, refractory materials, engineering materials, stone, rubber bearings, rocks and other building materials, and meets the compressive strength test of concrete samples stipulated in GB/T50081-2002 "Standard for Testing Methods of Mechanical Properties of ordinary concrete" and other relevant ISO,ASTM standards.
It realizes automatic control of electro-hydraulic servo, automatic measurement of test force displacement, automatic collection of experimental data, screen display and saving.
It is the necessary equipment for the laboratory of road, railway, bridge, construction, building materials, universities and other industries. It can test the compressive strength of various metal and non-metal materials.
B.Main features
1.the main frame adopts four columns, lower cylinder, moving beam structure. The main cylinder is made of cast steel, and the piston is made of ductile iron. The frame and beam are cast parts, and the four lead screws are forged parts.
1.1 The frame material is a castings formed in one casting, and after failure handling, with long-term stability.1.2 The beam is equipped with a gap eliminator to eliminate the gap between the drive nut and the lead screw, and the beam is light in weight and good in stiffness; Stable and reliable.
1.3 The upper platen is connected under the beam by screws, and the upper and lower platens are made of steel.
1.4 The cylinder is made of integral casting and the stress of the cylinder is eliminated by the process after forming. The cylinder adopts clearance seal, which has low friction, less deformation and stable performance.
2. Computer measurement and control system. The measurement and control software is controlled by a computer and works under the Windows operating system. Servo valve as a control element, digital displacement sensor, high-precision load sensor, form a closed-loop control system, perform the test according to the predetermined program.
C. Control system
It can monitor the entire process of the test, automatically collect and process test data, and print test curve reports.
It can control the load, displacement and other rates throughout the entire test process, and maintain them for a long time.
It can perform force retention tests. With text prompts and sample fracture protection function.
Two control methods: force and displacement control.They can be switched
It can automatically store, reproduce processes, compare curves, zoom in locally, display in real-time, and automatically draw force-displacement and force-time curves, and automatically print test reports.
It can automatically determine the characteristic points of the tested material.
Overload automatic alarm; Piston stroke limit; Oil temperature protection; Set the upper and lower limits of the test force; The piston stopped rising after the sample broke.
During the test, various control rates and functions can be switched between each other.
Equipped with complete machine protection function.
| HC-2000 | HC-3000 | |
| Maximum test force | 2000kN | 3000kN |
| Effective range of test force | 5%-100% | |
| Force value accuracy | ≤±1% | |
| Compression space | 320mm | 330mm |
| Piston stroke | 0-50mm | 0-100mm |
| Platen size | φ300mm | 370*370mm |
| Motor power | 380V,2kW | 380V,2kW |
| Weight | 750kg | 1600kg |
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