1. introduction
The universal testing machine (UTM), also known as a universal tester, materials testing machine, materials test frame or tensometer, is used to test the tensile strength and compressive strength of materials. It can perform many standard tensile and compression tests on materials, components and structures, in other words, that it is versatile.
microcomputer control electronic universal testing machine is designed for colleges and universities, research institutes, design of a new generation of microcomputer control electronic universal testing machine. Computer system by digital controller, the speed control system to control the servo motor rotation, after reduction system to slow down the move beam by precision ball screw pair drive up and down, to complete the sample of tensile, compression, bending, shear, and other mechanical properties test, additional configuration supported by a wide variety of experiment, in the metal, nonmetal, composite materials and products of mechanical performance test, has the very broad application prospects.
2. specification
| Model | WTD-5/10/20/50 | WTD-100 | WTD-200/300 | WTD-500/600 |
| Max. capacity(kN) | 5/10/20/50 | 100 | 200/300 | 500/600 |
| Measuring range | 1%~100%FS(0.4%-100%FS) |
| Grade | Grade 1(Grade 0.5) |
| Force resolution | 1/400000 |
| Deformation measuring range | 2%~100%FS |
| Relative error of deformation value | +/-1%(+/-0.5%) |
| Deformation resolution | 1/400000 |
| Force speed | 0.01-50 kN/s |
| Deformation speed | 0.01-30mm/min |
| Displacement speed | 0.01-500mm/min (can be 1000mm/min) | 0.01-300mm/min | 0.01-250mm/min |
| Tensile fixture for round and flat specimen | Standard one set tensile fixture for round specimen, one set tensile fixture for round specimen, one set of compression platen, other test fixture can be equipped according to client’s requirement or relative test method |
| Extensometer | According to test materials or client’s requirement |
| High and low temperature test | According to relative test method or client’s requirement |
| Max. stroke of crossbeam | 1090mm | 1070mm | 1140mm | 1200mm |
| Effective tensile space (equip with metal tensile fixture) | 800mm | 700mm | 600mm | 600mm |
| Distance between columns | 430mm | 550mm | 600mm | 625mm |
| Power | 220V,1.0kw | 220V,2kw | 220V,3kw | 380V,4kw |
| Dim. Of loading frame(cm) | 79x43x186 | 92x50x198 | 110x60x241 | 130x87x250 |
| Weight | 400kg | 700kg | 1150/1250kg | 2500kg |
3. parameters can be measured
For tensile test, the universal testing machine can measure following parameters according to different materials (not limit to the following):
Elongation: increase in the original gauge length at any moment during the test
Percentage elongation: elongation expressed as a percentage of the original gauge length
Percentage permanent elongation: increase in the original gauge length of a test piece after removal of a specified stress, expressed as a percentage of the original gauge length
Percentage elongation after fracture: permanent elongation of the gauge length after fracture, expressed as a percentage of the original gauge length
Extensometer gauge length: initial extensometer gauge length used for measurement of extension by means of an extensometer
Extension: increase in the extensometer gauge length at any moment during the test
Percentage extension/ strain: extension expressed as a percentage of the extensometer gauge length
Percentage permanent extension: increase in the extensometer gauge length, after removal of a specified stress from the test piece, expressed as a percentage of the extensometer gauge length
Percentage yield point extension: in discontinuous yielding materials, the extension between the start of the yielding and the start of uniform work-hardening, expressed as a percentage of the extensometer of the extensometer gauge length
Percentage total extension at maximum force: total extension (elastic extension plus plastic extension) at maximum force, expressed as a percentage of the extensometer gauge length
Percentage plastic extension at maximum force: plastic extension at maximum force, expressed as a percentage of the extensometer gauge length
Percentage total extension at fracture: total extension (elastic extension plus plastic extension) at the moment of fracture, expressed as a percentage of the extensometer gauge length
Maximum tensile force: highest force that the test piece withstands during the test
Stress: at any moment during the test, force divided by the original cross-sectional area of the test piece
Tensile strength: stress corresponding to the maximum force
Yield strength: when metallic material exhibits a yield phenomenon, stress corresponding to the point reached during the test at which plastic deformation occurs without any increase in the force
Upper yield strength: maximum value of stress prior to the first decrease in the force
Lower yield strength: lowest value of stress during plastic yielding, ignoring any initial transient effects
Proof strength/ plastic extension: stress at which the plastic extension is equal to a specified percentage of he extensometer gauge length
Proof strength, total extension: stress at which total extension (elastic extension plus plastic extension) is equal to a specified percentage of the extensometer gauge length
Permanent set strength: stress at which, after removal of force, a specified permanent elongation or extension, expressed respectively as a percentage of original gauge length, or extensometer gauge length, has not been exceeded.
Modulus of elasticity: quotient of change of stress and change of percentage extension in the range of evaluation, multiplied by 100%
For compression test, this universal testing machine can measure following (not limit to the following):
Compression stress,
proof strength, non-proportional compression,
proof strength, total compression,
compressive yield strength,
upper compressive yield strength,
lower compressive yield strength,
compressive strength,
compressive modulus of elasticity
The universal testing machine can also make bending and flexural test, shear test, peel test, high and low temperature test, assurance loading test, wedge test, etc. if equipped with relative test fixtures.
Product Tags:
|
|
10 Ton Transverse Testing Machine , Data Display Cement Tensile Testing Machine Images
|
