The WDW-20B microcomputer controlled electronic universal testing machine is a high-precision and multi-purpose material testing machine used for mechanical property testing of various metal materials, non-metal materials, composite materials, polymer materials, and other materials. The precision ball screw is driven by a servo motor through a reduction system to rotate and drive the loading crossbeam to move up and down, completing tests such as tension, compression, bending, shearing, tearing, peeling, puncturing, and bursting of the sample or component. The tension and compression spaces can be automatically adjusted by the rotation of the screw and the movement of the middle crossbeam up and down.
A precision closed-loop control system composed of a controller, servo motor, load sensor, displacement sensor, extensometer, and computer can automatically and accurately control the testing process, and automatically measure testing parameters such as force, displacement, and deformation.
The testing machine can achieve tests such as equal rate test force, constant rate deformation, and constant rate displacement, and can achieve three-stage control of force, deformation, and displacement in one test, with smooth transitions between each control.
The experimental parameters can be automatically controlled and the experimental results can be obtained through computer collection and software processing. Real time display of test curves and results on computer screens, and printing of test reports and curves.
Related Standards
GB/T 16491---- "Electronic Universal Testing Machine"
GB/T 2611---- General Technical Requirements for Testing Machines
GB/T 13634---- "Calibration of Standard Force Measuring Instruments for Inspection of Uniaxial Testing Machines for Metallic Materials"
GB/T 22066---- "Evaluation of Computer Data Acquisition Systems for Static Uniaxial Testing Machines"
GB/T 16825.1---- "Inspection and Calibration of Static Uniaxial Testing Machines for Metallic Materials - Part 1: Inspection and Calibration of Force Measuring Systems for Tensile and/or Compressive Testing Machines"
JJG 139----"Tensile, Pressure, and Universal Testing Machines"
JB/T 6146---- "Technical Conditions for Stretchers"
| 规格型号 | WDW-20B |
| 最大负荷（kN） | 20 |
| 试验机准确度等级 | 0.5级 |
| 试验力示值相对误差 | ±0.5％以内 |
| 试验力测量范围 | 0.4％－100％FS |
| 变形（引伸计）测量范围 | 1%--100%FS |
| 变形示值相对误差 | ±0.5％以内 |
| 应变控制速率范围 | 0.005-0.5FS/S |
| 横梁移动行程(mm) | 1100 |
| 横梁移动速度(mm/min) | 0.001～1000 |
| 有效试验宽度（mm） | 430 |
| 最大拉伸空间（mm） | 700 |
| 最大压缩空间（mm） | 700 |
| 圆试样夹块的夹持范围（mm） | Φ4～Φ20 |
| 压板尺寸（mm） | Ø100 |
| 主机外形尺寸（长×宽×高，mm） | 845×820×2078mm |
| 总功率（W） | 1000 |
| 重量（kg） | 540 |
| 电源电压 | 220V/50Hz±10% |
| 最大采样频率 | 1000Hz |
