These steps and concerns are indispensable when the multifunctional tension machine is operated

The multifunctional tensile machine adopts the design of electromechanical integration, which is mainly composed of load cell, transmitter, microprocessor, load drive mechanism, computer and color inkjet printer. High-precision electronic speed-regulating motor can set stepless test speed. All integrated components are connected by plug connection. Floor-mounted models, modeling and painting have fully considered the relevant principles of modern industrial design and ergonomics.

The multi-function tensile machine can display the test process and curve on the whole computer display, and the microcomputer automatically transmits the test settings and test data. Users can modify the test report according to their requirements and output standard reports. Through the superposition analysis of the group test curves, the quality control parameters can be accurately grasped. The multi-mode data query function enables managers to clearly grasp the development trend of quality control. The specially designed software function can enable the experimenter to quantitatively grasp the state parameters of the key points in the application process of the test material, and accurately carry out process adjustment and production control.

working principle

Using high-speed DSP platform, its high integration, powerful control, data processing capabilities, and high reliability, the use of adaptive PID algorithm of all-digital, force, deformation, displacement control system, to achieve full digital control of force, deformation, displacement, each The control ring can be automatically switched, can control and maintain the rate of test force, deformation, displacement, etc., USB1.1 communication, plug and play interface This interface can achieve hot plug, that is, plug and play function. The layout of each interface is neat and reasonable, and it is easy to plug and unplug. The system board uses a 4-layer PCB anti-interference wiring method, which has strong anti-interference ability. The entire control system has high cost performance and high reliability. The entire test process is controlled by microcomputer and real-time dynamic display Load value, displacement value, deformation value, test speed and test curve.

Basic operation steps:

Power on â†’ Select test item â†’ Set test parameters â†’ Start test standby state â†’ Clamp test piece â†’ Start test â†’ Automatic return to the end of test â†’ Send test data â†’ Display test result and curve â†’ Test result * storage â†’ Output test result as required With curve

The requirements for the multi-functional tensile machine to carry out the tensile test are as follows:

1. The material tensile test should be within the range of the multi-function tensile machine. Do not overload the test. Before operation, read the manual or call the manufacturer and use it under the manufacturer's technical guidance.

2. Before power-on, the upper and lower limit switch must be adjusted to a suitable position and tightened. The limit switch is positioned. Generally, the fixture is installed so that the fixture will not collide. If the upper and lower limit switch is not adjusted to the appropriate position, it will cause the sensor or fixture to be damaged, causing the instrument to be paralyzed and unable to work. The operator should keep in mind that the limit switch should be checked for proper position and tightness before use.

3. After the clamp clamps the specimen and clears it for the tensile test, press the 'Run' key to test instead of pressing the <up> or <down> key, otherwise the machine cannot determine the pull-down shutdown signal, which will also cause the clamp Or the sensor is damaged.

4. When stretching the sample, to avoid defects that may cause the sample to break prematurely, both sides of the sample should be parallel, and the edge width should be less than 5% of the length between the two samples.

5. The thickness of the test sample should be kept constant, and the thickness of the sample should be less than 10% of the length of the sample between, the thickness of the material is less than 0,25mm, when the thickness of the material is greater than 0,25mm, less than 1,00mm, the thickness of the sample It should be less than 5% of the fixed sample length.

6. When the multifunctional tension machine is running, the rise or fall of the test piece should be controlled in the space of the upper and lower fixtures and pay attention to the running speed, otherwise the tensile fixture or the sensor may be damaged.

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