Universal tensile testing machine installation and commissioning, maintenance and maintenance
Universal tensile testing machine uses DC servo motor as power source, large LCD display test data and test status, the control of the test process is achieved through the single-chip microcomputer automatic control, through the implementation of the PWM pulse width modulation signal to achieve the motor speed , In order to achieve the test machine displacement speed is adjustable. Before using this machine, please read this manual carefully and understand it before you can use it. Please take good care of this machine and use it correctly so that the machine will always maintain a high level of accuracy and good operating conditions.
Valves have many uses, including controlling water for irrigation irrigation, industrial uses for controlling processes, residential uses, such as on/off and pressure control to dish and clothes washers and taps in the home. Valves are also used in the military and transport sectors.
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The normal working conditions of the equipment are in the range of room temperature 10°C to 35°C, and the relative humidity is not more than 80%;
In a vibration-free environment, there is no corrosive medium and electromagnetic field interference around;
The fluctuation range of the power supply voltage should not exceed 10% of the rated voltage;
The host must be reliably grounded;
Electronically controlled parts are well ventilated.
Universal tensile testing machine installation and commissioning equipment and accessories in the packaging box, before opening the box should first check whether the packaging is intact. After unpacking, take out the random technical documents, check whether the components in the packing box are in good condition, and check whether there are missing parts according to the packing list.
The mainframe and the bottom of the packaging box are connected by a screw rod. The fastening nut should be loosened to remove the mainframe from the packaging box.
Place the Universal Tensile Tester on a sturdy, level concrete floor or on a firm bench.
The power supply system of the testing equipment is a single-phase AC power supply. The power supply is about 350W. Insert the power plug of the device configuration into a power socket that has been prepared in advance, and check whether the ground wire of the plug is connected to the power grid.
Note: The whole machine must be reliably connected to the grid ground.
Remove the banding straps on the limit bar, otherwise the limit does not work properly.
After the whole machine is powered on, turn the emergency stop (mushroom head) button clockwise to observe the maintenance and maintenance test of the universal universal tension testing machine on the operation panel. Pay attention to the position of the moving beam to ensure a good test space.
The screw should be lubricated every month, and check the condition of the oil in the reducer.
Please pay attention to keeping the testing equipment clean, and clean the site after the test is finished;
An abnormality occurred during the operation of the equipment. Immediately press the emergency stop button.
Operation and test process After the whole machine is powered on, turn the emergency stop button clockwise and the system is powered on. At this time, the LCD displays. Then press the green light. (The LCD shows the load, displacement, peak, status, speed)
Load ------ the whole process of the test, the force value at each time point.
Peak ------ The maximum force that the specimen bears. After the experiment is over, what it records is usually the desired experimental result.
Displacement ------ Shows the distance moved by the moving beam.
State ----- - There are three: UP is up, DOWN is down, STOP is stopped.
Speed ​​------ shows the current speed, you can choose the speed you need by pressing the speed key first, then pressing +, or -.
Press the load clear button, the load is zeroed, then press the up or down button to adjust the moving beam to the appropriate position. Note: After the rising key is pressed, you must press the stop key before you can press the down key again. Otherwise, the speed is not too fast.
The sample is mounted on the auxiliary tool, the upper end is fixed firmly, the pressing load zero key, the load is changed to zero, and once again, the peak value becomes zero. Then the lower end is fixed and the proper gear and speed are selected. (The sample must be tightened to avoid slipping, and it is clamped in the middle so that it does not affect the experimental results.)
Press the test button to start the test. After the sample is damaged, moving the beam will stop automatically. Sometimes you need to quickly press the stop button to move the beam to stop moving. At this time, the peak record is the maximum bearing capacity.
The main parts of the most usual type of valve are the body and the bonnet. These two parts form the casing that holds the fluid going through the valve.