Pendulum impact testing machineThe absorption work of the specimen is obtained by using the difference between the potential energy before the impact of the pendulum and the remaining potential energy after the impact to be displayed on the degree plate. The operation is a semi-automatic control testing machine, easy to operate, high work efficiency, after breaking the sample, the use of residual energy that is automatic swing, ready to do the next impact test, so in the continuous impact test of the laboratory and a large number of impact tests of metallurgy, machinery manufacturing plants and other departments can reflect its superiority. The following is a brief introduction to the precautions in the use of the pendulum impact testing machine:
1. The pendulum impact testing machine needs to be operated by the tester and used for the drop weight impact test of related experimental materials.
2. In the process of using the testing machine, it must be operated in strict accordance with the instruction manual and test methods in the test standards issued by the company.
3. The specimen was pretreated under the condition of 23 2 for 24 hours.
4. According to the test requirements, the hammer head, hammer rod and weight are selected.
5. Confirm that the power connection and signal connection of the pendulum impact tester are correct, and then power on the machine.
6. Set the impact height according to the test requirements.
7. After the frame door and protective net door are closed, press the "positioning", "zero", and "hammer" buttons in order, and press "pre-fall" after the screen displays the lights off, closing the door, positioning, zero, grabbing hammer, and lifting hammer
8. After the screen displays "pre-falling", press "falling hammer" for impact test.
Pendulum impact testing machineRepeat 7 or 8 stripes after changing specimens until all of the samples are complete.
10. After the last hammer falls, keep a good sample, close the door and shut down.
11. Make a record of the use of the pendulum impact testing machine.
12. When the testing machine is not in use, it will be powered on for 1 hour per week to ensure the normal working ability of the testing machine.
13. Lift the lifting frame and clamp the ratchet with its claws, and when the hammer is raised, it should be noted that the swing frame cannot be pulled by hand. The safety device must be properly attached to avoid accidents.
14. Before the test, the hammer of the rope gate should be lifted, and the rope brake should be pulled down with the other hand, so that the rope brake is not in a tight state when impacting.
15. Before the test of the pendulum impact testing machine, it should be comprehensively checked whether the mechanism is normal, and the range of motion of the pendulum should not be hindered, so as to avoid accidents during impact.
16. When doing the impact test of high-speed steel and steel with similar properties, a safety cover must be prepared to prevent the sample from flying out and injuring people.
Got itPendulum impact testing machineAfter the precautions in use, the operator must use the testing machine in accordance with the process specifications in the manual. Otherwise, it is easy to cause machine failure and personal injury.