A pressure testing machine is a type of equipment used to test the mechanical properties of materials under various stress states. It can simulate various stress states in actual engineering, such as tension, compression, bending, shear, etc., so as to provide reliable data support for engineering design and material selection. It is widely used in construction, transportation, aviation, aerospace, military and other fields, and is of great significance for ensuring the quality of projects and improving material performance.
Main components.
Main machine: including workbench, column, beam and other structures, used to support and fix the specimen.
Measurement system: including force sensor, displacement sensor, deformation sensor, etc., which is used to measure the stress, strain and other parameters of the sample in the process of stress.
Control system: including controller, display, printer, etc., which is used to realize the control of the loading system and the processing of measurement data.
Auxiliary equipment: including oil source, air source, cooling system, etc., to provide power and ensure the normal operation of the equipment.
Performance indicators of pressure testing machines.
Maximum test force: The maximum load that can be withheld, measured in Newtons (n).
Measuring range: The minimum and maximum stress values that can be measured in megapascals (MPa) or kilonewtons (kn).
Accuracy: The degree of accuracy of the measurement results, usually expressed as errors.
Resolution: The minimum stress value that can be resolved in megapascals (mpa) or kilonewtons (kn).
Speed range: The fastest and slowest loading speed that can be achieved, measured in millimeter minutes (mm minutes) or seconds (s).
Space Range: The range of specimen sizes that can be accommodated, including length, width, and height.
The procedure for the operation of the pressure testing machine.
Check the equipment: check whether all parts are in good condition, whether the connection is firm, and whether the oil source and air source are normal.
Specimen mounting: The specimen is mounted on the workbench and the position and orientation of the specimen are adjusted to meet the test requirements.
Set parameters: Set the maximum test force, measurement range, speed range and other parameters according to the test requirements.
Start the device: Turn on the power, start the control system and load the system.
Perform the test: load at the set speed and time, observe the deformation and rupture of the specimen, and record the measurement data.
End of test: When the specimen reaches the predetermined destruction criteria, the loading is stopped and the device is shut down.
Analysis data: The measurement data is processed and analyzed to obtain the mechanical properties of the sample.
Clean the equipment: Clean the workbench and measuring system to keep the equipment clean and tidy.
Maintenance & Maintenance.
Regular inspection: Conduct regular inspections and solve problems in a timely manner.
Change the fluid: Change the oil in the hydraulic system regularly according to the use of the equipment.
Cleaning equipment: Clean the bench and measuring system regularly to prevent dust and impurities from affecting the test results.
Maintenance equipment: Perform regular maintenance, including lubricating parts, fastening bolts, etc.
Train operators: Train operators to make them proficient in the operation methods and precautions of the equipment.