Size and shapeStrictly prepare the samples according to the standards to ensure dimensional accuracy. The errors in thickness, length, and width will affect the test results1234.

surface treatmentThe surface of the sample should be flat, clean, and free of scratches or pores to reduce testing errors34.

annealing treatmentAnnealing treatment of injection molded samples to eliminate internal stress and improve the accuracy of test results25.

Initial temperatureAt the beginning of the test, the temperature of the heating device should be between 20-23 ℃ to reduce the impact of errors on the material46.

heating rateSelect the appropriate heating rate according to the standard (such as 50 ℃/h or 120 ℃/h). Excessive heating rate can lead to high test results2467.

Load conditionsAccurately set the load size (such as 10N or 50N) to ensure that the applied load reaches the set value48.

temperature calibrationRegularly calibrate the temperature sensor with a standard thermometer to ensure the accuracy of temperature measurement5.

Load calibrationUse an electronic balance to calibrate the quality of weights and needles, ensuring compliance with technical requirements5.

Deformation measurementCheck the accuracy of displacement sensors or micrometers to ensure the accuracy of deformation measurement56.

regular maintenanceClean the instrument, check if the components are intact, and prevent testing errors caused by equipment problems1.

Temperature and HumidityConduct the test in a standard laboratory environment (23 ± 2 ℃, 50 ± 5% RH) to avoid the influence of environmental factors14.

Ventilation and stabilityEnsure a stable testing environment, avoid direct sunlight, heat sources, and vibration1.

Parameter SettingsAccurately set test parameters based on material type and standard requirements1.

safe operationTo prevent burns, avoid touching the instrument randomly during the testing process1.

data recordingClosely observe temperature and displacement changes, accurately record test results1.