How should the pressure tester be operated and calibrated

The tensile and pressure testing machine force measurement system needs to be regularly inspected and calibrated during daily use to ensure that the measurement accuracy of the tensile testing machine meets the requirements.

The compressive strength of the materials in different industries of pressure testing machines is different, so the measurement range of the pressure testing machine is also different. Although the test range is downward compatible with the maximum test force as the upper limit, it is difficult to ensure the accuracy of the test results using a large number of equipment to test samples with very low compressive requirements.

Therefore, all test machine manufacturers will indicate the measurement range of force value on technical indicators, such as: the range is 4%-100%F.S. The correct way to purchase a pressure test machine is: to understand the model and scope of application of the pressure test machine from the manufacturer according to the material and specifications of the sample, and to provide the sample for the manufacturer to perform a test to facilitate the selection of the pressure test machine.

Tensile test of tensile tester: Tensile test (stress-strain test) generally clamps the two ends of the material sample on two fixtures at a certain distance, and separates and stretches the sample at a certain speed to measure the stress changes on the sample until the sample is damaged. Tensile test of tensile machines is one of the most widely used methods to study the mechanical strength of materials, and requires constant speed movement. According to the different load measurement methods, it can be roughly divided into two categories: hydraulic universal tensile testing machine and electronic tensile testing machine.