Instructions for use of tensile testing machine

Tensile testing machine is a test instrument that is more commonly used in the materials industry. Jinan Hengsi Instruments will share with you how to use it so as to obtain the test results more accurately. In useTension testerWhen conducting the test, firstly, clear the force value of the test area, then clamp the standard tensile sample of the corresponding force value on the test machine, and let the test machine stretch the standard tensile sample at the speed specified in GB/T228-2002. When the standard tensile sample is in a tensile state, install an extensometer or attach a strain gauge to it, so that the tensile test machine can continue to stretch the standard tensile sample. The extensometer or strain gauge displays the elongation amount of the standard tensile sample, convert the elongation amount into the tensile value, and then compare it with the same force value point as the standard tensile sample on the tensile test machine dial, and determine the technical status and accuracy of the test machine based on the difference in the comparison value. This method uses Hooke's law to compare the elongation amount of the standard tensile test sample into force value and the force value of the test machine dial to determine the accuracy of the test machine. This method greatly simplifies the verification operation process and brings great convenience and standardization to the daily verification of the original tensile state of the test machine.
This test method is characterized by the fact that it selects a standard tensile sample based on the force value of the tensile test machine in the tested range. The force value of the standard tensile sample is between 60% and 90% of the full range force value of the interval. The standard tensile sample is clamped on the tensile test machine, and the tension test machine is allowed to stretch the standard tensile sample according to the speed specified in GB/T228-2002. When the pointer of the electronic universal test machine swings slightly, the stretching is immediately stopped, that is, the standard tensile sample is in the pulling position. In stretching state, at this time, an extensometer is installed on the standard tensile sample or a strain gauge is attached. The tensile tester continues to stretch the standard tensile sample according to the speed specified in GB/T228-2002 standard. The extensometer or strain gauge displays the elongation of the standard tensile sample. According to Hooke's law, the elongation is converted into the tensile value, and then compared with the same force value point as the standard tensile sample on the tensile tester dial. The technical status and accuracy of the tester are determined based on the difference in the comparison value.
This is how to use Jinan Hengsi Shanda tensile testing machine. This test function is simple and convenient to operate and can obtain test results more accurately.