Calibration method of the hottest tensile testing

2022-08-24
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Calibration method of tensile testing machine

tensile testing machine can test the tensile strength, compressive strength and elongation of various experimental materials, semi-finished products and finished products, which are mostly used for the detection, research, analysis and production process control of impact resistance characteristics of engineering plastics and high molecular materials. It can do peeling, tearing, bending, bending, compression and other tests. It is generally suitable for metals, plastics, rubber, textiles, synthetic chemicals, wires and cables Used in leather and other industries

many enterprises find that the test results will deviate but will not be corrected when using the tensile testing machine for a long time. Due to the distance of the manufacturer, it cannot be handled quickly, which affects the product testing. China's scientific research institutions may have mastered the relevant technical engineering. Kunshan Haida instrument specially lists the correction method of the tensile testing machine to help you solve the urgent problem: it is not difficult to correct the tensile testing machine in 2017, It is mainly the force value and speed correction, and the following is the correction method:

1 Force value correction of tensile testing machine

after the tensile testing machine enters the computer program, open the correction interface, press the test to start, take a standard weight and hang it gently on the upper fixture connecting base, record the force value displayed by the computer, and calculate the difference with the standard weight, and the error should not exceed 1%

2. Speed correction of tensile testing machine

(1) first record the initial position of the cross arm of the machine, and select the speed value on the control panel if the total packaging volume exceeds 15000 kg (measure the cross arm travel with a standard straight steel ruler)

(2) at the same time of the starter table, the electronic stopwatch starts to count for one Z minute. When the stopwatch reaches the time, press the machine stop key at the same time. According to the time of the stopwatch, record the cross arm travel value, that is, the rate per minute (mm/min), observe the difference between the cross arm travel value and the straight steel ruler, and calculate the cross arm travel error value, which should not exceed 1%

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