For precision spring surely everyone knows that is involved in a lot of mechanical, more is to allow for the use of precision spring spring pressure, so to a certain degree of pressure test is very necessary.
Through the spring pressure test to determine the precision of the effect of tension and
compression spring, know they can load intensity.
Come here under the simple understanding what is precision spring pressure testing steps.
precision spring pressure test steps:
1, before an official testing to precision springs, precision first spring compression to the experimental load at a time, when the test load pressure and load heavy, you can proceed to pressure and load as the test load, but it's quite a big pressure and flow pressure and load 1 cannot exceed mindset.
5 times.
2, preparing for load testing, with a corresponding range of third-class specification dynamometer or draw a more precision weights to proofread and correct load tester, ensure the machine precision not less than 1%;
At the same time, the dosage block proofread and correct the length of the load tester reading error.
3, precision spring pressure to a specified height of load test: will be the same as the specified height gauge block placed at the center of the pressure plate load testing machine, the load on the block gauge and pattern close to the nominal value of load, and the orientation of locking screws or slightly, will be put under test for gauge block measurement precision springs, mediation of zero, remove the weight of precision springs, precision spring pressure to specify the height, and read the corresponding load, according to the calibration error of load testing machine, to make corresponding changes to your degree.
4, pin on the pressure plate precision spring just lifted to the position, load tester predicted value F0 material 0.
05F；
Recorded in the load test on the number of initial reading F0 and length, and then continue to load, make the length of the signal reading to delimit the variance of the deformation.
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