Spring is more important is whether the pressure of the spring is good, people is also considering spring pressure performance, the application of spring spring factory of spring pressure testing generally adopts electronic digital display spring pressure testing machine, it is a test of spring tension and compression deformation and conforms to the characteristic of special apparatus, suitable for tensile, compression spring to a certain degree of working length under working load test, also can be used in rubber, reeds, etc. During the elastic stretch load test. So, next, stretch spring manufacturers, torsion spring manufacturers, shaped spring manufacturers to tell you about the compression spring pressure test steps.

1. Before the formal test of the compression spring, compress the spring once to the experimental load. When the test load ratio is heavy, the compression and load can be used as the test load.

2. Preparation before load detection: calibrate the load testing machine with the third-class standard dynamometer of the corresponding range or with a weight of uniform accuracy, so as to ensure that the precision of the testing machine is not less than 1%; At the same time, the length reading error of the load testing machine can be corrected by using block.

3, height of spring pressure to the specified 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 block gauge in the spring under test, mediation of zero, remove the spring self-respect, the spring pressure to specify the height, and read the corresponding load, end according to the calibration error of load testing machine, to make corresponding changes to your degree.

4. The upper pressure plate pressing spring was just lifted to the position, and the predicted value of the load testing machine was F0≈ 0.05f; Record the initial reading F0 and the length number of the load test, and then continue loading to make the reading change value indicated by the length reach the defined deformation.