What should I pay attention to when testing the mechanical properties of GBT15831 rotary fastener

What should I pay attention to when testing the mechanical properties of GBT15831 rotary fastener

What should I pay attention to when experimenting with mechanical properties of GBT15831 rotary fasteners? When operating each experimental machine, you should pay more or less attention to what you need. The following related information is some solutions we have made to address technical problems.

1. Anti-slip performance experiment

The experimental method should comply with the provisions of this standard, and the preload P should be 0.2kN. When P increases to 7kN, record the value F1; when P increases to 10kN, record the value F2.

2. Anti-destructive performance experiment

After the anti-slip performance experiment, an anti-destructive performance experiment was performed. When P is 17kN, all parts of the fastener shall not be damaged.

3. Tensile performance experiment of butt fasteners

The fastener bears axial tension at constant speed and measures the displacement value F. When the preload P is 1kN, the displacement measuring instrument is adjusted to zero point, and then the loading continues. Note the F value when P is increased to 4kN.