What are the methods of evaluating spring fatigue test results?

Spring fatigue test result evaluation method:

1) Determination of fatigue life: Under the given failure conditions, the maximum number of cycles reached by the tested spring is the fatigue life of the spring.

2) Verification of fatigue life: After a given number of cycles, if no failure occurs in the spring, the verification test passes.

3) Reliability verification: According to the given reliability target value, determine the appropriate sample number n, test under specified test conditions and requirements, and judge according to the required failure mode. If the obtained qualified number is greater than the minimum required in the table If the number of passes is r, then the verification test passes. If not, it passes.

Junction Box

JXHS series junction box advanced technology during production, stresses the details during design, implements design standard during processing, and has high consistence of product quality. It has various features such as strong damp proof, anti-corrosion and anti-electromagnetic capacities and high adjustment accuracy, and is suitable for various adverse environments. Its main advantages include:
The product uses own mold to make technologic design, the housing uses aluminum and silicon alloy and upper protrusion and lower sinking structure is used so as to ensure good sealing performance; protective grade reaches IP 68.
Main parts are imported, wiring bar is welded with precise anti-surge electronic components, which can prevent Load Cell damage caused by lightning and power grid surge voltage.
Whole device uses stainless steel grounding bolts to ensure reliable grounding during operation.
Assembly of junction box uses not-loose screws so as to avoid loss during load cell wring.
Wiring board uses combined screws for assembly, which are convenient for removal.
In order to ensure protective effect, force and diameter of tightening parts have introduction.

Junction Box,3 Wire Junction Box,7 Wire Junction Box,10-Wire Normal Junction Box

SHANDONG JINZHONG SCIENCE & TECHNOLOGY GROUP COMPANY LIMITED , https://www.chinagoldbell.com