Almost every home has a simple tool like a wrench, which is twisted once a bolt is loose. There is nothing wrong with small stationary objects, but not necessarily with high-speed rotating or moving machines.

Let's take a plane. Some important parts, such as the airframe and wing, if the bolt can not bear the actual load, or the bolt to the metal fatigue period... That will jeopardize the safety of the entire aircraft.

Why do metals also get tired? The answer is yes. It turns out that metals also suffer from fatigue after repeated stresses over a long period of time.

Then, what is the performance of metal fatigue? The ability to withstand load after metal fatigue is greatly reduced. Fatigue metals can fracture even under much less stresses than metals without fatigue.

Metal fatigue has always been regarded as one of the chief causes of aircraft crash. Due to the characteristics of metal fatigue failure, such as sudden occurrence in time, locality in location and sensitivity to environment and defects, it is not easy to be detected in time. The intelligent bolt can take the initiative to perceive the data of various loads on the bolt and feedback it to the staff. So that the staff can know the use of bolts at any time, so as to provide a scientific basis for bolt maintenance and replacement, so as to eliminate the potential accident in advance possible.

Bolts are everywhere, and safety is precious. Making smart bolts a safe "gatekeeper" is a new bright spot for high-end manufacturing. It is reported that the application market of intelligent bolts in the field of people's livelihood is very huge, only in power, shipping, construction, high-speed rail and other basic industries in the market share of about 2.5 billion yuan.