Maijin is specialized in all various custom-made CNC machining parts and CNC milling parts as well as non standard fasteners.
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Maijin is specialized in all various custom-made CNC machining parts and CNC milling parts as well as non standard fasteners.
Many people may be confused, steel and carbon materials are so strong, how can the high-strength bolts made of it cause fatigue? In fact, the bending stiffness of bolts made of carbon steel materials is relatively good, but due to long-term use, there will be interaction force in the part. If the interaction force reaches a certain zero point, the bolt will have cracks, and the crack is only the D step of bolt fatigue. Why do bolts cause fatigue? Does the higher the strength, the easier it is to cause fatigue? In fact, there is no direct relationship between bolt fatigue and strength. Even ordinary bolts are not so strong, but fatigue will occur when they are used. The application field of high-strength bolts requires a certain strength characteristic, which will increase the fatigue effect of the bolts. In our daily production and life, high-strength bolts are prone to fatigue, but this does not mean that ordinary bolts are not easy to cause fatigue. Let's take a closer look at the factors that cause fatigue of bolts. In use, the change of local stress will cause the weak anchor points of bolts to be damaged and cracks will occur. The actual process is: the attraction effect causes the anchor point of the bolt to corrode, and the bolt part produces a crack. Under the direct influence of the time period, the crack increases, and after reaching a certain critical point, the bolt breaks. Through the analysis, it can be found that the fatigue stress is not necessarily maintained by a large external force, so after the fatigue fracture of the bolt, it is difficult to detect the existence of the external force on the fracture port. In the case of manufacturing, the processing technology of high-strength bolts can be changed, such as adjusting the distance between the screw teeth, so that the bolts have the ability to resist such fatigue.
We have achieved the stable sales record at the forefront of our industry in providing high quality products and services to our customers.
CONTACT DETAILS
Tel / Whatsapp: +8613632562601
Email: mj@chinamaijin.com
10F, 9 Building Block B, Bao Neng Science and Technology Park, NO.1 Qing Xiang Rd, Long Hua District, Shen Zhen City, China.
