Similar to other metal parts, fastener failures include overload, corrosion-related cracking, embrittlement, creep and fatigue. Due to external loads, fastener overload may occur during installation or use.
The investigation of fastener overload failure should include the evaluation of material performance, the main purpose is to determine the cause of fastener damage, such as the strength of the fastener and the load imposed on the fastener.
Stress corrosion cracking or hydrogen embrittlement, which is common in some metals, is also an important failure mode for fasteners when they are subjected to static tension during service.
In view of the expected stresses of fasteners, materials and environments must be carefully considered to appropriately mitigate stress corrosion cracking or hydrogen embrittlement.
During the electroplating process, hydrogen is likely to diffuse into the fastener, causing hydrogen embrittlement. In order to reduce hydrogen embrittlement of susceptible materials, fasteners must be treated with hydrogen removal.
Fatigue is the most common form of fracture in metal structures, accounting for 80% of fractures. Fasteners are no exception. Fatigue is also the most common cause of fracture.
When the cyclic load exceeds the fatigue strength of the material, when it is loaded for a sufficient period of time, fatigue cracks will initiate and propagate on the fastener. Fastener material, geometry, stress amplitude, average stress and assembly parameters all affect fatigue performance.
The fastener assembly process is the most important, but it is often overlooked when analyzing the cause of its fracture. It is also the main source of fastener fatigue fracture.
What Is the Importance of the Sealing Performance of Plastic Drum Caps?March 13, 2023The types of plastic barrels are diverse, but they are mainly used for storage and transportation, and the key performance of these two purposes is sealing. When customers purchase plastic drum caps, ...view
National Holiday NotificationJune 30, 2022According to the relevant regulations of the General Office of the State Council, combined with the actual situation of our company, after research and decision, the specific arrangements for our Nati...view
Drum ClosureJune 5, 2023Closures are devices and techniques used to close or seal a bottle, jug, jar, tube, can, etc. Drum closures are used to close and seal drum or barrel. Closures can be a cap, cover, lid, plug, etc. Dru...view
This Modification Of The Import And Export Commodity Inspection Law Is Related To The Packaging Of Export Commodities!July 1, 20221. Amendments to the Road Traffic Safety Law of the People's Republic of ChinaThe first paragraph of Article 20 is amended to read: "The driving training of motor vehicles shall be socialized...view
Zinc plugJune 5, 2023A zinc plug is a popular solution for preventing rust on steel drums. A steel drum is a standard in many industries for packaging and transportation of a wide variety of materials. However, steel is s...view
Do Steel Drum Manufacturers Need To Develop Emergency Plans For Hazardous Waste? How To Make It?July 1, 2022Article 112, Item 12 of the "Law on the Prevention and Control of Environmental Pollution by Solid Wastes" stipulates: in violation of the provisions of this law, "if no hazardous waste...view
EN
ko 
fr 
de 
es 
it 
ru 
pt 
ar 
vi 
th 
