With its extensive range of structural assembly parts, Jiangsu Yongyi Fastener Co Ltd is committed to becoming a reliable brand of high-quality hot heading fasteners, high-quality connecting sub fasteners and high-security bolting solutions.
Jiangsu Yongyi’s has over 30 years of experience in fastener research and manufacturing, producing more than 50,000 tonnes of high performance fasteners annually. The company manages the complete production process of its products, including specialised bolts, nuts and washers, for connection components that feature high strength, high reliability, high adaptability, as well as high seismic resistance.
Steel structure fasteners can withstand large tensile and shear forces. For instance, high strength bolts can reach more than 1,000MPa of the tensile strength, which makes the steel structure maintain the stability when it is subjected to huge static and dynamic loads. An example of this is the frequent driving of vehicles on large bridges or the operation of heavy equipment. It is made of high strength alloy steel with special heat treatment, so the internal structure is optimised and obtains excellent mechanical properties.
“To ensure high reliability, sufficient friction is generated between the connecting parts by applying pre-tension to the bolts, during the installation process. This connection method can effectively avoid loosening and slipping of the connection parts during long-term use,” explains Jiangsu Yongyi.
The company adds: “Steel structure fasteners also feature the ability to adapt to different steel structure forms and component connection requirements. Whether it is in the regular shape of the beam, column connection, or in complex spatial steel structure joints, fasteners can be flexibly used for connection. Moreover, it can be applied to the connection between components of different materials, such as ordinary carbon steel and low alloy steel, to achieve a reliable connection.”
Under dynamic loads, such as during an earthquake, the steel structure fastener connected construction has good ductility and energy dissipation capacity. Since the fastener connection is not a completely rigid connection, under seismic force, the connection part can produce deformation in a certain degree without failure, and the seismic force is consumed through the relative sliding and deformation between the components, thus reducing the damage of the overall structure.
Having spent a decade in the fastener industry experiencing every facet – from steel mills, fastener manufacturers, wholesalers, distributors, as well as machinery builders and plating + coating companies, Claire has developed an in-depth knowledge of all things fasteners.
Alongside visiting numerous companies, exhibitions and conferences around the world, Claire has also interviewed high profile figures – focusing on key topics impacting the sector and making sure readers stay up to date with the latest developments within the industry.
