Release time：2020-01-16 18:44 Browse：
In today's rapidly developing new energy industry, every detail is related to the reliability of technological innovation and application. As a key component of connection and fixing, bolts are small, but they carry huge responsibilities and missions. Today, we will deeply discuss a fastener designed for the new energy field - carbon steel 8.8 grade new energy with outer hexagonal flange bolt extended version, using zinc-nickel alloy coating, the specification is M6*175, its application and importance in new energy equipment.
Carbon steel 8.8 grade strength and toughness
First, let's start with the material. Carbon steel grade 8.8, this label means that the bolt has undergone a rigorous heat treatment process during the manufacturing process, giving it excellent mechanical properties. The "8.8" here refers to the ratio of the tensile strength of the bolt to the yield strength, that is, the tensile strength of the bolt reaches 800MPa, and the yield strength is not less than 640MPa. Such strength design ensures that the bolt is not easy to break when it is subjected to large torque and shear force, and can meet the needs of new energy equipment in complex working conditions. At the same time, the toughness of carbon steel also ensures that the bolt can maintain the integrity of the structure when it is affected or vibrated, effectively extending the service life of the equipment.
Special needs in the field of new energy
The new energy industry, especially in the field of renewable energy such as wind and solar energy, has particularly demanding requirements for fasteners. These devices are often installed in harsh natural environments, such as high altitude, strong winds, high salt spray, etc., which poses extremely high challenges to the corrosion resistance and durability of fasteners. Therefore, it is very important to choose the suitable fastener material and its surface treatment process.
Advantages of zinc-nickel alloy coating
Based on these requirements, the bolt is coated with zinc-nickel alloy. As a new type of environmentally friendly coating material, zn-Ni alloy has higher corrosion resistance than the traditional zinc coating. It can maintain excellent stability in a wider range of pH values and effectively resist the erosion of harsh environments such as salt spray and humidity. In addition, the zinc-nickel alloy coating also has good wear resistance and scratch resistance, which can maintain the surface finish during long-term use and reduce maintenance costs.
Design features of outer hexagon flange bolts
The outer hexagonal design allows the bolt to better transfer torque during tightening, avoiding slippage or thread damage. At the same time, the outer hexagon is also easy to use tools such as wrenches for quick installation and disassembly, improving work efficiency. The design of the flange structure increases the contact area between the bolt and the connector, improves the stability and sealing of the connection, and is especially suitable for occasions requiring greater pressure or vibration.
The necessity of an extended edition
In new energy equipment, such as the tower tube connection of large wind turbines, the bracket fixing of solar panels, etc., often requires longer bolts to ensure the stability of the connection. As a result, an extended design of the bolt (M6*175) was created. The lengthened screw part not only increases the connection depth, but also improves the strength and stability of the connection, effectively resisting the deformation or loosening caused by external forces such as wind load and snow load.
Application examples and effects
Taking wind power generation as an example, the extended version of carbon steel 8.8 new energy external hexagonal flange bolt plays an important role in the connection between the tower barrel and the foundation and the tower barrel and the engine room. They are closely connected to the various components to ensure the stable operation of the entire wind turbine. Over a long period of operation, these bolts demonstrate excellent corrosion resistance and durability, reducing the number of downtime caused by fastener failures and improving the overall operational efficiency of the wind farm.
Conclusion
In summary, carbon steel 8.8 grade new energy external hexagonal flange bolt extension version, with its excellent mechanical properties, good corrosion resistance and unique design characteristics, has been widely used in the field of new energy. It not only guarantees the stable operation of new energy equipment, but also promotes the technological progress and development of the entire industry. With the continuous growth of the new energy industry, it is believed that this bolt will continue to play an important role in building a green, low-carbon and sustainable energy system.
