Release time：2020-01-16 18:44 Browse：
In the field of machinery and manufacturing, fasteners as a key component to connect various components, its importance is self-evident. Among them, the extended outer hexagonal screw with its unique advantages plays a vital role in fastening the motor housing and other application scenarios. In this paper, the characteristics of lengthening outer hexagonal screws, the application of GB5782 standard, the advantages of 8.8 strength, and the prospect of its future application are discussed in depth.
Lengthened outer hex screw features
The extended outer hexagonal screw, as the name suggests, is a fastener with a longer screw length and a hexagonal head. This design is not only easy to tighten and disassemble with tools such as wrenches, but also because of its long screw length, it can play a role in thicker materials or situations where deep connections are required. The head design of the outer hexagon provides a larger torque transfer area, making the fastening process more stable and reliable. In addition, the extended outer hexagonal screw also has good corrosion resistance, fatigue resistance and high temperature stability, and can adapt to a variety of harsh working environments.
GB5782 standard application
GB5782 standard is China's national standard for external hexagonal bolts, the standard specifies the size of the bolts, tolerances, materials, mechanical properties and surface treatment requirements, to ensure the quality and interchangeability of products. In the application of motor housing fastening, GB5782 standard extended outer hexagonal screws have become the first choice of many manufacturers because of their strict quality control and wide applicability. Class A and Class B bolts specified in the standard are suitable for occasions with high strength and accuracy requirements, such as the assembly of precision equipment such as motors. These bolts not only have good mechanical properties, but also further improve their corrosion resistance and service life through surface treatment such as galvanizing and blackening.
Advantages of Class 8.8 strength
In the field of fasteners, class 8.8 refers to the ratio of the tensile strength of the bolt to the nominal stress cross-sectional area of 8.8. This level of bolt has high strength and hardness, and can withstand large tensile and shear forces, so it is widely used in occasions requiring high strength fastening. For the tightening of the motor shell, 8.8 extended outer hexagonal screws can not only effectively prevent loosening and falling off, but also withstand vibration and impact loads during the operation of the motor to ensure the stability and safety of the motor operation. In addition, 8.8 class bolts also have good machinability and economy, which can meet the needs of large-scale production and cost control.
Application prospect of lengthening outer hexagonal screws
With the continuous development of industrial technology and the rise of intelligent manufacturing, the application prospects of lengthening outer hexagonal screws will be broader. First of all, in high-end manufacturing fields such as new energy vehicles and aerospace, the quality and performance requirements for fasteners are increasing. Extended outer hexagonal screws with their excellent performance and reliable quality will play a greater role in these fields. Secondly, with the improvement of industrial automation and intelligence, robots and automation equipment are more and more widely used in production lines. These devices have high requirements for the accuracy and reliability of fasteners, and the lengthened outer hexagonal screws can meet these needs. In addition, in the field of renewable energy such as wind power and photovoltaic, lengthened outer hexagonal screws are also favored for their corrosion resistance and fatigue resistance.
In the future, with the progress of material science and the improvement of manufacturing process, the performance of lengthened outer hexagonal screws will be further improved. For example, bolts made of high-strength alloy materials will have higher tensile strength and lighter weight; The innovation of surface treatment technology will improve the corrosion resistance and wear resistance of bolts; The application of intelligent manufacturing technology will realize personalized customization and rapid production of bolts. These advances will promote the application and development of lengthened outer hexagonal screws in more fields.
In summary, the importance of lengthening the outer hexagonal screw as a key component in fastening the motor housing and other application scenarios is self-evident. The strict requirements of GB5782 standard and the excellent performance of Class 8.8 strength ensure the quality and reliability of the product. With the continuous development of industrial technology and the rise of intelligent manufacturing, the application prospects of lengthening outer hexagonal screws will be broader. In the future, we have reason to believe that this fastener will play an important role in more areas and contribute to the development of the manufacturing industry.
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