Release time：2020-01-16 18:44 Browse：
Carbon steel material: tough and durable foundation
Carbon steel, as one of the main materials for bolt manufacturing, occupies an important position in the market for its excellent mechanical properties and cost effectiveness. It is mainly composed of iron and carbon, and by adjusting the carbon content and adding other alloying elements, different levels of strength and toughness can be obtained. For blackened carbon steel elongated hex bolts, the selection of steel with appropriate carbon content can ensure sufficient tensile strength and yield strength to meet the mechanical challenges under various complex working conditions, and can take into account good machinability and cost effectiveness.
Blackening treatment: double improvement of anti-corrosion and aesthetics
Blackening treatment, also known as blackening oxidation or bluing treatment, is a surface treatment technology that forms a dense black oxide film on the surface of steel. This treatment not only gives the carbon steel bolt a deeper and more stable appearance, but more importantly, significantly improves its corrosion resistance. In humid, acid and alkali and other harsh environments, the black film can effectively isolate the direct contact between air and water, slow down the oxidation rate of steel, thus extending the service life of bolts. In addition, the blackening treatment also enhances the hardness of the bolt surface, improves the wear resistance, and further protects the bolt from damage during frequent disassembly.
Extended hex design: flexible and efficient combination
The unique feature of the carbon steel blackened extension hex bolt is its dual design of "lengthening" and "hex". The extension allows the bolt to be easily used in the connection of deep holes or in the case of large pre-tightening forces, and can be tightened without additional auxiliary tools, greatly improving the installation efficiency. The inner hexagon design has higher tightening torque transfer efficiency and better anti-loosening performance than the traditional outer hexagon bolt. The hex head is easy to tighten using a dedicated hex wrench or wrench set, which can more accurately control the tightening force and reduce the safety hazards caused by excessive tightening or loosening. At the same time, the design of the hex head also reduces the contact area between the bolt head and the workpiece surface, reduces friction and wear, and extends the service life of the bolt and the workpiece.
Wide application: from daily to high-end manufacturing leap
Carbon steel blackened lengthened hexagon bolt has been widely used in all walks of life because of its excellent performance and flexible design. In the automotive industry, they are used to tighten core components such as engines and transmissions to ensure the power transmission and safety performance of vehicles; In the field of machinery and equipment, whether it is CNC machine tools, industrial robots or heavy machinery, they can be seen, providing a solid guarantee for the stable operation of equipment; In addition, in aerospace, shipbuilding, bridge construction and other high-end manufacturing fields, carbon steel blackened and lengthened hex bolts also play an irreplaceable role, and their high reliability and long life have become the basic requirements for fasteners in these fields.
