High strength combination screw is a new type of fastener material, composed of chemical agent and metal rod body, suitable for curtain wall, dry hanging marble construction after assembly of embedded parts, equipment installation, highway, bridge guardrail and other places. This paper will introduce the characteristics of high strength combination screws and discuss the methods to solve the problem of loosening.
First, the characteristics of high-strength combination screws: special structural design: high-strength combination screws use chemical adhesion and are fixed by pre-embedding. Its special structural design gives it good low expansion stress and is suitable for applications with small edge spacing and concrete cracking requirements. Stability and weather resistance: High strength combination screws use glass sealed packaging, and do not contact with chemicals and atmosphere, to maintain stable performance. The transparent glass tube can visually check the quality of the screws, and the reliability is high. Convenient construction: High strength combination screws are filled with vulcanized glue, which has excellent fluidity, easy assembly, and can save construction time. Excellent performance: High strength combination screws have excellent acid and alkali resistance, low temperature resistance, aging resistance, heat resistance and seismic performance. It has good flame retardancy and resistance to wet welding.
Second, the method to solve the problem of high-strength combination screws loosening: the use of special materials resilience: engineering resin and other materials with good resilience attached to the thread of high-strength combination screws, produce mechanical friction between the nut or product materials, produce vibration and resistance, and completely solve the loosening problem. Dispensing: The threads of high-strength combination screws are coated with special glue such as rot-resistant glue, which has the advantages of high viscosity and non-toxic. After drying, the glue is combined with the nut or product thread to produce a strong tightening effect and play a reliable anti-loosening role. Conclusion: High strength composite screws have special structural design and excellent performance, and are suitable for various application scenarios. By using resilient materials and dispensing methods, the loosening problem of high-strength combination screws can be effectively solved to ensure the firmness of the connection. In practical applications, the appropriate solution is selected according to the specific needs, and the correct installation and construction methods are followed.
