The advantages and disadvantages of W steel belt protector can be summarized as follows:
Advantages:
1. High rigidity and strength: W steel belt protection plate is made of high-strength alloy strip steel, which has high rigidity and strength. This makes it not easy to deform when under pressure and can maintain the stability of the structure.
2. High bending section modulus: The bending section modulus of the W steel belt protection plate is significantly improved, as described in the reference article, some are 37 times higher, and some are as high as 54 times. This feature allows it to provide better support and protection in the face of external pressures.
3. Tensile strength enhancement: During the cold pressing process, the W steel strip protector will have a hardening effect, thereby improving its tensile strength. According to the reference article, the tensile strength can be improved by 12%-15%, and even reach a 28-46% enhancement in some cases.
4. High section utilization: The section utilization rate of the W steel belt protection plate is high, which means that under the same amount of material, it can cover a larger area and provide more comprehensive protection. At the same time, this also makes its cost relatively low, more economical and practical.
5. Easy to install and use: W steel belt guard plate can be used in combination with anchor rod to connect dispersed anchor rod to form an overall bearing structure. This design not only improves the integrity of the bolt, but also makes the installation and use process more convenient and fast.
6. Widely used: W steel belt protection plate is widely used in underground mines, working face cutting, tunnels and other fields of roadway support, especially suitable for dealing with unstable surrounding rock. It can significantly reduce support costs and save support steel.
Disadvantages
1. Thin and easy to damage: Because the W steel belt protection plate is relatively thin, when the roadway pressure is large, the bracket may be pressed into or through the steel belt, resulting in shear and tear damage of the steel belt. Therefore, the specific supporting conditions and pressure conditions need to be taken into account when using.
2. There may be problems at the welding: Although the article does not directly mention the problem at the welding of the W steel strip protection plate, in general, the steel strip processed by welding may have poor overall mechanical properties and the risk of easy cracking at the welding. Therefore, it is necessary to ensure the quality of welding and check maintenance regularly before use.
In summary, the W steel belt guard plate has the advantages of high rigidity and strength, high modulus of bending section, enhanced tensile strength, high section utilization rate, easy installation and use, and wide application. However, its thin and easy to damage and possible problems in the welding also need to be paid attention to when using.
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