Are there any requirements for the materials used in the manufacture of lifting hooks?
1. lifting hooks are divided into two types according to their appearance: single hooks and double hooks: single hooks are divided into short hooks and long (B). The difference between the two is the difference in length of the hook body. Install a balance pulley on the long hook set, which can be used for single-rate pulley sets with small lifting weight. The cross-sectional shape of the hook is round, square (usually in sheet type, and its hook mouth is generally equipped with mild steel pads), trapezoidal, and T-shaped. According to its production method, forging hooks are divided into two types: sheet type and plate hooks. The plate hooks can be made into single hooks (37.5-175 tons) and double hooks (100-350 tons).
2. The material of the lifting hook requires high strength, plasticity, and toughness, and will not break suddenly. High-strength materials are generally sensitive to cracks and defects. The higher the strength of the material, the greater the possibility of sudden breakage. Therefore, hook materials are widely used in low-carbon structural steels such as DG20/DG20Mn and low-carbon alloy structural steels.
3. Dangerous cross-section and drooping section of lifting hook: Heavy objects are hung on it by a wire rope, which is mainly subject to shear stress.
Cross sectional area: The inner tensile force, outer tensile force, and inner tensile stress are all greater than 1 times the external force, and they mainly bear bending moments and tensile stresses.
Hook tail thread part: The thread part of the hook tail is a dangerous section of tension and mainly withstands tensile stress.
4. Quickly determine whether the opening degree of the lifting hook reaches the scrap standard, and the opening degree S=0.75D; h=D. Mastering this method can quickly determine whether the hook can continue to be used or has reached the scrapping standards, which is very practical for those engaged in lifting work.
1. lifting hooks are divided into two types according to their appearance: single hooks and double hooks: single hooks are divided into short hooks and long (B). The difference between the two is the difference in length of the hook body. Install a balance pulley on the long hook set, which can be used for single-rate pulley sets with small lifting weight. The cross-sectional shape of the hook is round, square (usually in sheet type, and its hook mouth is generally equipped with mild steel pads), trapezoidal, and T-shaped. According to its production method, forging hooks are divided into two types: sheet type and plate hooks. The plate hooks can be made into single hooks (37.5-175 tons) and double hooks (100-350 tons).
2. The material of the lifting hook requires high strength, plasticity, and toughness, and will not break suddenly. High-strength materials are generally sensitive to cracks and defects. The higher the strength of the material, the greater the possibility of sudden breakage. Therefore, hook materials are widely used in low-carbon structural steels such as DG20/DG20Mn and low-carbon alloy structural steels.
3. Dangerous cross-section and drooping section of lifting hook: Heavy objects are hung on it by a wire rope, which is mainly subject to shear stress.
Cross sectional area: The inner tensile force, outer tensile force, and inner tensile stress are all greater than 1 times the external force, and they mainly bear bending moments and tensile stresses.
Hook tail thread part: The thread part of the hook tail is a dangerous section of tension and mainly withstands tensile stress.
4. Quickly determine whether the opening degree of the lifting hook reaches the scrap standard, and the opening degree S=0.75D; h=D. Mastering this method can quickly determine whether the hook can continue to be used or has reached the scrapping standards, which is very practical for those engaged in lifting work.
1. lifting hooks are divided into two types according to their appearance: single hooks and double hooks: single hooks are divided into short hooks and long (B). The difference between the two is the difference in length of the hook body. Install a balance pulley on the long hook set, which can be used for single-rate pulley sets with small lifting weight. The cross-sectional shape of the hook is round, square (usually in sheet type, and its hook mouth is generally equipped with mild steel pads), trapezoidal, and T-shaped. According to its production method, forging hooks are divided into two types: sheet type and plate hooks. The plate hooks can be made into single hooks (37.5-175 tons) and double hooks (100-350 tons).
2. The material of the lifting hook requires high strength, plasticity, and toughness, and will not break suddenly. High-strength materials are generally sensitive to cracks and defects. The higher the strength of the material, the greater the possibility of sudden breakage. Therefore, hook materials are widely used in low-carbon structural steels such as DG20/DG20Mn and low-carbon alloy structural steels.
3. Dangerous cross-section and drooping section of lifting hook: Heavy objects are hung on it by a wire rope, which is mainly subject to shear stress.
Cross sectional area: The inner tensile force, outer tensile force, and inner tensile stress are all greater than 1 times the external force, and they mainly bear bending moments and tensile stresses.
Hook tail thread part: The thread part of the hook tail is a dangerous section of tension and mainly withstands tensile stress.
4. Quickly determine whether the opening degree of the lifting hook reaches the scrap standard, and the opening degree S=0.75D; h=D. Mastering this method can quickly determine whether the hook can continue to be used or has reached the scrapping standards, which is very practical for those engaged in lifting work.
Inquiry
Please leave us your requirements, we will contact you soon.