 |
Material: 20MnSi、20Mn2、25MnV、23MnNimocr54
Commonly used specifications: φ22×86, φ26×92, φ30×108, φ30×120, φ34×126, φ34×136
Usage: Circular chain products have a wide range of applications, such as lifting chains, mining chains, marine chains, binding chains, furnace chains, slag discharge chains, lifting chains, decorative chains, etc. The most commonly used ones are lifting chains and mining chains. The strength of the lifting circular chain is divided into 60 levels, 70 levels, 80 levels, 100 levels, and 100 levels from low to high. The mining circular link chain is divided into B-level chain, C-level chain, D-level chain, and D-level chain. The commonly used material now is 25MnV, which can meet the requirements of general working conditions; The best hoisting grade is 100 grade and mining grade C, generally using 23MnCrNiMo54. Both the material and manufacturing process are relatively complex, and the cost is relatively high. The surface of the circular ring chain is specially carburized and quenched, which has high surface hardness while maintaining high core toughness, making the chain have the characteristics of high wear resistance and high fatigue strength.
Model and meaning: ring chain products, specifications and models are generally expressed by φM×N, such as φ30×120: the bar diameter of the chain is 30mm, and the pitch (length diameter inside the ring) is 120mm.
Reference standard: GB/T 12718-12718 national standard (mining high-strength ring chain); GB/T3077 (hot rolled material standard); GB/T3078 (cold rolled material standard);
Material: 20MnSi、20Mn2、25MnV、23MnNimocr54
Commonly used specifications: φ22×86, φ26×92, φ30×108, φ30×120, φ34×126, φ34×136
Usage: Circular chain products have a wide range of applications, such as lifting chains, mining chains, marine chains, binding chains, furnace chains, slag discharge chains, lifting chains, decorative chains, etc. The most commonly used ones are lifting chains and mining chains. The strength of the lifting circular chain is divided into 60 levels, 70 levels, 80 levels, 100 levels, and 100 levels from low to high. The mining circular link chain is divided into B-level chain, C-level chain, D-level chain, and D-level chain. The commonly used material now is 25MnV, which can meet the requirements of general working conditions; The best hoisting grade is 100 grade and mining grade C, generally using 23MnCrNiMo54. Both the material and manufacturing process are relatively complex, and the cost is relatively high. The surface of the circular ring chain is specially carburized and quenched, which has high surface hardness while maintaining high core toughness, making the chain have the characteristics of high wear resistance and high fatigue strength.
Model and meaning: ring chain products, specifications and models are generally expressed by φM×N, such as φ30×120: the bar diameter of the chain is 30mm, and the pitch (length diameter inside the ring) is 120mm.
Reference standard: GB/T 12718-12718 national standard (mining high-strength ring chain); GB/T3077 (hot rolled material standard); GB/T3078 (cold rolled material standard);
