Name: Liner Plate Innovation in Material System • Bimetallic Composite Process The base body adopts modified high-manganese steel, and a 3mm-thick high-tungsten carbide layer is compounded on the impact surface, achieving the coordination of a surface hardness of 62-65HRC and an impact toughness of the base body AKv≥80J. • Heat Treatment Optimization Two water quenching and tempering treatments (quenching at 1050°C + tempering at 250°C) are carried out to eliminate the casting stress and at the same time increase the work hardening rate to HB450+. Breakthrough in Structural Design • Crushing Chamber with Gradually Changing Curvature Three-dimensional parametric design: • The curvature radius of the feeding section R = 800mm (ensuring that large pieces of materials can be bitten in) • The curvature gradient change rate of the crushing section is 1:12 (enhancing the lamination crushing effect of the materials) Surface Strengthening Technology • Micro-texture for Drag Reduction An array of rhombic pits is processed on the surface through micro-milling, reducing the friction coefficient by 23% and decreasing the adhesion of clay. Name: Hammer Head Gradient Composite Casting Technology Using high-chromium alloy as the base body and adding cemented carbide particles at the hammer end to form a gradient structure with a surface hardness of ≥62HRC and a base body toughness of ≥35J/cm², achieving the coordinated optimization of impact resistance and wear resistance. Dynamic Balance Design The counterweight of the hammer head is optimized through finite element analysis, and the weight tolerance of a single hammer head is controlled within ±0.15kg to ensure that the dynamic balance accuracy of the rotor assembly reaches grade G6.3 and the vibration value is ≤4.5mm/s. Innovation in Reversible Structure The bimetallic composite hammer head is provided with 4 effective striking edges. It can be turned 180° for use through the hydraulic quick-change system, effectively extending the service life by 30%.
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