The split-type pick for rotary drilling adopts a high-quality composite structure. The core cutter head is made of high-grade low-cobalt hard alloy material, which features high hardness, wear resistance, and corrosion resistance, and can effectively resist the high-intensity friction and wear of rock and sand; the cutter body is made of 42CrMo high-strength alloy steel. After precise tempering, quenching, and heat treatment, the hardness of the cutter body is controlled within the standard range, perfectly balancing hardness and toughness, which not only ensures cutting and penetration capability but also greatly improves impact resistance and fatigue resistance, fundamentally reducing problems such as cutter breakage, chipping, and cracking in hard rock construction.
The surface of high-end rotary drilling picks is coated with a wear-resistant alloy composite layer, featuring excellent wear resistance, high-temperature resistance, and oxidation resistance, and can withstand the wear caused by highly abrasive strata and high-frequency impact operations. In response to complex working conditions such as alternating soft and hard layers, rock fragments, and strong abrasion, it can continuously maintain stable cutting performance without problems such as excessive wear, failure, etc., significantly reducing the replacement frequency of accessories and downtime, and effectively controlling engineering consumable costs.