Des outils de base aux outils polyvalents : l'évolution des forets à burin, à croix et à bouton dans le concassage de roches
In fields like mining and tunnel excavation, drill bits serve as the frontline warriors in rock breaking, using their unyielding "steel bodies" to pave the way for subsequent operations. Common types of drill bits include chisel bits, cross bits, and button bits, each with unique strengths that play crucial roles under different working conditions.
Chisel Bits: A Model of Simple and Efficient Practicality
Chisel bits feature a straightforward design with a straight, chisel-shaped head, resembling a sharp "rock-cutting blade." They are typically crafted from high-quality carbide alloys, which provide exceptional hardness and superior wear resistance. In drilling operations on medium-hard rock, chisel bits deliver stable and efficient performance, quickly creating clean, standardized blast holes on tough surfaces. Thanks to their simple manufacturing process and cost-effectiveness, combined with strong practicality and economy, they are highly favored in small-scale tunnel and mine roadway excavation projects, making them a trusted "entry-level" rock-breaking tool for many engineering teams.
Cross Bits: The Powerhouse for Efficient Rock Breaking
Cross bits achieve a significant breakthrough in rock-breaking efficiency through their unique cross-shaped head design. Made from carbide alloys and refined with special processes, they boast indestructible strength along with excellent toughness, capable of withstanding high-impact drilling forces. When dealing with medium-hard to very hard rock, cross bits leverage their formidable crushing power to greatly enhance drilling speed. In scenarios like large open-pit mining that demand intense rock breaking, cross bits excel with their outstanding performance, serving as essential equipment to ensure project progress and acting as reliable allies for large engineering teams in tackling tough rock formations.
Button Bits: The Star Performer in Versatile Rock Breaking
Button bits stand out as shining stars in modern mining and tunnel drilling operations. Their heads are ingeniously embedded with multiple evenly distributed spherical carbide buttons, which may appear ordinary but are key to high-efficiency rock breaking. During drilling, these buttons function like precise "rock crushers," creating multiple fracture points simultaneously to dramatically boost crushing efficiency. Through advanced material optimization, button bits offer extreme wear resistance and impact toughness, maintaining stable and effective performance whether facing softer rock or ultra-hard formations, effortlessly handling a variety of complex geological conditions. In all kinds of tunnel and mining drilling tasks, button bits rightfully earn their status as the "go-to equipment" for engineering teams due to their all-around rock-breaking capabilities.
Lors des opérations de forage, le choix du foret approprié est crucial. Choisir le bon foret revient à équiper le projet d'un puissant brise-roche, permettant d'obtenir deux fois plus de résultats avec deux fois moins d'efforts et de poser des bases solides pour le bon déroulement de l'ensemble du projet.
