खुदाई करने वाले दांत

Carbide tungsten carbide road teeth, chiseling teeth, digging teeth, pavement teeth, and road milling teeth are primarily used on road milling machines, a key type of machinery for asphalt pavement maintenance and construction, and a key piece of equipment for asphalt concrete pavement maintenance and construction. They are primarily used for excavating and renovating asphalt concrete surfaces on highways, urban roads, airports, freight yards, and other applications. They can also be used to remove road imperfections such as bumps, oil ripples, reticulation, and rutting. They can also be used to excavate potholes and grooves, and to smooth roughened cement pavement and surface misalignment.

During use, carbide milling teeth are subjected to cyclic loads and friction, generating transient high temperatures (the surface temperature of the alloy tooth rises from room temperature to 800-10,000°C in the 0.1-second interval between the alloy tooth and the stone or cement). This causes thermal fatigue and mechanical stress on the alloy, leading to micro-flaking, micro-fractures, and thermal fatigue cracks on the alloy surface. Using conventional medium- and coarse-grained carbide for milling teeth is prone to breakage and spalling, preventing optimal service life. Ultra-coarse-grained carbide, with its higher fracture toughness, impact toughness, and thermal conductivity, offers improved resistance to thermal fatigue and thermal shock. Therefore, it offers optimal performance in applications where thermal fatigue and thermoplastic deformation are the primary wear modes, coupled with high impact loads.