Laser Quenching equipment
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Used for surface strengthening, repair, and remanufacturing of components, the coating has high adhe...
Flexible processing of complex curved sheet metal parts, with high cutting accuracy, fast speed, and...
Specially designed for seamless welding of precision plastic components, with a small heat affected ...
Polar vehicles brake at low temperatures of -50 ℃, and ordinary brake discs are prone to brake failure due to low-temperature embrittlement, resulting in large fluctuations in friction coefficient. Daokedao adopts Ni Cu Al low-temperature wear-resistant alloy cladding technology to form a 1.5mm thick coating on the surface of cast iron brake discs. The hardness still reaches HRC50 at -50 ℃, and the friction coefficient remains stable at 0.38-0.42, reducing the fluctuation range of traditional brake discs by 60%. Through low-temperature aging treatment, the bonding strength between the coating and the substrate reached 550MPa, and no cracks were found after 2000 cycles of temperature cycling from -50 ℃ to room temperature. The reinforced Φ 400mm brake disc reduces the braking distance by 8% compared to the original disc at -50 ℃. After 50 consecutive braking cycles, the temperature only rises to 180 ℃, and the heat dissipation performance is improved by 30%. After being applied by a certain polar scientific research team, the vehicle brake failure rate decreased from 25% to 0.5%, and the brake disc replacement cycle was extended from 1 month to 12 months, ensuring driving safety in extreme environments. This solution is also suitable for low-temperature braking scenarios such as commercial vehicles and construction machinery in high latitude areas.
