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 ...
The wear of the main shaft of the elevator traction machine causes the elevator to shake during operation, resulting in a decrease in comfort. Traditional repairs require a 72 hour shutdown, which affects residents' travel. Daokedao adopts a night time rapid repair plan, using 40CrNiMoA alloy powder, with a shaft neck cladding layer thickness of 0.15mm, hardness HRC55-58, roundness error ≤ 0.003mm, and a clearance control of 0.005-0.01mm. The repair process only takes 8 hours (during the night shutdown period), and the elevator running vibration value is reduced from 0.5m/s ² to 0.1m/s ², which meets the GB/T 10058 elevator comfort standard. For the main shaft of the Φ 100mm traction machine, the repair cost is 20% of the new shaft, and the service life reaches 90% of the new shaft. After being applied by a property management company, the elevator failure rate decreased from 15% to 1%, and the resident complaint rate decreased by 95%, avoiding compensation losses caused by prolonged downtime. This solution is suitable for repairing the main shafts of various traction machines such as passenger elevators and freight elevators, ensuring the safety and comfort of elevator operation.
