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Repair plan for roller shaft of roller press machine
Date:2025-11-28 15:02     Source:daokedao     Browse:6

The roller shaft of the roller press machine is subjected to high-pressure wear during cement and ore crushing, and the surface is prone to pits and cracks. The traditional repair life is only 3-6 months. Daokedao adopts high chromium cast iron+nano ceramic composite melting technology, with a roller surface hardness of HRC65, a 4-fold increase in wear resistance, and an impact toughness of ≥ 15J/cm ². Through segmented melting and stress relief process, the dimensional tolerance of the repaired roller shaft is ± 0.03mm, and the flatness error is ≤ 0.05mm/m. The repair cycle for the Φ 800mm roller shaft is 48 hours, and the service life is extended to 12-18 months after repair. After application in a certain cement plant, the crushing efficiency of the roller press machine increased by 15%, the cement fineness compliance rate increased from 90% to 99%, and the annual cost of roller shaft replacement was saved by 300000 yuan.

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