Daily Maintenance Of The Hot Rolling Machine

The daily maintenance of the hot rolling machine should follow the principles of systematicness and prevention, and combine measures such as lubrication management, inspection of key components, and intelligent monitoring. The specific operations are as follows:
1. Basic maintenance norms
Lubrication system management
Use high-temperature-resistant lubricating oil (maximum working temperature ≥ 200℃), check the oil level weekly, and replenish it every two weeks in high-temperature environments.
Regularly clean the lubrication pipelines, replace the lubricating oil every quarter to avoid bearing wear due to deteriorated oil quality.
Implement a fixed-point and quantitative lubrication strategy, use high-viscosity grease (such as EP2 grade) for key parts such as gearboxes and bearings.
Roller and roller track maintenance
Roller inspection: Measure the difference in roller diameter daily (≤ 1mm), replace when surface cracks or wear depth > 0.5mm occur.
Roller track cleaning: Clean the oxide scale weekly, check the water cooling system of the bearing seat and bolt tightness, and prevent jamming.
Detect the alignment accuracy of the rollers by applying high-viscosity grease scraping method, and adjust in time when abnormal.
2. Special maintenance points
Heating system maintenance
Monthly calibration of the temperature control system to ensure the deviation of heating temperature ≤ ±5℃.
Clean the oxide scale in the furnace (suggested once every six months), to avoid steel billets scratching the furnace wall.
Electrical and transmission system
Check the vibration value of the motor (≤ 4.5mm/s) and the temperature of the bearing (≤ 80℃), stop the machine for troubleshooting when abnormal.
Open the reducer every six months to check for gear wear and replace the sealing parts to ensure the coupling has no offset.
Safety and intelligent upgrade
Install an intelligent monitoring system to collect vibration and temperature data in real time and issue early warnings for faults.
Operators must wear heat-resistant equipment and immediately cut off the power supply in emergency situations.
3. Long-term maintenance strategies
File management: Establish maintenance logs to record data such as bearing temperature and abnormal sounds, to achieve early warning of component lifespan.
Preventive maintenance: Develop a CBM (Condition-Based Maintenance) plan, adjust the maintenance cycle dynamically based on equipment load.