Do You Know the Daily Maintenance and Precautions for Electromagnetic Wire Rolling Mill?

Daily Maintenance Methods

Daily maintenance focuses on "inspection, cleaning, lubrication and adjustment", aiming to detect potential faults in advance, reduce wear and tear, and ensure the Electromagnetic Wire Rolling Mill operates stably at full capacity. The maintenance work should be carried out after the equipment is shut down, powered off and cooled down to ensure operational safety.

1. Roller System Maintenance (Core Component)

The tungsten carbide rolls (Φ160-280mm) are the core of the rolling mill, directly determining the precision and surface quality of the electromagnetic wire. Daily maintenance should include:

- Visual Inspection: Check the surface of the rolls for scratches, wear, cracks or foreign matter adhesion (such as metal chips, dust) before starting up each day. If scratches or wear are found, use professional polishing tools to repair them in time; if cracks occur, replace the rolls immediately to avoid affecting product precision or causing equipment damage.

- Cleaning: After daily operation, use a soft brush or compressed air (with low pressure to avoid damaging the roll surface) to remove metal chips, dust and residual lubricating oil on the rolls. Do not use corrosive cleaning agents, as they will damage the tungsten carbide surface and reduce roll life.

- Lubrication: Apply special high-temperature, wear-resistant lubricating oil to the roll bearings and transmission parts every 8 hours of operation. Ensure the lubrication is uniform, and check for oil leakage. Insufficient lubrication will cause excessive friction between the rolls and bearings, leading to overheating and wear.

- Precision Check: Use professional measuring tools to check the roll gap and rolling tolerance (required to be ±0.01mm) every 24 hours. If the tolerance exceeds the standard, adjust the roll position in time to ensure the output electromagnetic wire meets the precision requirements.

2. Transmission and Control System Maintenance

The Electromagnetic Wire Rolling Mill’s high-speed efficiency (600m/min continuous operation) and ultra-precision rolling rely on a stable transmission system and high-end thickness/width control system. Daily maintenance includes:

- Transmission Parts: Check the gears, chains, belts and other transmission components for looseness, wear or abnormal noise during operation. Tighten loose parts in time; replace worn gears or belts to avoid transmission failure. After daily operation, clean the transmission parts and apply lubricating grease to reduce friction.

- Control System: Check the operation status of the thickness and width control system, ensure the display is normal, and the parameters (such as input dimensions: thickness 0.8-8.0mm, width 2-25.0mm; output sections 20mm²) are accurate. Clean the control panel and connecting lines to avoid dust accumulation affecting signal transmission. Check the IoT remote maintenance system to ensure it is online, so that 24/7 remote maintenance support can be obtained when needed.

- Electrical Components: Inspect the circuit, junction box and electrical connectors for looseness, overheating or damage. Ensure the power supply is stable, and the grounding device is reliable to prevent electrical faults such as short circuits.

3. Annealing & Coating Modules Maintenance (Integrated Components)

The integrated annealing and coating modules are important for ensuring the conductivity and insulation quality of the electromagnetic wire. Daily maintenance should focus on:

- Annealing Module: Check the annealing temperature and time parameters to ensure they are consistent with the process requirements (to maintain high conductivity and reduce resistivity loss). Clean the annealing furnace regularly to remove oxide scale and residual impurities, which will affect the annealing effect. Check the heating element for damage, and replace it in time if it fails.

- Coating Module: Check the insulation coating (enameled, paper or polyester wrap) supply system to ensure the coating material is sufficient and the coating is uniform. Clean the coating nozzle and guide rollers to avoid coating unevenness or adhesion of foreign matter, which will affect the insulation quality and surface finish of the electromagnetic wire. After daily operation, clean the coating module to prevent the coating material from solidifying and blocking the pipeline.

4. Overall Equipment Cleaning and Inspection

- Clean the entire equipment surface, workbench and surrounding area after daily operation to remove metal chips, dust and lubricating oil, keeping the working environment clean and reducing the risk of equipment failure caused by foreign matter.

- Check the equipment’s fixed parts (such as the stand with patented design) for looseness, ensure the stand is stable, and maintain the 3x longer roll life brought by the patented design. Check the hydraulic system (if any) for oil leakage, and supplement hydraulic oil in time if the oil level is insufficient.

- Record the operation status, maintenance content and abnormal situations of the Electromagnetic Wire Rolling Mill every day, forming a maintenance log for subsequent tracking and analysis.

Key Precautions

1. Operational Safety Precautions

- Operators must be trained professionally and familiar with the equipment’s operation procedures before operating the rolling mill. Do not operate the equipment without authorization or change the operation parameters at will.

- Before starting the equipment, check whether all safety protection devices (such as protective covers, emergency stop buttons) are intact and effective. Do not remove or damage the safety protection devices during operation.

- During the high-speed operation of the equipment (600m/min), do not put hands, tools or other objects into the rolling area to avoid personal injury or equipment damage. If abnormal situations occur (such as abnormal noise, overheating, product quality defects), press the emergency stop button immediately, shut down the power supply, and handle the problem after the equipment stops completely.

- When performing maintenance, cleaning or part replacement, must cut off the power supply and hang a "maintenance in progress, no power on" sign to prevent accidental startup of the equipment.

2. Equipment Operation Precautions

- The Electromagnetic Wire Rolling Mill must be preheated for 15-30 minutes before starting up, especially the roller system and annealing module, to ensure the equipment reaches the normal working temperature, avoid thermal stress damage to the rolls and other components, and ensure product precision.

- Strictly follow the process requirements to set the input dimensions, rolling passes, annealing parameters and coating parameters. Do not exceed the equipment’s rated load (such as input thickness 0.8-8.0mm, width 2-25.0mm) to avoid overloading the equipment and causing damage.

- When replacing the specifications of the electromagnetic wire, adjust the roll gap, control parameters and coating parameters in time, and conduct a test run with a small batch of materials to ensure the product meets the requirements before mass production.

- Avoid long-term continuous operation of the equipment beyond the specified time. Arrange appropriate shutdown rest periods to reduce equipment wear and overheating, extending the service life of the equipment and its components.

3. Maintenance and Replacement Precautions

- Use original or matching accessories (such as tungsten carbide rolls, bearings, lubricating oil) when replacing parts. Do not use inferior accessories, which will affect the Electromagnetic Wire Rolling Mill’s performance and service life, and may even cause safety accidents.

- When replacing the rolls, pay attention to the installation accuracy, ensure the rolls are parallel and the gap is uniform, and adjust the precision to ±0.01mm after installation to avoid affecting the rolling quality.

- The lubricating oil and cleaning agents used must meet the equipment’s requirements. Do not mix different types of lubricating oil, and replace the lubricating oil regularly (according to the equipment’s operation hours) to ensure lubrication effect.

- For the IoT remote maintenance system, ensure the network is unobstructed, and do not arbitrarily disconnect the network or modify the system settings. When encountering faults that cannot be solved on site, contact the GRM supplier in time to use the 24/7 remote maintenance service.

4. Environment and Storage Precautions

- The equipment should be installed in a clean, dry, well-ventilated workshop, avoiding humid, dusty, corrosive gas or strong vibration environments, which will affect the equipment’s precision and service life.

- When the Electromagnetic Wire Rolling Mill is not in use for a long time (more than 1 week), clean the entire equipment thoroughly, apply anti-rust oil to the rolls, transmission parts and other metal components, cover the equipment with a dust cover, and cut off the power supply.

- Regularly check the working environment’s temperature and humidity, keep the temperature between 15-30℃ and humidity below 60%, to avoid the control system and electrical components being affected by moisture.