Corona treatment machines are critical industrial equipment that modifies material surfaces using high-voltage electric fields, effectively enhancing surface adhesion and printability. Given their high-voltage operation, strictly following safety protocols and conducting regular maintenance is paramount. Below is a concise summary of core safety and maintenance requirements.
Core Safety & Maintenance Checklist
Pre-operation Inspection: Check power cords, plugs, equipment integrity, grounding wires, and surrounding environment. Ensure no debris around the machine and the work area is dry and well-ventilated.
Personal Protective Equipment (PPE): Wear anti-static gloves, goggles, and anti-static clothing/insulated shoes if necessary. Prevent ozone irritation; never touch electrodes with bare hands.
Safe Operation: Follow operating procedures strictly, place materials correctly, and set parameters properly. Avoid adjustments or touching live parts during operation.
Emergency Handling: Cut off power immediately, rescue with insulated tools, and seek professional help if needed. Familiarize yourself with the emergency stop button; non-professionals shall not perform maintenance arbitrarily.
Daily Maintenance: Inspect appearance and power cords daily; clean electrodes and vents weekly. Ensure power is disconnected before cleaning; do not rinse electrodes directly with liquid.
Regular Maintenance: Check the ventilation system monthly; inspect electrical connections quarterly; conduct professional annual maintenance. Regularly check electrode tooth spacing; protect against moisture and corrosion during long-term non-use.
Common Fault Handling: Address issues like failure to start, poor treatment effect, overheating, and abnormal discharge. Record maintenance details; most faults require professional technicians.
High-Voltage Safety Precautions
Safety is the top priority due to the extremely high voltage generated during operation. Wear full PPE (insulated gloves, goggles, anti-static clothing, insulated shoes) and never touch live parts (electrode boxes, high-voltage cable connectors) with bare hands or metal accessories. Ensure reliable grounding, as it is critical for preventing charge accumulation and electric shock. Maintain a safe distance from the high-voltage discharge area during operation; perform maintenance only after complete power-off and discharge confirmation. Ensure good ventilation to expel ozone (O₃) generated by corona discharge and regularly check ventilation ducts for blockages. In emergencies, immediately cut off power (using the emergency stop button or main switch) and rescue with insulated tools. For abnormal discharge, smoke, or fire, cut off power immediately, extinguish with CO₂ or dry powder fire extinguishers, and notify professionals.
Key Daily Maintenance Points
Proper maintenance ensures stable operation, extends service life, and indirectly guarantees safety. Clean electrodes regularly with a soft brush and special cleaning agents (never rinse with water) to avoid dust affecting discharge and insulation. Keep the equipment and environment clean to prevent overheating or short circuits. Conduct daily pre-start visual inspections for damage, intact power cords, and reliable grounding. Check electrode gap weekly/monthly and clean vents/ducts for good heat dissipation. Have professionals inspect internal electrical connections, component aging, and calibrate parameters quarterly/annually. Use only manufacturer-specified parts for replacements (electrodes, cables, fuses) and avoid improper substitutes.
Important Reminders
Carefully read and understand the equipment manual and safety guidelines before operation and maintenance. Ensure operators and maintenance personnel receive professional training on equipment principles, risks, and emergency procedures. Avoid working alone during internal maintenance; have at least two people (one operator, one supervisor). For long-term non-use, disconnect power, protect against moisture and dust, and store in a dry, well-ventilated area. Strict adherence to protocols and vigilance are fundamental to ensuring personal safety, smooth production, and extended equipment life.