Summer Maintenance | High-Temperature Protection Tips for Extrusion Equipment: Avoiding Breakdowns and Ensuring Stable Production

Warm Reminder for Operation and Maintenance of Extrusion Equipment in High-Temperature Season

As temperatures continue to rise, extrusion equipment enters a critical period of high-temperature and high-load operation. To ensure stable equipment operation and prevent failures caused by high temperatures, please pay attention to the following maintenance points:

Core Temperature Control and Cooling System:

1. Check cooling passages: In summer, cooling water temperature is high. Be sure to check the operation of the water pump and whether the pipelines are unobstructed. Use softened water or distilled water as the cooling medium, and regularly clean scale from the cooling water channels of the barrel, screw, and reducer to prevent material decomposition or component overheating due to poor heat dissipation.

2. Clean heat dissipation components: Regularly clean dust and debris from the main motor fan, cooler (radiator), and electrical control cabinet air conditioner/filter screen. Poor ventilation can cause motor overload tripping or overheating and failure of electrical components.

3. Factory external cooling water circulation system inspection: Check that the external cooling circulation pipelines are unobstructed and free of blockages, and regularly clean and replace pipeline filter elements; monitor the operating pressure, flow, and working condition of the circulation water pump; promptly clean sludge, debris, and algae inside the cooling tower and water tank to ensure stable external water supply pressure and sufficient cooling water flow, providing reliable cooling assurance for the temperature control system of the entire line of equipment.

4. Inspection of the cooling system of a single-screw extruder: Regularly inspect the cooling water circulation pipelines of the feeding section and gearbox of the single-screw extruder, and strictly ensure accurate and stable temperature control of the feeding section; comprehensively inspect the unobstructedness of the gearbox cooling pipelines, focusing on checking whether there is leakage, blockage, or scaling in the pipelines, to ensure that the gearbox heat dissipation performance meets standards and prevent high temperatures from causing lubricating oil failure and transmission component damage, which may lead to equipment shutdown failures.

5. Inspection of the cooling system of a parallel twin-screw extruder: Comprehensively inspect the equipment water circulation pipelines to ensure there is no leakage or dripping; verify the temperature of each area of the barrel to ensure temperature control accuracy meets standards; check that the solenoid valves of each section of the barrel respond sensitively and work normally; check that the circulating water tank water quality is clear and clean, and it is strictly prohibited to use or add corrosive liquids and inorganic salt additives in the water tank; dredge and inspect the water circulation heat exchanger to ensure smooth heat exchange and stable cooling circulation.

6. Inspection of the roll cooling pipelines of the three-roll calender: Inspect the cooling circulation pipelines of each roll one by one to confirm that the rotary joints operate smoothly without water leakage or sticking; check pipeline sealing and cooling water circulation status, regularly replace the circulating water inside the rolls, and uniformly use industrial soft water or distilled water to effectively avoid problems such as pipeline blockage, leakage, and insufficient water flow, stabilize roll temperature control accuracy, and ensure production line capacity and product quality.

7. Inspection of the cooling pipelines of the roll temperature control system: Comprehensively inspect the cooling pipelines of the temperature control system matched with the rolls, regularly clean pipeline filter elements and dredge heat exchanger pipelines to ensure smooth circulation of the cooling medium, normal operation of the heat dissipation device, and accurate temperature control signal feedback; prevent the superposition of high summer ambient temperatures and equipment operating heat loads, and eliminate equipment and quality failures such as temperature control failure, roll overheating, and product thickness deviation.

Moisture-proof and Dust-proof of Electrical System

1. Electrical control cabinet heat dissipation: igh temperatures are accompanied by high humidity. The electrical control cabinet should be isolated from high-temperature and dust sources as much as possible. If the ambient temperature is too high, turn on the cabinet ventilation or cooling equipment to ensure the internal temperature does not exceed 40∘C, and strictly prevent electrical components from aging or losing control due to high temperatures.

2. Anti-condensation treatment: During the rainy season or when the equipment is stopped, pay attention to checking the sealing of the electrical control cabinet, and if necessary, turn on the moisture-proof heating device inside the cabinet to prevent the circuit board from short-circuiting due to moisture.

Transmission and Lubrication System

1. Oil and oil level: Under high temperatures, lubricating oil viscosity tends to decrease. Please check the oil level and oil quality of the reduction gearbox and gearbox, and if necessary, replace with high-viscosity gear oil specially for summer. Ensure the oil circuit circulates smoothly to avoid oil seal leakage or gear wear caused by excessively high oil temperature.

2. Key fastening: Thermal expansion and contraction can easily cause bolts to loosen. After shutdown, while hot (be careful of burns) or at regular intervals, check the tightening condition of the die head flange, screw connectors, and safety devices.

3. Good equipment operating condition is the guarantee of production capacity. If you encounter any technical difficulties during equipment inspection, maintenance, or production, or need original factory spare parts support, please contact us at any time!