What "invisible minefields" should be avoided in daily maintenance of glass laminated autoclaves?
Pressure control is a primary risk. As a pressure vessel, operating an autoclave at overpressure is extremely dangerous. Each piece of equipment has a designed pressure range. For example, typical operating pressures are within a certain range; if the pressure exceeds 10%, the machine must be shut down for inspection. During operation, strict adherence to operating procedures is essential, closely monitoring pressure fluctuations to avoid runaway pressure. Failure to do so can damage the equipment and potentially lead to safety incidents.
Temperature regulation is also crucial. Glass and film are temperature-sensitive. Excessively high temperatures can cause deformation and cracking of the glass, and film performance can be affected. Excessively low temperatures prevent effective fusion of the film and glass. For example, if the heating system utilizes a wraparound electric heating element, the temperature must be uniform and stable to prevent localized overheating or overcooling. Furthermore, the rate of temperature change must be minimal. For example, the jacket medium temperature change rate should be ≤5°C/min to prevent thermal stress cracking of the glass.
Cleaning and maintenance are crucial. After each use, rinse the autoclave with pure water to remove any residue. This is especially important after processing corrosive materials. Cleaning is essential to prevent prolonged contact of acids, alkalis, and other substances with the glass, which can cause corrosion. At the same time, regularly check the wear of the seals. If the mechanical seal leakage is > 5ml/h, it needs to be replaced in time to prevent gas leakage from affecting production and even causing safety problems.
Electrical system maintenance should not be ignored. When electrical equipment is operating normally, the temperature should not exceed the allowable limit. The temperature of switches, wires, motors, etc. should be tested at least once a week, and overheating should be handled in time. In particular, the cooling fan of solid-state relays must run continuously. In addition, check whether the electrical contacts are loose every month, such as the crimping of the electric heater screws in the kettle and the lead-out bolts of the head, to ensure stable electrical connections.
Lubrication and tightening work are also very important. Regularly add high-temperature grease, such as lithium-based grease, to the stirring shaft bearings, and check the bolt tightening every 3 months to prevent parts from loosening and affecting the normal operation of the equipment.
Avoid these "invisible minefields" and do a good job of daily maintenance, so that the glass laminated autoclave can operate stably and efficiently, providing guarantees for the production of high-quality laminated glass.
