Powder Coating Manufacturing

The powder supply and coating powder feedlines should be interlocked with the air extraction system,so that ,in the event of failure of the ventilatioon system,the coating powder and powder supplies are cut off.Airflow monitor switches are the preferred method of detecting failure of the ventilation system.Such equipment will also be sensitive to blocked filters and broken or loose fan blades. A fire detecting device,interlocked to shut off powder and coating powder supplies and ventilation may be installed in the boothRead More …

The stoving oven should be situated at least 1m from the powder spraying installation and arranged so that powder cannot accumulate or be spilled near to the oven,its air intakes,hot surfaces or any electrical apparatus.Air movement within the oven should not be so high as to blow off powder from the work piece before fusion . The clean air change requirement of the oven should be known and visibly marked on the oven. For conveyor ovens and especially those usingRead More …

An explosion can be prevented if both or either of the conditions Explosive Limit and Source of ignition are avoided. Powder coating system should be designed to prevent both conditions occurring ,but due to the difficulty of totally eliminating sources of ignition,more reliance should be placed on the prevention of explosive concentrations of powder. This can be achieved by ensuring that the powder in air concentration is kept below 50% of the Lower Explosive Limit(LEL). Determined LELs on the range ofRead More …

Powder coatings are of the fine organic materials, they can give rise to dust explosions. A dust explosion may break out when the following conditions happen at the same time. A ignition sources is  present, including: (a) hot surfaces or flames;(b) electrical discharges or sparks;(c) electrostatic discharges. The concentration of dust in the air is between the Lower Explosive Limit (LEL) and Upper Explosion Limit (UEL). when a layer of deposited powder coating or a cloud comes into contact with anRead More …

Weigh-up and Mixing ( raw material,such as resins,hardener,pigments,filler,etc) Extrusion Process Milling and Sieving