Powder Curing Oven
Powder coating of metals is often favored by manufacturers because its finish is tougher than conventional paint. Powder coating is abrasion resistant and will not crack, chip or peel like conventional paint will. Powder coating is typically done through a two-step process: First the coating is applied to the part electrostatically with a powder coating equipment and then the newly powdered part is cured in an industrial oven under heat to form a skin. This process is very efficient since the powder wraps around the back of the part for better coverage and ensures 95% material usage of the powder. The powder coating is a dust-like substance that behaves quasi-fluid. with the help of this material property, the powder coating flows through the hoses and gun of powder coating equipment and reaches the part already ionized with - ion. This helps the particle hang on the part and stay there till the part is grounded again. The parts that are coated with powder are either manually, or automatically with the help of a conveyor are taken into the powder coating oven, of which inside there is a 200 C temperature to melt the powder coating on the parts
Benefits of powder coating and curing in an oven: Heavy duty construction and quality components Excellent uniformity and heating rates for consistent, high quality curing results No powder blow-off – reduces rework Uniform heat distribution provides quality cured finishes and optimum cure cycles Quick heat-up rates so you can cure more loads per day Roof-mounted blowers conserve valuable floor space at your facility Fully adjusted and factory tested prior to shipment to reduce installation and start-up times Available with our exclusive energy efficient oven upgrade
Industrial Powder Coating Batch Oven Options: Available with our exclusive energy efficient oven upgrade Doors on both ends Notched doors for overhead trolley rail(s) Guaranteed temperature uniformity & certification Windows, lights, access ports, etc. Composite curing oven options (vacuum ports, TC jacks, pumps, etc) PLC controls Data acquisition and recording
Different types of ovens can be used to cure powder: Box Type Ovens: Box type (Batch type) ovens are used for various applications and at various temperatures and work well with products that can vary in size, weight and shape. Products can be loaded or hung from carts that can be pushed in and out of the oven. Products can also be hung from ceiling mounted conveyor rails with attachments and hooks allowing the user to easily move product in and out of the oven. With conveyor rails that extend outside the oven products can be staged while a batch of products are in the oven curing. An option to the batch process is a variable frequency drive for the recirculation blower, this provides low flow air during a period of time that allows the powder to set (begin to flow) once the powder has set the blower can be sped up to allow the product to cure, this keeps powder from being blown off the product. Continuous Oven: Continuous type ovens typically use overhead monorail type conveyor systems and allow a user to have a closed loop system (load area, powder paint booth, cure oven and an unload area) Product is painted on a continuous basis as the conveyor moves product throughout the system. Oven length is based on throughput at a given speed with product located at certain centerlines. A low-flow duct design in the first few feet of the oven allow the powder to set before a hi-flow duct design cures the powder. In either box or continuous systems the heat source can be numerous types with the most common being either electric or gas.