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US 10,857,566 B2Granted
Efficient infrared absorption system for edge sealing medium density fiberboard (MDF) and other engineered wood laminates using powder and liquid coatings
AssigneeHeraeus Noblelight GmbH
InventorMichael J Chapman
Life of this patent
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Abstract
A method for coating and curing a material on a product having a plurality of edges and faces. More specifically, disclosed is an efficient method for coating and curing engineered wood products (EWP) in general, and the edges of EWP in particular.
Claims16
A method for electrostatic deposition and curing of a material on a product having a plurality of edges and faces, the method comprising:
- providing a continuous conveyor track for sequentially delivering the product to a preheat oven, a primer booth, a gel oven, a top coat booth, and a cure oven;
- preheating the product in the preheat oven with at least one preheat catalytic heater, wherein the preheat oven is adaptable to heat the product to approximately 200 degrees Fahrenheit, to create a preheated product;
- priming the preheated product in the primer booth adaptable to coat the plurality of edges and faces of the preheated product conveyed from the preheat oven with the material, to create a primed preheated product;
- heating the primed preheated product in the gel oven with a catalytic heater, wherein the gel oven is adaptable to heat the rimed preheated product conveyed from the primer booth to approximately 300 degrees Fahrenheit, to create a gelled product;
- top coating the gelled product in the top coat booth adaptable to top coat the plurality of faces and edges of the gelled product conveyed from the gel oven with a top coat, to create a top coated product having top coated faces and edges;
- and
- curing the edges of the top coated product before curing the faces of the top coated product in the cure oven adaptable to heat the top coated product conveyed from the top coat booth to approximately 300 degrees Fahrenheit.
4 more elements
A method for curing a material on a product having a plurality of edges and faces;
- providing a cure oven having at least one infrared edge sealing oven having at least one infrared emitter including at least one quartz lass component;
- providing at least one infrared catalytic heater oven;
- and
- connecting the at least one infrared edge sealing oven and the at least one infrared catalytic heater oven with a continuous conveyor track;
- and
- curing the material in the cure oven so that the edges cure before the faces of the product.
3 more elements
Dependencies are inferred from the claim text.