B05D3/04

METHOD FOR HIGH-SPEED COATING THE INNER SURFACE OF A BLANK
20230053194 · 2023-02-16 ·

In a method for the high-speed coating of the inner surface of a blank (1), preferably a can, the blank (1) rotates about it axis of rotation and a coating is applied to an inner surface of the blank (1). In order to allow for an increase in production rates and for a homogeneous coating of the inner surface of the blank (1), even with low coating thicknesses, without causing an increase in operating costs, a gas flow (10) is blown into the blank (1) via a nozzle (9) to accelerate the blank (1) and to distribute the coating in the direction of the axis of rotation (12).

ULTRAVIOLET CURING APPARATUS AND ULTRAVIOLET CURING METHOD
20230049949 · 2023-02-16 ·

An ultraviolet curing apparatus having: a roller for guiding a film coated with a resin; a first nitrogen gas introduction port and a second nitrogen gas introduction port for introducing nitrogen gas; a UV irradiation portion for irradiating the film with ultraviolet rays from between the first nitrogen gas introduction port and the second nitrogen gas introduction port; an oxygen concentration meter for measuring an oxygen concentration between the film and the UV irradiation portion; an air introduction port for introducing air between the film and the UV irradiation portion; and a controller for controlling at least any one of: an amount of air introduced from the air introduction port, an amount of nitrogen gas introduced from the first nitrogen gas introduction port, and an amount of nitrogen gas introduced from the second nitrogen gas introduction port, so that the oxygen concentration is within a preset oxygen concentration set range.

Co-curable film layer application

The present disclosure is directed to a method for applying a multi-colored coating to a composite structure comprising applying a first co-curable film layer comprising a first color marking to a composite tool, applying a second co-curable film layer comprising a second color marking over the composite tool and at least partially over the first co-curable film layer to create a lay-up of a multi-colored marking, applying a composite structure over the lay-up of the multi-colored marking, and curing the lay-up of the multi-colored marking and the composite structure in a single curing step to create a cured multi-colored coating on the composite structure. A multi-colored coating for marking a composite structure and an aircraft part having a multi-colored marking are also provided.

VACUUM TREATMENT APPARATUS

So as to perform a vacuum surface treatment on a workpiece at a predetermined temperature, which is different from a temperature to which the surface is exposed during the vacuum surface treatment, the workpiece is conveyed in a conveyance direction along one or more than one station group including one or more than one tempering station and of a single treatment station.

GRAPHENE-COATED STEEL SHEET AND METHOD FOR PRODUCING SAME
20230001445 · 2023-01-05 · ·

The present invention pertains to a method for producing a graphene-coated steel sheet, the method comprising the steps of: modifying the surface of the steel sheet so that the surface is negatively charged; forming a positively-charged first graphene oxide layer on the surface-modified steel sheet; forming a negatively-charged second graphene oxide layer on the first graphene oxide layer; and heat-treating the steel sheet on which the first and second graphene oxide layers are formed. The present invention provides a graphene coating method which can be easily applied to large-area coating through a simple process without a special dispersant or binder, and has the effect of allowing the excellent physical properties of graphene to be more efficiently exhibited.

Controlled exposure of in-vivo sensors

A method of protecting an in-vivo sensor includes forming a sensing surface on a surface of the in-vivo sensor, the sensing surface including a functionalized monolayer that will bind to an analyte of interest; and coating the sensing surface of the sensor with a bioabsorbable polymeric coating including a bioabsorbable polymer; wherein the bioabsorbable polymeric coating is configured to protect the in-vivo sensor until needed for implantation.

LIGHT CONTROL FILM AND A METHOD OF MANUFACTURING THE SAME

The present disclosure provides a light control film and a method of manufacturing the same. The method includes providing a microstructured film. The microstructured film includes a plurality of light transmissive regions alternated with channels. The microstructure film is defined by a top surface and a pair of side surfaces of each light transmissive region and a bottom surface of each channel. The method further includes coating the pair of side surfaces of each light transmissive region and the bottom surface of each channel with a coating. The coating includes light absorbing particles that are dispersed in a liquid. The method further includes drying the coating such that the light absorbing particles are selectively deposited on the pair of sides surfaces of each light transmissive region.

PRODUCTION METHOD AND APPARATUS FOR APPLYING FAUX WOOD GRAIN FINISH ON MATERIAL
20230026075 · 2023-01-26 ·

A method and apparatus for applying a faux wood grain finish to plastic architectural plastic boards. The method employs a climate-controlled area for denibbing of boards to prepare a surface and a sprayer to achieve a desired depth of color. A wiper spreads the sprayed on material to form a faux grain finish which may include faux wood knots. The boards are directed through a combination infrared and convection oven having independent curing zones providing specific drying profiles. Once cured, the boards are cooled with forced air cool down fans and transferred into a climate-controlled area for applying a topcoat. The topcoat board is passed through an oven set to a defined temperature for curing and cooled down with forced air cool down fans before packaging and shipping.

Fastener using lubricated interference fit

The invention relates to a method for installing metallic fastener (10; 40) for the interference fit assembly of at least two structural elements (20, 22) comprising a through hole, the fastener comprising an enlarged head (12; 42), a shaft (14; 44) having an external diameter before installation that is greater than an internal diameter of the hole, said shaft comprising a conductive surface (26; 56). Before installation, at least the conductive surface (26; 56) is coated with a lubricating layer (30), which comprises a mixture of at least one polyolefin and one polytetrafluoroethylene, for example, having sufficient adherence to prevent its abrasion by manual manipulation of the fastener and being weak enough to be at least partly stripped from the conductive surface during the interference fit assembly of the fastener. The invention is applicable to the assembly of aircraft structures.

Method for producing a structure on a surface

A method for manufacturing a structure on a surface of a workpiece (1) is disclosed, the method having the following steps: applying a liquid base layer (2) onto the surface of the workpiece (1); spraying on at least one droplet (3) into the not yet congealed base layer (2), wherein the at least one droplet (3) at least partially, preferably completely, penetrates into the base layer (2); fixing the base layer (2); and at least partially removing the at least one droplet (3). Further, a second method having the following steps is disclosed: spraying on at least one droplet (3) onto the surface of the workpiece (1); applying a liquid base layer (2) onto the surface of the workpiece (1), wherein the base layer (2) flows around the at least one droplet (3) and preferably at least partially covers the at least one droplet (3); fixing the base layer (2); at least partially removing the at least one droplet (3). Finally, a device for performing the methods is disclosed.