A fan blade and a fabricating method thereof are provided. The fan blade includes a rough coating layer on a surface thereof. The rough coating layer includes a plurality of recessed regions. A maximum depth of recess of the recessed regions is between 50 μm to 130 μm.

Disclosed is a multilayer hydrophilic coating, comprising: a base layer comprising oxide particles, wherein a shape of an oxide particle is a hollow, generally spherical shell; a topcoat layer deposited on the base layer, wherein the topcoat layer comprises a sol-gel; and a doping agent, wherein the doping agent is located within the topcoat layer, deposited on the topcoat layer, located between the base layer and the topcoat layer, or combinations thereof.

A method for producing an abrasion-resistant wood-based panel with a top side and a bottom side. At least one decorative layer, in particular as a printed decoration, is provided on the top side. The method includes applying at least one first resin layer to the at least one decorative layer on the top side of the wood-based panel, uniformly scattering abrasion-resistant particles onto the first resin layer on the top side of the wood-based panel. The first resin layer on the top side of the wood-based panel provided with the abrasion-resistant particles is not dried after application. The method also includes applying at least one second resin layer to the first, moist resin layer provided with the abrasion-resistant particles on the top side of the wood-based panel, and then drying the assembly of first resin layer and second resin layer on the top side of the wood-based panel in at least one drying apparatus.

A method for producing an abrasion-resistant wood-based panel with a top side and a bottom side. At least one decorative layer, in particular as a printed decoration, is provided on the top side. The method includes applying at least one first resin layer to the at least one decorative layer on the top side of the wood-based panel, uniformly scattering abrasion-resistant particles onto the first resin layer on the top side of the wood-based panel. The first resin layer on the top side of the wood-based panel provided with the abrasion-resistant particles is not dried after application. The method also includes applying at least one second resin layer to the first, moist resin layer provided with the abrasion-resistant particles on the top side of the wood-based panel, and then drying the assembly of first resin layer and second resin layer on the top side of the wood-based panel in at least one drying apparatus.

Described herein are an aqueous pigment paste including at least one color pigment (a) and at least one polymer (b) which is preparable by successive radical emulsion polymerization of three monomer mixtures (A), (B) and (C) of olefinically unsaturated monomers in water, an aqueous basecoat material which is preparable by admixing the pigment paste to at least one aqueous binder-containing component suitable for preparing the basecoat material, a method for producing a multicoat paint system using this basecoat material, and use of the polymer (b) for dispersing color pigments within an aqueous pigment paste.

The present invention provides a multilayer coating film-forming method that is capable of forming a multilayer coating film with excellent finished appearance and excellent luster. The aqueous base paint (X) is applied by using a rotary-atomization bell-shaped coater under coating conditions of a shaping air pressure of 0.15 to 0.25 MPa and a paint discharge amount of 100 to 300 cm3/min. The viscosity 60 seconds after the application of the aqueous base paint (X), measured at a temperature of 23° C. and a shear rate of 0.1 sec-1, is 90 to 160 Pa.Math.s, the solids content 60 seconds after the application is 20 to 40 mass %, and the film thickness 60 seconds after the application is 17 to 35 μm. The effect pigment dispersion (Y) contains a flake-aluminum pigment (A) with an average thickness of 1 nm or more and less than 70 nm, a flake-aluminum pigment (B) with an average thickness of 70 nm to 250 nm, a hydroxy-containing acrylic resin (C), a rheology control agent (D), a surface-adjusting agent (E), and water, the effect pigment dispersion (Y) having a solids content of 2 to 9 mass %. The effect coating film after curing has a film thickness of 0.5 to 2.0 μm.

The present invention provides a multilayer coating film-forming method that is capable of forming a multilayer coating film with excellent finished appearance and excellent luster. The aqueous base paint (X) is applied by using a rotary-atomization bell-shaped coater under coating conditions of a shaping air pressure of 0.15 to 0.25 MPa and a paint discharge amount of 100 to 300 cm3/min. The viscosity 60 seconds after the application of the aqueous base paint (X), measured at a temperature of 23° C. and a shear rate of 0.1 sec-1, is 90 to 160 Pa.Math.s, the solids content 60 seconds after the application is 20 to 40 mass %, and the film thickness 60 seconds after the application is 17 to 35 μm. The effect pigment dispersion (Y) contains a flake-aluminum pigment (A) with an average thickness of 1 nm or more and less than 70 nm, a flake-aluminum pigment (B) with an average thickness of 70 nm to 250 nm, a hydroxy-containing acrylic resin (C), a rheology control agent (D), a surface-adjusting agent (E), and water, the effect pigment dispersion (Y) having a solids content of 2 to 9 mass %. The effect coating film after curing has a film thickness of 0.5 to 2.0 μm.

A system is provided for manufacturing a stator assembly having a stator core including a plurality of slots along a circumference of the stator core and a plurality of hairpins inserted into the slots, where the system may include, an epoxy coating stage disposed forward along a travel direction of the stator assembly, and configured to coat the epoxy on end portions of leg portions of the hairpins, and a varnish impregnation stage disposed at a rear of the epoxy coating stage along the travel direction of the stator assembly, and configured to impregnate varnish into external surfaces of the plurality of hairpins and also into an interior of the slot by flowing on the plurality of hairpins.

A system is provided for manufacturing a stator assembly having a stator core including a plurality of slots along a circumference of the stator core and a plurality of hairpins inserted into the slots, where the system may include, an epoxy coating stage disposed forward along a travel direction of the stator assembly, and configured to coat the epoxy on end portions of leg portions of the hairpins, and a varnish impregnation stage disposed at a rear of the epoxy coating stage along the travel direction of the stator assembly, and configured to impregnate varnish into external surfaces of the plurality of hairpins and also into an interior of the slot by flowing on the plurality of hairpins.

To provide a process for producing a coated article, capable of producing a coated article having a coating film excellent in weather resistance, using a powder coating material. A process for producing a coated article having a substrate, comprising: applying a curable powder coating material containing a curable polymer containing no fluorine atom, a curing agent and a pigment to a surface of a substrate, to form a first coating layer composed of the curable powder coating material, then applying a powder coating material containing a fluorinated polymer and containing no pigment to a surface of the first coating layer, to form a second coating layer composed of the powder coating material, and heating the first coating layer and the second coating layer simultaneously to form a coating film on the surface of the substrate.