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.

The present application provides a color register edging method for an aluminum alloy hub. The method is characterized by comprising the following steps: (I) a first pretreatment and drying step, including washing, degreasing, acid pickling and passivation; (II) a body powder and paint spraying and respective curing step; (III) a second pretreatment and drying step, including washing, degreasing, acid pickling and passivation; (IV) an edging color register spraying and curing step, wherein a color register paint is squeezed onto a surface that needs color register by using an injection needle; (V) a third pretreatment and drying step, including washing, degreasing, acid pickling and passivation; and (VI) a high-gloss transparent powder spraying and curing step. The method breaks the conventional shielded protective color register process, the designed grooves can be in a full circle or partial, meanwhile, the size of the grooves can also be changed in the width.

The present application provides a color register edging method for an aluminum alloy hub. The method is characterized by comprising the following steps: (I) a first pretreatment and drying step, including washing, degreasing, acid pickling and passivation; (II) a body powder and paint spraying and respective curing step; (III) a second pretreatment and drying step, including washing, degreasing, acid pickling and passivation; (IV) an edging color register spraying and curing step, wherein a color register paint is squeezed onto a surface that needs color register by using an injection needle; (V) a third pretreatment and drying step, including washing, degreasing, acid pickling and passivation; and (VI) a high-gloss transparent powder spraying and curing step. The method breaks the conventional shielded protective color register process, the designed grooves can be in a full circle or partial, meanwhile, the size of the grooves can also be changed in the width.

The present invention relates to a method for producing a multilayer coating on a metallic substrate, comprising, in the given order, (1) producing a polyvinyl chloride plastisol layer on the metallic substrate, comprising the application of a polyvinyl chloride plastisol material to the metallic substrate, (2) producing a thermosetting and/or thermoplastic topcoat layer directly on the polyvinyl chloride plastisol layer, comprising the application of a thermosetting and/or thermoplastic coating material directly to the polyvinyl chloride plastisol layer, wherein both the polyvinyl chloride plastisol material and the thermosetting and/or thermoplastic coating material comprise a layered double hydroxide.

The present invention relates to a method for producing a multilayer coating on a metallic substrate, comprising, in the given order, (1) producing a polyvinyl chloride plastisol layer on the metallic substrate, comprising the application of a polyvinyl chloride plastisol material to the metallic substrate, (2) producing a thermosetting and/or thermoplastic topcoat layer directly on the polyvinyl chloride plastisol layer, comprising the application of a thermosetting and/or thermoplastic coating material directly to the polyvinyl chloride plastisol layer, wherein both the polyvinyl chloride plastisol material and the thermosetting and/or thermoplastic coating material comprise a layered double hydroxide.

The invention relates to a method for subsequently altering a decorative surface that is ready for use, including the following steps: providing a material panel with a decorative layer which is ready for use and has a first coloured. decoration and a protective layer with a structured surface. According to the invention, in order to provide a method for subsequently altering a decorative surface that is ready for use, with which the structures can be optically highlighted, without interfering with the mechanical or structural integrity of the decorative surface, a second coloured decoration is applied to the protective layer and unevenly distributed.

The invention relates to a method for subsequently altering a decorative surface that is ready for use, including the following steps: providing a material panel with a decorative layer which is ready for use and has a first coloured. decoration and a protective layer with a structured surface. According to the invention, in order to provide a method for subsequently altering a decorative surface that is ready for use, with which the structures can be optically highlighted, without interfering with the mechanical or structural integrity of the decorative surface, a second coloured decoration is applied to the protective layer and unevenly distributed.

Provided herein is a method for producing a multicoat paint system on a metallic substrate by producing a basecoat or a plurality of directly successive basecoats directly on a metallic substrate coated with a cured electrocoat system, producing a clearcoat directly on the one or the topmost of the plurality of basecoats, and subsequently jointly curing the one or the plurality of basecoats and the clearcoat, wherein at least one basecoat material used for producing the basecoats includes at least one aqueous dispersion which includes a polymer whose preparation includes successive radical emulsion polymerization of three mixtures of olefinically unsaturated monomers.

Provided herein is a method for producing a multicoat paint system on a metallic substrate by producing a basecoat or a plurality of directly successive basecoats directly on a metallic substrate coated with a cured electrocoat system, producing a clearcoat directly on the one or the topmost of the plurality of basecoats, and subsequently jointly curing the one or the plurality of basecoats and the clearcoat, wherein at least one basecoat material used for producing the basecoats includes at least one aqueous dispersion which includes a polymer whose preparation includes successive radical emulsion polymerization of three mixtures of olefinically unsaturated monomers.

A thermoplastic prepreg includes a web or mesh of fibers in which the web or mesh of fibers includes chopped fibers. The thermoplastic prepreg also includes a thermoplastic material that fully impregnates the web or mesh of fibers so that the thermoplastic prepreg has a void content of less than 5%. The thermoplastic material is polymers that are formed by in-situ polymerization of monomers or oligomers in which greater than 90% of the monomers or oligomers react to form the thermoplastic material. The thermoplastic prepreg includes between 5 and 95 weight percent of the thermoplastic material and the chopped fibers that form the web or mesh of fibers are un-bonded.