The invention provides a paint immersing process for insulating paper, comprising the following steps: step 1, adding insulating paint in a container to blend paint; step 2, drying a base band of the insulating paper; step 3, entirely immersing the processed base band of the insulating paper into the insulating paint; or spraying the insulating paint onto the base band to cover the surface thereof; and step 4, taking out the base band to dry at controlled temperature till solidifying the insulating paint and the base band of the insulating paper. The paint immersing process is simple and practical to operate. The base band can directly cover a conductor as an insulator. As the insulating paint has a certain adhesive property, the structure of conductor with the insulating paper becomes more stable. After the conductor is wound into a coil, free of another immersing process, simplifying production.

Provided are a coating device and a coating method which suppress the occurrence of exhaustion of a coating liquid. A coating device which applies a coating liquid to an upper surface or a lateral surface of a long substrate continuously traveling in a specific traveling direction has: a bar which is capable of being brought into contact with the upper surface or the lateral surface of the long substrate continuously traveling in the specific traveling direction via the coating liquid, and is rotated; and at least two stages of dam plates which are provided on the upstream side in the traveling direction of the long substrate with respect to the bar, and allow the coating liquid to flow to the long substrate via a space between the dam plate and the bar. The at least two stages of dam plates are arranged along the traveling direction.

Provided are a heat insulation sheet and a method for manufacturing the same. The heat insulation sheet includes: a nonwoven fabric having a plurality of pores; and first and second coating films which are coated on both sides of the nonwoven fabric and made of a polymer material, wherein the plurality of pores are implemented as air pockets for thermal capture by the first and second coating films.

The present disclosure provides systems and methods for in-line thermal flattening and enameling of steel sheets. The systems and methods include an in-line thermal flattening of a feed stock steel sheet and a subsequent enamel coating of the steel sheet. The resulting enamel coated steel sheet has improved flatness compared with other coated steel sheets that are enamel coated but do not undergo the in-line thermal flattening. The systems and methods allow the use of less expensive source materials without sacrificing quality in the finished enameled product.

A manufacturing method of composite copper foil includes the following steps: providing a copper foil, wherein the copper foil has a first surface and a second surface opposite to each other; performing a surface treatment with a surface treatment solution to form a first surface treatment layer on the first surface of the copper foil; and forming a first lithium metal layer on the first surface treatment layer. Another manufacturing method of composite copper foil includes the following steps: providing a copper foil, wherein the copper foil has a first surface and a second surface opposite to each other; preparing a conductive material; adding a filling material, an adhesive material and a solvent to the conductive material to form a slurry; coating the slurry on the first surface of the copper foil to form a first conductive layer.

A process for producing a coated electrical steel strip includes application of a pretreatment layer over a first flat side of a rolled electrical steel strip. The layer thickness of the pretreatment layer is in the range from 10 nm to 100 nm, in particular from 20 nm to 50 nm. The rolled electrical steel strip which has been coated with the pretreatment layer is then coated with an insulating lacquer layer over the pretreatment layer. The insulating lacquer layer is applied by roll application using a roll and no deliberate drying and/or crosslinking of the pretreatment layer is carried out after application of the pretreatment layer and before coating with the insulating lacquer layer.

A method of coating film in a roll. A film is wound into a roll with gaps between the layers of the film in the roll. A fluid is forced through the roll such that the fluid deposits a coating on at least one side of the film.

A flow-coating apparatus is configured to flow-coat a member to be flow-coated with an insulation layer, where the member to be flow-coated includes a first surface and an outer peripheral surface surrounding a periphery of the first surface, the first surface being perpendicular to a vertical direction. The flow-coating apparatus includes a first flow-coating mechanism and a second flow-coating mechanism, where a flow-coating opening of the first flow-coating mechanism faces the first surface and is configured to flow-coat the first surface with the insulation layer; and a flow-coating opening of the second flow-coating mechanism faces the outer peripheral surface and is configured to flow-coat the outer peripheral surface with the insulation layer.

A process of coating an open-cell foam substrate includes the steps of arranging two rollers separated by a gap; positioning the substrate above the gap; providing a coating material onto the substrate, feeding the substrate through the gap so as to achieve a layer of the coating material on the substrate, wherein the coating material is selected from the group consisting of a polysiloxane derivative, acrylic polymer, butyl rubber, natural rubber, nitriles, styrene block copolymers with ethylene, styrene block copolymers with propylene, styrene block copolymers with isoprene and polyvinyl ether and modifying the coating with tackifiers; plasticizers; crosslinking agents; chain transfer agents; chain extenders; adhesion promoters; aryl or alky copolymers; fluorinated copolymers; hexamethyldisilazane; and silica.

Dual sided coating system and method for coating substrates, such as substrates useful as battery electrodes. In certain embodiments, the system includes an inline calender station positioned between the dryer and the rewind of the substrate; i.e., positioned downstream, in the direction of substrate (or web) travel, of the dryer, and upstream of the rewind. In certain embodiments, the calender operation is positioned immediately downstream of the dryer; no intermediate equipment that processes the substrata, such as a vacuum dryer, is positioned between the dryer and the calender. Advantages of such a system and method include twice the throughput compared to single side coating operations, a smaller equipment footprint compared to tandem coating lines, lower capital cost and operating cost compared to tandem coating lines, and fewer issues with wrinkles in the substrate.