摘要:
An enamel resin-insulating laminate that has a foamed region including cells and a non-foamed region including no cells on at least one surface of the foamed region, and is shaped into a flat plate form or cylindrical form, wherein the foamed region is configured such that a non-cell layer including no cells has cell layers formed of closed cells on both surface sides of the non-cell layer, a thickness of the non-cell layer is larger than a thickness of a partition wall among the closed cells, and 5 to 60% of a thickness of the foamed region, and at least the cell layer in the foamed region is formed of a thermosetting resin; an inverter surge-resistant insulated wire having a conductor and the enamel resin-insulating laminate; and electric/electronic equipment.
摘要:
An insulated wire, comprising at least one layer as an insulation layer, on an outer periphery of a conductor, wherein at least one layer as the insulation layer is composed of a mixed resin of a crystalline resin (A) and a resin (B) having a glass transition temperature higher, by 30°C or more, than a glass transition temperature of the crystalline resin (A), in which the glass transition temperature is measured by a thermomechanical analysis, and a mixing mass ratio of the mixed resin (a mass of the crystalline resin (A):a mass of the resin (B)) is 90:10 to 51:49; a coil; an electric or electronic equipment; and a method of producing the insulated wire.
摘要:
Disclosed herein is an apparatus for applying a coating material to a wire, the apparatus comprising: a coating chamber for applying a thermosetting coating material to a wire passing through the coating chamber; an elongate injection channel for receiving coating material input to the coating apparatus at a first end of the injection channel and supplying the received coating material to the coating chamber that is arranged at a second end of the injection channel; and, a number of heating elements controllable to progressively raise the temperature of the coating material as the coating material flows through the coating apparatus to achieve a desired viscosity of the coating material within the coating chamber. Advantages include providing an industrial process for applying a coating to a wire that is easier, safer and cheaper than known solvent based techniques.
摘要:
An insulated wire having a conductor, a foamed insulating layer containing a thermosetting resin having cells, coated directly or indirectly onto the outer periphery of the conductor and an outer insulating layer containing a thermoplastic resin having a melting point of 240°C or higher when the thermoplastic resin is a crystalline resin or a thermoplastic resin having a glass transition temperature of 240°C or higher when the thermoplastic resin is a non-crystalline resin; electrical equipment using the insulated wire; and a method of producing the insulated wire, containing a step of forming a foamed insulating layer by applying a varnish for forming the foamed insulating layer on the outer periphery of a conductor, by generating foams during baking and a step of forming an outer insulating layer by extrusion-molding a thermoplastic resin composition for forming the outer insulating layer on the outer periphery of the foamed insulating layer.
摘要:
Verfahren und Vorrichtung zur Verarbeitung eines Drahtes (14), insbesondere eines Aluminiumdrahtes, wobei zumindest eine Schicht eines Beschichtungsmaterials auf den Draht (14) aufgebracht wird und die aufgebrachte Schicht anschließend in einem Einbrennofen (4) getrocknet und/oder ausgehärtet wird, wobei der Draht (14) vor dem Aufbringen der Schicht und zur Rekristallisation des Drahtes (14) durch einen von dem Einbrennofen (4) separaten Glühofen (2) gefördert wird und wobei im Glühofen (2) eine im Wesentlichen in sich geschlossene Strömung eines heißen Gases, insbesondere eine Umluftströmung, erzeugt wird, welche Strömung vorzugsweise der Drahtförderrichtung (9) entgegen gerichtet ist.
摘要:
It is an object of the present invention to provide a method of coating a square wire capable of providing an insulated wire of a square wire that has a high dielectric breakdown voltage. A method of coating a square wire comprising a step of carrying out cationic electrodeposition on a square wire to form an insulating film thereon, by using a cationic electrocoating that stored in an electrocoating bath, wherein the shifting speed of the square wire in the electrocoating bath is set in a range from 1 to 80 m/min; the shortest distance from a liquid-contact portion of the square wire onto the cationic electrocoating to an electrode is set longer than 1/2 of the total shift distance of the square wire from the liquid-contact portion of the square wire to a liquid-separation portion in the electrocoating bath, the cationic electrocoating contains a resin composition of which a hydratable functional group is reduced directly by electrons and passivated, resulting in deposition of a film, and the cationic electrocoating contains crosslinked resin particles.
摘要:
A conductive wire coated with an improved electrical insulation and methods for the preparation of same. The methods involve coating a conductive wire with an insulating material that comprises a curable acrylate-modified aminoamide resin. The insulated conductive wires possess highly desirable properties, including, for example, desirable dielectric strength, heat-resistance, flexibility, mechanical properties and/or uniformity.
摘要:
The invention relates to a device and a process for applying insulating enamel to a wire material. In particular, the applying device (1) comprises a holding body (7) internally defining a main chamber (8) into which the enamel to be applied flows. The holding body (7) carries a plurality of delivery members (9) transferring enamel to respective portions of the wire material (50). A closure member (14) operates within the main chamber (8) and said member is movable between a plurality of operating positions in each of which it is arranged to selectively enable or inhibit a fluid communication between a corresponding number of delivery members (9) and the main chamber (8). More particularly, the delivery members can be activated by successive groups each consisting of two or more delivery members, by angular rotation of the closure member.
摘要:
An improved electrical conductor is provided which includes an electrical conductor having an insulating layer which electrically insulates the electrical conductor. The insulating layer is substantially pinhole free having a thickness of less than about 30µm.