An insulated wire, containing: a conductor having a rectangular cross-section; and an insulating coated film having at least two insulating layers laminated together on the conductor,
wherein the laminated insulating coated film is composed of: an enamel insulating layer formed from a thermosetting resin on the outer periphery of the conductor, and an extruded insulating layer formed from a thermoplastic resin on the outer side of the enamel insulating layer,
wherein the thickness of the enamel insulating layer is 50 m or more, and wherein the total thickness (T) and the relative permittivity () at 100 C. of the laminated insulating coated film; and the maximum thickness (Tmax), and the maximum value (max) and the minimum value (min) of the relative permittivity at 100 C. of one layer among the laminated insulating layers; satisfy all of the following relations:

T100 m (1.1)

Tmax100 m (1.2)

1.53.5 (2.1)

1.0max/min1.2 (2.2) a coil; and an electrical or electronic equipment.

A sheathed elongated profile, that is, shaped product, is disclosed. The elongated profile may include a main profile body that is at least partially sheathed in a first synthetics component. The elongated profile may also include at least one disposal, that is, protrusion, on the main profile body that is not completely sheathed in the first synthetics component and at least partially sheathed in a second synthetics component. Methods and devices for producing the elongated profile are also disclosed.

A method for producing an elongated product. By an extrusion unit, a material is extruded onto a core of the elongated product as a casing having a predetermined wall strength. Downstream of the extrusion unit and while the material is still moldable, the elongated product is supplied in a conveying direction to a molding unit. A portion of the material is held by the molding unit and, from the held material, a molded part is formed in an integral manner on the casing. The formation of the molded part is thereby carried out in an advantageous manner, via a deformation of material of the casing.

A wire harness includes a conductive path. The conductive path includes a conductor and a sheath that covers the conductor. The sheath includes a first sheath part arranged correspondingly to a route restriction section where route restriction is required and a second sheath part arranged correspondingly to a different section other than the route restriction section. The first sheath part is formed thicker than the second sheath part, and the first sheath part has rigidity.

An apparatus, such as an extruding machine, configured to form a sheath, e.g. insulative layer, over an elongate member, e.g. a wire cable including an extruder to apply the material forming the sheath, a drive mechanism configured to move the elongate member through the extruder at a line speed, a thickness sensor to determine the thickness of the material, and a controller. The controller is programmed to determine a deviation between the actual material thickness a desired thickness, determine a correction factor value based on the deviation between the actual thickness and the desired thickness of the material applied, and adjust the line speed, via the drive mechanism, based on the line speed, an extruder feeder speed, the correction factor value and a material factor value that is based on rheological properties of the material. A method of operating such an extruding machine is also presented.

Thermally conductive electrically insulating PAEK nanocomposite compositions and polymers suitable for improved electric motor windings are provided. PAEK nanocomposite insulated magnet wires are also provided.

An insulated wire and a preparation method therefor, a coil, and an electronic/electrical device are provided. In the preparation method, the thermoplastic polyimide is extruded to mold by adopting the extrusion process, so as to form the insulating layer on the core material, which can significantly improve the production efficiency compared to the traditional multiple-time coating process. The preparation process of the bonding layer and the extrusion process are optimized; the bonding layer is prepared by a specific bonding layer formulation; and then the insulating layer is extruded under a specific negative pressure, so that the prepared thermoplastic polyimide insulating layer has fewer bubbles, and the size of the bubbles is smaller, which ensures the insulating layer to have a higher breakdown voltage.

An insulated wire and a preparation method therefor, a coil, and an electronic/electrical device are provided. In the preparation method, the thermoplastic polyimide is extruded to mold by adopting the extrusion process, so as to form the insulating layer on the core material, which can significantly improve the production efficiency compared to the traditional multiple-time coating process. The preparation process of the bonding layer and the extrusion process are optimized; the bonding layer is prepared by a specific bonding layer formulation; and then the insulating layer is extruded under a specific negative pressure, so that the prepared thermoplastic polyimide insulating layer has fewer bubbles, and the size of the bubbles is smaller, which ensures the insulating layer to have a higher breakdown voltage.

A method and system is presented for placing and burying a conductive material, such as a wire, in lunar regolith. The method may include excavating a trench, placing the conductive material in the trench, and subsequently backfilling the trench to bury the conductive material. The system may include an excavation plow, a reverse plow, and a conductive material dispenser. For example, the excavation plow may remove regolith out of the lunar surface to form a trench. The reverse plow may bury the conductive material with the regolith by refilling a portion of the trench where the conductive material has just been placed. In some embodiments, the conductive material dispenser may be configured to dispense a molten conductive material that is cast in place in the trench to form wire. In other embodiments, the conductive material dispenser may be configured to dispense a prefabricated wire from a spool.

An insulated wire, coil, and electronic or electrical device, and relates to the technical field of electrochemical components. An insulated wire, wherein, the insulated wire comprises the core material and the insulating layer coating the core material; the core material comprises a conductor and a bonding layer coated on the conductor; and the insulating layer is formed by the thermoplastic polyimide; the bonding layer comprises the following components: the polyamide-imide, the polyimide, and the organic solvent.