The present invention provides an electrically heated nozzle for injection molding which is insulated to prevent conduction of electricity and loss of thermal transmission to the casing, wherein at least a part of the electrical insulation comprises a layer of dielectric insulator material with an electrical resistance wire wound spirally thereabout and another dielectric insulator layer thereover. Also disclosed is a method for making such a nozzle which includes the steps of applying a first insulator layer, winding electrical resistance wire about the first insulator layer, applying a second insulator layer, and applying a casing layer thereover. The first and second insulating layers may be provided by spraying or through telescoping, self-supporting sleeves.

Compact cartridge hot runner nozzle

The invention provides a method for performing electroless nickel plating on the surface of aluminum nitride ceramic, belonging to the ceramic thin-film metallization field The method comprises the following specific steps: 1) polishing the surface of aluminum nitride with a machinery; coarsening the aluminum nitride substrate with mixed acid or alkali, completely cleaning away the residual acid or alkali; 3) sensitizing the coarsened substrate in stannous chloride solution, activating in palladium chloride solution or performing activation without palladium; 4) weighting a certain amount of nickel sulphate, sodium hypophosphite, sodium citrate, sodium acetate, lactic acid, thiourea and sodium dodecyl sulfate in sequence to prepare a chemical plating solution; and 5) adjusting the pH value of the solution to 40-60 with acid or alkali, heating the solution to 70-95 DEG C, and placing the prepared substrate in the solution to perform electroless nickel plating The invention is characterized in that the electroless nickel plating can be performed on the surface of the aluminum nitride ceramic substrate which is difficult to plate; and a certain amount of surfactant is added so that the plating becomes denser and smoother, the binding force between the plating and the substrate is increased, and the solderability of the plating is better

Method for performing electroless nickel plating on surface of aluminum nitride ceramic

An injection molding heated nozzle having a nozzle body defining an melt bore having an entry end and an exit end; a first heater carried by the nozzle body for heating the nozzle body along a length of the melt bore; and a second heater removably mounted to the nozzle body for heating the nozzle body, at least a portion of the second heater overlapping a portion of the first heater.

Injection molding nozzle with embedded and removable heaters

The present invention provides an electrically heated nozzle (22) for injection molding which is insulated to prevent conduction of electricity and loss of thermal transmission to the casing, wherein at least a part of the electrical insulation comprises a layer of dielectric insulator material (84) with an electrical resistance wire (80) wound spirally thereabout and another dielectric insulator layer (86) thereover. Also disclosed is a method for making such a nozzle (22) which includes the steps of applying a first insulator layer (84), winding electrical resistance wire (80) about the first insulator layer (84), applying a second insulator layer (86), and applying a casing layer (88) thereover. The first and second insulating layers (84, 86) may be provided by spraying or through telescoping, self-supporting sleeves.

Compact cartridge hot runner nozzle and method of making

PROBLEM TO BE SOLVED: To provide a light emitting device with highly reliable thin structure and small size. SOLUTION: The light emitting device is equipped with a light emitting element 1, conductive layers 2a and 2b which are mounted with the light emitting element 1 or electrically connected to the light emitting element 1, and a light transmitting insulating member which seals up the light emitting element 1 and is provided with the conductive layers 2a and 2b at its base. The conductive layers 2a and 2b are equipped with projections 2c and 2d at a part of their sides. Especially, the projections 2c and 2d are located on the plane sides of the conductive layers 2a and 2b, the corners of the projections 2c and 2d on the plane sides are rounded, the conductive layers 2a and 2b have a recess where the light emitting element 1 is housed, and a color conversion member capable of changing the wavelength of light emitted from the light emitting element 1 is provided in the recess. COPYRIGHT: (C)2007,JPO&INPIT

Light emitting device and method of manufacturing same

An electrically insulating supporting structure for a high voltage electric apparatus having a high voltage charging part and a ground potential part, the structure being adapted to be disposed between the high voltage charging part apparatus and the ground potential part. The structure includes an organic insulating structure formed in a predetermined shape, and an inorganic insulating layer formed on a surface of the organic insulating structure and an intermediate layer consisting essentially of an organic and an inorganic powder.

Insulating supporting structure for high-voltage apparatus including inorganic insulating layer formed on a surface of an organic insulating structure

PURPOSE:To produce mechanism parts capable of securely operating over a long period by successively laminating an electroless nickel plating substrate and a ceramic layer at least on either contact face of mechanism parts mechanically connected and mutually contacted rotatably and slidingly. CONSTITUTION:A substrate 21 is formed on parts 20 such as a roller and a pawl by electroless Ni-B plating treatment, and its hardness is increased by heat treatment. Next, a ceramic film 22 of TiC or the like is formed on the substrate 21 by a physical deposition method or the like. Thus, the mechanism parts sufficiently withstanding even if being used for a part subjected to high bearing pressure over a long period can be obtd.

Kitamura Tadao

Papers

Insulating supporting structure for high-voltage apparatus including inorganic insulating layer formed on a surface of an organic insulating structure

Mechanism parts and formation of film thereon

Disconnecting contactor of breaker

Contactor with current transformer of drawer type breaker

Outdoor vacuum breaker