Device for shrinking products

 

(57) Abstract:

Usage: a heating device, shrinkage of the products, welding cables, heat treatment of products in hard to reach places. The inventive device includes a housing 1 with a longitudinal slot 6. On its inner surface located lamp 2 bulbs, oriented in the center of the case. On the inner surface of the case is made concentric groove. In the groove area are the cartridges 3. Lamp 2 is located in cartridges 3 so that the base of each lamp is completely located inside the cartridge. The walls of the grooves and the cartridges 3 are mirrored and made from a material with good reflective properties. 1 C.p. f-crystals, 1 Il.

The invention relates to a heating device and can be used for shrinking products, sealing the joints of cables and in other processes for heat treatment of products.

A device for heat treatment of products [1], which contains a hollow chamber with evenly spaced around the perimeter inside its walls the radiation sources. The surface of the camera housing is made with a longitudinal slot to form a processed surface.

However, e the measures and cannot be used for heat treatment long enough thin products.

The objective of development is to create a tool for local heating products, in particular, is very extensive, such as cables, as applied to the transactions sealing using a heat-shrinkable elements of the type HERE (heat pipes).

The invention consists in the execution of a device for heat treatment of products in the form of a miniature infrared heater, in which a special way interconnected housing-reflector and emitter.

As emitters used halogen incandescent lamp type KGM. Lamps of this type represent the flask with a diameter of about 10 mm and about 15 mm, inside which there is a body glow (spiral). The contact spiral vpaivaetsja in the lamp base through the molybdenum foil spacers and end pin conclusions. These elements are extremely sensitive to overheating and do not allow continuous operation at temperatures above 300aboutWith, otherwise the bulb burn out as if from the outside.

Housing is a reflector, which is made hollow to form thermoablative surface has a slot, the radiation sources are located inside the reflector. The relative positions of the reflector and lamp TM, resource lamps will be reduced. Therefore, in the device for shrinking products used a special form of the cartridge which securely screens are sensitive to overheating of the lamp base. To the cartridge absorbed perhaps less radiant flux, it has a mirror surface and is made of material with good reflective properties, for example, aluminum. The reflecting surface of the reflector is also made mirror. Housing is a reflector, which may be made annular, rectangular, triangular, depending on the shape of workpiece attached to the handle, which is a toggle power.

The device has small dimensions, so you can work inside the units or in other cramped conditions. In the process, it is possible manipulation of irradiation. The device enables visual control of the entire zone of irradiation due to the small width of the body of the reflector and by a certain arrangement of radiation sources.

The drawing shows the device for shrinking products with the annular housing-reflector.

The device includes a housing reflector with heat sink 1, N sources emission is s from radiation and by contact with the body eliminates overheating of the cap. The arm 4 with the switch 5 is attached to the housing which has a slot 6 to enable coaxial installation of the device on the product.

The device operates as follows.

It is installed on the heat-shrinkable product, and then turns on the switch 5 at the handle 4. Radiation from sources of radiation reflected from the inner surface of the shell is divided by the circular area on the surface and warms it. The shrinkage process is monitored visually through the gap between the casing and the product, and after reaching effects of shrinkage device is moved along a product to proceed along the length of the product. In the process, there is an intensive heating of the cartridge, which is attached to the radiation source.

However, thanks to the heat transfer from the cartridge 3 to the body of the reflector 1 and the subsequent dissipation of the absorbed body-reflector energy in space, and also due to the fact that the cartridge protects the base of the lamp from direct exposure, overheating of the cap and premature failure of the lamps does not occur.

1. DEVICE FOR SHRINKING PRODUCTS containing made in the form of a hollow cylinder with a longitudinal slot housing the management and oriented in the center of the housing, characterized in that on the inner surface of the case is made concentric groove, incandescent lamp mounted in the cartridges located in the specified area of the groove, the base of each lamp is completely specified cartridge and the walls of the grooves and ammo lamps made of mirror and is made of a material with good reflective properties.

2. The device under item 1, characterized in that the casing is made with a handle, which is a toggle.

 

Same patents:

The invention relates to electrical engineering, namely to receive insulating coatings on metal, fiberglass, asbestos, Lodomeria, etc

FIELD: electrical engineering; insulating materials.

SUBSTANCE: proposed method for manufacturing insulating materials used in insulators and surge limiters, as well as in manufacturing pipelines, bushes, shells, bearings, wiring insulation of cases includes some additional operations; pre-drying, impregnation, and final drying of prepreg are effected in vacuum chamber and arbor is preheated before prepreg rolling up. Electric strength of prepreg produced by this method is 3.7 to 4.5 kV/mm which is much higher than that of known tubular prepregs.

EFFECT: enhanced quality of fabric surface pre-treatment, improved conditions of impregnation process.

1 cl

FIELD: the invention describes the method for manufacture of a high-voltage insulator with an elongated central solid or hollow body, plastic casing and one or several plastic sheds.

SUBSTANCE: the method consists of several stager: the casing from plastic is obtained by means of casting or extrusion for the solid or hollow body; the sheds are formed from plastic; the plastic of the casing and/or the plastic of the sheds is partially stitched, and whenever necessary, the incompletely stitched plastic of the casing or shed are stitched completely, the shed is fastened on the specified place on the casing, and the obtained blank of the high-voltage insulator is stitched completely. The silicon rubber contains at least two stitching catalysts reacting at various temperatures, or at least two inhibitors suppressing the reacting of connection at various temperatures.

EFFECT: facilitated procedure.

28 cl, 3 dwg

FIELD: manufacture of column-shaped high-voltage bushing insulators.

SUBSTANCE: proposed bushing insulator has symmetrical hollow cylindrical external insulator 1 with lead-through head 2 supported by one of its butt-ends and designed for connection to high-voltage supply. Resting on opposite end of insulator is lead-through base 3 designed for connection to ground potential. Proposed method involves sequential fitting of lead-through base 3, external insulator 1, and lead-through head 2 on drawing frame 5; lead-through base 3 rests in this case on insulating case 6. Lead-through base 3 and lead-through head 2 are tightly fitted to one another through drawing frame 5 that mounts insulating case 6. Clamping member 21 made for shifting in axial direction is installed on flange 22 of lead-through head 2 prior to fitting the latter on drawing frame 5; head flange 22 and clamping member 21 are pressed against one another to produce pre-tensioning force. During next fitting of pre-tensioned lead-through head 2 clamping member 21 is secured on end of drawing frame 5 passed through insulator 1, and then clamping member 21 is taken off head flange 22 to form negative allowance.

EFFECT: enhanced economic efficiency in manufacturing high-voltage bushing insulator.

7 cl, 2 dwg

FIELD: chemical industry; methods and devices for manufacture of the electric plastic insulators.

SUBSTANCE: the invention is pertaining to the field of manufacture of the electric plastic insulators. The device for manufacture of electric plastic insulator contains the mould for manufacture of the insulating screens, which may be installed concentrically around the vertically located core or the hollow core. The mould has the field arranged below in the axial direction and fitting to the core around it or to the hollow core and the arranged above in an axial direction area, which is extending in radial direction with respect to the field arranged below in the axial direction and may be made according to the form of the being produced insulating screen. Between the end of the arranged below area in the axial direction and the upper end of the mould there is at least one injecting channel for injection of the liquid synthetic material under pressure. The method of manufacture of the electric plastic insulator is realized in several steps: a) the mold is installed in the preset axial position; b) form the a sealing coupling between the core and the mould; c)inject the liquid synthetic material under the heightened pressure with respect to the pressure of the environment; d) harden the synthetic material in the mould; e) remove the sealing joint; f) transfer the mould downwards on the preset spacing interval; h)repeat the steps b) - f) up to production of the required number of the insulating screens. The invention ensures the shorten duration of the material molding and curing, that reduces the production time of the insulators.

EFFECT: the invention ensures the shorten duration of the material molding and curing, that reduces the production time of the insulators.

12 cl, 3 dwg

FIELD: electrical engineering.

SUBSTANCE: proposed method for producing spiral skirt 2 for high-voltage insulator 1 allows for manufacture of actually cylindrical backing 3, extruder 10 incorporating extrusion head 11 that governs extrusion direction A, makes use of extruder 10 for extruding insulator skirt 2 and application of the latter onto backing 3 while rotating this backing relative to extrusion head 11. Novelty is that extrusion direction A actually coincides with longitudinal axis of backing 3; the latter is fed through extrusion head 11. Skirt manufactured by this method can be used for high-voltage insulators, high-voltage lightning arresters, or high-voltage cable entries.

EFFECT: ability of producing high-voltage parts having relatively small diameter.

12 cl, 3 dwg

FIELD: electrical engineering; polymeric insulators and their manufacturing process.

SUBSTANCE: proposed composite insulator manufacturing process includes skeleton fixation in winding mechanism that rotates it about longitudinal axis at the same time moving skeleton along its axis, production of profiled band from T-section silicone rubber band by means of extruder, installation of fin in a spaced relation between turns followed by its rolling-on. Skeleton rotating and moving mechanism is inclined relative to extruder through angle equal to that of fin inclination. Fin is thickened at least on one end of base and this end is flattened in the course of rolling to fill up clearance between adjacent turns. Then part obtained is polymerized and wiring hardware is mounted thereon.

EFFECT: facilitated manufacture, improved termination of silicone finning edge.

1 cl, 2 dwg

FIELD: electrical engineering; electrical insulators.

SUBSTANCE: protective shell is manufactured from two parts: a tube (a hose) slid over a rod or a pipe made of electrically insulating material and glued to said rod/pipe, and fins that can be glued over said tube (hose) at any intervals allowing for obtaining any leakage path length.

EFFECT: improvement of reliability and cost-effectiveness of polymer insulators.

3 dwg

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, particularly to the method of making high-voltage lead terminals. Channels are made in the electrically conducting element of a lead terminal, providing for access of the impregnating compound to inner layers of electric insulating material, and on the end sections, flanges are attached, which boarder the area where electric insulating material is put. After winding electric insulating material, the lead terminal is thermally processed and put into an elastic sealed sheath, on which nipple passages to its inner cavity are put, uniformly distributed along the sheath. The lead terminal is then put into an impregnating chamber, thereby joining channels in the electrically conducting element and the nipple passages with the vacuum-pressure impregnating system. Further impregnation and insulation are done at high pressure of neutral liquid in the impregnating chamber and the compound inside channels in the electrically conducting element. The neutral liquid is heated and the lead terminal is baked.

EFFECT: increased reliability and service life of lead terminals.

10 cl, 2 dwg

FIELD: electric engineering.

SUBSTANCE: invention is related to bushing insulator for supply of electric current and/or voltage. Bushing insulator (1) for supply of electric current and/or voltage via grounded plate (2), comprising axisymmetric insulating bushing (3), which surrounds central electric conductor (4). Bushing insulator has sealing part (5) for gas/liquid sealing between conductor and insulating bushing, which represents insulating paper impregnated with resin. Insulator is equipped with compressing sealing element (6), which serves as gas/liquid sealing between conductor and insulating bushing and combined with insulating bushing. Method for manufacturing of bushing insulator comprises impregnation of insulating bushing with hardening material and giving monolith shape in process of hardening with shrinkage. Sealing part is placed on part of conductor axial conductor length between insulating bushing and conductor prior to winding of insulating material.

EFFECT: invention gives possibility to avoid concentration of mechanical stresses at external edge of insulating bushing.

29 cl, 6 dwg

FIELD: electric engineering.

SUBSTANCE: device for reinforcement of suspended insulators comprises carcass with mechanism of insulators feed to working positions of rotary table installed on carcass, pressing devices with shoes coaxial to stems of working positions, interacting with vibrating sector, fixed frame with guide block installed on carcass, and also comprises horizontal platform hingedly fixed on frame with working guide block rigidly fixed on it, on horizontal platform, which is spring-loaded versus frame, there is a vibrator arranged, shoe of pressing device is equipped with pressing rubber piece having ledges that contact with insulator ribs.

EFFECT: increased applied forces of vibration and improved mechanical strength of finished insulators, reliable connection of insulator elements, sufficient seal of cement-sand adhesion and removal of air from it.

2 cl, 3 dwg

Up!