440 results about "Electrical tape" patented technology

In one embodiment the present invention improves the heat flow from an electrically insulated object 13 by providing an enhanced conduit at the interface between the layers of insulating tape 16. The tape 16 has been surface coated with a high thermal conductivity (HTC) material, so that the interface between the layers of tape 23 provides a pathway for the heat to reach the environment 24. The radiation of heat through the tape layers is also increased by the surface coatings.

In one embodiment of the present invention as used for impregnating a composite tape (56) with HTC particles provides for permeating a fabric layer (51) of the composite tape with HTC particles and impregnating an impregnating resin into the composite tape through the fabric layer (51). At least 5% of the HTC particles permeated into the fabric layer are carried out of the fabric layer and into a mica layer (52) bound to the fabric layer by the impregnating resin. In some embodiments the impregnating resin itself contains HTC particles.

The invention discloses a reinforced type silicon rubber self-adhesion insulated rubber tape. Cotton fiber cloth is taken as a base material and adhesive layers are respectively coated on upper and lower faces. Each adhesive layer comprises the following materials in parts by weight: 30-60 parts of silicon rubber, 10-25 parts of gas-phase white carbon black, 0-5 parts of silicone oil softening agent, 5-20 parts of silicon-boron tackifier, 0.2-0.5 part of coloring agent and 0.5-5 parts of vulcanizing agent. According to the reinforced type silicon rubber self-adhesion insulated rubber tape, the breaking strength is more than or equal to 5 MPa and the definite elongation strength is more than or equal to 3 MPa; when the reinforced type silicon rubber self-adhesion insulated rubber tape is used for an insulating, sealing and winding process of various cable connectors under 35 kV or below, the safety operation capability, the anti-cracking capability, the anti-fouling capability and the wear-resisting capability of cables are improved, the winding is more tight and the sealing waterproof effect is better; and the use is safe and reliable at a temperature rangoffing from -40 DEG C to 260 DEG C, and the anti-current-leakage capability is further improved.

The invention belongs to the technical field of battery structures, and discloses a square winding type battery pole piece. One edges of positive and negative current collectors are provided with convex electrode lugs; the roots of the convex electrode lugs are provided with insulation rubber coatings; two side edges of the positive current collector are provided with positive electrode small white spaces; two side edges of the negative current collectors are provided with negative electrode small white spaces; the positive electrode small white spaces and the negative electrode small white spaces are oppositely adhered with insulation tapes; a big white space is arranged between a positive electrode coating region and the positive electrode small white space at one side edge; the big white space provides larger coating amount of positive active substances, increases capacity of the battery, and reduces cost of the battery. The insulation rubber coatings are tightly combined with the coating material on the convex electrode lugs, thereby increasing the strength of the electrode lugs and playing a role of preventing shore-circuit situation during a pole-lug folding process. By cutting in the position where the insulation tapes are oppositely adhered during a winding process, powder off caused by cutting the material and burr short circuit caused by a cutter can be prevented effectively.

The invention discloses a method for making a self-adhesive insulating tape. The method comprises the following steps of: selecting a glass fiber cloth base material; performing silicon rubber vulcanization and coating on the glass fiber cloth base material, and baking in an oven while coating; sticking a transparent film to the formed insulating tape; and rolling, cutting, and thus obtaining a self-adhesive insulating tape finished product. The self-adhesive insulating tape is formed by coating an insulating self-adhesive material on two sides of the glass fiber cloth base material and then compounding the two sides, so the method is simple and low in energy consumption; and the self-adhesive insulating tape has excellent properties of high temperature resistance, ageing resistance, tensile strength, viscosity and the like.

The invention discloses a system and a method for testing the mechanical-electrical coupling effect of an electrical conducting functional material . The system comprises an electrical conducting functional material sample, a sample electrode, an insulation tape, an external wire on the electrode, a sample clamping device, a displacement sensor, a transmission shaft, a driving motor, a force sensor, a handheld four-point probe, a digital source meter B, a digital source meter A and a DC power supply, wherein an integral load-displacement curve can be obtained through accurate control of parameters such as voltage strength, conduction time and loading speed; mechanical and electrical properties such as elasticity modulus, tensile strength, elongation at break, yield strength, integral volume resistivity and micro-area volume resistivity distribution of a material under the action of different force fields and electric fields can be obtained through further calculation. Therefore, measurement and analysis of the mechanical-electrical coupling effect of the electrical conducting functional material can be realized accurately and reliably, and the system and the method are suitable for electrical conducting functional materials such as conductive macromolecule, piezoceramics, a polymer-matrix composite, a ceramics-matrix composite, and a metal-matrix composite.

The invention discloses a silicone rubber insulating tape and a coating-method production process thereof. The insulating tape is manufactured by combining glass fiber cloth belts with two sides coated with insulating viscous materials. The insulating viscous materials comprise the following components in part by weight: 65 to 75 parts of silicone rubber 110-2, 8 to 14 parts of silicone rubber 107, 1 to 2 parts of alkaline acid, 10 to 18 parts of white carbon black A200, 1 to 4 parts of hydroxy silicone oil GY2009-3, 1 to 4 parts of ferric oxide, 1 to 4 parts of vulcanizing agent, and the balance of xylene serving as a solvent. The insulating tape has advantages in the aspects of high-temperature resistance and ageing resistance, and instead of the conventional calendaring process, the process for coating silicone rubber paste on the glass fiber belts is adopted to simplify production process, reduce energy consumption and consequently reduce production cost.

Electrical wiring devices for audio/video systems, such as, for example, audio speaker cables (FIG. 1), audio/video component interconnect cables (FIG. 2) and power cables (FIG. 3) and the like, and more particularly the structure thereof using, preferably, a series of four, inner, parallel, longitudinally extended or straightly-laid, individually insulated, core wires (11/111/211) surrounded by at least one set [two 220 & 230 for a power cord (200)] of four, spiral wound, outer, individually insulated wires (21/121/221), typically with an initial covering of electrical tape type or paper tape material covered by aesthetic silk or cotton cloth or other material(s), in which the inner, core wires are signal carrying wires and the spiral wound wires are the ground/neutral wires, each type combined at their ends (12A/112A/221A) at terminating end elements, such as twisted ends, RCA-connectors or A/C power plug ends (14/114/214, respectively).

The invention belongs to electric wire and cable protection and electric insulating adhesive tapes, and particularly relates to liquid insulating glue for a cable joint. The liquid insulating glue contains modified rubber and non-polar solvent and also can contain oil-soluble resin and/or copper corrosion inhibitor, wherein the consumption of the modified rubber is 10 to 40 percent of the total mass; and a formed insulating protective layer has excellent insulating performance and properties of resisting moisture, water, oxidation and acid and alkali corrosion. The liquid insulating glue can be used for joint coating and insulation of a metal lead, and also can be used for repair of cable outer sheaths and waterproof seal of embedded electric wires and cables.

An insulating wrap for adding to containers to prevent heat adsorbsion or heat loss is composed of conductive insulation material as well as radian barrier material. The insulating wrap conforms to the container shape and has multiple attachment elements for closing and retaining the insulating wrap to the container. The insulating wrap may also have attachment elements for adding a top and/or a bottom insulating cover also comprising conductive insulation material as well as radian barrier material. The insulating wrap may employ insulating tape on the top and bottom edges to protect the edges as well as to further improve heat transfer at the interface between the top or bottom covers and the insulating wrap. In one embodiment the top cover may have an integrated handle piece where the top and bottom cover attachments have sufficient strength to allow a container to be lifted. This embodiment facilitates lifting of a insulated container.

The invention relates to an aerial insulation wire electrification overhauling method, in particular to an aerial insulation wire electrification repairing method. The method comprises the steps that polyimide adhesive tape is wrapped on the exposed part of an aerial insulation wire through a half fold packaging method, the outer side of the exposed part wrapped by the polyimide adhesive tape is coated with a layer of teflon coating film, an injection hole is formed in the middle of the teflon coating film, and a spray gun sprays a polyurethane foam joint mixture to the position between the teflon coating film and the polyimide adhesive tape through the injection hole for joint filling. According to the aerial insulation wire electrification repairing method, the problems that the insulation performance of the aerial wire is lowered, and a grounded short circuit accident is caused due to the facts that the aerial wire is exposed and the insulation adhesive tape is aged, unglued and chapped are effectively prevented, large-area power failure is avoided, power supply reliability is provided for reducing interphase short circuits and ground faults, and hidden dangers existing when workers work are avoided.

The invention discloses a preparation method of a novel insulated rubber tape. The preparation method comprises the following steps of: a) preparing a base band layer; b) thermally treating the base band layer; c) coating an adhering layer; and d) post-treating the tape. The invention discloses the preparation method of the novel insulated rubber tape. The preparation method is reasonable in step arrangement and simple and convenient in preparation process. The base band layer in the tape has unique fiber constitution and structure, so that the prepared tape has more excellent strength, elasticity and insulating performance. Meanwhile, the tape is moderate in thickness, and the sealing and insulating demands can be satisfied by winding the tape by two layers generally, therefore, the practical value of the tape can be effectively enhanced.

The invention discloses a multi-layer insulating wire which is formed by a conductor and at least two insulating layers which coats the conductor; it uses heat plasticity with fluorine to form the insulating layers; any two adjacent layers are formed by the heat plasticity with different fluorine so as to form inter-strip insulating layers.

The invention provides a method for forming an insulating layer on an overhead power transmission line. The method includes painting solventless coatings on the power transmission line to form a first coating, winding an electric insulating rubber tape on the first coating to form a rubber tape layer after the first coating is half-dry or dry, and painting the solventless coatings on the rubber tape layer to form a second coating. Gaps among guide lines of the overhead power transmission line are filled, and the rubber tape and the coatings are provided to form the insulating layer, so that good insulating and waterproof effects are realized.

The invention provides an insulating protection tube which comprises a first sleeve (3), wherein the first sleeve (3) is provided with a first axial through hole and comprises two first half sleeves (30) which are detachably connected with each other; each first half sleeve (30) is provided with two first edges extending along the axial line of the first axial through hole; cable fixing pieces are arranged on both the first half sleeves (30). According to the insulating protection tube, insulation of a metal wire at the cracked position on an insulating wire can be recovered conveniently and quickly, and the metal wire at the cracked position can be exposed if necessary; furthermore, foreign matters cannot be retained on the metal wire at the cracked position on the insulating wire, so that the problems that an insulating rubber tape needs to be frequently wound and eliminated and the time and the labor are wasted in the prior art are effectively solved.

The invention discloses a terminal electric tape automatic winding apparatus, and belongs to the field of engineering daily tools. A handheld base frame is connected with a sliding rail, a controlleris installed on the handheld base frame, and a friction wheel is installed on a motor. A rotating ring is arranged in the sliding rail, and an insulating tape roll is fixed on an anti-slip ball. A fixed screw rod is installed on the two sides of a damping wheel, an anti-skid ball is arranged at one end of the fixed screw rod, a damping shaft is installed below one end of a third support, and an electromagnet is installed above a second support. The friction wheel is driven to rotate through rotation of the motor, so that the friction wheel drives the rotating ring to rotate, and the process ofmanual winding of workers is replaced. Damping rotation is carried out through the damping wheel and the damping shaft, so that the insulation adhesive tape wound on the wire core is ensured to havethe same elastic deformation degree, and the winding stress of the adhesive tape is uniform. The work of workers is replaced, and the winding quality and efficiency of the adhesive tape are improved.

Provided is an insulating tape to be used in a nonaqueous secondary battery, the insulating tape being capable of maintaining its insulating property even under a severe environment, e.g., even when being heated, and being capable of improving the safety of the nonaqueous secondary battery. Specifically, provided is an insulating tape for a nonaqueous battery, including a base material, and a pressure-sensitive adhesive layer arranged on one side, or each of both sides, of the base material, in which the base material and/or the pressure-sensitive adhesive layer each contain/contains an insulating inorganic filler. Also provided is an insulating tape for a nonaqueous battery, including a base material with an insulating layer, and a pressure-sensitive adhesive layer arranged on one side, or each of both sides, of the base material with the insulating layer, in which the insulating layer contains an insulating inorganic filler.

Described are a test apparatus and a test method for the wetted perimeter of coal seam water injection. In the test apparatus, a columnar insulator is provided between an upper electrode and a lower electrode, circular insulating tapes are located at the outer edges of the upper electrode and the lower electrode, a circular reverse osmosis membrane is provided at the middle of the circular insulating tape, the upper electrode, lower electrode, circular insulating tapes and circular reverse osmosis membrane form an enclosed chamber which is filled with solid sodium chloride, and cotton yarns are packed among the upper resin backing plate, lower resin backing plate, circular insulating tapes and the inner walls of water permeable perforated pipes. The upper electrode is provided with an electrode lead which passes through the columnar insulator, the lower electrode and the lower resin backing plate and goes out from the tail connecting end.