108 degree special fine self-adhesion litz wire and production method thereof
A technology of self-adhesive Ritz wire and production method, which is applied in the direction of cable/conductor manufacturing, plastic/resin/wax insulator, organic insulator, etc., which can solve low production efficiency, unsatisfactory wear resistance and lubricity, and low temperature resistance and other issues to achieve consistent results
Active Publication Date: 2011-09-14
山东赛特电工股份有限公司
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AI Technical Summary
Problems solved by technology
At present, ordinary stranded wire is made of 130-grade polyurethane multi-strand electromagnetic wire, which has low temperature resistance, poor wear resistance and friction coefficient, and is not suitable for the current technical requirements of high temperature resistance and high-speed winding, and often occurs in high temperature environments. Insulation aging, more pinholes in the winding process, lower voltage, lower production efficiency
Now there are 155-grade polyurethane electromagnetic wires on the market, and the temperature resistance level has been improved, but they cannot be used in many high-temperature-resistant occasions. In addition, the wear resistance and lubricity cannot meet the current high-speed winding production methods, which often appear in production. The phenomenon of voltage drop and more pinholes after friction and thinning in the winding process; in the continuous upgrading of electronic appliances and household appliances, new requirements are put forward for the product structure of electromagnetic wire
Method used
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Experimental program
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Effect test
Embodiment Construction
[0015] The following describes the implementation of the present invention in combination with specific processes.
[0016] The first step: first select high-quality oxygen-free electrolytic copper rod or bare copper wire, and continuously draw the wire online to form a 0.030-0.200mm ultra-fine copper wire conductor;
[0017] The second step: then continuous annealing through the annealing tube, the annealing temperature is 450-550℃;
[0018] The third step: first coat the conductor with a modified polyurethane insulating paint with a temperature resistance of class 180, 14-18 times, and then coat the surface with a polyamide self-adhesive paint with a temperature resistance of class 180 for 6-8 times , (In order to ensure the consistency of inductance and resistance after winding into a coil, the conductor deviation must be controlled within ±0.001mm, and the outer diameter deviation must be controlled within ±0.002mm), this self-adhesive paint is compatible with solvent bonding and...
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Abstract
The invention discloses a 108 degree special fine self-adhesion Litz wire and a production method thereof. A superfine copper wire with the diameter of 0.030-0.200 mm is used as a conductor, the surface layer of the copper wire is sequentially coated by 180 degree temperature resistance modified polyurethane insulated paint and 180 degree temperature resistance daiamid self-adhesion paint, and the 108 degree superfine self-adhesion polyurethane lacquered wire with 200 DEG C thermal shock temperature, 300 DEG C softening and breakdown temperature, more than 1000 V breakdown voltage and more than 0.3N adhesion stress, is formed by baking and bunch stranding. The invention solves the problems of easy wire breakage and fine drawing during the bunch stranding of the superfine lacquered wire, and the 108 degree self-adhesion polyurethane Litz wire has the advantages of low temperature adhesion, fast formation, high-temperature deformation resistance, favorable consistency of DC resistance and inductance, and the like.
Description
Technical field [0001] The invention relates to a twisted electromagnetic wire. Background technique [0002] With the rapid development of household appliances and electronic communication industries, a large number of high-quality special twisted magnet wires are required. At present, ordinary stranded wire is made of 130 grade polyurethane multi-strand magnet wire, which has low temperature resistance, abrasion resistance and poor friction coefficient. It is not suitable for the current high temperature resistance and high-speed winding technical requirements, which often produce high temperature environments There are many pinholes in the insulation aging and winding process, the voltage is reduced, and the production efficiency is low. Now there is a 155 grade polyurethane magnet wire on the market, and the temperature resistance level has been improved, but it cannot be used in many high temperature resistance occasions. In addition, the wear resistance and lubricity canno...
Claims
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IPC IPC(8): H01B7/29H01B7/02H01B13/00H01B13/16H01B13/30H01B13/02H01B3/30
Inventor 李希存薛宗刚
Owner 山东赛特电工股份有限公司