Device and method for testing adhesive force of impregnating varnish of varnished wire

A testing device and dipping varnish technology, applied in measuring devices, mechanical devices, instruments, etc., can solve the problems of unsteady positioning of helical coils, large error in test results, skewed helical coils, etc., to achieve convenient testing, convenient positioning, The effect of improving reliability

Active Publication Date: 2021-03-30
TONGLING JINGDA REA SPECIAL ENAMELED WIRE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing test equipment cannot stably position the helical coil, and often requires manual auxiliary positioning. During the process of cohesion testing, the helical coil often tends to be skewed and dropped, which makes the error of the test result larger and reduces the Test efficiency

Method used

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  • Device and method for testing adhesive force of impregnating varnish of varnished wire
  • Device and method for testing adhesive force of impregnating varnish of varnished wire
  • Device and method for testing adhesive force of impregnating varnish of varnished wire

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

[0029]In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present inventi...

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Abstract

The invention provides a device and method for testing adhesive force of impregnating varnish of a varnished wire and belong to the technical field of impregnating varnish adhesion force testing. According to the test device, a control base is provided with a display screen electrically connected with a dynamometer; two ends of the control base are respectively provided with stand columns; a fixedbeam is fixed between the top ends of the two stand columns; a sliding beam is slidably connected between the two stand columns; the middle of the fixed beam is connected with a positioning clamp I through the dynamometer; a positioning clamp II is arranged at the upper end of the sliding beam; the positioning clamp I is in positioning connection with the two ends of a spiral coil; the middle ofthe spiral coil is in tensioning connection with the positioning clamp II or the positioning clamp II is in positioning connection with the two ends of the spiral coil; and the middle part of the spiral coil is in compression connection with the positioning clamp I. The testing device is simple in structure, can be flexibly mounted according to requirements, realizes stable positioning of the spiral coil, enables a testing process to be more stable, and improves the reliability of a testing result.

Description

technical field [0001] The invention relates to the technical field of testing the adhesion of dipping varnishes, in particular to a device and a testing method for testing the adhesion of dipping varnishes for enameled wires. Background technique [0002] Impregnation varnish is used to impregnate electrical coils and windings to fill the gaps in them, so that the wires of the coils, and the wires and other insulators are bonded together to improve the electrical strength, mechanical properties, and thermal conductivity of the electrical coil insulation. and protective properties, etc. Therefore, the bonding strength between the dipping paint film and the electric coil is a standard for measuring the quality of use, and the greater the bonding strength, the longer the service life of the electric coil. [0003] At present, the test methods for determining the bonding strength of dipping varnish to enameled wire substrate include twisted coil test method, helical coil test ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 秦兵徐俊杨思伟戚欢
Owner TONGLING JINGDA REA SPECIAL ENAMELED WIRE
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