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Method for rapidly judging flexibility and attachment of enameled wire

An enameled wire and flexibility technology, applied in the field of enameled wire flexibility and adhesion testing, can solve the problems of lag production, multiple waste products, and inapplicability to guide production, and achieve the effect of reducing unqualified products and stable product quality.

Inactive Publication Date: 2012-08-08
BAIYIN NONFERROUS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, it often happens that specifications are adjusted during production and products of various specifications are produced on the same side. If the inspection is not carried out in time, the adjustment will have already occurred when the quality inspection department uses instruments to detect that the enameled wire's flexibility and adhesion are not up to standard. more waste
Therefore, the use of instruments to detect the flexibility and adhesion of enameled wires is a behavior that lags behind production. This method is not suitable for guiding production and is a kind of post-event detection behavior.

Method used

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  • Method for rapidly judging flexibility and attachment of enameled wire
  • Method for rapidly judging flexibility and attachment of enameled wire
  • Method for rapidly judging flexibility and attachment of enameled wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1, take the enameled wire with a specification of 2.5 mm on the production line, cut out a section of enameled wire segment with a length of 25 cm, hold one end of the wire segment with both hands, and exchange the ends of the wire segment held by both hands, as figure 1 Shown: pull the end of the wire segment with both hands ( figure 1 The arrow in the line is the direction of tension), until the middle of the line segment forms a circle and is stretched to such as figure 2 As shown, that is, the circle formed in the middle shrinks to the limit, and observe whether the paint film is cracked at the tensioned part of the circle formed in the middle of the line segment. If there is no crack, the flexibility and adhesion of the enameled wire are excellent and qualified; if there is crack, Then the flexibility and adhesion of the enameled wire are inferior and unqualified.

Embodiment 2

[0013] Embodiment 2, take the enameled wire with a specification of 1.5 mm on the production line, and intercept a section of enameled wire with a length of 30 cm, and the rest are the same as in embodiment 1.

Embodiment 3

[0014] Embodiment 3, take the enameled wire with a specification of 0.5 mm on the production line, and intercept a section of enameled wire with a length of 20 cm, and the rest are the same as in embodiment 1.

[0015] This method has been used in our company's production for many years. It has been verified by many years of practice that as long as the lacquer film pulled out by hand does not crack, the above four tests measured by professional instruments can all pass. Therefore, this method is easy to operate, It saves time and labor, and has good economic benefits.

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Abstract

The invention discloses a method for rapidly judging the flexibility and attachment of an enameled wire. The method comprises the following steps of: cutting an enameled wire section of 20-30 centimeters in length from an enameled wire of 0.5-2.5 millimeters in specification; holding one end of the wire section with two hands; exchanging the tips of the wire sections held by two hands; pulling the tips of the wire sections forcibly with two hands till a circle is formed on the middle part of the wire section and is tightened; reducing to the maximum extent; observing whether a paint film at a circle tightening position on the middle part of the wire section is cracked; if not, judging that the flexibility and attachment of the enameled wire are excellent; and if so, judging that the flexibility and attachment of the enameled wire are poor. According to the method provided by the invention, the flexibility and attachment of the detected enameled wire are consistent with the test results of a special instrument for the enameled wire. The method is simple, convenient and practicable, and is easy to grasp; operation can be completed within dozens of seconds; and an on-duty enameling worker can test randomly during continuous production of enameled wires, so that stable product quality is ensured, and defective goods are reduced.

Description

technical field [0001] The invention relates to a method for detecting the flexibility and adhesion of enameled wires, in particular to a method suitable for quickly judging the flexibility and adhesion of enameled wires at a production site. Background technique [0002] Usually to judge whether the flexibility and adhesion of the enameled wire is qualified, it is necessary to have a special instrument specialist in the quality inspection department to judge whether the above performance can be judged after completing the four tests of round rod coiling test, tensile test, sudden pull test and peeling test. qualified. Doing these tests is highly specialized, and requires a dedicated person to do it, which takes a long time and requires going to the laboratory instead of randomly doing it at the production site. [0003] Enameled wire is a product that needs to be produced continuously, and once produced, it cannot be stopped easily. In addition, it often happens that spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/28G01N19/04
Inventor 徐咸韦应春
Owner BAIYIN NONFERROUS GROUP