CN102353347A - Multi-electric wire insulating layer or sheath concentricity measuring method - Google Patents

Abstract

The invention relates to a multi-electric wire insulating layer or sheath concentricity measuring method, which is characterized by comprising the following steps of: 1) cutting 10mm sample from a finished electric wire, wherein the cross section of the sample is vertical to the axis of a conductor, and then vertically embedding the sample into the silicon rubber; 2) rubbing down the embedded sample on a grinding machine, and then polishing the sample on a polishing machine; 3) placing the polished sample under a reading microscope, and directly reading the maximum thickness and the minimum thickness of the insulating layer or the sheath; 4) and utilizing the formula to obtain the concentricity. The method is simple and feasible, the insulating layer or the sheath does not need to be peeled off, and the concentricity can be measured.

Description

The measuring method of many wires cable insulation or sheath concentricity

Technical field

The present invention relates to the measuring method of a kind of many wires cable insulation or sheath concentricity, be used for directly measuring the concentricity of many wires cable insulation or the concentricity of sheath.

Background technology

Use diversified electric wire on the aircraft, reach quality requirements, need measure the concentricity of electric wire to product according to the production needs.Concentricity of the original measurement method of the insulating layer obtained sample or sample and the other conductor sheath and the isolation layer separated, and the tool along a plane perpendicular to the axis of the conductor cut sheet and measured on a microscope at high magnification insulation or jacket Maximum thickness?

and Minimum thickness

, and using formulas obtained concentricity

, the method steps cumbersome devastating for wire and cable, while cutting vertical deviation may be due to data errors brought, does not apply to the use of manufacturers into the plant to use testing.

Summary of the invention

The technical matters that the present invention will solve provides the measuring method of a kind of many wires cable insulation or sheath concentricity, and this method is simple, insulation course or sheath need not be peeled off, and can measure its concentricity.

For overcoming the above problems, concrete technical scheme of the present invention is following: the measuring method of a kind of many wires cable insulation or sheath concentricity is characterized in that may further comprise the steps:

1) sample of intercepting 10mm on the finished product electric wire, its section and conductor axis are perpendicular, then samples vertical are mounted in the silicon rubber;

2) will inlay good sample and on sander, polish, to buffing machine, polish again;

3) after the polishing to the reading of the sample into the microscope, the insulating layer or sheath directly read the maximum thickness

and the minimum thickness

;

4) calculated using the formula concentricity

.

The measuring method of this many wires cable insulation or sheath concentricity, simple to operate, data are accurate, avoid cutting perpendicularity deviation and bring data error, can carry out batch testing, improved work efficiency greatly.For many wires cable, can measure insulation course and sheath simultaneously, convenient and reliable.

Description of drawings

Fig. 1 is the slice map of the electric wire of TGPC0812-12 at microscopically for model.

Fig. 2 is the slice map of the electric wire of TGPC1111-16 at microscopically for model.

Fig. 3 is the slice map of the electric wire of TGPC1121-20 at microscopically for model.

Fig. 4 is the slice map of the electric wire of TGPC1132-22 at microscopically for model.

Embodiment

The measuring method of a kind of many wires cable insulation or sheath concentricity is characterized in that may further comprise the steps:

1) sample of intercepting 10mm on the finished product electric wire, its section and conductor axis are perpendicular, then samples vertical are mounted in the silicon rubber;

2) will inlay good sample and on sander, polish, to buffing machine, polish again;

3) sample after will polishing is put under the reading microscope, directly reads the maximum ga(u)ge

and the minimum thickness

of insulating barrier or sheath;

4) calculated using the formula concentricity

.

Through the contrast of two kinds of test methods, can find out that method of testing of the present invention is feasible.

Claims (1)

1. the measuring method of wire cable insulation more than a kind or sheath concentricity is characterized in that may further comprise the steps:

1) sample of intercepting 10mm on the finished product electric wire, its section and conductor axis are perpendicular, then samples vertical are mounted in the silicon rubber;

2) will inlay good sample and on sander, polish, to buffing machine, polish again;

3) The polished samples were placed under a microscope to read, read directly insulation or sheath maximum thickness? and the minimum thickness

;

4) calculated using the formula concentricity .

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