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Method for measuring thickness of non-conductive material coating film

A non-conductive and coating technology, applied in the field of measuring the coating film thickness of non-conductive materials, and measuring the coating film thickness, can solve the problems of low accuracy and lack of operability in mass production

Inactive Publication Date: 2016-01-27
JIANGSU XINSIDA ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Among the above methods, the first method can be applied to various body materials such as metal or non-metal, but its accuracy is low; the second method can only be applied to metal body materials
Regardless of the above-mentioned methods, if 100% full inspection is required, it is not feasible for mass production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] This method uses glass non-conductive material for trial production

[0019] Coating method: metal coating with Al powder

[0020] The coating film thickness required by the customer is: 0.5um~2.0um

[0021] Its testing and control methods are:

[0022] 1. Make multi-stage coating products from 0.5um to 2.0um according to the requirements;

[0023] 2. Determination of film thickness by means of tomographic cutting electron microscope;

[0024] 3. Review of the measurement method for high-frequency phase reflection offset testing:

[0025] (1) Prepare equipment that can emit high frequency waves, such as Agilent, Anritsu and other equipment;

[0026] (2) Prepare an antenna transmitting head capable of transmitting high frequency;

[0027] (3) Prepare raw material products without painting

[0028] (4) After connecting the antenna transmitting head with the high-frequency generating equipment, fix it;

[0029] (5) Place the unpainted material product at the antenna...

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Abstract

The invention discloses a method for measuring the thickness of a non-conductive material coating film. The method uses a high frequency generating device connected with a high-frequency antenna transmitting head to identify a multi-stage coating film product and an uncoated material product within a target thickness range, determines the minimum point of a waveform and a limit value of film thickness, picks any non-valley point of a blank waveform, connects the non-valley point with a valley point plus the limit value of film thickness to form a straight line, uses the straight line as a determination alarm line, and places the coated product beside the antenna transmitting head to carry out testing. The method is especially suitable for determining the film thickness of a metalized coating of a non-metal material surface without damaging the coating film. For products with especially-strict requirements, the method can carry out 100% film thickness detection, and the precision of film thickness detection can reach 0.1 [mu]m.

Description

technical field [0001] The invention belongs to the technical field of painting and vacuum coating, and relates to a method for measuring the thickness of a coating film, in particular to a method for measuring the thickness of a non-conductive material coating film. Background technique [0002] With the rapid development of science and technology, the application of coatings and thin films has become more and more extensive, and the industry has put forward high requirements for the measurement and quality control of film thickness. [0003] As an ordinary coating enterprise, the general methods for measuring the thickness of the coating film are as follows: [0004] 1. Micrometer, the measurement accuracy is 0.001mm, and the accuracy is 0.01mm; [0005] 2. The test equipment using the principle of magnetic induction has a measurement accuracy of 0.01um and an accuracy of 0.1um; [0006] 3. Other methods. [0007] Among the above methods, the first method can be applied...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/06
Inventor 王寒骁沈峰
Owner JIANGSU XINSIDA ELECTRONICS CO LTD