Automatic control method and system for overlap rate of polyimide sintered wire for high-speed rail

Abstract

The invention provides an automatic control method and system for the overlap rate of a polyimide sintered wire for a high-speed rail. The method comprises the steps of carrying out the shooting analysis of the surface of a copper flat wire, and accurately carrying out the grinding, polishing and cleaning of an area, with a projection structure, of the surface of the copper flat wire, so as to prevent the projection structure from puncturing an overlapped polyimide film, shooting and analyzing an overlap image and a cladding film forming image on the surface of the copper flat wire in the overlap and sintering processes respectively, so as to determine the area, which is not overlapped by the polyimide film, of the surface of the copper flat wire and the thickness uniformity of the polyimide cladding film. Therefore, the polyimide film is re-overlapped on the surface of the copper flat wire and the sintering temperature is adjusted, so that the overlap rate of the polyimide film on the surface of the copper flat wire and the thickness uniformity of the cladding film can be improved, and the problems that the polyimide is not completely overlapped on the surface of the copper flat wire and the polyimide film is easy to crack after the cladding film is formed are effectively avoided. And the insulating property of the polyimide sintered wire can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of sintering line processing, in particular to an automatic control method and system for wrapping ratio of polyimide sintering lines for high-speed rail. Background technique [0002] A driving motor is arranged inside the high-speed rail, and the driving motors all include electromagnetic wires. Electromagnetic wire is also called sintering wire, which is sintered after laminating polyimide film on the surface of copper flat wire, so that a uniform polyimide film is formed on the surface of copper flat wire, so that the polyimide The imide film can function as an insulating layer. When current passes through the electromagnetic wire, it will drive the motor to run. The drive motor dedicated to high-speed rail usually requires a large drive current, which has high requirements for the insulation performance of the sintered wire. At present, the polyimide film is first wound and wrapped on the surface of ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects existing in the prior art, the present invention provides an automatic control method and system for the wrapping ratio of polyimide sintered wires for high-speed railways, which accurately detects the convexity on the surface of copper flat wires after photographing and analyzing the surface of copper flat wires. Grinding, polishing and cleaning the area where the structure is raised, so as to prevent the raised structure from piercing the wrapped polyimide film; and during the lapping and sintering processes, the lapping image and the Cladding film image, so as to determine the area of ​​the copper flat wire surface not covered by the polyimide film and the thickness uniformity of the polyimide cladding film, so as to re-wrap the polyimide film on the surface of the copper flat wire Imide film and adjust the sintering temperature, which can improve the lapping rate of the polyimide film on the surface of the copper flat wire and the uniformity of the thickness of the cladding film, thereby effectively avoiding incomplete lapping of the polyimide on the surface of the copper flat wire and The problem of easy cracking of the polyimide film after cladding and film formation, and the ability to greatly improve the insulation of the polyimide sintered wire

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