Processing method of enamelled copper flat wire for photovoltaic inverter

Abstract

The invention relates to a processing method of an enameled copper flat wire for a photovoltaic power generation inverter, which comprises the following steps of: using a copper extruder to set plastic deformation at a temperature of 460 DEG C to 490 DEG C and under a pressure of 1000 Mpa to 1300 Mpa, and extruding a 7.13 *8. 00mm bare copper conductor through a die hole; cooling with the mixtureof distilled water and alcohol, winding the copper conductor onto a take-up coil; uncoiling the bare copper conductor through an enamelling process, annealing at a high temperature of 450 DEG C to 500DEG C, cooling and polishing by a polishing tool, and controlling the thickness of a first coating to be between 0.04 mm and 0.06 mm at a vehicle speed of 2.5 m / min to 4 m / min; performing micro polishing on surface of the conductor is treated in the traveling course of the conductor with a polishing brush installed on a four-dimensional rotating wheel; performing mold coating when entering the paint, after 6 to 10 processes of painting, baking, cooling, cooling the conductor by circulating air intensity cooling, baking at 250 DEG C to 480 DEG C to form a finished product; finally, carrying out various performance tests. The invention has the advantages of reasonable design, simple operation and very obvious application effect.

Description

technical field [0001] The invention relates to a processing method of an enamelled copper flat wire, in particular to a processing method of an enameled copper flat wire for a photovoltaic power generation inverter. Background technique [0002] At present, the national standard GB / T 7095-2008 (international standard IEC60317-29) of the traditional 200-grade enamelled copper flat wire has a conductor thickness production range of 0.80-5.60mm, and the bending performance is 180°bending according to 4a 4b (5b) rod diameter There can be no cracking of the paint film; according to the national standard GB / T 7095-2008 (international standard IEC60317-29), the 200-grade enamelled copper flat wire with a thickness of 7.13×8.00mm is produced, and it is easy to use when the manufacturer winds special-shaped coils. There is a problem of cracking of the paint film; it is understood that the minimum bending diameter of the wire when the manufacturer winds it is Ф20mm, and a certain ben...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the above disadvantages, to solve the problem that the wires produced in accordance with the national standard GB / T 7095-2008 (international standard IEC60317-29) in terms of bending performance and adhesion performance cannot meet the requirements of the manufacturer: to provide a design Reasonable, simple operation, safe and reliable processing method for enamelled copper flat wire for photovoltaic power inverters