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Enameled little knowledge introduction

in Help Wanted Wed Sep 09, 2015 10:14 pm
by zihua new • 1.508 Posts | 15080 Points

Appearance, scale identification and characterization of enameled wire
A Appearance inspection:
The appearance of smooth, uniform color, no paint tumors and white lubricant.
Two-scale inspection:
1 wire diameter: specification reference GB / T6109, inspection methods: Micrometer
2 conductor diameter: specification reference GB / T6109, inspection methods: Micrometer
3 wire diameter: specification reference GB / T6109, inspection methods: Micrometer
4 conductor error value: specification reference GB / T6109.
Three mechanical properties:
Elongation: specification reference GB / T6109, inspection methods: elongated instruments,
Four calculation methods; (length after stretching - stretching the length of the front) than the length / tension before;
1 rod wound: will not thevarnish insulating for insulating copper magnet wire same standard copper wire and the corresponding ten laps around, check the film without cracking, copper rod diameter reference GB / T6109 demand;
2 Thermal shock: the winding wire placed in the oven (suspended in the center of the oven azimuth) 0.5 hours bake, oven temperature and enameled wire corresponding specification demand, with reference to GB / T6109, the next inspection bake finished film without cracking.
Five Breakdown voltage:
Take half a wire 0.5m, half of the site will be cut and scrape four lines patent leather, then half prices for electrical copper winding wirestwice, and after a half twist wire into cannabis situation (two each thread ends) were the same test with a high pressure instrument Two high-pressure end of the thread, (high pressure specification: Specification with reference to Annex 2 countries).

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