Continuous testing of the thickness of the enamel coating of ele

Details Continuous testing of the thickness of the enamel coating of ele Continuous testing of the thickness of the enamel coating of ele

1978-03-06

1980-04-15

Little, Willis

Geometrical instruments

Area integrators

Electrical

33147L, 33149J, G01B 706

Patent

active

041976517

ABSTRACT:
A process for continuously testing the thickness of the enamel coating of electric wires, in which the wire, after enamelling, passes between a fixed and a movable measuring roller. The wire is wrapped around the fixed measuring roller such that its wrap-around angle has a value between 0 and 15 degrees and the fixed and movable measuring rollers are positioned relative to each other such that their respective planes of symmetry are vertically displaced by a value between 0.5 and 2 mm. Using the process according to the invention, the thickness of enamel applied to the wire can be kept constant to about 0.5 .mu.m.

REFERENCES:
patent: 1815710 (1931-07-01), Guillemin
patent: 3190261 (1965-06-01), Ziffer
patent: 3880000 (1975-04-01), Burns

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