Method of coating elongated filaments

Details Method of coating elongated filaments Method of coating elongated filaments

1992-11-25

1993-11-09

Lusignan, Michael

Coating processes

Direct application of electrical, magnetic, wave, or...

Pretreatment of substrate or post-treatment of coated substrate

427120, 4273741, 4273742, 4273743, 427386, 4273882, 4273983, B05D 306

Patent

active

052601048

ABSTRACT:
A method and related apparatuses are disclosed for coating an elongated filament, such as wire, wherein wire is coated with a heated coating material, such as polyetheretherketone (PEEK), and the coated wire is maintained at a temperature and for a period of time sufficient for a desired quantity and size of crystals to form in the coating material and to minimize internal residual stress. Thereafter, the coated wire is rapidly cooled to a temperature below its crystallization temperature, such as in a quenching bath. A crystalline PEEK coating results which has minimized internal residual stress, is less brittle, and has improved cracking, peeling and abrasion resistance over amorphous PEEK coating obtainable using prior methods.

REFERENCES:
patent: 3849192 (1974-11-01), Schmidt
patent: 4391848 (1983-07-01), Hilker
patent: 4606870 (1986-08-01), McGregor
patent: 5075136 (1991-12-01), Nield et al.

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