Reusable stud welding ferrule containing boron nitride

Details Reusable stud welding ferrule containing boron nitride Reusable stud welding ferrule containing boron nitride

1990-11-09

1992-08-04

Seidel, Richard K.

Metal fusion bonding

With means to cool work or product

228216, 219 99, B23K 920

Patent

active

051351544

ABSTRACT:
A welding accessory which includes an arc shield having outer and inner peripheral surfaces such that a weld can be formed within the inner peripheral surface as the arc shield shields the weld form external air during forming of the weld. The arc shield includes a ceramic material having not less than 40 weight % of boron nitride. The arc shield may be formed of a composite of boron nitride and silicon nitride, a composite of boron nitride and alumina nitride, a composite of boron nitride, aluminum and silicon nitride, or a composite of boron nitride and zirconia.

REFERENCES:
patent: 2776218 (1957-01-01), Taylor
patent: 3557339 (1971-01-01), Rondeau
patent: 3597573 (1971-08-01), Ettinger
patent: 3673676 (1972-07-01), Lock et al.
patent: 4666873 (1987-05-01), Morris, Jr. et al.
patent: 4764489 (1988-08-01), Bolt
patent: 4904625 (1990-02-01), Shaffer
patent: 4946809 (1990-08-01), Paciorek et al.

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