Method for manufacturing nails

Details Method for manufacturing nails Method for manufacturing nails

1990-06-08

1991-07-23

Combs, E. Michael

Metal working

Method of mechanical manufacture

Assembling or joining

10 54, 29458, B23P 1904, B21G 320

Patent

active

050331817

ABSTRACT:
Nails suitable for outdoor use, such as, for example, roofing nails, are formed from carbon steel wire precoated with a metallic layer, which has corrosion-resistant properties, such as, for example, a zinc layer applied by pre-galvanizing the stock carbon steel wire. Each nail is formed with a shank and with a head. The metallic layer is discontinuous within a region formed upon the head of each nail. The nails are collated by means of collating wires welded to the shanks of the nails. The collated nails are coiled. The coiled nails are cleaned in a cleaning bath, such as, for example, 1,1,trichloroethane. The cleaned nails are coated with a polymeric layer, which covers the region of the head of each nail where the metallic layer is discontinuous, thus restoring the corrosion-resistant properties of the nails.

REFERENCES:
patent: 2718647 (1955-09-01), Raible
patent: 3083369 (1963-04-01), Peterson
patent: 3451839 (1969-06-01), Cauvin
patent: 4114505 (1978-09-01), Loeser et al.
patent: 4679975 (1987-07-01), Leistner

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