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A factor limiting the more widespread use of precoated steels is the problem of joining such material. Resistance welding is the primary technique used for sheet steel fabrication, but the process is of limited applicability for joining precoated steel because the paint films act as an insulating layer to inhibit the passage of weld current. Consequently, to widen the use and markets for precoated steels and to maintain their competitiveness, there is a need to develop alternative rapid assembly techniques for such products. For this investigation, studies have been primarily concentrated on what were considered as the main options available, namely adhesive bonding, mechanical fastening, fusion welding and hybrid joining. The last comprised a combination of both adhesive bonding and mechanical fastening. A variety of precoated steels were investigated comprising polyvinyl chloride (PVC), polyester, and polyvinyl fluoride (PVF(2)) top coats in combination with epoxy, epoxy phenolic, polyester and lacquer backing coats.

Additional information

Authors: JONES T B, British Steel plc, London (GB)
Bibliographic Reference: EUR 17898 EN (1998) 118pp., FS, ECU 20.00
Availability: Available from the (2)
ISBN: ISBN 92-828-2530-2
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