EP 0059070 A1 19820901 - Steel corrosion protected members.
Title (en)
Steel corrosion protected members.
Title (de)
Korrosionsgeschützte Stahlstäbe.
Title (fr)
Barres d'acier protégées contre la corrosion.
Publication
Application
Priority
- GB 8105742 A 19810224
- GB 8110391 A 19810402
Abstract (en)
A steel corrosion-protected member such as a reinforcing bar, a rock anchor, tie bar or prestressing tendon comprises a core of carbon or alloy steel with a cladding of stainless steel or copper. A number of methods of applying the cladding are described including inserting a mild steel rod or bar into a stainless steel tube and hot rolling the rod and tube together to reduce diameter and apply the usual rib pattern. Alternatively a composite billet may be extruded and then rolled down to size. The resulting reinforcing bar shows a carbon steel core (100) to which is welded by pressure a stainless steel cladding (101) with ribs (107). A rock anchor is also described which has a core of carbon or alloy steel clad with stainless steel and includes a threaded end formed on the stainless steel.
IPC 1-7
IPC 8 full level
C21D 8/08 (2006.01); E04C 5/01 (2006.01); E04C 5/08 (2006.01)
CPC (source: EP)
C21D 8/08 (2013.01); C23F 15/00 (2013.01); E04C 5/015 (2013.01); E04C 5/08 (2013.01)
Citation (search report)
- [A] DE 2731780 B2 19800522
- [A] US 4242150 A 19801230 - MAXWELL HERRIS M [US]
- [AP] DE 2944878 A1 19810521 - DYCKERHOFF & WIDMANN AG [DE]
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 82300810 A 19820217