| 摘要 |
Methods (and products produced by the methods) are disclosed for sealing the cut end (13) of a concrete reinforcing bar (10, 56) or other long product th at comprises a core (12) of mild steel or other corrosion susceptible metal and a cladding (14) of stainless steel or other corrosion resistant metal bonded t o an axially extending outer face of the core. The methods include the steps o f providing a cap (20, 50, 80) of corrosion resistant material such as stainle ss steel or a plastics material, and shaped so that it can be mounted on the cu t end of the long product with the exposed portion (18) of the core enclosed b y the cap. The cap has a skirt (24) that overlies the cladding adjacent the cu t end. A seal is formed in various ways between the skirt and the cladding. Th e seal may be formed by filling the space between the cut end and the cap with resinous sealant (26) inserted in the cap before it is mounted over the cut end. In the case of a metal cap voids (30) in the sealant are removed by deforming the cap (22") after it is mounted over the cut end to reduce the volume of the space enclosed by the cap. The sealant may alternatively be a solder (52) or the like. The skirt of a metallic cap may be crimped, swaged, forged or welded to the cladding. |
