Environmentally protected reinforcement dowel pins and...

Details Environmentally protected reinforcement dowel pins and... Environmentally protected reinforcement dowel pins and...

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 21/00 (2006.01)

Patent

CA 2567874

Galvanically protected reinforcement dowel pins and methods of producing the same. In one embodiment, the reinforcement dowel pins comprise a bar or tube, the longitudinal exposed surfaces of which are covered by a heavy gauge of a sacrificial metal, such as zinc, zinc alloy, magnesium, magnesium alloy, aluminum, or aluminum alloy. The bar or tube comprises steel, carbon steel, or other ferrous metal. The heavy gauge of sacrificial metal is applied to the ferrous metal by various processes, such as roll bonding, lock seaming, welding, die casting, flame spraying, plasma spraying, dipping, sinking, and drawing. The resulting reinforcement dowel pins resist corrosion without sacrificing structural integrity, and are reasonable in materials and manufacturing costs. These dowel pins may be installed in adjacent concrete panels using conventional methods, and therefore do not introduce additional costs in installation.

Goupilles de renforcement protEgEes par galvanisation et leur procédé de production. Dans un mode de rEalisation, les goupilles de renforcement comprennent une barre ou un tube, dont les surfaces longitudinales exposEes sont recouvertes d'un mEtal sacrificiel fort, tel que du zinc, un alliage de zinc, du magnEsium, un alliage de magnEsium, de l'aluminium, ou un alliage d'aluminium. La barre ou le tube comprend de l'acier, de l'acier carbone, ou un autre mEtal ferreux. L'épaisseur du mEtal sacrificiel est appliquEe sur le mEtal ferreux par des divers procEdEs comme le collage, l'agrafage, le soudage, le moulage sous pression, la projection A la flamme, la projection plasma, le trempage, le coulage, et l'Etirage. Les goupilles de renforcement obtenues rEsistent A la corrosion sans sacrifier l'intEgritE structurale, et les coUts de matEriaux et de fabrication sont raisonnables. Ces goupilles peuvent Etre installEes dans des panneaux de bEton adjacents en utilisant des procédés classiques, et ainsi n'induisent pas de coUt supplémentaire d'installation.

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