US2007119715A1PendingUtilityA1

Corrosion Resistant Wire Products and Method of Making Same

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Individually held — no corporate assignee on recordPriority: Nov 25, 2005Filed: Jan 18, 2007Published: May 31, 2007
Est. expiryNov 25, 2025(expired)· nominal 20-yr term from priority
Inventors:Abraham SacksJeffrey SacksHarold DavisWilliam Spilchen
E04F 13/047C25D 7/0607C23C 2/06C23C 22/24C23C 2222/10C23C 2/38C23C 28/02C23C 2/26
52
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Claims

Abstract

Corrosion resistance is achieved for fabricated wire products such as welded or woven stucco mesh, by fabricating the products from pre-galvanized strands of wire, followed by a post-fabrication chromate treatment. In the preferred embodiment, the strands are pre-galvanized by a first hot galvanization step followed by applying a thin electro-galvanization layer.

Claims

exact text as granted — not AI-modified
1 . A method of manufacturing fabricated wire products comprising welded or reverse twist woven wire mesh, comprising the steps of: 
 1. galvanizing wire strands prior to fabricating said mesh;    2. fabricating said mesh from said galvanized wire strands; and,    3. applying a chromate treatment to said fabricated wire mesh.    
   
   
       2 . The method of  claim 1  wherein said step of galvanizing comprises electrogalvanizing said wire strands.  
   
   
       3 . The method of  claim 1  wherein said step of galvanizing comprises hot galvanizing said wire strands followed by electrogalvanizing said wire strands.  
   
   
       4 . The method of  claim 3  wherein said step of electrogalvanizing said wire strands comprises electrogalvanizing an outer layer of said wire strands at less than 0.10 oz./sq. ft.  
   
   
       5 . The method of  claim 1  wherein said mesh comprises at least portions of at least some of said wire strands that have a non-round cross-section.  
   
   
       6 . The method of  claim 5  wherein said step of galvanizing comprises electrogalvanizing said wire strands.  
   
   
       7 . The method of  claim 5  wherein said step of galvanizing comprises hot galvanizing said wire strands followed by electrogalvanizing said wire strands.  
   
   
       8 . The method of  claim 7  wherein said step of electrogalvanizing said wire strands comprises electrogalvanizing an outer layer of said wire strands at less than 0.10 oz./sq. ft.  
   
   
       9 . Welded or reverse twist woven wire mesh manufactured according to the method of any of  claims 1  to  8 .  
   
   
       10 . Welded wire mesh comprising perpendicular strands of wire welded together at their intersections, wherein said strands comprise a first hot galvanized layer of zinc or zinc alloy and a second electrogalvanized layer, said second layer having been subjected to a chromate treatment.  
   
   
       11 . A method of manufacturing wire mesh, comprising providing wire mesh in rolled form, and applying a chromate treatment to said wire mesh while said wire mesh is in rolled form.  
   
   
       12 . The method of  claim 11  wherein said step of applying a chromate treatment comprises submerging said wire mesh in rolled form in a chromating solution.  
   
   
       13 . The method of  claim 12  wherein said chromating solution comprises an aqueous mixture containing hexavalent chromium.  
   
   
       14 . The method of  claim 12  wherein said chromating solution comprises an aqueous mixture containing trivalent chromium.  
   
   
       15 . The method of  claim 11  wherein said chromating treatment results in an iridescent yellow colour.  
   
   
       16 . The method of  claim 11 ,  12  or  13  wherein said wire mesh in rolled form is cleaned to remove an oxide layer therefrom prior to said step of applying a chromate treatment.  
   
   
       17 . Wire mesh manufactured according to the method of any one of claims  11 ,  12 ,  13  or  14 .  
   
   
       18 . The method of  claim 11  wherein said wire mesh in rolled form comprises portions of said mesh having strands with non-round cross sections.  
   
   
       19 . The method of  claim 11  wherein said wire mesh is selected from the group comprising welded wire mesh and reverse twist woven wire mesh.  
   
   
       20 . The method of  claim 19  further comprising the step of fabricating said wire mesh after said step of electrogalvanizing and applying a chromate treatment to said mesh after said step of fabricating.  
   
   
       21 . Wire mesh manufactured according to the method of any one of claims  11  or  12  wherein said wire mesh is selected from the group comprising welded wire mesh and reverse twist woven wire mesh.  
   
   
       22 . A method of manufacturing wire mesh comprising hot galvanizing wire, electrogalvanizing a thin layer over said hot galvanized wire, said hot galvanizing coating having a thickness between 0.08 oz./sq.ft. and 0.20 oz./sq.ft. and said electrogalvanizing having a thickness between 0.02 oz./sq.ft. and 0.10 oz./sq.ft.  
   
   
       23 . The method of  claim 22  further comprising the step of applying a chromate treatment to said wire mesh.  
   
   
       24 . The method of  claim 23  further comprising the step of fabricating said mesh from said wire after said step of electrogalvanizing and before said step of applying a chromate treatment.  
   
   
       25 . A method of manufacturing welded wire corner reinforcements for stucco comprising the steps of: 
 galvanizing wire strands prior to fabricating a mesh;    fabricating said corner reinforcement from said mesh formed from said galvanized wire strands;    applying a chromate treatment to said fabricated corner reinforcement.    
   
   
       26 . A welded wire corner reinforcement manufactured according to the method of  claim 25 .  
   
   
       27 . The method of  claim 25  wherein said step of galvanizing comprises electrogalvanizing said wire strands.  
   
   
       28 . The method of  claim 25  wherein said step of galvanizing comprises hot galvanizing said wire strands followed by electrogalvanizing said wire strands.  
   
   
       29 . The method of  claim 28  wherein said step of electrogalvanizing said wire strands comprises electrogalvanizing an outer layer of said wire strands at less than 0.10 oz./sq. ft.  
   
   
       30 . The method of  claim 25  wherein said mesh comprises at least portions of at least some of said wire strands that have a non-round cross-section.  
   
   
       31 . The method of  claim 30  wherein said step of galvanizing comprises electrogalvanizing said wire strands.  
   
   
       32 . The method of  claim 30  wherein said step of galvanizing comprises hot galvanizing said wire strands followed by electrogalvanizing said wire strands.  
   
   
       33 . The method of  claim 32  wherein said step of electrogalvanizing said wire strands comprises electrogalvanizing an outer layer of said wire strands at less than 0.10 oz./sq. ft.  
   
   
       34 . Welded wire corner reinforcement for stucco comprising wire strands welded together at their intersections, wherein said strands comprise a first hot galvanized layer of zinc or zinc alloy, a second electrogalvanized layer of zinc, said second layer having been subjected to a chromate treatment.  
   
   
       35 . Use of welded or reverse twist woven wire mesh manufactured according to the method of any one of  claims 1  to  8  as stucco lath.  
   
   
       36 . A building comprising a stucco surface, a stucco lath embedded in said surface, wherein said lath comprises mesh manufactured according to the method of any one of  claims 1  to  8 .

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