CORROSION PREVENTION METHOD FOR CAST IRON PIPE AND CAST IRON PIPE SUBJECTED TO CORROSION PREVENTION TREATMENT
PROBLEM TO BE SOLVED: To provide a corrosion prevention method for a cast iron pipe which eliminates the process of outside surface coating without impairing corrosion resistance and weather resistance, has stable quality, and generates no solvent odor, and a cast iron pipe subjected to corrosion pr...
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| creator | HIROHATA SATOKO SAITO MASAHIKO YAO MASAHIKO |
| description | PROBLEM TO BE SOLVED: To provide a corrosion prevention method for a cast iron pipe which eliminates the process of outside surface coating without impairing corrosion resistance and weather resistance, has stable quality, and generates no solvent odor, and a cast iron pipe subjected to corrosion prevention treatment. SOLUTION: The corrosion prevention method for a cast iron pipe comprises (1) the process of thermal spraying zinc, zinc-aluminum pseudo alloy, or zinc-aluminum alloy onto the outer surface of the cast iron pipe to form a thermal spray coating layer, (2) the process of heating the cast iron pipe and coating an epoxy resin powder coating material on the inside surface of the cast iron pipe to form an inside surface coating layer, and (3) the process of coating a water-based coating material, which contains, as solid matter, (A) 1-15 pts.wt. of an epoxy ester resin, (B) 5-30 pts.wt. of an acrylic resin emulsion, and (C) 55-94 pts.wt. of an acrylic resin dispersion, wherein the total of (A), (B), and (C) is 100 pts.wt., and which contains pigment (D) having a pigment volume concentration of 35-45%, on the surface of the thermal spray coating layer after the process (2) to form an outer surface coating layer using remaining heat of the process (2). COPYRIGHT: (C)2011,JPO&INPIT |
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SOLUTION: The corrosion prevention method for a cast iron pipe comprises (1) the process of thermal spraying zinc, zinc-aluminum pseudo alloy, or zinc-aluminum alloy onto the outer surface of the cast iron pipe to form a thermal spray coating layer, (2) the process of heating the cast iron pipe and coating an epoxy resin powder coating material on the inside surface of the cast iron pipe to form an inside surface coating layer, and (3) the process of coating a water-based coating material, which contains, as solid matter, (A) 1-15 pts.wt. of an epoxy ester resin, (B) 5-30 pts.wt. of an acrylic resin emulsion, and (C) 55-94 pts.wt. of an acrylic resin dispersion, wherein the total of (A), (B), and (C) is 100 pts.wt., and which contains pigment (D) having a pigment volume concentration of 35-45%, on the surface of the thermal spray coating layer after the process (2) to form an outer surface coating layer using remaining heat of the process (2). 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SOLUTION: The corrosion prevention method for a cast iron pipe comprises (1) the process of thermal spraying zinc, zinc-aluminum pseudo alloy, or zinc-aluminum alloy onto the outer surface of the cast iron pipe to form a thermal spray coating layer, (2) the process of heating the cast iron pipe and coating an epoxy resin powder coating material on the inside surface of the cast iron pipe to form an inside surface coating layer, and (3) the process of coating a water-based coating material, which contains, as solid matter, (A) 1-15 pts.wt. of an epoxy ester resin, (B) 5-30 pts.wt. of an acrylic resin emulsion, and (C) 55-94 pts.wt. of an acrylic resin dispersion, wherein the total of (A), (B), and (C) is 100 pts.wt., and which contains pigment (D) having a pigment volume concentration of 35-45%, on the surface of the thermal spray coating layer after the process (2) to form an outer surface coating layer using remaining heat of the process (2). 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SOLUTION: The corrosion prevention method for a cast iron pipe comprises (1) the process of thermal spraying zinc, zinc-aluminum pseudo alloy, or zinc-aluminum alloy onto the outer surface of the cast iron pipe to form a thermal spray coating layer, (2) the process of heating the cast iron pipe and coating an epoxy resin powder coating material on the inside surface of the cast iron pipe to form an inside surface coating layer, and (3) the process of coating a water-based coating material, which contains, as solid matter, (A) 1-15 pts.wt. of an epoxy ester resin, (B) 5-30 pts.wt. of an acrylic resin emulsion, and (C) 55-94 pts.wt. of an acrylic resin dispersion, wherein the total of (A), (B), and (C) is 100 pts.wt., and which contains pigment (D) having a pigment volume concentration of 35-45%, on the surface of the thermal spray coating layer after the process (2) to form an outer surface coating layer using remaining heat of the process (2). COPYRIGHT: (C)2011,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING |
| title | CORROSION PREVENTION METHOD FOR CAST IRON PIPE AND CAST IRON PIPE SUBJECTED TO CORROSION PREVENTION TREATMENT |
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