DE3862982D1 - METHOD FOR INCREASING THE CORROSION RESISTANCE OF A HARDENED AND SELF-TEMPERED ARMORING STEEL BAR. - Google Patents

METHOD FOR INCREASING THE CORROSION RESISTANCE OF A HARDENED AND SELF-TEMPERED ARMORING STEEL BAR.

Info

Publication number
DE3862982D1
DE3862982D1 DE8888870053T DE3862982T DE3862982D1 DE 3862982 D1 DE3862982 D1 DE 3862982D1 DE 8888870053 T DE8888870053 T DE 8888870053T DE 3862982 T DE3862982 T DE 3862982T DE 3862982 D1 DE3862982 D1 DE 3862982D1
Authority
DE
Germany
Prior art keywords
self
tempered
hardened
increasing
corrosion resistance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE8888870053T
Other languages
German (de)
Inventor
Jacques Defourny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Application granted granted Critical
Publication of DE3862982D1 publication Critical patent/DE3862982D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • C21D8/08—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires for concrete reinforcement
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/10—Oxidising
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/015—Anti-corrosion coatings or treating compositions, e.g. containing waterglass or based on another metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Heat Treatment Of Steel (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Abstract

Process in which, during the quenching and self-tempering, a layer protecting against corrosion is formed at the surface of the bar. This layer can be produced by phosphatising with manganese, by oxidation with blowing-in an oxidising agent or by the application of a paint or of a resin. The phosphatising can be preceded by pickling. The protective layer can then be coated with a film of drying oil.
DE8888870053T 1987-04-03 1988-03-29 METHOD FOR INCREASING THE CORROSION RESISTANCE OF A HARDENED AND SELF-TEMPERED ARMORING STEEL BAR. Expired - Lifetime DE3862982D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE8700353A BE1000432A6 (en) 1987-04-03 1987-04-03 Method for improving the corrosion resistance of steel rebar and self-quenching income.

Publications (1)

Publication Number Publication Date
DE3862982D1 true DE3862982D1 (en) 1991-07-04

Family

ID=3882602

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888870053T Expired - Lifetime DE3862982D1 (en) 1987-04-03 1988-03-29 METHOD FOR INCREASING THE CORROSION RESISTANCE OF A HARDENED AND SELF-TEMPERED ARMORING STEEL BAR.

Country Status (5)

Country Link
EP (1) EP0285593B1 (en)
AT (1) ATE63957T1 (en)
BE (1) BE1000432A6 (en)
DE (1) DE3862982D1 (en)
ES (1) ES2023510B3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659356B1 (en) * 1990-03-07 1995-02-17 Liesse Maurice METHOD FOR THE CHEMICAL SURFACE PROTECTION OF METAL OBJECTS.
JP2654268B2 (en) * 1991-05-13 1997-09-17 株式会社東芝 How to use semiconductor devices
CH689307A5 (en) * 1995-04-13 1999-02-15 Cement Intellectual Property L Process for both corrosion inhibition and strengthening the bonding properties of reinforcing metals.
WO2003091480A1 (en) * 2002-04-26 2003-11-06 Liuzhou Construction Machinery Factory General Corrosion resistant prestressed steel bar and its preparing process
GB201409337D0 (en) * 2014-05-23 2014-07-09 Fry Andrew A floor screed reinforcement a method of using such reinforcement to produce a screeded floor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE737025C (en) * 1939-06-21 1943-07-05 Metallgesellschaft Ag Quenchants for heated metals
DE889575C (en) * 1951-06-26 1953-09-10 Dynamit Nobel Ag Fireproof electric ignition pills
DE1153589B (en) * 1957-03-21 1963-08-29 Jenolite Ltd Process for the treatment of the surface of objects made of ferrous metals which are embedded in concrete
GB2041783B (en) * 1979-02-23 1983-05-11 Sumitomo Metal Ind Surface-coated nonmagnetic steel material

Also Published As

Publication number Publication date
EP0285593B1 (en) 1991-05-29
EP0285593A1 (en) 1988-10-05
ES2023510B3 (en) 1992-01-16
ATE63957T1 (en) 1991-06-15
BE1000432A6 (en) 1988-12-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee