DE3866998D1 - METHOD FOR TREATING ROLLING STEEL TO INCREASE CORROSION RESISTANCE. - Google Patents

METHOD FOR TREATING ROLLING STEEL TO INCREASE CORROSION RESISTANCE.

Info

Publication number
DE3866998D1
DE3866998D1 DE8888113916T DE3866998T DE3866998D1 DE 3866998 D1 DE3866998 D1 DE 3866998D1 DE 8888113916 T DE8888113916 T DE 8888113916T DE 3866998 T DE3866998 T DE 3866998T DE 3866998 D1 DE3866998 D1 DE 3866998D1
Authority
DE
Germany
Prior art keywords
bar
corrosion resistance
rolling steel
coating
increase corrosion
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 - Fee Related
Application number
DE8888113916T
Other languages
German (de)
Inventor
Max Dipl Ing Aicher
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.)
Stahlwerk Annahuette Max Aicher & Co Kg 8229 Ainring De GmbH
Original Assignee
Stahlwerk Annahuette Max Aicher & Co Kg 8229 Ainring De GmbH
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 Stahlwerk Annahuette Max Aicher & Co Kg 8229 Ainring De GmbH filed Critical Stahlwerk Annahuette Max Aicher & Co Kg 8229 Ainring De GmbH
Priority to DE8888113916T priority Critical patent/DE3866998D1/en
Application granted granted Critical
Publication of DE3866998D1 publication Critical patent/DE3866998D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
    • B21B2001/383—Cladded or coated products

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Manufacturing & Machinery (AREA)
  • Metal Rolling (AREA)
  • Heat Treatment Of Steel (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating With Molten Metal (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Electric Cable Arrangement Between Relatively Moving Parts (AREA)
  • Heat Treatment Of Articles (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Laminated Bodies (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

For protection of concrete reinforcing bar from corrosion, the bar is descaled by pressurised water at about 200-1000 bar, pref. 300-400 bar, in the rolling line and, immediately afterwards, is rapidly cooled by water to a temp. below 600 deg. C before application of a coating of non-ferrous metal, pref. Zn, by spraying or dip coating, followed by a coating of epoxy resin. The quenching produces and edge zone of martensite and bainite, which is tempered by remaining heat in the core of the bar.
DE8888113916T 1987-09-01 1988-08-26 METHOD FOR TREATING ROLLING STEEL TO INCREASE CORROSION RESISTANCE. Expired - Fee Related DE3866998D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888113916T DE3866998D1 (en) 1987-09-01 1988-08-26 METHOD FOR TREATING ROLLING STEEL TO INCREASE CORROSION RESISTANCE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3729177A DE3729177C1 (en) 1987-09-01 1987-09-01 Process for treating rolled steel to increase resistance to corrosion
DE8888113916T DE3866998D1 (en) 1987-09-01 1988-08-26 METHOD FOR TREATING ROLLING STEEL TO INCREASE CORROSION RESISTANCE.

Publications (1)

Publication Number Publication Date
DE3866998D1 true DE3866998D1 (en) 1992-01-30

Family

ID=6334972

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3729177A Expired DE3729177C1 (en) 1987-09-01 1987-09-01 Process for treating rolled steel to increase resistance to corrosion
DE8888113916T Expired - Fee Related DE3866998D1 (en) 1987-09-01 1988-08-26 METHOD FOR TREATING ROLLING STEEL TO INCREASE CORROSION RESISTANCE.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3729177A Expired DE3729177C1 (en) 1987-09-01 1987-09-01 Process for treating rolled steel to increase resistance to corrosion

Country Status (15)

Country Link
EP (1) EP0305914B1 (en)
JP (1) JPS6475692A (en)
CN (1) CN1031724A (en)
AT (1) ATE70568T1 (en)
CA (1) CA1306391C (en)
DD (1) DD282246A5 (en)
DE (2) DE3729177C1 (en)
DK (1) DK460688A (en)
ES (1) ES2028964T3 (en)
GR (1) GR3004067T3 (en)
HU (1) HU203586B (en)
NO (1) NO176578C (en)
PL (1) PL158408B1 (en)
PT (1) PT88371B (en)
SU (1) SU1674689A3 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1005964A6 (en) * 1992-06-29 1994-04-05 Centre Rech Metallurgique Protection method of hot rolled steel product.
GB2313382A (en) * 1996-05-23 1997-11-26 Vidal Henri Brevets Metal coating
DE19828827C1 (en) * 1998-06-27 2000-07-20 Grillo Werke Ag Thermal sprayed corrosion layer for reinforced concrete and method of manufacturing the same
DE102004059008A1 (en) * 2004-12-08 2006-06-14 Volkswagen Ag Coating metal components comprises selectively applying a less noble metal than that of the component
CN202925384U (en) * 2012-10-29 2013-05-08 厦门新钢金属制品有限公司 Complex coating ballastless track board insulation reinforcing steel bar
CN102912692A (en) * 2012-10-29 2013-02-06 厦门新钢金属制品有限公司 Ballastless track slab insulating bar reinforcement with composite coating
US20150218815A1 (en) * 2014-01-31 2015-08-06 Mortar Net Usa, Ltd. Corrosion resistant structural reinforcement member
RU2573304C9 (en) * 2014-03-11 2016-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Пензенский государственный университет архитектуры и строительства Increasing life and hardness of rod- and pipe-type reinforcements
CN104878332B (en) * 2015-06-03 2017-08-01 河北钢铁股份有限公司邯郸分公司 A kind of raising production method of the hot radical galvanized sheet with product decay resistance
DE102016106421A1 (en) 2016-04-08 2017-10-12 Andrey Senokosov Cleaning process for riser pipes and equipment therefor
CN106040755B (en) * 2016-07-16 2018-02-27 太原科技大学 Cathodic protection rollgang equipped with conductive carrying roller
CN106001133B (en) * 2016-07-16 2018-02-27 太原科技大学 It is formed with the rollgang of sagging exposed electric wire cathodic protection
CN107794476A (en) * 2017-09-11 2018-03-13 常熟市双羽铜业有限公司 A kind of corrosion resisting steel structural member
CN109821923A (en) * 2019-02-26 2019-05-31 桂林理工大学 A kind of production method of anti-corrosion coating plain bar
CN115261733B (en) * 2022-08-18 2023-06-06 攀钢集团攀枝花钢铁研究院有限公司 Abrasion-resistant corrosion-resistant steel rail for subway and production method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442485A (en) * 1944-06-24 1948-06-01 Frederick C Cook Method of descaling and coating hot-rolled ferrous metal
DE1602129B1 (en) * 1967-06-21 1970-08-27 Roechlingsche Eisen & Stahl Cooling pipe for cooling rolled material
DE2108314A1 (en) * 1970-08-05 1972-02-10 VEB Schwermaschinenbau-Kombinat Ernst Thallmann Magdeburg, χ 3011 Magdeburg Rapid cooling rolled rod - of structural steel by a controlled - water quench method
DE2353034B2 (en) * 1972-10-31 1980-03-13 Centre De Recherches Metallurgiques- Centrum Voor Research In De Metallurgie, Bruessel Process for improving the mechanical strength values of rolled steel products
DE3125146A1 (en) * 1981-06-26 1983-01-13 Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Device for descaling hot steel ingots

Also Published As

Publication number Publication date
EP0305914A3 (en) 1989-08-09
DK460688A (en) 1989-03-02
EP0305914A2 (en) 1989-03-08
HU203586B (en) 1991-08-28
DE3729177C1 (en) 1989-01-05
GR3004067T3 (en) 1993-03-31
CA1306391C (en) 1992-08-18
PT88371B (en) 1993-02-26
NO176578C (en) 1995-04-26
DK460688D0 (en) 1988-08-17
NO883781L (en) 1989-03-02
EP0305914B1 (en) 1991-12-18
NO176578B (en) 1995-01-16
PL158408B1 (en) 1992-08-31
NO883781D0 (en) 1988-08-24
PT88371A (en) 1989-07-31
JPH0445591B2 (en) 1992-07-27
PL274389A1 (en) 1989-04-17
JPS6475692A (en) 1989-03-22
ATE70568T1 (en) 1992-01-15
CN1031724A (en) 1989-03-15
ES2028964T3 (en) 1992-07-16
HUT52178A (en) 1990-06-28
DD282246A5 (en) 1990-09-05
SU1674689A3 (en) 1991-08-30

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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