GB1205478A - Descaling metals - Google Patents

Descaling metals

Info

Publication number
GB1205478A
GB1205478A GB7670/68A GB767068A GB1205478A GB 1205478 A GB1205478 A GB 1205478A GB 7670/68 A GB7670/68 A GB 7670/68A GB 767068 A GB767068 A GB 767068A GB 1205478 A GB1205478 A GB 1205478A
Authority
GB
United Kingdom
Prior art keywords
sodium
naoh
molten
descaling
melt
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
Application number
GB7670/68A
Inventor
Rudolf Kuhn
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB1205478A publication Critical patent/GB1205478A/en
Expired 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00—Apparatus for cleaning or pickling metallic material
    • C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • C23G3/021—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by dipping
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/28—Cleaning or pickling metallic material with solutions or molten salts with molten salts
    • C23G1/32—Heavy metals
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

1,205,478. Descaling ferrous metals. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT. Feb. 16, 1968 [Feb. 16, 1967; July 13, 1967], No. 7670/68. Heading C7E. Descaling of all types of ferrous metal, including highly alloyed steel, is effected by heating with a molten alkali metal hydroxide and then with molten sodium with melts preferably at 230‹ -700‹ C. The sodium melt preferably floats in the alkali metal hydroxide melt and is covered by an inert gas atmosphere and/or salt melt. As shown in Figure 1 the sodium is contained in a funnel 3 which dips into molten NaOH in container 2. Rolls 5 guide the strip or wire through the NaOH, then the sodium and again through the NaOH.
GB7670/68A 1967-02-16 1968-02-16 Descaling metals Expired GB1205478A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED0052292 1967-02-16
DED0053583 1967-07-13

Publications (1)

Publication Number Publication Date
GB1205478A true GB1205478A (en) 1970-09-16

Family

ID=25972562

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7670/68A Expired GB1205478A (en) 1967-02-16 1968-02-16 Descaling metals

Country Status (4)

Country Link
US (1) US3552404A (en)
AT (1) AT293139B (en)
FR (1) FR1571367A (en)
GB (1) GB1205478A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120278A (en) * 1982-05-14 1983-11-30 Rolls Royce Removing surface oxide layer
US4528043A (en) * 1982-05-14 1985-07-09 Rolls-Royce Limited Surface oxide layer treatment

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071020A3 (en) * 1981-06-30 1985-12-27 Kabushiki Kaisha Toshiba Method for removing radioactive material from devices and apparatus therefor
US5246024A (en) * 1989-09-19 1993-09-21 Japan Field Company, Ltd. Cleaning device with a combustible solvent
US5113882A (en) * 1990-08-28 1992-05-19 Electrovert Ltd. Method of cleaning workpieces with a potentially flammable or explosive liquid and drying in the tunnel
DE19618899A1 (en) * 1996-05-10 1997-11-13 Metallgesellschaft Ag Process for removing conversion layers with a soap content from metallic workpieces
ATE288622T1 (en) * 1996-06-24 2005-02-15 Imec Inter Uni Micro Electr APPARATUS AND METHOD FOR WET CLEANING OR ETCHING A FLAT SUBSTRATE
US6016819A (en) * 1997-04-04 2000-01-25 Murray; Gordon High turbulence multiple stage wire pickling system
KR100331356B1 (en) * 1998-03-11 2002-04-06 마스다 노부유키 Pickling device
JP2000345236A (en) * 1999-06-03 2000-12-12 Toshiba Corp Treatment of metallic material and apparatus thereof
EP1411149A1 (en) * 2002-10-18 2004-04-21 Siemens Aktiengesellschaft Process for stripping coatings from components
AT500729B8 (en) * 2004-12-14 2007-02-15 Voest Alpine Ind Anlagen BITING DEVICE AND METHOD FOR CONTINUOUSLY POLISHING A METAL BAND
US20110079747A1 (en) * 2009-10-02 2011-04-07 Mcwhorter Edward Milton Direct current simplex generator

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US876182A (en) * 1905-03-17 1908-01-07 James A Herrick Annealing-furnace.
US1595237A (en) * 1920-11-17 1926-08-10 Minton Ogden Method and apparatus for drying sheet material
US2134457A (en) * 1937-03-02 1938-10-25 Tainton Urlyn Clifton Metal treatment
US2390007A (en) * 1943-12-31 1945-11-27 Dominion Foundries & Steel Apparatus for continuously hot dip coating of tin on coiled strip
US2664901A (en) * 1947-05-09 1954-01-05 Gen Electric Quenching device
US2601863A (en) * 1948-04-06 1952-07-01 United States Steel Corp Method of cleaning hot-dip tin-plate
DE1169757B (en) * 1959-06-18 1964-05-06 Beteiligungs & Patentverw Gmbh Continuous strip pickling line
NL282584A (en) * 1961-08-30
US3067758A (en) * 1962-04-03 1962-12-11 Seymour L Hersh Liquid actuated sealing means
DE1206262B (en) * 1963-02-28 1965-12-02 Schloemann Ag Process for deoxidizing the surface of metal objects by using alkali metal hydride
US3358980A (en) * 1965-01-21 1967-12-19 Inland Steel Co Apparatus for quenching web material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120278A (en) * 1982-05-14 1983-11-30 Rolls Royce Removing surface oxide layer
US4528043A (en) * 1982-05-14 1985-07-09 Rolls-Royce Limited Surface oxide layer treatment

Also Published As

Publication number Publication date
US3552404A (en) 1971-01-05
FR1571367A (en) 1969-06-20
AT293139B (en) 1971-09-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees