CA1088457A - Traitement d'articles metalliques au moyen de sels fondus oxydants avant de les immerger dans l'electrolyte - Google Patents

Traitement d'articles metalliques au moyen de sels fondus oxydants avant de les immerger dans l'electrolyte

Info

Publication number: CA1088457A
Authority: CA; Canada
Prior art keywords: electrolyte; bath; salt; molten; group
Prior art date: 1976-04-01
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

CA275,220A

Other languages

English (en)

Inventor

Donald R. Zaremski

Albert Krepler

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.)

Ruthner Industrieanlagen AG

Allegheny Ludlum Corp

Original Assignee

Ruthner Industrieanlagen AG

Allegheny Ludlum Corp

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.)

1976-04-01

Filing date

1977-03-31

Publication date

1980-10-28

1976-04-01 Priority claimed from US05/672,586 external-priority patent/US4026777A/en

1977-02-09 Priority claimed from US05/767,177 external-priority patent/US4066521A/en

1977-03-31 Application filed by Ruthner Industrieanlagen AG, Allegheny Ludlum Corp filed Critical Ruthner Industrieanlagen AG

1980-10-28 Application granted granted Critical

1980-10-28 Publication of CA1088457A publication Critical patent/CA1088457A/fr

Status Expired legal-status Critical Current

Links

150000003839 salts Chemical class 0.000 title claims abstract description 27
239000003792 electrolyte Substances 0.000 title claims abstract description 20
230000001590 oxidative effect Effects 0.000 title claims abstract description 12
238000007654 immersion Methods 0.000 title claims description 8
238000000034 method Methods 0.000 claims abstract description 14
230000007935 neutral effect Effects 0.000 claims abstract description 6
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 3
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 3
229910002651 NO3 Inorganic materials 0.000 claims abstract description 3
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 3
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 3
229910052783 alkali metal Inorganic materials 0.000 claims abstract description 3
150000001340 alkali metals Chemical class 0.000 claims abstract description 3
239000007864 aqueous solution Substances 0.000 claims abstract description 3
VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims description 13
235000010344 sodium nitrate Nutrition 0.000 claims description 6
PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical group [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 5
229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
235000011152 sodium sulphate Nutrition 0.000 claims description 5
150000001875 compounds Chemical class 0.000 claims description 4
FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
150000001805 chlorine compounds Chemical class 0.000 claims description 2
ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical class [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 claims description 2
150000004673 fluoride salts Chemical class 0.000 claims description 2
150000002823 nitrates Chemical class 0.000 claims description 2
150000002826 nitrites Chemical class 0.000 claims description 2
VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 2
235000010333 potassium nitrate Nutrition 0.000 claims description 2
239000004323 potassium nitrate Substances 0.000 claims description 2
239000004317 sodium nitrate Substances 0.000 claims description 2
150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 2
229910000851 Alloy steel Inorganic materials 0.000 claims 1
230000001143 conditioned effect Effects 0.000 claims 1
238000002844 melting Methods 0.000 claims 1
230000008018 melting Effects 0.000 claims 1
-1 sufites Chemical class 0.000 claims 1
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
229910052751 metal Inorganic materials 0.000 description 10
239000002184 metal Substances 0.000 description 10
239000002253 acid Substances 0.000 description 7
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
239000000243 solution Substances 0.000 description 4
239000007921 spray Substances 0.000 description 4
229910000831 Steel Inorganic materials 0.000 description 3
230000001419 dependent effect Effects 0.000 description 3
239000011780 sodium chloride Substances 0.000 description 3
229910001220 stainless steel Inorganic materials 0.000 description 3
239000010959 steel Substances 0.000 description 3
230000003750 conditioning effect Effects 0.000 description 2
229910052500 inorganic mineral Inorganic materials 0.000 description 2
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
239000011707 mineral Substances 0.000 description 2
238000005554 pickling Methods 0.000 description 2
239000010935 stainless steel Substances 0.000 description 2
108091006629 SLC13A2 Proteins 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
239000000956 alloy Substances 0.000 description 1
230000008094 contradictory effect Effects 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
239000000542 fatty acid esters of ascorbic acid Substances 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
230000001771 impaired effect Effects 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000006386 neutralization reaction Methods 0.000 description 1
230000008929 regeneration Effects 0.000 description 1
238000011069 regeneration method Methods 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
239000002699 waste material Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
- C25F1/06—Iron or steel
- 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

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Electrochemistry (AREA)
General Chemical & Material Sciences (AREA)
Mechanical Engineering (AREA)
Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

CA275,220A 1976-04-01 1977-03-31 Traitement d'articles metalliques au moyen de sels fondus oxydants avant de les immerger dans l'electrolyte Expired CA1088457A (fr)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US672,586		1976-04-01
US05/672,586 US4026777A (en)	1976-04-01	1976-04-01	Metallic descaling system
US05/767,177 US4066521A (en)	1977-02-09	1977-02-09	Metallic descaling system
US767,177		1977-02-09

Publications (1)

Publication Number	Publication Date
CA1088457A true CA1088457A (fr)	1980-10-28

Family

ID=27100786

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA275,220A Expired CA1088457A (fr)	1976-04-01	1977-03-31	Traitement d'articles metalliques au moyen de sels fondus oxydants avant de les immerger dans l'electrolyte

Country Status (11)

Country	Link
JP (1)	JPS5939518B2 (fr)
AU (1)	AU505146B2 (fr)
BR (1)	BR7701895A (fr)
CA (1)	CA1088457A (fr)
DE (1)	DE2714136C3 (fr)
ES (1)	ES457467A1 (fr)
FR (1)	FR2346466A1 (fr)
GB (1)	GB1520705A (fr)
IT (1)	IT1082692B (fr)
MX (1)	MX147289A (fr)
SE (1)	SE433950B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS59157288A (ja) *	1983-02-25	1984-09-06	Nippon Stainless Steel Co Ltd	ステンレス鋼帯の酸洗方法
JPS60121285A (ja) *	1983-12-02	1985-06-28	Nisshin Steel Co Ltd	ステンレス鋼の酸洗前処理用溶融塩組成物

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE438799A (fr) *	1939-05-24
FR1226856A (fr) *	1958-12-23	1960-08-16		Procédé de décapage des aciers alliés
GB1082409A (en) *	1963-12-04	1967-09-06	Mitsubishi Heavy Ind Ltd	An electrolytic descaling solution
GB1082410A (en) *	1963-12-26	1967-09-06	Mitsubishi Heavy Ind Ltd	An electrolytic descaling method
US3260619A (en) *	1965-02-04	1966-07-12	Kolene Corp	Methods and compositions for cleaning metal
DE1496785A1 (de) *	1966-12-10	1969-08-07	Dynamit Nobel Ag	Verfahren zur Entfernung von Metallpulver und niederen Metalloxyden von der Oberflaeche mit Natriumhydrid gebeizter Drahtbuendel
US3951681A (en) *	1973-11-01	1976-04-20	Kolene Corporation	Method for descaling ferrous metals

1977
- 1977-03-22 GB GB11937/77A patent/GB1520705A/en not_active Expired
- 1977-03-23 AU AU23523/77A patent/AU505146B2/en not_active Expired
- 1977-03-24 SE SE7703405A patent/SE433950B/xx unknown
- 1977-03-28 BR BR7701895A patent/BR7701895A/pt unknown
- 1977-03-30 DE DE2714136A patent/DE2714136C3/de not_active Expired
- 1977-03-31 CA CA275,220A patent/CA1088457A/fr not_active Expired
- 1977-03-31 IT IT48766/77A patent/IT1082692B/it active
- 1977-03-31 FR FR7709776A patent/FR2346466A1/fr active Granted
- 1977-03-31 JP JP52036897A patent/JPS5939518B2/ja not_active Expired
- 1977-03-31 MX MX168595A patent/MX147289A/es unknown
- 1977-04-01 ES ES457467A patent/ES457467A1/es not_active Expired

Also Published As

Publication number	Publication date
JPS52129635A (en)	1977-10-31
DE2714136A1 (de)	1977-10-20
ES457467A1 (es)	1978-08-16
IT1082692B (it)	1985-05-21
AU505146B2 (en)	1979-11-08
DE2714136B2 (de)	1981-07-23
MX147289A (es)	1982-11-10
SE433950B (sv)	1984-06-25
SE7703405L (sv)	1977-10-02
AU2352377A (en)	1978-09-28
FR2346466A1 (fr)	1977-10-28
BR7701895A (pt)	1977-11-29
JPS5939518B2 (ja)	1984-09-25
FR2346466B1 (fr)	1981-11-27
GB1520705A (en)	1978-08-09
DE2714136C3 (de)	1986-05-28

Legal Events

Date	Code	Title	Description
1997-10-28	MKEX	Expiry

Publication	Publication Date	Title
US5490908A (en)	1996-02-13	Annealing and descaling method for stainless steel
EP0059527B1 (fr)	1985-11-27	Procédé de décapage électrolytique sans acide à haute densité de courant
US4026777A (en)	1977-05-31	Metallic descaling system
US3666580A (en)	1972-05-30	Chemical milling method and bath
US4415415A (en)	1983-11-15	Method of controlling oxide scale formation and descaling thereof from metal articles
US3753815A (en)	1973-08-21	Method and bath for treating titanium
US4012299A (en)	1977-03-15	Metallic descaling system
CA1046387A (fr)	1979-01-16	Methode et compose pour le nettoyage de la surface de metaux ferreux
EP4056737A1 (fr)	2022-09-14	Liquide ionique pour décapage d'acier inoxydable et procédé de décapage d'acier inoxydable en utilisant celui-ci
CA1088457A (fr)	1980-10-28	Traitement d'articles metalliques au moyen de sels fondus oxydants avant de les immerger dans l'electrolyte
US3468774A (en)	1969-09-23	Electrolytic descaling of titanium and its alloys
US4066521A (en)	1978-01-03	Metallic descaling system
US3632490A (en)	1972-01-04	Method of electrolytic descaling and pickling
JPH044397B2 (fr)	1992-01-28
US3390021A (en)	1968-06-25	Metal treatment
US5221358A (en)	1993-06-22	Descaling/deglassing salt composition and method
US3161598A (en)	1964-12-15	Method and composition for chemical rust removal
US3880585A (en)	1975-04-29	Method of inhibiting stress cracking
US3993482A (en)	1976-11-23	Anticorrosion zinc based coating material
JPH10324986A (ja)	1998-12-08	高Ｃｒステンレス鋼の脱スケール用アルカリ溶融塩浴
US3027310A (en)	1962-03-27	Cleaning bath and method of cleaning moving metal strip
JP2002348700A (ja)	2002-12-04	Ｃｒ系ステンレス冷延焼鈍鋼板の脱スケール方法
Goodrich et al.	1961	The Dissolution of Steel in the System NH 4 NO 3‐NH 3‐H 2 O
JP2965423B2 (ja)	1999-10-18	高Ｃｒ含有フェライト系ステンレス鋼板の酸洗法
US2172421A (en)	1939-09-12	Corrosion-resistant ferrous alloys