CA1021672A - Methode de deposition d'un revetement isolant sur une tole en acier oriente au silicone - Google Patents

Methode de deposition d'un revetement isolant sur une tole en acier oriente au silicone

Info

Publication number
CA1021672A
CA1021672A CA209,263A CA209263A CA1021672A CA 1021672 A CA1021672 A CA 1021672A CA 209263 A CA209263 A CA 209263A CA 1021672 A CA1021672 A CA 1021672A
Authority
CA
Canada
Prior art keywords
forming
steel sheet
insulating coating
silicon steel
oriented silicon
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
CA209,263A
Other languages
English (en)
Inventor
Hiroshi Shimanaka
Toshio Ichida
Shigeru Kobayashi
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel 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.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Application granted granted Critical
Publication of CA1021672A publication Critical patent/CA1021672A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
    • C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
    • 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
    • C23C22/05—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 using aqueous solutions
    • C23C22/06—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 using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/24—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
    • C23C22/33—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 using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds containing also phosphates
    • 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
    • C23C22/74—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 for obtaining burned-in conversion coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si based alloys in the form of sheets
    • H01F1/14783—Fe-Si based alloys in the form of sheets with insulating coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Power Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Insulating Bodies (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Soft Magnetic Materials (AREA)
CA209,263A 1973-11-17 1974-09-16 Methode de deposition d'un revetement isolant sur une tole en acier oriente au silicone Expired CA1021672A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12949573A JPS5652117B2 (fr) 1973-11-17 1973-11-17

Publications (1)

Publication Number Publication Date
CA1021672A true CA1021672A (fr) 1977-11-29

Family

ID=15010880

Family Applications (1)

Application Number Title Priority Date Filing Date
CA209,263A Expired CA1021672A (fr) 1973-11-17 1974-09-16 Methode de deposition d'un revetement isolant sur une tole en acier oriente au silicone

Country Status (13)

Country Link
US (1) US3985583A (fr)
JP (1) JPS5652117B2 (fr)
BE (1) BE821596A (fr)
BR (1) BR7409439A (fr)
CA (1) CA1021672A (fr)
DE (1) DE2450850C3 (fr)
DK (1) DK148692C (fr)
FI (1) FI57976C (fr)
FR (1) FR2251610B1 (fr)
GB (1) GB1482546A (fr)
IT (1) IT1025703B (fr)
NO (1) NO139971C (fr)
SE (1) SE420109B (fr)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032366A (en) * 1975-05-23 1977-06-28 Allegheny Ludlum Industries, Inc. Grain-oriented silicon steel and processing therefor
JPS5917521B2 (ja) * 1975-08-22 1984-04-21 川崎製鉄株式会社 方向性けい素鋼板に耐熱性のよい上塗り絶縁被膜を形成する方法
IT1115840B (it) * 1977-03-09 1986-02-10 Centro Speriment Metallurg Soluzione di rivestimenti per acciai per impieghi magnetici
JPS53129116A (en) * 1977-04-18 1978-11-10 Nippon Steel Corp Oriented electromagnetic steel sheet with excellent magnetic characteristic s
JPS5655574A (en) * 1979-10-15 1981-05-16 Nippon Steel Corp Manufacture of nondirectional magnetic steel sheet excellent in iron loss and magnetostriction characteristic
US4269634A (en) * 1979-12-04 1981-05-26 Westinghouse Electric Corp. Loss reduction in oriented iron-base alloys containing sulfur
DE3172671D1 (en) * 1980-07-24 1985-11-21 Nippon Kinzoku Co Ltd Process for surface treatment of stainless steel sheet
JPS58185749U (ja) * 1982-05-31 1983-12-09 株式会社ノーリツ 気化バ−ナを備えた温水器
JPS6141778A (ja) * 1984-08-02 1986-02-28 Nippon Steel Corp 張力付加性およびスベリ性の優れた方向性電磁鋼板の絶縁皮膜形成方法
EP0215134B1 (fr) 1985-02-22 1990-08-08 Kawasaki Steel Corporation Procede de production de plaques d'acier au silicium unidirectionnelles avec une perte de fer extremement faible
US4909864A (en) * 1986-09-16 1990-03-20 Kawasaki Steel Corp. Method of producing extra-low iron loss grain oriented silicon steel sheets
US6280862B1 (en) * 1997-04-03 2001-08-28 Kawasaki Steel Corporation Ultra-low iron loss grain-oriented silicon steel sheet
KR100554559B1 (ko) * 1997-12-12 2006-05-25 제이에프이 스틸 가부시키가이샤 스트레스릴리프어닐링이가능하고내용제성이뛰어난전자강판및그의제조방법
JP4479047B2 (ja) * 2000-03-30 2010-06-09 Ｊｆｅスチール株式会社 極めて鉄損の低い一方向性電磁鋼板の製造方法
JP2005317683A (ja) * 2004-04-27 2005-11-10 Nippon Steel Corp ３相積み鉄心用の方向性電磁鋼板
JP4747564B2 (ja) 2004-11-30 2011-08-17 Ｊｆｅスチール株式会社 方向性電磁鋼板
JP5230194B2 (ja) 2005-05-23 2013-07-10 新日鐵住金株式会社 被膜密着性に優れる方向性電磁鋼板およびその製造方法
JP5063902B2 (ja) * 2006-02-17 2012-10-31 新日本製鐵株式会社 方向性電磁鋼板とその絶縁被膜処理方法
JP4983334B2 (ja) * 2007-03-28 2012-07-25 Ｊｆｅスチール株式会社 方向性電磁鋼板用絶縁被膜処理液および方向性電磁鋼板の製造方法
JP5181571B2 (ja) 2007-08-09 2013-04-10 Ｊｆｅスチール株式会社 方向性電磁鋼板用クロムフリー絶縁被膜処理液および絶縁被膜付方向性電磁鋼板の製造方法
US9011585B2 (en) 2007-08-09 2015-04-21 Jfe Steel Corporation Treatment solution for insulation coating for grain-oriented electrical steel sheets
JP5194641B2 (ja) 2007-08-23 2013-05-08 Ｊｆｅスチール株式会社 方向性電磁鋼板用絶縁被膜処理液および絶縁被膜付方向性電磁鋼板の製造方法
JP5104128B2 (ja) 2007-08-30 2012-12-19 Ｊｆｅスチール株式会社 方向性電磁鋼板用クロムフリー絶縁被膜処理液および絶縁被膜付方向性電磁鋼板の製造方法
KR101263139B1 (ko) 2010-02-18 2013-05-15 신닛테츠스미킨 카부시키카이샤 무방향성 전자기 강판 및 그 제조 방법
MX2013001334A (es) 2010-08-06 2013-05-09 Jfe Steel Corp Lamina de acero electrico de grano orientado.
BR112013001358B1 (pt) * 2010-08-06 2019-07-02 Jfe Steel Corporation Chapa de aço elétrico de grãos orientados e método para a fabricação da mesma
JP5434999B2 (ja) 2011-09-16 2014-03-05 Ｊｆｅスチール株式会社 鉄損特性に優れる方向性電磁鋼板の製造方法
US20140272399A1 (en) * 2011-11-04 2014-09-18 Tata Steel Uk Limited Coated grain oriented steel
CN104024474A (zh) * 2011-12-28 2014-09-03 杰富意钢铁株式会社 具有涂层的取向性电磁钢板及其制造方法
KR101707539B1 (ko) 2012-07-26 2017-02-16 제이에프이 스틸 가부시키가이샤 방향성 전자 강판의 제조 방법
US9748028B2 (en) 2012-07-26 2017-08-29 Jfe Steel Corporation Method for producing grain-oriented electrical steel sheet
PL2954095T3 (pl) * 2013-02-08 2023-09-25 Thyssenkrupp Electrical Steel Gmbh Roztwór do tworzenia powłok izolacyjnych i blach elektrycznych o ziarnach zorientowanych
JP6156646B2 (ja) 2013-10-30 2017-07-05 Ｊｆｅスチール株式会社 磁気特性および被膜密着性に優れる方向性電磁鋼板
JP5900705B2 (ja) 2014-01-31 2016-04-06 Ｊｆｅスチール株式会社 クロムフリー張力被膜用処理液、クロムフリー張力被膜の形成方法およびクロムフリー張力被膜付き方向性電磁鋼板の製造方法
KR102007108B1 (ko) 2015-03-27 2019-08-02 제이에프이 스틸 가부시키가이샤 절연 피막이 형성된 방향성 전기 강판 및 그 제조 방법
EP3276043B1 (fr) 2015-03-27 2021-12-15 JFE Steel Corporation Tôle d'acier magnétique orientée revêtue d'un isolant et procédé de fabrication de celle-ci
WO2018051902A1 (fr) 2016-09-13 2018-03-22 Ｊｆｅスチール株式会社 Tôle d'acier électrique à grains orientés avec revêtement d'isolation/tension sans chrome, et son procédé de production
KR101850133B1 (ko) 2016-10-26 2018-04-19 주식회사 포스코 방향성 전기강판용 소둔 분리제 조성물, 방향성 전기강판 및 방향성 전기강판의 제조방법
US11894167B2 (en) 2016-12-28 2024-02-06 Jfe Steel Corporation Grain-oriented electrical steel sheet, iron core of transformer, transformer, and method for reducing noise of transformer
WO2019106976A1 (fr) 2017-11-28 2019-06-06 Ｊｆｅスチール株式会社 Tôle magnétique en acier à grains orientés et son procédé de production
EP3722460A4 (fr) 2018-02-06 2020-11-11 JFE Steel Corporation Tôle d'acier électromagnétique à revêtement isolant et son procédé de production
CN111918981A (zh) 2018-03-30 2020-11-10 杰富意钢铁株式会社 取向性电磁钢板的制造方法及连续成膜装置
WO2019230466A1 (fr) 2018-05-30 2019-12-05 Ｊｆｅスチール株式会社 Tôle d'acier électromagnétique équipée d'un film isolant et procédé de fabrication associé, noyau de fer de transformateur formé en utilisant une tôle d'acier électromagnétique, transformateur et procédé de réduction de perte diélectrique de transformateur
CN112534083B (zh) 2018-07-31 2022-05-17 杰富意钢铁株式会社 绝缘被膜处理液、带有绝缘被膜的取向性电磁钢板及其制造方法
WO2020036006A1 (fr) 2018-08-17 2020-02-20 Ｊｆｅスチール株式会社 Procédé de production d'une solution de traitement pour une utilisation dans la formation d'un film de revêtement isolant, procédé de production d'une feuille d'acier à laquelle est fixé un film de revêtement isolant, et appareil de production d'une solution de traitement pour une utilisation dans la formation d'un film de revêtement isolant
CN112567073B (zh) 2018-08-17 2022-05-27 杰富意钢铁株式会社 绝缘覆膜形成用处理液的制造方法和制造装置以及带有绝缘覆膜的钢板的制造方法
CN112771203B (zh) 2018-09-28 2023-10-17 杰富意钢铁株式会社 无铬绝缘被膜形成用处理剂、带绝缘被膜的方向性电磁钢板及其制造方法
EP3854891A4 (fr) 2018-09-28 2021-07-28 JFE Steel Corporation Procédé de production d'une tôle d'acier électromagnétique à grains orientés et équipement de laminage à froid
CN114555246B (zh) * 2019-10-31 2023-08-22 杰富意钢铁株式会社 覆膜形成方法和带有绝缘覆膜的电磁钢板的制造方法
WO2021084793A1 (fr) 2019-10-31 2021-05-06 Ｊｆｅスチール株式会社 Tôle d'acier électromagnétique comprenant un film de revêtement isolant
CN115916425A (zh) 2020-06-30 2023-04-04 杰富意钢铁株式会社 取向性电磁钢板的制造方法
EP4159337A1 (fr) 2020-06-30 2023-04-05 JFE Steel Corporation Procédé de fabrication d'une feuille d'acier électromagnétique à grains orientés et ligne d'équipement
WO2022004678A1 (fr) 2020-06-30 2022-01-06 Ｊｆｅスチール株式会社 Procédé de production de tôle d'acier électromagnétique à grains orientés et ligne d'équipement
US20230392223A1 (en) 2020-10-21 2023-12-07 Jfe Steel Corporation Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and method for evaluating grain-oriented electrical steel sheet
US20240052448A1 (en) 2021-01-28 2024-02-15 Jfe Steel Corporation Method of manufacturing grain-oriented electrical steel sheet and rolling apparatus for manufacturing electrical steel sheet
RU2765555C1 (ru) 2021-05-31 2022-02-01 Публичное Акционерное Общество "Новолипецкий металлургический комбинат" Электроизоляционное покрытие для электротехнической анизотропной стали, не содержащее в составе соединений хрома и обладающее высокими потребительскими характеристиками
WO2023277170A1 (fr) 2021-06-30 2023-01-05 Ｊｆｅスチール株式会社 Procédé de fabrication de tôle d'acier électromagnétique à grains orientés et équipement de laminage pour fabriquer une tôle d'acier électromagnétique à grains orientés
JPWO2023277169A1 (fr) 2021-06-30 2023-01-05
CN115851004B (zh) * 2021-09-24 2023-12-12 宝山钢铁股份有限公司 一种耐热刻痕型取向硅钢涂层用涂液、取向硅钢板及其制造方法
JPWO2023112421A1 (fr) 2021-12-14 2023-06-22
WO2024096761A1 (fr) 2022-10-31 2024-05-10 Public Joint-stock Company "Novolipetsk Steel" Composition de revêtement isolant électrique conférant des propriétés commerciales élevées à de l'acier électrique à grains orientés

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL66964C (fr) * 1946-04-03
US3138492A (en) * 1961-10-11 1964-06-23 Allegheny Ludlum Steel Insulating coating for magnetic steel
US3248249A (en) * 1963-06-28 1966-04-26 Telefiex Inc Inorganic coating and bonding composition
US3562011A (en) * 1968-04-26 1971-02-09 Gen Electric Insulating coating comprising an aqueous mixture of the reaction product of chromium nitrate and sodium chromate,phosphoric acid and colloidal silica and method of making the same
US3615918A (en) * 1969-03-28 1971-10-26 Armco Steel Corp Method of annealing with a magnesia separator containing a decomposable phosphate
BE789262A (fr) * 1971-09-27 1973-01-15 Nippon Steel Corp Procede de formation d'un film isolant sur un feuillard d'acierau silicium oriente

Also Published As

Publication number Publication date
NO139971B (no) 1979-03-05
DK546974A (fr) 1975-07-21
NO139971C (no) 1979-06-13
GB1482546A (en) 1977-08-10
SE7411670L (fr) 1975-05-20
JPS5079442A (fr) 1975-06-27
DE2450850B2 (de) 1977-08-18
BR7409439A (pt) 1976-05-18
US3985583A (en) 1976-10-12
JPS5652117B2 (fr) 1981-12-10
DK148692C (da) 1986-02-10
DE2450850A1 (de) 1975-05-22
BE821596A (fr) 1975-02-17
SE420109B (sv) 1981-09-14
FI57976B (fi) 1980-07-31
FR2251610A1 (fr) 1975-06-13
FI57976C (fi) 1980-11-10
DK148692B (da) 1985-09-02
IT1025703B (it) 1978-08-30
FI275074A (fr) 1975-05-18
FR2251610B1 (fr) 1979-03-16
DE2450850C3 (de) 1978-04-13
NO743362L (fr) 1975-06-16

Similar Documents

Publication Publication Date Title
CA1021672A (fr) Methode de deposition d'un revetement isolant sur une tole en acier oriente au silicone
CA986793A (en) Method for forming an insulating film on a grain oriented silicon steel sheet
CA1027511A (fr) Methode de revetement de l'aluminium ou des alliages d'aluminium
CA1009768A (en) Method for forming silicon conductive layers
GB1552345A (en) Methods for forming a heat-resistant coating on an oriented silicon steel sheet
CA928592A (en) Method of forming electric insulating coating on the surface of silicon steel sheet
CA1022810A (fr) Methode de preparation d'un revetement au silicate de lithium anti-buee et anti-reflechissement
CA996846A (en) Method of providing an aluminium coating on a steel substrate
CA958291A (en) Method for aluminum coating
CA1018875A (fr) Methode de deposition d'une pellicule de verre isolante a la surface de toles d'acier au silice oriente
CA1031290A (fr) Methode d'enduction de l'aluminium ou d'un alliage d'aluminium
CA967823A (en) Method of providing an object of silicon steel with a heat-resistant, electrically insulating coating
CA992231A (en) Varnish for varnishing electrical steel sheet
CA968648A (en) Method for surface coating
CA983324A (en) Seaming method for sheet metal ducts
CA1028580A (fr) Methode de deposition d'un revetement metallique
CA970258A (en) Method for coating aluminum while avoiding objectionable wastes
JPS5217343A (en) Process for forming oxide coating on steel products
AU471526B2 (en) A method for forming an insulating coating onan oriented silicon steel sheet
AU7473974A (en) A method for forming an insulating coating onan oriented silicon steel sheet
AU469858B2 (en) Method for coating surfaces
CA916573A (en) Reagent for forming an insulating coating on the surface of electrical steel sheets
CA1030824A (fr) Methode d'enduction d'un substrat avec des particules isolantes
CA988590A (fr) Methode pour formation de revetements protecteurs sur des electrodes de carbone
AU492704B2 (en) Method for forming a heat-resistant coating on an oriented silicon steel sheet