JPS5613485A - Preparation of nonanisotropic electromagnetic steel plate having superior iron loss - Google Patents

Preparation of nonanisotropic electromagnetic steel plate having superior iron loss

Info

Publication number
JPS5613485A
JPS5613485A JP8923979A JP8923979A JPS5613485A JP S5613485 A JPS5613485 A JP S5613485A JP 8923979 A JP8923979 A JP 8923979A JP 8923979 A JP8923979 A JP 8923979A JP S5613485 A JPS5613485 A JP S5613485A
Authority
JP
Japan
Prior art keywords
steel plate
aqueous solution
mixed
nonanisotropic
solution
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.)
Granted
Application number
JP8923979A
Other languages
Japanese (ja)
Other versions
JPS5810445B2 (en
Inventor
Toshiya Wada
Kiyoshi Ueno
Katsuro Kuroki
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.)
Nippon Steel Corp
Original Assignee
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP54089239A priority Critical patent/JPS5810445B2/en
Publication of JPS5613485A publication Critical patent/JPS5613485A/en
Publication of JPS5810445B2 publication Critical patent/JPS5810445B2/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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F3/00—Brightening metals by chemical means
    • C23F3/04—Heavy metals
    • C23F3/06—Heavy metals with acidic solutions

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)
  • ing And Chemical Polishing (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE:To make the formation of oxide layer difficult and to sharply improve the iron loss, by treating the surface after the last process and making the surface roughness at a specified value or less, on occasion of manufacturing the nonanisotropic electromagnetic steel plate from steel slab containing <=3.5% Si, and as occasion demands, containing Mn, Al, etc. CONSTITUTION:Steel slab having the above-mentioned composition, is hot-rolled by heating at 1,100-1,300 deg.C and 1.5-2.2mm. thickness slab is made. The last thickness is obtained by one cold rolling or two rollings including <=1,100 deg.C intermediate annealing after pickling. The last annealing of this steel plate is carried out also in order to obtain a magnetic characteristic and next, surface treatment is carried out. Methods, such as electrolytic polishing, chemical polishing, are used and chromium anhydride solution dissolved in phosphoric acid solution in supersaturated state, is used for former method and also, mixed solution mixed 5-10% hydrogen fluoride aqueous solution with hydrogen peroxide aqueous solution or mixed hydrogen peroxide aqueous solution with phosphoric acid in equivalent quantity, is used for the latter method. <=0.4 microns roughness is formed on the surface of the steel plate.
JP54089239A 1979-07-16 1979-07-16 Manufacturing method of non-oriented electrical steel sheet with excellent core loss Expired JPS5810445B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54089239A JPS5810445B2 (en) 1979-07-16 1979-07-16 Manufacturing method of non-oriented electrical steel sheet with excellent core loss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54089239A JPS5810445B2 (en) 1979-07-16 1979-07-16 Manufacturing method of non-oriented electrical steel sheet with excellent core loss

Publications (2)

Publication Number Publication Date
JPS5613485A true JPS5613485A (en) 1981-02-09
JPS5810445B2 JPS5810445B2 (en) 1983-02-25

Family

ID=13965184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54089239A Expired JPS5810445B2 (en) 1979-07-16 1979-07-16 Manufacturing method of non-oriented electrical steel sheet with excellent core loss

Country Status (1)

Country Link
JP (1) JPS5810445B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658925A (en) * 1979-10-15 1981-05-22 Nippon Steel Corp Production of nondirectional magnetic steel sheet
JP2007291491A (en) * 2006-03-28 2007-11-08 Jfe Steel Kk Nonoriented electromagnetic steel sheet

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3490048B2 (en) * 1999-08-30 2004-01-26 新日本製鐵株式会社 Manufacturing method of non-oriented electrical steel sheet
JP6587800B2 (en) * 2014-12-26 2019-10-09 Ｊｆｅスチール株式会社 Manufacturing method of laminated iron core

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4996920A (en) * 1973-01-22 1974-09-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4996920A (en) * 1973-01-22 1974-09-13

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658925A (en) * 1979-10-15 1981-05-22 Nippon Steel Corp Production of nondirectional magnetic steel sheet
JPS5810446B2 (en) * 1979-10-15 1983-02-25 新日本製鐵株式会社 Manufacturing method of non-oriented electrical steel sheet
JP2007291491A (en) * 2006-03-28 2007-11-08 Jfe Steel Kk Nonoriented electromagnetic steel sheet

Also Published As

Publication number Publication date
JPS5810445B2 (en) 1983-02-25

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