GB610636A - Improvements in and relating to methods of insulating magnetic steel - Google Patents

Improvements in and relating to methods of insulating magnetic steel

Info

Publication number
GB610636A
GB610636A GB1126246A GB1126246A GB610636A GB 610636 A GB610636 A GB 610636A GB 1126246 A GB1126246 A GB 1126246A GB 1126246 A GB1126246 A GB 1126246A GB 610636 A GB610636 A GB 610636A
Authority
GB
United Kingdom
Prior art keywords
sol
relating
methods
gel
magnetic steel
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
GB1126246A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB1126246A priority Critical patent/GB610636A/en
Publication of GB610636A publication Critical patent/GB610636A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Paints Or Removers (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

Insulating coating compositions for steel or other magnetic materials are obtained by preparing an aqueous silica sol containing not less than 10 per cent of colloidal silica, adding an aliphatic alcohol to form a gel, then adding water until the gel is dissolved and a second sol obtained. Stirring is preferably maintained during the addition of the water. Specified alcohols are ethyl, propyl, isopropyl, butyl, isobutyl and amyl alcohol and mixtures of these may be used. Other compounds such as alumina, magnesium or aluminium silicate and bentonite may be present in the sol.
GB1126246A 1946-04-12 1946-04-12 Improvements in and relating to methods of insulating magnetic steel Expired GB610636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1126246A GB610636A (en) 1946-04-12 1946-04-12 Improvements in and relating to methods of insulating magnetic steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1126246A GB610636A (en) 1946-04-12 1946-04-12 Improvements in and relating to methods of insulating magnetic steel

Publications (1)

Publication Number Publication Date
GB610636A true GB610636A (en) 1948-10-19

Family

ID=9982981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1126246A Expired GB610636A (en) 1946-04-12 1946-04-12 Improvements in and relating to methods of insulating magnetic steel

Country Status (1)

Country Link
GB (1) GB610636A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3319847A1 (en) * 1983-06-01 1984-12-06 Ruhrgas Ag, 4300 Essen Process for producing laminated cores from unsiliconised grades for the field-carrying parts of electrical machines and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3319847A1 (en) * 1983-06-01 1984-12-06 Ruhrgas Ag, 4300 Essen Process for producing laminated cores from unsiliconised grades for the field-carrying parts of electrical machines and apparatus

Similar Documents

Publication Publication Date Title
SE7513029L (en) REGULATION OF THE BINDING TIME FOR MAGNESIUM OXIDE PHOSPHATE CEMENT
GB610636A (en) Improvements in and relating to methods of insulating magnetic steel
GB1435858A (en) Flux for brazing
GB714782A (en) Improvements in or relating to floor levelling compositions
GB618895A (en) Clarification of coal washery effluent
GB1082082A (en) Improvements in or relating to processes for producing insulating refractory compositions
GB720398A (en) Improvements in the manufacture of anti-corrosive priming paints
GB893290A (en) Improvements in and relating to coolants showing a reduced tendency to corrode metals
GB621740A (en) Improvements in or relating to cements containing a hydrolysable organo-silicon compound and refractory objects prepared therewith
GB629942A (en) Welding fluxes
GB976964A (en) Improvements in or relating to borate compositions
GB513366A (en) Improvements relating to the treatment of porous surfaces such as that of stone, and to compositions therefor
JPS56109812A (en) Silica alumina hydrate filler and its manufacture
GB945311A (en) Composition of matter
GB656388A (en) Method for producing 7-hydroxycholesterol by reduction of 7-ketocholesterol
GB898103A (en) Improved binding agent for refractory materials
GB443592A (en) Improvements in or relating to an acid and water proof cement
FR2108678A5 (en) Silica sol binder - from ethyl silicate and silica sol for binding refractory aggregates
GB767794A (en) Aqueous chlorine dioxide antiseptic compositions and production thereof
FR988514A (en) Medium for the stabilization of aqueous solutions of alumina silicates
GB615581A (en) Process of manufacturing silica gel
ES233978A1 (en) Procedure for the obtaining of a dry dry medium with anhydrid as a basis (Machine-translation by Google Translate, not legally binding)
GB685747A (en) Cyclohexen-(1)-yl-ethylamine and process for the manufacture thereof
GB577631A (en) Improvements in and relating to insulation for magnetic steel and the like
GB643700A (en) Purification of acetic anhydride