GB1451235A - Temporary scale retardant coatings - Google Patents

Temporary scale retardant coatings

Info

Publication number
GB1451235A
GB1451235A GB4355573A GB4355573A GB1451235A GB 1451235 A GB1451235 A GB 1451235A GB 4355573 A GB4355573 A GB 4355573A GB 4355573 A GB4355573 A GB 4355573A GB 1451235 A GB1451235 A GB 1451235A
Authority
GB
United Kingdom
Prior art keywords
percent
solids
weight
coating
sept
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
GB4355573A
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.)
USS Engineers and Consultants Inc
Original Assignee
USS Engineers and Consultants Inc
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 USS Engineers and Consultants Inc filed Critical USS Engineers and Consultants Inc
Publication of GB1451235A publication Critical patent/GB1451235A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C24/00—Coating starting from inorganic powder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
    • Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paints Or Removers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Fireproofing Substances (AREA)

Abstract

1451235 Coating ferrous metals USS ENGS & CONSULTANTS INC 17 Sept 1973 [25 Sept 1972] 43555/73 Heading B2E [Also in Divisions C3 and C4] The formation of scale during heat treatment of ferrous articles at tempertures in excess of 2150‹F is retarded by the application of a protective refractory coating to at least one surface of the article by spraying a coating composition comprising from 40 to 70% by weight solids in a suitable vehicle, the solids comprising by weight 75 to 95 percent MgO, 2 to 10 percent B 2 O 3 in the form of anhydrous B 2 O 3 or of boric acid, 0 to 15 percent C and less than 2 percent SiO 2 , or the solids comprising by weight 65 to 80 percent MgO, 2 to 10 percent B 2 O 3 in the form of anhydrous B 2 O 3 or of boric acid, 11 to 17 percent TiO 2 0 to 15 percent C and less than 2 percent SiO 2 , the spraying being conducted to provide a coating thickness of from 0.04 to 0.25 gm/cm<SP>2</SP> of article surface.
GB4355573A 1972-09-25 1973-09-17 Temporary scale retardant coatings Expired GB1451235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00291849A US3827922A (en) 1972-09-25 1972-09-25 Method of retarding metal scale formation with carbon-containing mgo-b2o3 coatings

Publications (1)

Publication Number Publication Date
GB1451235A true GB1451235A (en) 1976-09-29

Family

ID=23122118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4355573A Expired GB1451235A (en) 1972-09-25 1973-09-17 Temporary scale retardant coatings

Country Status (9)

Country Link
US (1) US3827922A (en)
JP (1) JPS503931A (en)
BE (1) BE804948A (en)
CA (1) CA1006186A (en)
DE (1) DE2347728A1 (en)
FR (1) FR2200339B1 (en)
GB (1) GB1451235A (en)
IT (1) IT999582B (en)
PL (1) PL86828B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164665A (en) * 1984-09-24 1986-03-26 Honda Motor Co Ltd Spacers for use in brazing

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956028A (en) * 1972-09-25 1976-05-11 United States Steel Corporation Temporary scale retardant coatings
SE367844B (en) * 1972-10-26 1974-06-10 Asea Ab
US3959028A (en) * 1972-11-20 1976-05-25 The International Nickel Company, Inc. Process of working metals coated with a protective coating
JPS5226206B2 (en) * 1973-04-11 1977-07-13
US4511124A (en) * 1983-05-03 1985-04-16 Lone Star Steel Company Method and composition for fluidization of accumulated pit scrap in soaking pits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164665A (en) * 1984-09-24 1986-03-26 Honda Motor Co Ltd Spacers for use in brazing

Also Published As

Publication number Publication date
BE804948A (en) 1974-03-18
FR2200339B1 (en) 1978-11-10
DE2347728A1 (en) 1974-04-04
PL86828B1 (en) 1976-06-30
FR2200339A1 (en) 1974-04-19
CA1006186A (en) 1977-03-01
US3827922A (en) 1974-08-06
IT999582B (en) 1976-03-10
JPS503931A (en) 1975-01-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee