FR2378729A1 - Covering powder for heat insulating metal melts - consisting of granules of silicate coated with slag - Google Patents

Covering powder for heat insulating metal melts - consisting of granules of silicate coated with slag

Info

Publication number
FR2378729A1
FR2378729A1 FR7702730A FR7702730A FR2378729A1 FR 2378729 A1 FR2378729 A1 FR 2378729A1 FR 7702730 A FR7702730 A FR 7702730A FR 7702730 A FR7702730 A FR 7702730A FR 2378729 A1 FR2378729 A1 FR 2378729A1
Authority
FR
France
Prior art keywords
granules
silicate
slag
powder
covering
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
FR7702730A
Other languages
French (fr)
Other versions
FR2378729B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7702730A priority Critical patent/FR2378729A1/en
Publication of FR2378729A1 publication Critical patent/FR2378729A1/en
Application granted granted Critical
Publication of FR2378729B1 publication Critical patent/FR2378729B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
    • C04B20/10—Coating or impregnating
    • C04B20/1055—Coating or impregnating with inorganic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/111—Treating the molten metal by using protecting powders
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

Heat insulating or exothermic powders for use as covering powders for molten metal in ladles, inject moulds for continuous casting etc. are prepd. in the form of granules of silicate coated with slag powder or covering powder by forming droplets of silicate, powdering the slag onto the droplets then drying the granules obtd. The granules pref. consist of 10-30 nesp 13-17)% silicate and 80-90 (esp. 83-27)% slag or covering powder. The silicate used is pref. a Na or K silicate with a ratio SiO2/Na2O or K2O of 3-4. The granules, being coarser than the fine powder used in prior art are not carried away in the hot air and gas above the molten metal as is fine powder.
FR7702730A 1977-02-01 1977-02-01 Covering powder for heat insulating metal melts - consisting of granules of silicate coated with slag Granted FR2378729A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7702730A FR2378729A1 (en) 1977-02-01 1977-02-01 Covering powder for heat insulating metal melts - consisting of granules of silicate coated with slag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7702730A FR2378729A1 (en) 1977-02-01 1977-02-01 Covering powder for heat insulating metal melts - consisting of granules of silicate coated with slag

Publications (2)

Publication Number Publication Date
FR2378729A1 true FR2378729A1 (en) 1978-08-25
FR2378729B1 FR2378729B1 (en) 1980-02-08

Family

ID=9186128

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7702730A Granted FR2378729A1 (en) 1977-02-01 1977-02-01 Covering powder for heat insulating metal melts - consisting of granules of silicate coated with slag

Country Status (1)

Country Link
FR (1) FR2378729A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471236A1 (en) * 1979-11-30 1981-06-19 Foseco Trading Ag Flux for continuous casting of steel - consists of refractory metal oxide, fluxing agent, and cellulosic material
CN114260434A (en) * 2021-12-31 2022-04-01 永兴特种材料科技股份有限公司 Automatic covering slag adding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471236A1 (en) * 1979-11-30 1981-06-19 Foseco Trading Ag Flux for continuous casting of steel - consists of refractory metal oxide, fluxing agent, and cellulosic material
CN114260434A (en) * 2021-12-31 2022-04-01 永兴特种材料科技股份有限公司 Automatic covering slag adding device

Also Published As

Publication number Publication date
FR2378729B1 (en) 1980-02-08

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Legal Events

Date Code Title Description
ST Notification of lapse