KR970008697B1 - Composition of castable refractories - Google Patents

Composition of castable refractories Download PDF

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Publication number
KR970008697B1
KR970008697B1 KR94035003A KR19940035003A KR970008697B1 KR 970008697 B1 KR970008697 B1 KR 970008697B1 KR 94035003 A KR94035003 A KR 94035003A KR 19940035003 A KR19940035003 A KR 19940035003A KR 970008697 B1 KR970008697 B1 KR 970008697B1
Authority
KR
South Korea
Prior art keywords
less
particle diameter
turndish
built
composition
Prior art date
Application number
KR94035003A
Other languages
Korean (ko)
Other versions
KR960022380A (en
Inventor
Sang-Wan Lee
Noh-Hyung Park
Original Assignee
Posco
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 Posco filed Critical Posco
Priority to KR94035003A priority Critical patent/KR970008697B1/en
Publication of KR960022380A publication Critical patent/KR960022380A/en
Application granted granted Critical
Publication of KR970008697B1 publication Critical patent/KR970008697B1/en

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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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/03—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/06—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on oxide mixtures derived from dolomite
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • C04B35/6316—Binders based on silicon compounds
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

The basic castable refractory composition according to the present invention is used as refractory for all kinds of steel manufacturing equipments such as turndish built-in, turndish dam and ladle built-in and is characterized in showing excellent effect producing a clean steel. The composition comprises 50-75 wt.% a dolomite clinker having a slaking-resistance where the rate of weight increase is less than 2.0 wt.% by autoclave examination method(3Kg/cm2, maintaining 2hours) and CaO content is 40-65 wt.%, 13-43 wt.% a magnesia clinker, 3-10 wt.% a chrome oxide powder having a particle diameter of less than 10 Pm, 2-6 wt.% a superfine powder having a particle diameter of less than 1 Pm, and a cement binding material of calciumsilicate type containing 3CaO,SiO2(Alite) of more than 65 wt.%. 20-40 % of the distribution ratio of the total particle size has a particle diameter of less than 0.075 mm.
KR94035003A 1994-12-19 1994-12-19 Composition of castable refractories KR970008697B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR94035003A KR970008697B1 (en) 1994-12-19 1994-12-19 Composition of castable refractories

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR94035003A KR970008697B1 (en) 1994-12-19 1994-12-19 Composition of castable refractories

Publications (2)

Publication Number Publication Date
KR960022380A KR960022380A (en) 1996-07-18
KR970008697B1 true KR970008697B1 (en) 1997-05-28

Family

ID=19402153

Family Applications (1)

Application Number Title Priority Date Filing Date
KR94035003A KR970008697B1 (en) 1994-12-19 1994-12-19 Composition of castable refractories

Country Status (1)

Country Link
KR (1) KR970008697B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100941407B1 (en) * 2007-12-28 2010-02-10 주식회사 포스코 Repairing Materials Composition

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010002615A (en) * 1999-06-16 2001-01-15 이구택 A filler for preventing clogging of laddel collect nozzle
KR100460256B1 (en) * 2001-10-31 2004-12-04 주식회사 인텍 Silica refractory composition for filler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100941407B1 (en) * 2007-12-28 2010-02-10 주식회사 포스코 Repairing Materials Composition

Also Published As

Publication number Publication date
KR960022380A (en) 1996-07-18

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