FR2062102A5 - Refractory block casting process - Google Patents

Refractory block casting process

Info

Publication number
FR2062102A5
FR2062102A5 FR6934715A FR6934715A FR2062102A5 FR 2062102 A5 FR2062102 A5 FR 2062102A5 FR 6934715 A FR6934715 A FR 6934715A FR 6934715 A FR6934715 A FR 6934715A FR 2062102 A5 FR2062102 A5 FR 2062102A5
Authority
FR
France
Prior art keywords
casting
mould
melt
refractory
solid
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
FR6934715A
Other languages
French (fr)
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.)
Societe Europeenne des Produits Refractaires SAS
Original Assignee
Electro Refractaire SA
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 Electro Refractaire SA filed Critical Electro Refractaire SA
Priority to FR6934715A priority Critical patent/FR2062102A5/en
Priority to GB4817970A priority patent/GB1325467A/en
Priority to CA095468A priority patent/CA930529A/en
Priority to US00079439A priority patent/US3763302A/en
Priority to DE2049681A priority patent/DE2049681C3/en
Priority to JP8958470A priority patent/JPS5333603B1/ja
Application granted granted Critical
Publication of FR2062102A5 publication Critical patent/FR2062102A5/en
Expired 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
    • 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
    • C04B35/05—Refractories by fusion casting
    • C04B35/051—Refractories by fusion casting containing chromium oxide or chrome ore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/54—Producing shaped prefabricated articles from the material specially adapted for producing articles from molten material, e.g. slag refractory ceramic materials
    • 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
    • C04B35/653—Processes involving a melting step
    • C04B35/657—Processes involving a melting step for manufacturing refractories

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

Casting of high temp. refractory blocks for furnace linings etc. is effected through a funnel on top of a water cooled collapsible metal mould. The melt has a compn. which gives off gases during solidification. During the casting operation a fixed proportion of broken up solid refractory of the same compn. as the melt is introduced into the casting jet and mixed with the melt. The addition of the solid is carried out as long as the mould proper is being filled up. The cast block is removed from the mould whilst still hot, when only the surface has solidified and subjected to a controlled rate cooling cycle outside the mould. The process is intended particularly for MgO refractory pieces containing some Cr2O3. Both the gas formation on solidification and addition of solid material even out the cooling of the block after casting and prevent the formation of a central pipe type core hole.
FR6934715A 1969-10-10 1969-10-10 Refractory block casting process Expired FR2062102A5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR6934715A FR2062102A5 (en) 1969-10-10 1969-10-10 Refractory block casting process
GB4817970A GB1325467A (en) 1969-10-10 1970-10-09 Moulded refractory bodies and their production
CA095468A CA930529A (en) 1969-10-10 1970-10-09 Refractory products cast one by one and process for making the same
US00079439A US3763302A (en) 1969-10-10 1970-10-09 Rapid fuse casting refractory shapes in liquid cooled metal molds
DE2049681A DE2049681C3 (en) 1969-10-10 1970-10-09 Process for the production of refractory castings
JP8958470A JPS5333603B1 (en) 1969-10-10 1970-10-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6934715A FR2062102A5 (en) 1969-10-10 1969-10-10 Refractory block casting process

Publications (1)

Publication Number Publication Date
FR2062102A5 true FR2062102A5 (en) 1971-06-25

Family

ID=9041331

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6934715A Expired FR2062102A5 (en) 1969-10-10 1969-10-10 Refractory block casting process

Country Status (1)

Country Link
FR (1) FR2062102A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507178A1 (en) * 1977-01-19 1982-12-10 Magyarovari Timfold Mukorundgy Cast refractories with very low porosity - obtd. using high velocity gas jet to inject molten metal oxide(s) into mould

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2507178A1 (en) * 1977-01-19 1982-12-10 Magyarovari Timfold Mukorundgy Cast refractories with very low porosity - obtd. using high velocity gas jet to inject molten metal oxide(s) into mould

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