US1911189A - Metal coated refractory material and process of making the same - Google Patents

Metal coated refractory material and process of making the same Download PDF

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Publication number
US1911189A
US1911189A US453419A US45341930A US1911189A US 1911189 A US1911189 A US 1911189A US 453419 A US453419 A US 453419A US 45341930 A US45341930 A US 45341930A US 1911189 A US1911189 A US 1911189A
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refractory
same
refractory material
making
metal coated
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US453419A
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Henry H Harris
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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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • C04B35/565—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides based on silicon carbide

Definitions

  • This invention relates to refractory lining walls and bricks generally employed in heat treating furnaces.
  • the primary object of this invention is to provide a refractory brick havin high temperature resistance as 'well as fracture re sisting qualities.
  • Another object of this invention is to provide a refractory substance or compound of 1c the above mentioned character which may be formed in such a manner as to provide an open structure thereby forming a porous mass which is caused by the oxidatlon of one of the elements in the composition.
  • a still further object of this invention is to provide a refractory lining of the above mentioned character which is inexpensive in construction and adapted to resist the chemical action of gases, metals and slags.
  • the metal alloy forms a binder for the refractory material which may be the conventional clay refractory or carborundum.
  • Carborundum has known properties which are well adapted for use in connection with refractory material and for this reason it is well to employ carborundum to obtain the best results.
  • the mass is then formedv into bricks or the desired shape best adapted for the particular use which the refractory to 'material is to be employed.
  • the pressed forms or bricks are then subjected to a high heat causing oxidation of the metal alloys -which forms a porous mass, while the metal alloys are running through the filler. Only particles of the metal alloy are oxidizedas it is impossible for air to reach the most interior part of the form or brick.
  • the oxide formed in this manner has a higher heat resistance than the metal chrome or aluminum alloys and it also further acts as a binder to hold the mass together thereby preventing fracturing of the material.
  • a refractory brick or tile comprising a non-metallic refractory filling material incorporated with a heat resisting alloy, such as chrome or aluminum alloys, said alloy being at least in part oxidized, and roviding a' porous binder having heat and acture resisting qualities.
  • a heat resisting alloy such as chrome or aluminum alloys
  • roviding a' porous binder having heat and acture resisting qualities.
  • refractory brick or tile comprising a 6 mixture of subdivided non-meta11io refractory material, such as carborundum, and subdivided heat resisting alloyrinaterials, such as chrome or aluminum alIoys,' fused together, the fused mass containing the oxide of the alloy, and providing a porous binder having heat and fracture resisting qualities.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Description

Patented May 30, 1933 UNITED STATES HENRY H. HARRIS, OF DETROIT, MICHIGAN METAL COATED REFRACTORY MATERIAL AND PROCESS OF MING THE SAME No Drawing.
This inventionrelates to refractory lining walls and bricks generally employed in heat treating furnaces.
The primary object of this invention is to provide a refractory brick havin high temperature resistance as 'well as fracture re sisting qualities.
Another object of this invention is to provide a refractory substance or compound of 1c the above mentioned character which may be formed in such a manner as to provide an open structure thereby forming a porous mass which is caused by the oxidatlon of one of the elements in the composition.
A still further object of this invention is to provide a refractory lining of the above mentioned character which is inexpensive in construction and adapted to resist the chemical action of gases, metals and slags.
Other objects and advantages of this invention will appear during the course of description.
Heretofore it has been common practice to form refractory bricks by mixing silicates with coke and other granular material.
The disadvantages of the above type of refractory bricks are numerous, one of which is the cracking and fracturing most commonly caused, by variations in the furnace temperature and another cause is the chemical action of gases slags and metals thereon. i
The above disadvantages are overcome by the use of a filler such as carborundum mixed with an alloy metal such as chrome or aluminum alloy. It is well-known in the art that chrome alloys will allow a high temperature heat above 1700 and certain aluminum alloys range about the same or a little below.
The metal alloy forms a binder for the refractory material which may be the conventional clay refractory or carborundum. Carborundum has known properties which are well adapted for use in connection with refractory material and for this reason it is well to employ carborundum to obtain the best results.
In preparing my furnace lining, I prefer to employ carborundum for the filler as it Application filed May 17,
is manufactured in flake or finely divided form. To the filleris added fragments of metal alloys such as aluminum or chrome alloy metals which are also in a finely divided form for facilitating easy and even mixing of the filler and binder.
.After the two elements have been thoroughly commingled, the mass is then formedv into bricks or the desired shape best adapted for the particular use which the refractory to 'material is to be employed. The pressed forms or bricks are then subjected to a high heat causing oxidation of the metal alloys -which forms a porous mass, while the metal alloys are running through the filler. Only particles of the metal alloy are oxidizedas it is impossible for air to reach the most interior part of the form or brick.
The oxide formed in this manner has a higher heat resistance than the metal chrome or aluminum alloys and it also further acts as a binder to hold the mass together thereby preventing fracturing of the material.
It is to be understood that I do not wish to limit my disclosure to a carborundum filler or a chrome or aluminum alloy binder, asother alloys may be substituted with the filler and likewise other refractory fillers may be substituted with the alloy binder without departing from the spirit of the invention or the scope of the subjoined claims. It is also to be understood that this disclos ure is for the purpose of teaching the gist of my invention and that I do notwish to be restricted to exact proportions.
What I claim ,is: i
1. Process of making a strong refractory product comprising commingling refractory filling material such as carborundum in subdivided form with heat resisting alloy materials such as chrome and aluminum alloys also in subdivided form, pressing same into tiles or bricks, and applying high heat thereby causing oxidation of the metal and resultant added binding together of the particles.
2. A refractory brick or tile comprising a non-metallic refractory filling material incorporated with a heat resisting alloy, such as chrome or aluminum alloys, said alloy being at least in part oxidized, and roviding a' porous binder having heat and acture resisting qualities. 1 3. refractory brick or tile comprising a 6 mixture of subdivided non-meta11io refractory material, such as carborundum, and subdivided heat resisting alloyrinaterials, such as chrome or aluminum alIoys,' fused together, the fused mass containing the oxide of the alloy, and providing a porous binder having heat and fracture resisting qualities. In testimony whereof, I have signed my name hereto.
HENRY H. HARRIS.
US453419A 1930-05-17 1930-05-17 Metal coated refractory material and process of making the same Expired - Lifetime US1911189A (en)

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US453419A US1911189A (en) 1930-05-17 1930-05-17 Metal coated refractory material and process of making the same

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US453419A US1911189A (en) 1930-05-17 1930-05-17 Metal coated refractory material and process of making the same

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741822A (en) * 1951-01-29 1956-04-17 Carborundum Co Preparation of refractory products
US2753612A (en) * 1956-07-10 Process of forming magnesia refractory
US2838882A (en) * 1952-01-29 1958-06-17 Silverman Alexander Method of producing glass
US2982014A (en) * 1955-05-20 1961-05-02 Meyer-Hartwig Eberhard Process of manufacturing ceramic compounds and metallic ceramic compounds
US3244539A (en) * 1963-07-11 1966-04-05 Du Pont Bonded alumina refractory
US3244540A (en) * 1966-04-05 High alumina refractory bodies
US4561885A (en) * 1985-01-25 1985-12-31 Mcfarlane Norris B Production of refractory materials

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753612A (en) * 1956-07-10 Process of forming magnesia refractory
US3244540A (en) * 1966-04-05 High alumina refractory bodies
US2741822A (en) * 1951-01-29 1956-04-17 Carborundum Co Preparation of refractory products
US2838882A (en) * 1952-01-29 1958-06-17 Silverman Alexander Method of producing glass
US2982014A (en) * 1955-05-20 1961-05-02 Meyer-Hartwig Eberhard Process of manufacturing ceramic compounds and metallic ceramic compounds
US3244539A (en) * 1963-07-11 1966-04-05 Du Pont Bonded alumina refractory
US4561885A (en) * 1985-01-25 1985-12-31 Mcfarlane Norris B Production of refractory materials

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