US3211443A - Metal holding receptacle - Google Patents

Metal holding receptacle Download PDF

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Publication number
US3211443A
US3211443A US187336A US18733662A US3211443A US 3211443 A US3211443 A US 3211443A US 187336 A US187336 A US 187336A US 18733662 A US18733662 A US 18733662A US 3211443 A US3211443 A US 3211443A
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US
United States
Prior art keywords
receptacle
course
disposed
aluminum
molten
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 - Lifetime
Application number
US187336A
Other languages
English (en)
Inventor
Bernard M Starner
Stanley C Jacobs
Jarrett Noel
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.)
Alcoa Corp
Original Assignee
Aluminum Company of America
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
Priority to NL291255D priority Critical patent/NL291255A/xx
Priority to NL130410D priority patent/NL130410C/xx
Application filed by Aluminum Company of America filed Critical Aluminum Company of America
Priority to US187336A priority patent/US3211443A/en
Priority to DE19631433829 priority patent/DE1433829A1/de
Priority to GB13832/63A priority patent/GB1019102A/en
Priority to CH443863A priority patent/CH418211A/de
Application granted granted Critical
Publication of US3211443A publication Critical patent/US3211443A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/0084—Obtaining aluminium melting and handling molten aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details specially adapted for crucible or pot furnaces
    • F27B14/10—Crucibles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details specially adapted for crucible or pot furnaces
    • F27B14/14—Arrangements of heating devices

Definitions

  • This invention relates to the handling of molten metal and it is particularly concerned with an improved construction of receptacles for holding molten aluminum and aluminum base alloys which minimizes heat loss through the walls thereof.
  • the objects of the present invention are directed to the construction of such types of receptacles that are particularly designed for the maintaining and holding of molten aluminum and aluminum base alloys under conditions where heat losses through the walls of the receptacles must be kept to a minimum and leakage and melt contamination are avoided.
  • FIGURE 1 is a side elevation of a receptacle incorporating the principles of this invention.
  • FIGURE 2 is a plan view of the receptacle shown in FIGURE 1 with the cover in place.
  • FIGURE 3 is another side elevation of the receptacle illustrated in FIGURE 1 showing the tapping spout.
  • FIGURE 4 is a plan View of the receptacle with the cover member removed therefrom.
  • FIGURE 5 is a vertical section as taken on line 5-5 of FIGURE 2 with the cover member illustrated as slightly separated from the base portion thereof.
  • FIGURE 6 is a section on the line 66 of FIGURE 4.
  • FIGURE 7 is a section on the line 77 of FIGURE 4.
  • FIGURE 8 is an enlarged section as taken on the line 88 of FIGURE 4.
  • FIGURES l to 4 clearly illustrate a suitable external configuration of a presently preferred construction incorporating the principles of this invention and particularly adapted for the holding of aluminum and its alloys under conditions where heat losses through the walls of the vessel are kept to a minimum.
  • the subject construction broadly includes a cylindrically shaped base portion, generally designated 10, adapted to contain a charge of molten metal, suitably aluminum and its alloys, provided with a tappable pouring spout 12 to efi'ect liquid metal removal therefrom and an associated 3,Zll,443 Patented Oct. 12, 1965 ICe slightly dome shaped removable cover member 14 having an axially located burner assembly, generally designated 16, mounted in the apex thereof.
  • the base portion 10 of the subject construction includes an externally disposed metal shell, suitably steel, and a multilayer multifunctional lining therefor arranged to achieve the objects set forth above.
  • the metal shell is desirably formed of a fiat horizontally disposed circular base plate 18 supported by a plurality of spaced parallel and chordally disposed I-beams 20, an angle iron 22 peripherally secured to the base plate 18, as by welding, and which, in turn, has its vertically disposed extending leg secured, as by welding, to the lower end of a vertically disposed cylindrically shaped side wall member 24.
  • the upper edge of the side wall member 24 has peripherally secured thereto an externally disposed angle iron 26, the extending leg 28 of which serves as an outwardly extending cover mem ber supporting flange and sealing surface.
  • an externally disposed angle iron 26 Disposed in uniformly spaced relation around the periphery of the upper end of the side wall member 24 and extending outwardly from the underside of the flange 28 are a plurality, suitably three in the illustrated embodiment, of cover member positioning bosses 30.
  • the cover member positioning bosses 30 are apertured to selectively receive complementally spaced cover member positioning pins 32 when said removable cover member 14 is properly positioned in vessel closing relationship on said body portion 10.
  • the body or molten metal containing portion 10 of the subject vessel is provided with a multilayer multifunctional lining for the maintaining and holding of aluminum and its alloys under conditions where heat loss through the walls thereof is held to a minimum and wherein leakage and contamination of the contained metal is minimized, if not actually avoided.
  • the lining generally includes a relatively thick outer portion or course of high temperature insulation material disposed in abutting relation with the base plate 18 and side wall plate 24. Extending over the entire inner face of the insulation course is a continuous compacted layer of granular refractory material of a character that is not wetted by or reactive with molten aluminum when in contact therewith.
  • Interiorly adjoining the layer of granular refractory material and serving to hold it in place is a facing course of a high temperature refractory material of a character that will not contaminate the molten metal with impurities.
  • Adjacent the top of the multilayer lining is an interiorly disposed channel for accommodating heating means to aid in minimizing any freezing on or near the surface of the body of molten metal being held in the vessel.
  • the relatively thick outer portion of the multilayer lining is preferably formed of suitable high temperature insulation blocks and includes a basal multilayer insulator lining supported by the upper surface of the base plate 18 and suitably formed of at least two layers or courses 34, 36 of closely abutting suitable high temperature block insulation.
  • a basal multilayer insulator lining supported by the upper surface of the base plate 18 and suitably formed of at least two layers or courses 34, 36 of closely abutting suitable high temperature block insulation.
  • a vertically disposed course 38 suitably formed of arcuately shaped high temperature block insulation of the type employed for the basal courses 34 and 36, suitably asbestos type material such as Carey Hi-Temp as manufactured by the Carey Mfg.
  • the peripherally disposed outer course 38 upwardly terminates a predetermined distance below the top of the shell side wall 24.
  • an intermediate continuous compacted sealing layer or course of granular material of a character that is not wetted by or reactive with molten aluminum when in contact therewith such as silicon carbide, calcium oxide, graphite or aluminum nitride, preferably ore grade alumina.
  • the vertically disposed cylindrical portion of the intermediate granular course 40 upwardly terminates at a location slightly below the upper portion of the outer course 38.
  • a basal multilayer course 44, 46 constituted by blocks of suitable high temperature refractory material which will not contaminate the molten metal with impurities, suitably a silicon nitride bonded silicon carbide refractory such as Refrax as manufactured by the Carborundum Co., and a peripheral course 48 of the same material.
  • the peripheral course 48 upwardly terminates at a location above the upper terminus of the outer insulation course 38 but below the top of the outer shell 24, suitably at a location intermediate thereof.
  • the base of the course 48 is supported by the periphery of the basal course 44.
  • the upper basal course 46 peripherally terminates a predetermined distance inwardly of the inner surface of the course 48 forming an annular recess 50 therebetween.
  • Such recess is filled and closed by an overlying cast in place annular triangularly shaped fillet 52 of a calcium aluminate bonded alumina refractory having a slope sufficient to assure thorough drainage of the receptacle defined by the above described construction.
  • heating means are incorporated around the top peripheral portion of the multilayer lining.
  • the preferred constructional details of a suitable arrangement thereof are best illustrated in FIGURES 6 and 7.
  • the upper termini of the vertically disposed courses 38 and 48 in conjunction with the cast annulus 42 and the outer shell 24 define an annular recess generally designatable 60.
  • an annular gas manifold 62 Disposed within this recess and adjacent the outer shell 24 is an annular gas manifold 62 having a plurality of inwardly directed and radially disposed burner pipes 64 connected thereto.
  • burner heads 66 which open into an annular chamber 68 defined in part by the annulus 42, the outer surface of the course 48 and the inwardly facing surface of a cast in place annulus 70 of a suitable insulating material such as a low density refractory silica brick such as Harbison-Walker No. 26 or a light weight silica castable, which surrounds the manifold 62 and burner pipes 64.
  • the annular chamber 63 is vented to the interior of the receptacle by means of a plurality of transverse radially disposed channels 72 positioned intermediate the burner heads and formed in the underside of an overlying insulation cap 74.
  • the insulation cap 74 is preferably formed by segmental blocks of cast calcium aluminate bonded alumina refractory and is sized and shaped to have its upper surface disposed coplanar with the top of the shell 24 and its bevelled inwardly directed edge 76 disposed in coplanar with the inner surface of the inner core 48.
  • the various blocks are preferably secured to each other and to the steel forming members with a suitable fibrous adhesive to both facilitate assembly thereof and to provide an essentially monolithic finished structure.
  • various liners may be used to preliminarily form the intermediate alumina layer 40 during assembly.
  • arcuately shaped block components are preferably employed in the illustrated cylindrical structure, conventional rectangularly shaped components may also be utilized. However, in the latter instance the resulting interstices between component elements and between the component elements and the external metal shell should be filled with crushed material of requisite character to eliminate all voids therein.
  • the described multilayer lining is of an essentially monolithic finished character arranged to provide a substantially leakproof structure that holds heat loss to a minimum and minimizes, if not actually avoids, contamination of the contained molten metal.
  • the subject construction also integrally provides for a contained heating means so arranged and located as to minimize any freezing of the surface of the body of molten metal being held in the vessel.
  • the subject receptacle includes a pouring spout assembly 12 for effecting the removal of molten metal therefrom.
  • a pouring spout assembly 12 for effecting the removal of molten metal therefrom.
  • Such assembly includes an internally disposed casting of a calcium aluminate bonded alumina refractory having a generally conically shaped inwardly flaring aperture 92 communicating with a tap hole 94 therein.
  • the inner surface of the casting 90 is disposed substantially flush with the inner surface of the inner lining course 48 and the lower surface of the aperture 92 is shaped to be coplanar with the upper surface of the basal course 46 at the point of juncture therewith and to slope downwardly therefrom to facilitate flow of molten metal from the receptacle.
  • the tap hole 94 communicates with a tap hole defining ring 96 formed of a high alumina molded refractory disposed within the terminus of a cast iron spout housing member 98 generally in the form of a truncated cone having a terminal flange 100 disposed coplanar with the outer shell 24.
  • the tap hole defining ring 96 is provided with a tap hole bore 102 coaxial with the tap hole 94 which in turn communicates with outwardly flaring conically shaped enlarged bore 104.
  • the outer terminus of the bore 104 merges into the bore 106 defined by the high alumina refractory liner 108 of the removable and preheatable cast iron spout member 110.
  • the spout member 110 is supported by the spout housing member 98 and positioned relative thereto by the introduction and maintenance of a plastic refractory material such as chromethermo-lith heat settable cement as manufactured by Harbison-Walker into all voids therebetween.
  • a plastic refractory material such as chromethermo-lith heat settable cement as manufactured by Harbison-Walker into all voids therebetween.
  • the casting 90 is sized to extend into abutting relationship with the intermediate granular course 40 and as such, effectively substitutes for the inner courses 44, 46 and 48 in its area of location.
  • FIGURES 1 to 3 and 5 illustrate a preferred construction for a removable cover member 14 for the heretofore described vessel.
  • a cover shell suitably of steel, including a cylindrical body portion 20% supporting an arcuately shaped roof 202.
  • the base of the body portion 200 is provided with an external peripheral flange 204 having suitable packing material 206 secured to its underside and positioned to engage the upper surface of the peripheral flange 28 on the body portion 20 when said cover member is positioned thereon.
  • the base of the body portion 200 of the cover member 14 is also provided with an annular inwardly directed lining retaining flange or shoulder 208 conveniently formed by the mounting of a circularly shaped angle iron on the interior surface thereof, such shoulder serving as a weight supporting surface when said cover is mounted on the receptacle.
  • a preferred multilayer lining includes a relatively thin, cast in place, first course 210 of a high silica refractory such as Kaolite #20 as manufactured by the Babcock & Wilcox Co. and an overlying thicker cast in place and dome shaped second course 212 of a calcium aluminate bonded alumina refractory, peripherally supported by the inwardly extending shoulder 208.
  • the cover member is also desirably provided with an axially located flat flame type gas burner assembly, generally designated 16, to furnish heat, when desired, by reflection and by radiation from the course 212 to the exposed upper surface of the metal contained within the covered vessel.
  • a plurality of vent pipes 214 extending through the cover member are also provided to permit the escape of the combustion gases resulting from the burner operation.
  • Manipulation of the cover member is facilitated by a plurality of lifting rings 216 mounted thereon.
  • An open top holding receptacle for temporary retention of charges of molten aluminum and aluminum base alloys having enclosure forming side walls and a bottom that serve to substantially reduce leakage of and loss of heat from a contained molten charge therethrough
  • An open top holding receptacle for temporary reten tion of charges of molten aluminum and aluminum base alloys having enclosure-forming cylindrically shaped side walls and a bottom that serve to substantially reduce leakage of and loss of heat from a contained molten charge therethrough
  • heating means includes a plurality of burner members disposed within an annulus located radially out wardly of said inner shell, said annulus formed in part by a channeled insulating cap covering said multilayer lining.
  • the holding receptacle as set forth in claim 1 including a removable cover member therefor having auxiliary means for applying heat to the surface of the charge in said receptacle included therein.
  • a holding receptacle for temporary retention of charges of molten aluminum and aluminum alloys having enclosure-forming walls and a bottom that serve to substantially reduce leakage of and loss of heat from a contained molten charge therethrough comprising an upwardly open cylindrically shaped metal receptacle-form ing shell having a horizontally disposed circular base portion and a cylindrically shaped vertical side wall portion, an outer self-supporting lining of high temperature insulating material disposed within said shell and in abutting relation with the base and side wall portions thereof, an inner self-supporting refractory lining layer having a horizontally disposed circular base portion and a cylindrically shaped side wall portion disposed in spaced relation with said first lining and presenting a substantially continuous non-contaminating charge confining surface, a sealing course disposed intermediate said outer and inner layers formed of a continuous compacted layer of granular material that will not be wetted by or reactive with said molten charge for preventing the passage therethrough of molten charge that has penetrated through said inner layer
  • the holding receptacle as set forth in claim 7 including a removable refractory lined cover therefor having auxiliary means for applying heat to the surface of the charge in said receptacle included therein.
  • the holding receptacle as set forth in claim 7 including heating means disposed interiorly adjacent the upper terminus of said multilayer lining for uniformly supplying heat adjacent the peripheral portions of the upper surface of the molten charge contained therein.
  • the holding receptacle as set forth in claim 7 including a pouring spout assembly for effecting removal of molten charge therefrom, said pouring spout assembly comprising a flanged truncated conical housing section secured to said forming shell and a preheatable spout member removably mounted with said housing section.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
US187336A 1962-04-13 1962-04-13 Metal holding receptacle Expired - Lifetime US3211443A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL291255D NL291255A (enrdf_load_stackoverflow) 1962-04-13
NL130410D NL130410C (enrdf_load_stackoverflow) 1962-04-13
US187336A US3211443A (en) 1962-04-13 1962-04-13 Metal holding receptacle
DE19631433829 DE1433829A1 (de) 1962-04-13 1963-04-02 Behaelter fuer geschmolzenes Metall
GB13832/63A GB1019102A (en) 1962-04-13 1963-04-08 Receptacle for containing molten metal
CH443863A CH418211A (de) 1962-04-13 1963-04-08 Behälter für geschmolzenes Metall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US187336A US3211443A (en) 1962-04-13 1962-04-13 Metal holding receptacle

Publications (1)

Publication Number Publication Date
US3211443A true US3211443A (en) 1965-10-12

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ID=22688561

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Application Number Title Priority Date Filing Date
US187336A Expired - Lifetime US3211443A (en) 1962-04-13 1962-04-13 Metal holding receptacle

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US (1) US3211443A (enrdf_load_stackoverflow)
CH (1) CH418211A (enrdf_load_stackoverflow)
DE (1) DE1433829A1 (enrdf_load_stackoverflow)
GB (1) GB1019102A (enrdf_load_stackoverflow)
NL (2) NL291255A (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3322417A (en) * 1965-05-24 1967-05-30 Mitchell John Damper system
US3341187A (en) * 1965-03-22 1967-09-12 United States Pipe Foundry Apparatus for handling molten metal
US3416781A (en) * 1964-01-06 1968-12-17 O H Warwick Company Furnace and apparatus for tilting same
US3871632A (en) * 1972-08-02 1975-03-18 Engineered Metal Prod Modular divisible barrel-shaped shell for metallurgical furnaces
FR2296485A1 (fr) * 1974-12-30 1976-07-30 Daussan Jean Revetement isolant calorifuge pour recipients metallurgiques, et recipients munis de ce revetement
US4208043A (en) * 1977-07-08 1980-06-17 Granges Weda Ab Holding vessel
US4221590A (en) * 1978-12-26 1980-09-09 Aluminum Company Of America Fractional crystallization process
US4367866A (en) * 1981-04-10 1983-01-11 Sunbeam Equipment Corporation Furnace adapted to contain molten metal
US4515353A (en) * 1983-03-24 1985-05-07 Sperry Corporation Tundish cover for ductile iron treatment
USD528573S1 (en) * 2005-03-14 2006-09-19 Hoei Shokai Co., Ltd. Container for storing molten metal
USD529058S1 (en) * 2005-03-14 2006-09-26 Hoei Shokai Co., Ltd. Container for storing molten metal
CN103256810A (zh) * 2013-05-20 2013-08-21 梁伙有 隧道式铝棒加热炉
CN103831425A (zh) * 2012-11-21 2014-06-04 天工爱和特钢有限公司 一种炼钢钢包保温盖
CN105149559A (zh) * 2015-10-08 2015-12-16 中冶南方工程技术有限公司 提高铁水储运能效的方法及装置
US9803925B2 (en) 2012-12-20 2017-10-31 Plansee Se Thermal shielding system
USD839327S1 (en) * 2015-10-26 2019-01-29 Hoei Shokai Co., Ltd Container for storing molten metal
USD926241S1 (en) * 2020-08-24 2021-07-27 Yewei LI Metal melting furnace
USD1039576S1 (en) * 2022-07-27 2024-08-20 Jianrong Wu Melting furnace

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5781945A (en) * 1980-11-10 1982-05-22 Aikoo Kk Container for molten metal
GB2108250B (en) * 1981-10-19 1985-01-09 Bhf Eng Ltd Forehearths

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2040787A (en) * 1931-05-18 1936-05-12 Nat Smelting Co Melting and holding furnace
US2119947A (en) * 1936-06-08 1938-06-07 Corning Glass Works Method and apparatus for treating glass
US2398546A (en) * 1944-11-06 1946-04-16 Phillips Petroleum Co Thermal insulation of vessels
US2451679A (en) * 1945-06-25 1948-10-19 Carnegie Illinois Steel Corp Furnace lining structure
US2525821A (en) * 1945-06-22 1950-10-17 Phillips Petroleum Co Insulation of thermal vessels
US2681943A (en) * 1950-09-21 1954-06-22 Aluminium Lab Ltd Furnace for treating material with corrosive gas
US2801839A (en) * 1953-10-01 1957-08-06 Electro Refractories & Abrasiv Crucibles for metal melting
US2962278A (en) * 1956-10-29 1960-11-29 Fischer Ag Georg Holding apparatus for molten metals
US2987391A (en) * 1957-11-22 1961-06-06 Kaiser Aluminium Chem Corp Method for melting and treating aluminum

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2040787A (en) * 1931-05-18 1936-05-12 Nat Smelting Co Melting and holding furnace
US2119947A (en) * 1936-06-08 1938-06-07 Corning Glass Works Method and apparatus for treating glass
US2398546A (en) * 1944-11-06 1946-04-16 Phillips Petroleum Co Thermal insulation of vessels
US2525821A (en) * 1945-06-22 1950-10-17 Phillips Petroleum Co Insulation of thermal vessels
US2451679A (en) * 1945-06-25 1948-10-19 Carnegie Illinois Steel Corp Furnace lining structure
US2681943A (en) * 1950-09-21 1954-06-22 Aluminium Lab Ltd Furnace for treating material with corrosive gas
US2801839A (en) * 1953-10-01 1957-08-06 Electro Refractories & Abrasiv Crucibles for metal melting
US2962278A (en) * 1956-10-29 1960-11-29 Fischer Ag Georg Holding apparatus for molten metals
US2987391A (en) * 1957-11-22 1961-06-06 Kaiser Aluminium Chem Corp Method for melting and treating aluminum

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416781A (en) * 1964-01-06 1968-12-17 O H Warwick Company Furnace and apparatus for tilting same
US3341187A (en) * 1965-03-22 1967-09-12 United States Pipe Foundry Apparatus for handling molten metal
US3322417A (en) * 1965-05-24 1967-05-30 Mitchell John Damper system
US3871632A (en) * 1972-08-02 1975-03-18 Engineered Metal Prod Modular divisible barrel-shaped shell for metallurgical furnaces
FR2296485A1 (fr) * 1974-12-30 1976-07-30 Daussan Jean Revetement isolant calorifuge pour recipients metallurgiques, et recipients munis de ce revetement
US4208043A (en) * 1977-07-08 1980-06-17 Granges Weda Ab Holding vessel
US4221590A (en) * 1978-12-26 1980-09-09 Aluminum Company Of America Fractional crystallization process
US4367866A (en) * 1981-04-10 1983-01-11 Sunbeam Equipment Corporation Furnace adapted to contain molten metal
US4515353A (en) * 1983-03-24 1985-05-07 Sperry Corporation Tundish cover for ductile iron treatment
USD528573S1 (en) * 2005-03-14 2006-09-19 Hoei Shokai Co., Ltd. Container for storing molten metal
USD529058S1 (en) * 2005-03-14 2006-09-26 Hoei Shokai Co., Ltd. Container for storing molten metal
CN103831425A (zh) * 2012-11-21 2014-06-04 天工爱和特钢有限公司 一种炼钢钢包保温盖
US9803925B2 (en) 2012-12-20 2017-10-31 Plansee Se Thermal shielding system
CN103256810A (zh) * 2013-05-20 2013-08-21 梁伙有 隧道式铝棒加热炉
CN103256810B (zh) * 2013-05-20 2014-12-10 梁伙有 隧道式铝棒加热炉
CN105149559A (zh) * 2015-10-08 2015-12-16 中冶南方工程技术有限公司 提高铁水储运能效的方法及装置
USD839327S1 (en) * 2015-10-26 2019-01-29 Hoei Shokai Co., Ltd Container for storing molten metal
USD926241S1 (en) * 2020-08-24 2021-07-27 Yewei LI Metal melting furnace
USD1039576S1 (en) * 2022-07-27 2024-08-20 Jianrong Wu Melting furnace

Also Published As

Publication number Publication date
CH418211A (de) 1966-07-31
NL291255A (enrdf_load_stackoverflow)
GB1019102A (en) 1966-02-02
DE1433829A1 (de) 1968-10-17
NL130410C (enrdf_load_stackoverflow)

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