US3598173A - Continuous casting machine having a variable mold length and adapted for casting in a variety of sizes at high speed - Google Patents

Continuous casting machine having a variable mold length and adapted for casting in a variety of sizes at high speed Download PDF

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US3598173A
US3598173A US768354A US3598173DA US3598173A US 3598173 A US3598173 A US 3598173A US 768354 A US768354 A US 768354A US 3598173D A US3598173D A US 3598173DA US 3598173 A US3598173 A US 3598173A
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mold
casting
feed nozzle
cooling medium
lubricant
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James E Dore
William O Stauffer
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Olin Corp
Novelis Corp
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Olin Corp
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Assigned to ALCAN ALUMINUM CORPORATION reassignment ALCAN ALUMINUM CORPORATION MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE: 07/31/8 NORTHERN IRELAND Assignors: ALCAN ALUMINUM CORPORATION A CORP. OF NY (MERGED INTO), ALCAN PROPERTIES, INC., A CORP OF OHIO (CHANGED TO)
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    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
    • 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
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
    • B22D11/047—Means for joining tundish to mould
    • 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
    • B22D11/07—Lubricating the moulds
    • 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
    • B22D11/14—Plants for continuous casting
    • B22D11/144—Plants for continuous casting with a rotating mould

Definitions

  • a contin 0 ast' ch'n c 164/73 82 u c mg ma I e ompnsmg 268 273 282 means for holdmg a body of molten metal, a feed nozzle con- 8 nected to said means, a mold assembly including a mold I I I rotatable about the feed nozzle, means for moving the mold U SS m assembly back and forth upon the feed nozzle, and means for NIT forcing a lubricant through the nozzle to lubricate casting.
  • Zelgler CI al Means for a cooling medium to the mold and means 3,022,552 2/1962 Tessmann l64/258 for withdrawing the casting are additionally included.
  • Billet of small cross section can be made continuously on Properzi casting machines, as described, for example, in US. Pat. No. 2,7l0,433.
  • product availability from Properzi machines is limited and high quality product cannot be made in alloys such as 5356, 4043, 6061, and other industrial wire alloys.
  • a modified Tessman casting process as described, for example, in US. Pat. No. 2,837,791, can be used to continuously cast 2%-inch diameter rod in Electrical Conductive grade and 5005 alloys.
  • highly alloyed product cannot be cast with this process.
  • Billet of medium alloy content can be cast with the Ugine process, as described, for example in REVUE DE LALU- MINUM, Vol. 34 (1957) No. 244, p. 624-627, but the casting rates are low.
  • the cast billet must be large in cross section to reduce scrap losses during scalping and the cost of the finished product is about equal to that of the vertical DC casting process.
  • the mold length is preferably different during startup than duringthe rest of the casting operation.
  • the mold assembly can be moved to obtain the desired mold length for the given alloy, superheat and cooling condition while casting continues to obtain optimum surface quality.
  • FIG. 1 is a sectional view of a portion of the continuous casting apparatus of the present invention
  • FIG. 2 is a sectional view of a portion of the feed nozzle in cooperation with the mold of the present invention
  • FIG. 3 is a sectional view along the lines 3-3 in FIG. 2;
  • FIG. 4 is another embodimentof the feed nozzle in cooperation with the mold of the present invention.
  • FIG. 5 is a schematic view of a method of affixing fibers to the feed nozzle shell in FIG. 4;
  • FIG. 6 is a partial top view illustrating a portion of the apparatus shown in FIG. 1;
  • FIG. 7 is a perspective view of one mold structure according to the present invention.
  • FIG. 8 is a sectional view along the lines 8-8 in FIG. 7;
  • FIG. 9 is a side view of the ingot withdrawal mechanism and drive mechanism of the present invention.
  • FIG. 10 is a sectional view along the lines l0-l0 in FIG. 9;
  • FIG. 11 is a sectional view illustrating modifications of the present invention.
  • FIG. 12 is a sectional view along lines 12-12 in FIG. 11;
  • FIG. 13 is a schematic view of the conduit system used to regulate the amount of oil applied to lubricate the casting.
  • the casting machine of the present invention consists of the following basic parts.
  • a metal holding unit 10 such as, for instance, a feed box having an insulating lining 12 made of, for example, Marinite.
  • the feed nozzle insert 412 is placed in abutment with the holding unit 10, separated therefrom by gaskets 10a and 10b.
  • the feed nozzle is supported on an adjustable V-block 30 mounted on the bed ofthe machine.
  • the V-hlock has an upper portion 31 and a lower portion 32 with the upper and lower portions being held together'in a tight fit around the feed nozzle by means of bolts
  • the mold assembly 50 consists of a bearing block 51 which may be of one or two pieces, but a two-piece design is preferred because of ease of assembly and disassembly, a drive sprocket 58, and a mold 20.
  • Bolts 52 hold these parts in engagement.
  • rotational power is applied to a shaft S and to belt 59 to drive the mold assembly. This entire assembly is rotated about the feed nozzle 40 by means of the drive sprocket 58. No special lubrication is required for this rotation.
  • a conventional lubrication system can be provided to lubricate the rotating mold assembly, either separate from, or as a part of, the mold lubrication system, by providing appropriate passageways in feed nozzle 40.
  • the entire mold assembly is movable with respect to the feed nozzle by a lever 53 held in place by a nut 55.
  • Cam followers 56 are provided which will rotate if the mold assembly is moved forward or backward while the mold assembly is rotating. The mold may thus be held at a given distance from the V-block 30.
  • the effective mold length M decreases as the mold assembly is drawn nearer to the V-block 30-31 and is lengthened as the mold assembly is moved further from the V-block.
  • the oil to be introduced into the mold ofthe horizontal continuous casting machine of the present invention is fed from suitable reservoirs 1000 and 1001..
  • Compressed air is supplied through an air supply line 1003 having a pressure reducing valve 1004 therein.
  • the air supply line which is fitted with a pressure gage 1007 divides into two lines 1005 and 1006 which lead to the reservoirs.
  • Sight glasses 1008 and 1009 are provided. so that the oil level in reservoirs can be observed.
  • Each sight glass is also in communication with bleed valves 1010 and 1011 so that trapped air can be bled from the system. Oil can be drained from either oil reservoir through valves 1018, 1019, 1020 and 1021.
  • oil reservoir 1000 or 1001 can be shut down and refilled and the other utilized during the course of casting, thus assuring continuous operation.
  • the oil level can be read from either the sight glasses 1008 or 1009.
  • the pressure on the reservoirs can be varied through the use of reducing valve 1004.
  • either the valves 1018 or 1020, as desired, are used to shut off respectively the reservoirs 1000 and 1001.
  • Reducing valve 1004 controls the pressure applied to the oil reservoirs, which, in turn, controls the amount of oil delivered to the feed tube 14 or the feed nozzle 40.
  • the feed nozzle 40 is shown in detail, cooperation with mold member 20.
  • the oil to be introduced into the mold of the horizontal continuous casting machine of the present invention is housed in a suitable oil supply system previously described which is connected through appropriate couplings to the feed tube 14 shown in FIG. 1 and then into a capillary 402 made of any convenient material, such as stainless steel.
  • the capillary is placed in a longitudinal groove 401 in the feed nozzle shell 400 (FIG. 3) made of cast iron, such as meehanite. After insertion of the capillary, the remaining space in the groove is filled with molten solder, of a composition well known to those skilled in the art, for example, silver solder. Upon solidification, the solder 404 will hold the capillary in place. A a plurality of such capillaries may be provided, if desired. Two are shown in FIG. 1.
  • an O-ring seal 405 is placed in O- ring groove 406, so that the oil does not simply take the path of least resistance and run back out through the passageway 403 between the mold 20 and the feed nozzle shell 400 and out through the bearing block 50 to the atmosphere.
  • the feed nozzle shell 400 has a step 408. At the end of this step is placed a layer of felt, cotton yarn, or other fibrous material 409, such as Teflon felt.
  • the layer 409 together with the O- ring 405, step 408, and the mold 20 define a circular hollow chamber 407 which serves as an oil reservoir.
  • the feed nozzle tip 410 must have the following characteristics:
  • Marinite is a mixture of asbestos fiber bonded with a cementing agent.
  • the tip 410 is connected to the feed nozzle shell 400 by suitable means such as threads 411 so as to abut the feed nozzle insert 412 and the beveled end of the feed nozzle shell 400.
  • suitable means such as threads 411 so as to abut the feed nozzle insert 412 and the beveled end of the feed nozzle shell 400.
  • one or more gaskets 413, 414 are provided between the tip 410 and nozzle insert 412.
  • the tip 410 is designed so as to surround the feed nozzle shell 400 because it has been found that if the shell is exposed to the molten metal, the molten metal will solidify thereon, resulting in surface defects, such as tearing of the surface of the casting.
  • the clearance between the tip 410 and the mold 20 must be such that the lubricant will pass from the fibrous material 409 between the mold and the'nozzle and lubricate the mold, but small enough to prevent molten metal from entering this passageway.
  • the thickness may vary from one-half to five thousandths of an inch per side.
  • it has been found that the necessary clearance depends upon the head H in the feed box shown in FIG. 1. For example, with a metal head of 15 inches and a 0.005 inch gap per side, tearing was observed, but such tearing was not observed with the same gap and a metal head of 12 inches.
  • the fibrous material 409 is not always of uniform density throughout the entire circumference. Therefore, to the extent that there is a lack of uniformity in the fibrous material, there is a tendency for the oil to be unevenly distributed about the inside of a mold 20. This results in some material solidifying where there is too little oil, and in vapor formation where there is too much oil.
  • the mold is rotated, as previously mentioned. In this fashion, a given portion of the fibrous material is present only instantaneously at any given portion of the mold. This results in an oil distribution which is very uniform throughout the length and circumference of the mold.
  • FIG. 4 Another embodiment of the feed nozzle 40 is shown in FIG. 4.
  • the feed nozzle shell 400 again has a capillary 402 contained in a groove therein which also may be held in place by solder 404 as was the case in FIGS. 3 and 4.
  • solder 404 As was the case in FIGS. 3 and 4.
  • O-ring 405 placed in O-ring groove 406 in engagement with he mold 20.
  • the liquid reservoir 407 is defined by the step 408, the mold 20, the O-ring seal 405, and a flock F described below.
  • the feed nozzle shell 400 is shaped differently.
  • the tip thereof 409 is reduced in cross section to within the range of from about 0.002 inch. to 0.010 inch, and is preferably about 0.005 inch thick.
  • the flock F is made of short, chopped fibers of a material such as rayon or nylon, which are applied to the surface of the feed nozzle shell and are held thereon by a cement, for instance, epoxy cement.
  • the flock fibers are approximately one sixty-fourth inch to one-sixteenth inch long, and are applied perpendicularly to the surface of the feed nozzle shell as densely as possible.
  • This application can be carried out according to the schematic diagram shown in FIG. 5 wherein a plurality of such fibers F are placed upon the surface S.
  • the feed nozzle shell member M is fixed within the chamber C above the fibers F.
  • a high voltage source V is connected to both the member M and the surface S, which may be of the order of 20,000 volts. This results in the fibers F being deposited upon the feed nozzle shell member perpendicularly thereto.
  • the surface thereof Prior to insertion of the member M, the surface thereof has been coated with an appropriate cement, such as an epoxy cement, so that the fibers become affixed in perpendicular relationship to the surface of the feed nozzle shell member and are packed as densely as possible.
  • the Marininte member covers all of the meehanite except for the tip 409.
  • the flock F insures a steady flow of oil over the tip 409 and the tip will not come in contact with molten metal if the above tip thickness of 0.002 to 0.010 inch is maintained.
  • FIG. 1 illustrates one embodiment of the mold and cooling water application structure.
  • cooling water is introduced into the chamber 601 ofmold spray box 607 by means of conventional couplings 602 known to those skilled in the art. From the spray box, the cooling water passes through a circumferential baffle in the spray box containing a series of holes 603 into a second chamber 604.
  • a plate 605 is affixed to mold spray box 607 by means of fasteners 606. However, it is to be noted that there is a step 608 on the plate 605 resulting in clearance of from 13 to 50 thousandths of an inch, preferably 15 to 25 thousandths, between the plate and the lower portion of the spray box 607.
  • the cooling water passes in a continuous sheet from chamber 604 between the plate 605 and the spray box 607 contacts first the mold plate 103 and then the mold 20. It then follows the mold contour and exits from the billet surface at 105 at an angle of from 3 to 20 to the surface of the casting. An angle of 3 to between the cooling water and the casting at the point of contact is preferred for most applications.
  • the mold shown in FIG. 6 is shown in enlarged views in FIGS. 7 and 8.
  • the mold may be made of any of the following materials: deoxidized copper, aluminum, copper with a graphite insert, or deoxidized copper containing 1.3 percent chromium.
  • the mold 20 comprises a continuous concave surface 201 or curved surface which may take the form of the arc of a circle, a segment of a parabola or a segment of an hyperbola. This provides maximum heat removal from the mold by minimizing the thickness of the stagnant bounding layer of coolant in contact with the surfaces of the mold and delivers coolant to bar surface at the proper angle, as previously specified.
  • FIG. 7 the mold 20 comprises a continuous concave surface 201 or curved surface which may take the form of the arc of a circle, a segment of a parabola or a segment of an hyperbola. This provides maximum heat removal from the mold by minimizing the thickness of the stagnant bounding layer of coolant in contact with the surfaces of the mold and delivers coolant
  • a plurality of helical grooves 202 are provided which are cut 0.001 to 0.003 inches deep into the internal surface of the mold for a considerable distance, such as l to 2 inches from the discharge end.
  • the grooves may be made using a 30 knurl with a 33 pitch right-hand diameter knurling wheel.
  • the direction of the helix is in the direction of mold rotation.
  • a mechanical wiper 710 This wiper includes one or more gaskets 711. I5the case of ZA-inch diameter cast bar, 2-inch size gaskets are used to provide effective wiping action and good contact with the casting 3. These gaskets are mounted in a holder 712 which, in turn, is held in the wiper housing 713 with conventional fasteners such as nut-and-bolt arrangement 714.
  • the air wiper 720 Adjacent the mechanical wiper 710 is an air wiper 720.
  • the air wiper 720 comprises a header section 721 which surrounds the casting circumferentially and a plurality of nozzles 720 through which the air passes at an angle of 30 to 60, preferably 45, with respect to a plane passing through the header.
  • the size of the nozzles may be a slot orifice of 0.045 inches.
  • the number of orifices 722 may vary, for example, from 3 to 20, but it is preferred to have from 6 to 8 orifices.
  • An air pressure of, for example 100 p.s.i. is applied through a suitable conduit 723 from a pump, not shown.
  • the purposes of the air wiper is to remove any water from the surface of the bar that gets by the mechanical wipers.
  • Additional cooling may be provided if desired and, in fact, is necessary in the casting of certain stress sensitive alloys.
  • Such additional cooling may be provided at a secondary cooling station 730.
  • the secondary cooling station is simple in construction. There is provided a housing or header 731 into which a cooling medium, for example, water, is introduced through conduit 732.
  • a plurality of drilled holes 733 are provided which are quite close to the casting. The angle between the surface of the casting and the drilled holes 733 may be from to 45, preferably 30. The number of such holes should be between 15 and 45, preferably to 30.
  • the diameter of such holes must be from one-sixteenth inch to live thirty-seconds inch, for example, 3/32-inch diameter may be used.
  • the water may be applied at a rate of 10 to 100 gallons per minute, de-
  • the secondary cooling water may be removed with additional wipers such as shown at 740, held in place with support 741 and fasteners 742. If desired, an additional air wiper such as shown at 720 may also be provided. Also, if desired, the mechanical wipers and/or air wiper may be replaced with a water wiper which directs a continuous sheet of water up the bar in a direction opposite to the direction of bar travel. The sheet of water issuing from the water wiper should make an angle of between 15 and 45 with the bar surface. The flow rate of water issuing from the water wiper is determined by the amount of water being applied to the surface of the bar by the secondary cooling station. Water flow from the wiper is adjusted so that no water exits the splash chamber or encloses down the bar.
  • the casting passes to an ingot withdrawal mechanism 900.
  • the ingot withdrawal mechanism 900 is driven from a motor 910, which, by means of belt 911 and gear reducers 912, 913, and 914, drives a sprocket 915.
  • a motor 910 which, by means of belt 911 and gear reducers 912, 913, and 914, drives a sprocket 915.
  • the gear box 914 the power is divided by known gearing, part going to the sprocket 915 and part continuing to another gear box 917.
  • the sprocket 915 drives a chain 916 which, in turn, drives wheel 920.
  • the rotational rate is further reduced and drives shaft S.
  • the shaft S transmits the power to belt 59 which rotates the mold assembly.
  • the wheel 920 driven by the chain 916, contains a plurality of grooves 921 into which the wheels 931 fit.
  • the chain 901 is made up of a plurality of feet 930.
  • Tl-Ie feet 930 comprise a V-member 933 upon which the casting 3 rides.
  • the V-member has flat faces which converge in an inverted apex 935.
  • the V-member has a groove 936 in its bottom surface.
  • a guide bar 940 is provided and the V-members ride along the guide bar 940 as they carry the casting 3.
  • the wheels 93] are affixed to the V-member by means of lugs 937 which are welded onto the V-members. Of course, other types of fastening could be utilized, if desired.
  • the chain of feet also rides on an idler wheel 922 prior to engaging the casting.
  • the withdrawal mechanism also includes a device 950 to hold the casting in place and in engagement with the feet 930.
  • This device comprises wheels 951 and 952 having axles 953 and 954.
  • An air cylinder not shown, exerts a force on drive member 956 which exerts this force midway between the wheels on a bar 955 which distributes the force equally between the wheels.
  • the amount of pneumatic pressure to be applied can be varied by varying the amount of pressure applied to the air cylinder.
  • the withdrawal mechanism After the casting leaves the withdrawal mechanism. it may be placed upon a series of roller bars 960 for support and then to a cutting device or saw of conventional construction, not shown.
  • FIG. 11 Another embodiment of the invention is shown in FIG. 11. Much of the embodiment shown in FIG. 10 is essentially the same as that shown in FIG. 1. I
  • molten metal to be cast is held in a feed box 10 having appropriate insulating lining 12, for example, made of Marinite. Additional molten metal is added continuously through a transfer trough 1 in communication with a furnace or large reservoir of molten alloy.
  • V-block 30 having an upper and lower portion 31 and 32, the two sections being held in engagement by means of bolts 33.
  • Feed tube 14 is provided for the introduction of lubricating oil into capillary 402.
  • a mold sprocket 58 and belt 59 are provided to rotate the mold assembly 50 which is held together by means of bolts 52.
  • the mold assembly 50 can be moved back and forth on the feed nozzle 40 and tip 410 by means ofa lever, such as 53 shown in FIG. 6 to vary the mold length M.
  • Cam followers 56 avoid friction during movement of the assembly back and forth while the assembly is rotating.
  • Cooling water is supplied to the mold 20 by introduction of the cooling water into spray box 111.
  • the spray box directs the cooling medium in a direction parallel to the movement of the casting but in an opposite direction to the casting movement.
  • the mold surface 21 then turns the cooling fluid and directs it onto the casting 3 at an angle from 3 to 20 to the surface of the casting, preferably 3 to 10.
  • the cooling water is shown introduced in a direction parallel but opposite to the direction of travel of the mold.
  • the cooling water in introduced perpendicular to the direction of travel of the mold.
  • the cooling water may be introduced at any convenient angle with respect to the movement of the casting, so long as the mold contour is such as to direct the cooling water to contact the castings as it emerges from the mold at an angle from 3 to to the surface of the casting, preferably 3 to 10.
  • header 141 and superquench nozzles 142 (US. Pat. No. 3,323,577) which are placed within cooling chamber 13.
  • means for wiping the casting may be provided at 15, for instance, rubber wipers 151 may be provided affixed into holders 152 by conventional fasteners.
  • An additional rubber wiper 16 may be provided as the casting exits from chamber 13.
  • the ingot withdrawal mechanism 60 comprises a plurality of feet 61 connected by a plurality of links 631.
  • a V-member 63 has two inclining faces which support the casting.
  • the V-member is welded to base member 64.
  • the bolts 68 hold the base 64 in engagement with the links 631.
  • a roller bearing 69 is free to rotate about the pins 632 and per mit the links to bend as they pass around idler wheel 62.
  • the drive mechanism for the withdrawal mechanism is similar to that shown in FIG. 9.
  • the drive sprocket which imparts the motion to the chain 61 may be of the simple bicycle sprocket type (not shown) with teeth thereon which engage the feet 61.
  • This type of sprocket-and-chain arrangement is conventional and forms no part of the present invention, ex cept insofar as it is in combination with the feet 61 and other casting apparatus ofthe present invention.
  • ultrasonic testing equipment shown schematically at 980, known in the art, may be used in testing the soundness of the casting after the casting has been removed from the mold, coolant removal section, and secondary cooling removal section.
  • Such testing of the soundness of metallurgical products, such as bar stock, is known in the art and forms no part of the present invention, except insofar as it is combined with the casting process and apparatus of the present invention.
  • a horizontal casting feed nozzle adapted to be used in conjunction with a horizontal casting mold utilized in making a continuous casting comprising:
  • a capillary communicating with said step for carrying a lubricant thereto;
  • a tip attached to the end portion of said nozzle body. said tip hciug uouwctting to molten aluminum;
  • a feed nozzle according to claim 1 in which the means for regulating the flow of lubricant over said tip is a layer of fibrous material.
  • a feed nozzle according to claim 2 in which the fibrous material is a plurality of short, chopped fibers and said fibers being substantially perpendicular to the surface of said nozzle body.
  • a feed nozzle according to claim 1 in which said tip completely covers the end portion of said nozzle body.
  • a feed nozzle according to claim 1 in which means for sealing said feed nozzle with respect to said mold are provided which insure that said lubricant will pass over said tip.
  • a casting mold utilized in making a continuous casting comprising:
  • a member having a concave outer surface and having an opening of constant diameter therethrough defining an inner surface; said member further having a plurality of helical grooves extending along the inner surface thereof for passage of a lubricant through said grooves to lubricate said casting.
  • a mold according to claim 8 which is made of a material selected from the group consisting of deoxidized copper, aluminum and aluminum alloys, copper having a graphite insert, and deoxidized copper containing up to 1.3 percent chromium.
  • a mold according to claim 9 which is made of deoxidized copper containing up to 1.3 percent chromium.
  • An apparatus utilized in making a continuous casting comprising:
  • a mold assembly including a mold wherein at least a portion of the outer surface of said mold is concave and having an opening of constant diameter therethrough defining an inner surface, wherein said concave surface is contiguous with the end of said opening from which said casting emerges and wherein the diameter of said concave surface increases from said end portion, and a plurality of helical grooves extending along the inner surface of said mold for passage ofa lubricant to lubricate said casting; a feed nozzle communicating with said mold, said mold being rotatable about said feed nozzle, and
  • the means for applying a cooling medium comprises a spray box having a circumferential baffle, said baffle having a plurality of openings therein.
  • a casting machine utilized in making a continuous casting comprising:
  • a feed nozzle connected to the means for holding said body of molten metal
  • said feed nozzle having a nozzle body having a step therein, a capillary communicating with said step for carrying a lubricant, a tip attached to the end portion of said nozzle body, means for introducing a lubricant to flow through said capillary, and means communicating with said step for regulating the amount of lubricant which passes over said tip to lubricate the casting;
  • a mold assembly rotatable about said feed nozzle said mold assembly including a mold for horizontal casting; means for moving the mold assembly back and forth upon said feed nozzle;
  • An apparatus according to claim 21 including means for removing the cooling medium from said casting.
  • An apparatus utilized in making a continuous casting comprising:
  • a withdrawal mechanism for withdrawing said casting comprising: an endless chain made up of a plurality of feet, each of said feet having a carrying member having a concave surface upon which said casting is carried, said carrying member having means for moving along the base having a flat surface; and means for moving said endless chain into engagement with said casting and out of engagement with said casting after said casting has been moved away from said casting mold.
  • An apparatus according to claim 26 including means associated with the base for guiding said chain as it moves along said base.
  • An apparatus according to claim 26 in which the means for urging said endless chain into engagement with said casting comprises at least one drive sprocket wheel.
  • a mold according to claim 8 in which a mold coolant exits from said externally concave outer surface at an angle of 3 to 20 to the surface of the casting.
  • a mold assembly for a continuous casting machine for making a continuous casting comprising:
  • a mold assembly according to claim 46 further including a bearing block affixed to said mold said bearing block being adapted to rotate about said feed nozzle; and means for rotating said mold and bearing block about said feed nozzle.
  • a mold assembly as in claim 47 wherein said means for rotating the mold and bearing block include: a drive sprocket which is allixed to said bearing block; and wherein said means for moving the mold back and forth upon said feed nozzle includes a groove in said bearing block and cam followers engaging said groove, said cam followers being free to rotate so that the mold may be moved back and forth while the mold is rotating about said feed nozzle.
  • a mold assembly according to claim 48 further including a mold ring which engages, and is rotatable with, said mold.
  • An apparatus as in claim 14 further including means for removing said first cooling medium from said casting.
  • An apparatus as in claim 50 wherein said means for removing said first cooling medium comprises: at least one rubber wiper adapted to contact the periphery of the casting,
  • said wiper being held in position by at least one holder, means for supporting said holder so that said wiper can engage the periphery of said casting.
  • An apparatus as in claim 51 further including a concentric tube having a plurality of orifices and means for introducing a gas under pressure into said tube whereby said gas exits from said orifices to remove said first cooling medium not removed by said wiper.
  • An apparatus as in claim 51 further including means for applying a second cooling medium to said casting.
  • said means for applying said second cooling medium to said casting comprises: a header; means for introducing a cooling medium into said header; said header having a plurality of openings therein for applying said second cooling medium to said casting.
  • An apparatus as in claim 55 further including means for removing said second cooling medium from said casting.
  • An apparatus as in claim 58 wherein said means for removing said second cooling medium comprises at least one rubber wiper contacting the periphery of said casting, said wiper being held in position by at least one holder; and means for supporting said holder so that said wiper can engage the periphery of said casting.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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  • Wire Processing (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
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  • Connection Of Plates (AREA)
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  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
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US768354A 1968-10-17 1968-10-17 Continuous casting machine having a variable mold length and adapted for casting in a variety of sizes at high speed Expired - Lifetime US3598173A (en)

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US76835468A 1968-10-17 1968-10-17

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US768354A Expired - Lifetime US3598173A (en) 1968-10-17 1968-10-17 Continuous casting machine having a variable mold length and adapted for casting in a variety of sizes at high speed

Country Status (7)

Country Link
US (1) US3598173A (de)
CH (4) CH558222A (de)
DE (1) DE1939512C3 (de)
FR (1) FR2020944B1 (de)
GB (2) GB1278797A (de)
NO (4) NO132526C (de)
SE (2) SE362594B (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3693701A (en) * 1970-01-09 1972-09-26 Voest Ag Continuous casting plant for continuously casting hot liquid metals
US3731728A (en) * 1971-09-27 1973-05-08 Gen Motors Corp Mold apparatus for continuous casting
US3763921A (en) * 1971-03-24 1973-10-09 Dow Chemical Co Direct chill casting method
US3770046A (en) * 1968-10-17 1973-11-06 Olin Corp Apparatus for cooling a stress sensitive continuous casting
US4031948A (en) * 1974-06-15 1977-06-28 Von Roll Ag Mold-equipped casting oven unit for continuous rod castings
US4502526A (en) * 1982-08-23 1985-03-05 Fried. Krupp Gesellschaft mit beschr/a/ nkter Haftung Seal for a continuous steel caster
WO1987001632A1 (en) * 1985-09-13 1987-03-26 Erik Olsson Ag Method and apparatus for continuous casting
US6491087B1 (en) 2000-05-15 2002-12-10 Ravindra V. Tilak Direct chill casting mold system
US6622774B2 (en) 2001-12-06 2003-09-23 Hamilton Sundstrand Corporation Rapid solidification investment casting
US20050126741A1 (en) * 2003-12-11 2005-06-16 Bowles Wade L. Apparatus and method for horizontal casting and cutting of metal billets
US20110259773A1 (en) * 2008-12-30 2011-10-27 Yuanwen Chen Special container for mobile extrusion equipment
CN104827006A (zh) * 2015-04-22 2015-08-12 河南科技大学 一种大口径锻态铜管水平连铸连挤压设备及铜管生产工艺
CN112517849A (zh) * 2020-12-03 2021-03-19 曾宇 一种高强度钢材铸造成型模具

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183105A (en) * 1977-11-03 1980-01-15 Womack Leo K Self-cleaning toilet
DE3029223C2 (de) * 1980-08-01 1984-09-27 Fried. Krupp Gmbh, 4300 Essen Einlauf für die Metallschmelze in Stranggießvorrichtungen
DE3325716C2 (de) * 1983-07-16 1985-08-14 Fried. Krupp Gmbh, 4300 Essen Gießdüsen-Mundstück für Stahlschmelze verarbeitende Stranggießkokillen mit in Gießrichtung mitlaufenden Kokillenwänden

Citations (13)

* Cited by examiner, † Cited by third party
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US1088171A (en) * 1913-01-30 1914-02-24 Adam Helmer Pehrson Manufacture of bar and tube shaped articles from molten metal.
US1139888A (en) * 1915-02-02 1915-05-18 Continuous Casting Corp Automatic metal-feed for continuous casting-machines.
US2316144A (en) * 1941-08-30 1943-04-06 Remington Arms Co Inc Formation of metal shapes
GB588618A (en) * 1944-10-05 1947-05-29 Harold Andrews Method of and means for continuous casting of solid or hollow sections in ferrous metals
US2515284A (en) * 1947-12-26 1950-07-18 Kaiser Aluminium Chem Corp Differential cooling in casting metals
US2799068A (en) * 1953-09-03 1957-07-16 Kaiser Aluminium Chem Corp Method of casting metals
US2871529A (en) * 1954-09-07 1959-02-03 Kaiser Aluminium Chem Corp Apparatus for casting of metal
US3022552A (en) * 1959-08-24 1962-02-27 Alfred H Tessmann Continuous casting apparatus
US3040396A (en) * 1957-05-06 1962-06-26 Armco Steel Corp Apparatus and method for the direct casting of metal
US3349837A (en) * 1965-07-19 1967-10-31 Aluminum Co Of America Continuous casting apparatus with means supporting only outer portions of non-uniformingot
US3390716A (en) * 1964-11-27 1968-07-02 Deutsche Edelstahlwerke Ag Pouring spout and pouring head for the continuous casting of high melting metals, particularly steel
US3439730A (en) * 1965-07-24 1969-04-22 Vaw Ver Aluminium Werke Ag Method and apparatus for continuous casting of metal in horizontal direction,especially for continuous casting of thin metal bands,plates or the like
US3556197A (en) * 1968-02-05 1971-01-19 Kaiser Aluminium Chem Corp Apparatus for lubricating a molten metal mold

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1094517A (fr) * 1953-11-25 1955-05-20 Installation de coulée pour métaux en fusion

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1088171A (en) * 1913-01-30 1914-02-24 Adam Helmer Pehrson Manufacture of bar and tube shaped articles from molten metal.
US1139888A (en) * 1915-02-02 1915-05-18 Continuous Casting Corp Automatic metal-feed for continuous casting-machines.
US2316144A (en) * 1941-08-30 1943-04-06 Remington Arms Co Inc Formation of metal shapes
GB588618A (en) * 1944-10-05 1947-05-29 Harold Andrews Method of and means for continuous casting of solid or hollow sections in ferrous metals
US2515284A (en) * 1947-12-26 1950-07-18 Kaiser Aluminium Chem Corp Differential cooling in casting metals
US2799068A (en) * 1953-09-03 1957-07-16 Kaiser Aluminium Chem Corp Method of casting metals
US2871529A (en) * 1954-09-07 1959-02-03 Kaiser Aluminium Chem Corp Apparatus for casting of metal
US3040396A (en) * 1957-05-06 1962-06-26 Armco Steel Corp Apparatus and method for the direct casting of metal
US3022552A (en) * 1959-08-24 1962-02-27 Alfred H Tessmann Continuous casting apparatus
US3390716A (en) * 1964-11-27 1968-07-02 Deutsche Edelstahlwerke Ag Pouring spout and pouring head for the continuous casting of high melting metals, particularly steel
US3349837A (en) * 1965-07-19 1967-10-31 Aluminum Co Of America Continuous casting apparatus with means supporting only outer portions of non-uniformingot
US3439730A (en) * 1965-07-24 1969-04-22 Vaw Ver Aluminium Werke Ag Method and apparatus for continuous casting of metal in horizontal direction,especially for continuous casting of thin metal bands,plates or the like
US3556197A (en) * 1968-02-05 1971-01-19 Kaiser Aluminium Chem Corp Apparatus for lubricating a molten metal mold

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3770046A (en) * 1968-10-17 1973-11-06 Olin Corp Apparatus for cooling a stress sensitive continuous casting
US3693701A (en) * 1970-01-09 1972-09-26 Voest Ag Continuous casting plant for continuously casting hot liquid metals
US3763921A (en) * 1971-03-24 1973-10-09 Dow Chemical Co Direct chill casting method
US3731728A (en) * 1971-09-27 1973-05-08 Gen Motors Corp Mold apparatus for continuous casting
US4031948A (en) * 1974-06-15 1977-06-28 Von Roll Ag Mold-equipped casting oven unit for continuous rod castings
US4502526A (en) * 1982-08-23 1985-03-05 Fried. Krupp Gesellschaft mit beschr/a/ nkter Haftung Seal for a continuous steel caster
WO1987001632A1 (en) * 1985-09-13 1987-03-26 Erik Olsson Ag Method and apparatus for continuous casting
US6675870B2 (en) 2000-05-15 2004-01-13 Ravindra V. Tilak Direct chill casting mold system
US6491087B1 (en) 2000-05-15 2002-12-10 Ravindra V. Tilak Direct chill casting mold system
US6622774B2 (en) 2001-12-06 2003-09-23 Hamilton Sundstrand Corporation Rapid solidification investment casting
US20050126741A1 (en) * 2003-12-11 2005-06-16 Bowles Wade L. Apparatus and method for horizontal casting and cutting of metal billets
US7028750B2 (en) 2003-12-11 2006-04-18 Novelis, Inc. Apparatus and method for horizontal casting and cutting of metal billets
EP2286940A2 (de) 2003-12-11 2011-02-23 Novelis Inc. Vorrichtung und Verfahren zum waagerechten Giessen und Schneiden von Metallknüppeln
US20110259773A1 (en) * 2008-12-30 2011-10-27 Yuanwen Chen Special container for mobile extrusion equipment
CN104827006A (zh) * 2015-04-22 2015-08-12 河南科技大学 一种大口径锻态铜管水平连铸连挤压设备及铜管生产工艺
CN104827006B (zh) * 2015-04-22 2017-01-11 河南科技大学 一种大口径锻态铜管水平连铸连挤压设备及铜管生产工艺
CN112517849A (zh) * 2020-12-03 2021-03-19 曾宇 一种高强度钢材铸造成型模具
CN112517849B (zh) * 2020-12-03 2022-05-10 大连长盛海华输送设备制造有限公司 一种高强度钢材铸造成型模具

Also Published As

Publication number Publication date
NO137881B (no) 1978-02-06
NO138360C (no) 1978-08-23
NO132526B (de) 1975-08-18
NO137846B (no) 1978-01-30
SE400490B (sv) 1978-04-03
DE1939512A1 (de) 1970-04-23
NO132526C (de) 1975-11-26
DE1939512C3 (de) 1974-11-28
NO137846C (no) 1978-05-10
FR2020944A1 (de) 1970-07-17
DE1939512B2 (de) 1974-04-25
CH558222A (de) 1975-01-31
NO138360B (no) 1978-05-16
CH553607A (de) 1974-09-13
NO137881C (no) 1978-05-16
FR2020944B1 (de) 1974-02-22
GB1278795A (en) 1972-06-21
GB1278797A (en) 1972-06-21
CH536669A (de) 1973-05-15
CH553016A (de) 1974-08-30
SE362594B (de) 1973-12-17

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Free format text: MERGER;ASSIGNORS:ALCAN ALUMINUM CORPORATION A CORP. OF NY (MERGED INTO);ALCAN PROPERTIES, INC., A CORP OF OHIO (CHANGED TO);REEL/FRAME:004536/0724

Effective date: 19860220