US3427012A - Scarfing apparatus for upright ingots - Google Patents

Scarfing apparatus for upright ingots Download PDF

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Publication number
US3427012A
US3427012A US550730A US3427012DA US3427012A US 3427012 A US3427012 A US 3427012A US 550730 A US550730 A US 550730A US 3427012D A US3427012D A US 3427012DA US 3427012 A US3427012 A US 3427012A
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US
United States
Prior art keywords
scarfing
ingot
burner
ingots
burners
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
US550730A
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English (en)
Inventor
Josef Lambrecht
Georg Stadlmann
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.)
Voestalpine AG
Voest AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Application granted granted Critical
Publication of US3427012A publication Critical patent/US3427012A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K7/00—Cutting, scarfing, or desurfacing by applying flames
    • B23K7/06—Machines, apparatus, or equipment specially designed for scarfing or desurfacing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
    • B23D79/12—Machines or devices for peeling bars or tubes making use of cutting bits arranged around the workpiece, otherwise than by turning

Definitions

  • the burners are individually adjusted to conform to the shape of the ingot and the carriage raised along a vertical guide column at the desired speed.
  • Each burner is guided over the ingot surface by a liquid cooled feeler and is spring-urged to follow the surface.
  • the vertical guide column is suspended from a frame movable in a direction parallel to the surface to be scarfed and the burner carriage is movable in a direction perpendicular to the surface, to allow universal positioning.
  • the scarfing of hot ingots is much more economical than the scarfing of blooms or slabs.
  • a scarfing device which comprises a burner adapted to be vertically movable along an upright ingot, said burner being arranged in a cage slewable around the ingot axis.
  • the construction described involves difiiculties and troubles insofar as the operator is insufiiciently protected from heat radiation and the burner flame cannot be adjusted satisfactorily to the ingot surface.
  • the scarfing apparatus is characterized in that individually movable scarfing burners provided with automatic burner spacing means are suspended from a stable guide column, which is movable on wheels in a horizontal direction. The movements of the individual scarfing burners are effected immediately after scarfing has begun and under the action of an electric motor or of hydraulic means and under manual control or programmed automatic control.
  • the scarfing apparatus may be provided with flue gas removing means comprising a stationary or movable hood.
  • FIG. 1 is a side elevation showing the scarfing apparatus according to the invention
  • FIG. 2 a transverse sectional view showing a crowned ingot
  • FIG. 3 an elevation showing the apparatus of FIG. 1.
  • a frame 2 is movable on skids 3 or wheels along rails 4 mounted on said beams parallel to the ingot surface to be scarfed. This movement may be imparted to the frame 2 by an electric motor drive or by hydraulic cylinders 23 (FIG. 3).
  • a guide column 5 is suspended from the frame 2 and carries the vertically movable carriage 6.
  • the lifting movement of the carriage 6 may also be effected by an electric motor or a hydraulic jack 7 (FIG. 3), from which a rope 8 extends, which passes around a pulley 9 secured to the end of the piston rod.
  • the carriage 6 is provided with two guide rods 10, which carry the jib arm 11, on which the scarfing burners 12 are individually mounted to be movable independently from each other.
  • the movement of the scarfing burner nozzles 12 to a position in which they are close to the ingot surface 14 to be scarfed may be effected by an electric motor or by a hydraulic cylinder 13. This movement is also infinitely variable and the guide rods can be held in any position.
  • the guide rods 10 are mounted in bushings 15 of grey cast iron.
  • Each scarfing burner 12 and its mounting 22 form an exchangeable unit.
  • the mounting 22 is pivoted in the jib arm 11.
  • the hydraulic cylinder 1'3 urges the scar-fing burners towards the ingot surface to be scarfed.
  • a spring strut 16 permits of an adjustment of each scarfing burner to the ingot surface irrespective of a crowned horizontal cross-section or an irregularity of the vertical cross-section.
  • each burner is provided with a water-cooled feeler 17, which ensures a constant distance between the burner and the surface of the ingot.
  • This feeler 17 comprises a tube, through which a coolant flows, and has such a curved shape that it can vertically and horizontally slide on the ingot.
  • Each scarfing burner is also provided with a hydraulic locking cylinder 18, which ensures an adjustment of the burner 12 to the crowned shape of the ingot.
  • the scarfing burners are moved close to the ingot and the locking cylinders 18 are locked so that the burners are adjusted to the shape of the ingot for the initial scarfing.
  • the locking cylinders 18 are released.
  • the burners 12 are pivotable in their mountings and that the spring struts 16 maintain the feelers 17 urged against the ingot surface.
  • the two springs 19 and the limit switch 20 disposed in the longitudinal axis of the burners prevent the burners from damage in case they run up on the ingot. Protection against the heat radiation from the ingot is afforded by a wall 21, which may be water-cooled.
  • the apparatus according to the invention may be duplicated with one apparatus on each side of the ingot,
  • a scarfing apparatus for upright ingots comprising, a frame adapted to be movable in a horizontal direction parallel to the ingot surface to be scarfed, a vertical guide column fixed to said frame for movement therewith, a plurality of independently movable burners supported from said guide column, means for moving said burners in a horizontal direction perpendicular to said ingot surface, and means individually adjusting said burners to scarfing position.
  • a scarfing apparatus for upright ingots comprising, a frame adapted to be movable in a horizontal direction parallel to a vertical ingot surface to be scarfed, a vertical guide column fixed to said frame for movement therewith, a carriage mounted on said guide column and adapted to be raised and lowered along said column, said carriage including burner support means and guide means for moving said burner support means in a horizontal direction perpendicular to the surface to be scarfed, and a plurality of independently adjustable scarfing burners carried by said burner support means and adapted to be individually moved and adjusted to scarfing position.
  • a scarfing apparatus as set forth inlclaim 2 wherein said guide means includes a plurality of guide rods mounted on said carriage for horizontal movement, each of said guide rods being connected at one end to said burner support means and its other end to an hydraulic cylinder for controlling the horizontal displacement of the guide rod and the burner support means.
  • a scarfing apparatus as set forth in claim 2, wherein the supporting construction of said burners is protected against radiation from the ingot surface by shielding means.
  • each scarfing burner comprises a locking means, by which the burner can be locked in a position in which it is adjusted to the cross-sectional shape of the ingot.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Gas Burners (AREA)
  • Heat Treatment Of Articles (AREA)
  • Furnace Details (AREA)
US550730A 1965-06-09 1966-05-17 Scarfing apparatus for upright ingots Expired - Lifetime US3427012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT519265A AT262028B (de) 1965-06-09 1965-06-09 Flämmvorrichtung für Blöcke

Publications (1)

Publication Number Publication Date
US3427012A true US3427012A (en) 1969-02-11

Family

ID=3572984

Family Applications (1)

Application Number Title Priority Date Filing Date
US550730A Expired - Lifetime US3427012A (en) 1965-06-09 1966-05-17 Scarfing apparatus for upright ingots

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US (1) US3427012A (de)
AT (1) AT262028B (de)
GB (1) GB1149194A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4842336B1 (de) * 1970-09-01 1973-12-12
US3862749A (en) * 1974-01-30 1975-01-28 Af Ind Metal slab conditioning system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110052663B (zh) * 2019-04-24 2020-04-17 燕山大学 一种消除搅拌摩擦焊汽车轮毂环焊缝匙孔的装置及方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US508476A (en) * 1893-11-14 Crane
US2125176A (en) * 1933-10-28 1938-07-26 Union Carbide & Carbon Corp Apparatus for removing metal from the surfaces of metallic bodies
US2223452A (en) * 1936-09-16 1940-12-03 Linde Air Prod Co Blowpipe apparatus for surface conditioning
US2223451A (en) * 1934-06-27 1940-12-03 Union Carbide & Carbon Corp Apparatus for removing surface metal from metallic bodies
US2231014A (en) * 1938-12-03 1941-02-11 Union Carbide & Carbon Res Lab Welding process and apparatus
US3080983A (en) * 1963-03-12 blatt
US3358342A (en) * 1964-11-09 1967-12-19 Monolith Portland Cement Co Apparatus for forming concrete articles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US508476A (en) * 1893-11-14 Crane
US3080983A (en) * 1963-03-12 blatt
US2125176A (en) * 1933-10-28 1938-07-26 Union Carbide & Carbon Corp Apparatus for removing metal from the surfaces of metallic bodies
US2223451A (en) * 1934-06-27 1940-12-03 Union Carbide & Carbon Corp Apparatus for removing surface metal from metallic bodies
US2223452A (en) * 1936-09-16 1940-12-03 Linde Air Prod Co Blowpipe apparatus for surface conditioning
US2231014A (en) * 1938-12-03 1941-02-11 Union Carbide & Carbon Res Lab Welding process and apparatus
US3358342A (en) * 1964-11-09 1967-12-19 Monolith Portland Cement Co Apparatus for forming concrete articles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4842336B1 (de) * 1970-09-01 1973-12-12
US3862749A (en) * 1974-01-30 1975-01-28 Af Ind Metal slab conditioning system

Also Published As

Publication number Publication date
DE1577001B2 (de) 1972-12-07
GB1149194A (en) 1969-04-16
AT262028B (de) 1968-05-27
DE1577001A1 (de) 1970-04-09

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