Articulated Segments (e.g., Caterpillar Type, Etc.) Patents (Class 164/430)
  • Patent number: 4537240
    Abstract: Moving molds are disposed in one array around the periphery of a casting wheel. A series of consecutive moving molds are closed during a predetermined angle range of the periphery of the casting wheel to define a continuous mold cavity between the closed moving molds and the casting wheel. A molten metal is poured into the thus defined continuous molding cavity at an upstream end thereof and is solidified while the casting wheel is rotated in unison with the moving molds. Then, moving molds are opened just before they arrive a cast outlet, and the cast is taken out.
    Type: Grant
    Filed: June 9, 1983
    Date of Patent: August 27, 1985
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Yutaka Tsuchida, Toshiyuki Fukai
  • Patent number: 4485835
    Abstract: A nozzle which can be used repeatedly for the supply of liquid metal is made up of individual, hollow, refractory sections fitted together side by side in a metal frame. The hollow elements of the nozzle may feature, in addition to at least one longitudinal channel for the supply of liquid metal, channels to accommodate heating elements also running in the longitudinal direction.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: December 4, 1984
    Assignee: Swiss Aluminium Ltd.
    Inventors: Ernst Huber, Wolfhart Rieger, Martin Bolliger
  • Patent number: 4331195
    Abstract: The present invention comprises several embodiments of a continuous casting machine for uninterrupted continuous production of non-ferrous metals and alloys, the machine having a pair of endless flexible mold assemblies, including mold blocks abutting each other in end-to-end relationship and each having a mold channel in one face thereof, whereby coengaging straight sections of the assemblies of mold blocks form a continuous mold cavity, extending forward and downward from the inlet end at an angle to provide desirable flow levels at the inlet of the cavity, the length of mold blocks in one assembly being preferably half the length of the mold blocks in the other assembly and indexed so that the abutting faces of the blocks of one assembly occur intermediately of the blocks of the other assembly to prevent heat dams from occurring.
    Type: Grant
    Filed: June 27, 1979
    Date of Patent: May 25, 1982
    Inventor: C. Eugene Webber
  • Patent number: 4290477
    Abstract: A nozzle which can be used repeatedly for the supply of liquid metal is made up of individual, hollow, refractory sections fitted together side by side in a metal frame. The hollow elements of the nozzle may feature, in addition to at least one longitudinal channel for the supply of liquid metal, channels to accommodate heating elements also running in the longitudinal direction.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: September 22, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Ernst Huber, Wolfhart Rieger, Martin Bolliger
  • Patent number: 4250950
    Abstract: A mold for casting metals is provided with a roughened surface so that, on first contact of the mold with the melt, heat transfer is controlled in such a way that the melt comes into contact only with the peaks of the projections on the mold surface and an air gap is formed between the melt and the valleys on the surface. The pattern of roughness on the mold surface comprises a uniform arrangement of pyramidal or blunted-cone shaped projections. Neighboring projections are spaced a distance d of 0.05 to 1 mm apart and have a height h of 0.1d<h<d. The pyramid or blunted con surfaces satisfy the condition of 0.05<.function./d.sup.2 <0.5. A process which does not involve deformation is preferred for producing the rough pattern, for example, a photochemical etching process. The molds are suitable for many casting processes, in particular for continuous D.C. ingot or strip casting with moving molds and caterpillar track type mold belts.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: February 17, 1981
    Assignee: Swiss Aluminium Ltd.
    Inventors: Kurt Buxmann, Martin Bolliger, Ivan Gyongyos
  • Patent number: 4217947
    Abstract: A process is described for the delivery of molten metal to a caterpillar type mold which is inclined slightly to the horizontal and is used for casting wide strip, especially non-ferromagnetic metals, such as aluminium of aluminium alloys. The metal is fed through a delivery nozzle made of fire resistant material to a head of liquid metal in the mold either under the free surface of this head of metal or through this free surface on the head of liquid metal. Premature contact with the mold wall is avoided and the molten metal is fed in an almost pressureless manner.
    Type: Grant
    Filed: April 27, 1978
    Date of Patent: August 19, 1980
    Assignee: Prolizenz AG
    Inventors: Ivan Gyongyos, Martin Bolliger