• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Shaping machine with a melting vessel (2), an induction coil (3) arranged on the melting vessel (2) for inductive heating, in particular melting, of a material, and a shaping cavity (4), wherein the melting vessel (2) at least one for an electromagnetic field in Having substantially permeable Einstrahlbereich (5) and the shaping machine is adapted to cool the material in the cavity (4) so that a substantially crystalline solid forms, the Einstrahlbereich (5) overlapping a body (6) with a higher magnetic permeability is arranged as the melting vessel (2) and the induction coil (3) between the body (6) and the Einstrahlbereich (5) is arranged.
    公开号:AT517241A1
    申请号:T355/2015
    申请日:2015-06-08
    公开日:2016-12-15
    发明作者:Wolfgang Amrhein；Hubert Mitterhofer；Siegfried Dipl Ing Dr Silber；Werner Ing Kappelmüller；Andreas Prokesch
    申请人:Engel Austria Gmbh；
    IPC主号:
    专利说明:

    The present invention relates to a forming machine having the features of the preamble of claim 1, a method according to the features of the preamble of claim 13 and a use of an arrangement of a melting vessel and an induction coil arranged on the melting vessel.
    It is known to arrange metal in a melting vessel and inductively to heat or melt by means of a coil. The melt can then be conveyed into a shaping cavity in which the metal cures. This is known from US 2013/0037999 A1, WO 2013/043156 A1, WO 2013/112130 A1, US 2015/0013933 A1 and US 2014/0332176 A1, it being provided in each case to cool the melt so quickly in that a substantially amorphous solid results.
    The mentioned documents also disclose various configurations for the crucible, also called boat or engl, "crucible" and the induction coil.
    Despite these measures, this method suffers from relatively large losses, which occur because the melting vessel itself is also made of conductive metal. Thus, in addition to the metal which is actually to be melted, the melting vessel is also heated. This then leads to the fact that the melting vessel itself must be cooled consuming.
    The object of the invention is to provide a device and a method, whereby the effectiveness of the energy deposition is increased in the material to be heated.
    With regard to the device, this object is achieved with the features of claim 1. With regard to the method, this object is achieved with the features of claim 13. Protection is also desired for use according to claim 16.
    A basic aspect of the invention is to provide a body which overlaps the irradiation area and which has a higher magnetic field
    Permeability (also called: magnetic conductivity) than the melting vessel has. The induction coil is arranged between the body and the Einstrahlbereich. The invention is therefore based on the finding that by means of such a body of the electromagnetic flux, which is generated by the induction coil, can be concentrated on the Einstrahlbereich. A larger proportion of the electromagnetic energy is thus deposited directly in the material through the Einstrahlbereich, or a smaller proportion is deposited in the melting vessel (both compared to the prior art). The shielding of the material by the melting vessel is thus bypassed. Among other things, it is therefore surprising that a body according to the invention can also provide a special focus on energy outside of the coil. For the invention, the crystalline curing of the heated or molten material is provided. Ie. the solid that forms has a microscopic lattice structure. This lattice structure is characterized by the periodic or quasi-periodic repetition of so-called unit cells. These elementary cells form the basic building block of the lattice structure, whereby the entire lattice can be obtained by translations and rotations from the unit cell.
    The considered materials can usually also be present in an amorphous state in which the mentioned lattice structure is not present. In fact, the structure of a real crystal will never be that of an ideal grating, since lattice defects, inclusions, and the like, can never be completely avoided. For the purposes of this application, those solids are considered to be crystalline, which has a degree of crystallinity (ie, the proportion of the solid which is present as a crystal) of at least 50%, preferably at least 80% and particularly preferably at least 95%. From a solid-state physical point of view, the amorphous phase differs from the crystalline phase by the absence of so-called long-range correlations. Long-range correlations are those correlations which have a weaker waste behavior than the
    Have lattice-bond-forming interaction (interatomic and intermolecular forces).
    Shaping machines can be understood to mean any machine which, by heating or melting, causes the material to be malleable and utilizes this formability for shaping. This is done in a cavity in which the material is arranged, wherein the material in the cavity can also be pressed, for example.
    Further advantageous embodiments of the invention are defined in the dependent claims.
    It can be provided that the body extends substantially parallel to a longitudinal axis of the induction coil. As a result, the electromagnetic radiation can be focused into the melting vessel over a length of the induction coil. This is especially true when the melting vessel is cylindrical. This cylindrical design can have even more advantages. For example, heated or molten material from a cylinder can be relatively easily transported by means of a punch or piston in the cavity.
    The complete focusing of the radiated energy over the length of the induction coil may also be useful if the body has a longitudinal extent which corresponds or is substantially greater than a longitudinal extent along the longitudinal axis of the induction coil.
    It may also be provided that the body is designed as a yoke - preferably with a U-profile facing the melting vessel. The field lines bundled by the body can be focused in this way in a particularly targeted manner into the irradiation area.
    It can be provided that the body has a lower electrical conductivity than the induction coil. In this way it can be prevented that currents are induced in the body itself which would heat the body and which in turn would cause a disturbance of the magnetic field.
    The body may preferably be made of a ferrite material. Ferrite in this case refers to a ferromagnetic ceramic material (i.e., not: modification of the iron). Among the ferrites, so-called soft magnetic ferrites or ferrospinels may be preferred, since they have a particularly high magnetic permeability with low electrical conductivity (see Matthee,
    Lexikon der Fertigungstechnik und Arbeitsmaschinen, Deutsche Verlagsanstalt Stuttgart, 1967).
    In particular, metals may be provided as materials to be heated or melted, of course, any batch conductive material is susceptible to inductive heating.
    The irradiation region can be formed by at least one opening in the melting vessel. An opening in the melting vessel can be best suited for the irradiation of electromagnetic energy, whereby, of course, lower material thicknesses or a change of material to a material with low electrical conductivity can be used.
    Geometrically useful, the opening may have a slot, especially if the melting vessel is cylindrical with surrounding coil.
    Particularly preferably, it can be provided that at least one conductor loop of the induction coil surrounds the melting vessel, wherein preferably substantially all conductor loops of the induction coil surround the melting vessel. This can be advantageous since the largest magnetic field strength occurs inside the conductor loops.
    The induction coil and the melting vessel may be arranged substantially concentrically.
    The material, after being heated or melted before being cured, can be transported into the cavity which confers the desired shape. In particular, in the case of a cylindrical melting vessel, this can be done by a stamp.
    The material may be provided in the form of a billet, which may preferably be cylindrical. This bar is often called "ingot" in English.
    Further details and advantages of the invention will become apparent from the figures and the associated description of the figures. Showing:
    1 is a schematic side view of an inventive arrangement of a melting vessel, an induction coil and a body,
    2 is a schematic sectional view of the illustration of FIG. 1,
    3 is a perspective view of the arrangement of FIG. 1,
    Fig. 4 is a schematic sectional view of a shaping machine according to the invention and
    5 is a plan view of the arrangement of FIG. 1.
    Fig. 1 shows schematically a melting vessel 2, which is formed in this case as a hollow cylinder. The melting vessel 2 is surrounded by the conductor loops 7 of the induction coil 3. In this embodiment, the longitudinal axis X of the induction coil 3 also forms the longitudinal axis of the melting vessel 2. The melting vessel 2 and the induction coil 3 are thus arranged concentrically. Also recognizable is the body 6. This is made of a soft magnetic ferrite material.
    The sectional view of FIG. 2 shows how the body 6 is arranged with respect to the irradiation area 5. In this case, the irradiation area 5 is designed as a slot at the top side of the melting vessel 2 (see FIG. 3). (The slot is designed so narrow that it is essentially not visible in the side view of FIG. 1).
    The body 6 is formed as a yoke with a U-shaped profile. The U-shaped profile surrounds the induction coil 3. As a result, the magnetic field lines concentrated in the body 6 are conducted directly into the irradiation area.
    Fig. 3 shows a perspective view of the embodiment of Figures 1 and 2. It shows substantially the same elements, but in part with more details. FIG. 3 is intended to convey an impression of how the individual described objects are arranged spatially relative to one another.
    It should be noted that the opening, which serves as Einstrahlbereich 5, can also be designed to be much wider.
    Fig. 4 is a schematic sectional view, wherein in addition to the elements of Fig. 2, further elements of the entire shaping machine are shown schematically. The material - in this case a billet 8 made of metal - is melted in the inventive arrangement. By means of a punch 9, the molten material is forced into the shaping cavity 4. In this, the material hardens at least partially crystalline.
    Fig. 5 is a plan view of the arrangement of Fig. 1. In this case, the induction coil 3 is not shown for clarity. In the plan view, the body 6 can be seen above the melting vessel 2. Dashed lines indicate the irradiation area 5 of the melting vessel 2. As can be seen, the body 6 completely overlaps the irradiation area 5 in the direction of the irradiation. However, at least part of the technical effect can also be achieved if the body 6 does not completely overlap the irradiation area 5, but only partially. The direction from which the overlap is viewed may preferably be a direction in which the irradiation of the electromagnetic field occurs through the irradiation region 5.
    Innsbruck, on June 5, 2015
    权利要求:
    Claims (16)
    [1]
    claims
    1. forming machine with a melting vessel (2), one on the melting vessel (2) arranged induction coil (3) for inductive heating, in particular melting, a material, and a shaping cavity (4), wherein the melting vessel (2) at least one for an electromagnetic Field substantially permeable Einstrahlbereich (5) and the shaping machine is adapted to cool the material in the cavity (4) so that a substantially crystalline solid forms, characterized in that the Einstrahlbereich (5) overlapping a body ( 6) having a higher magnetic permeability than the melting vessel (2) is arranged and the induction coil (3) between the body (6) and the Einstrahlbereich (5) is arranged.
    [2]
    2. Forming machine according to claim 1, characterized in that the body (6) extends substantially parallel to a longitudinal axis (X) of the induction coil (3).
    [3]
    3. Forming machine according to claim 1 or 2, characterized in that the body (6) has a longitudinal extent which corresponds to a longitudinal extent along the longitudinal axis (X) of the induction coil (3) or is substantially greater.
    [4]
    4. Forming machine according to one of claims 1 to 3, characterized in that the body (6) as a yoke - preferably with a melting vessel (2) facing U-profile - is formed.
    [5]
    5. Forming machine according to one of claims 1 to 4, characterized in that the body (6) has a lower electrical conductivity than the induction coil (3).
    [6]
    6. Forming machine according to one of claims 1 to 5, characterized in that the body (6) made of a ferrite material, in particular a soft magnetic ferrite material, is made.
    [7]
    7. Forming machine according to one of claims 1 to 6, characterized in that the material is a metal.
    [8]
    8. forming machine according to one of claims 1 to 7, characterized in that the melting vessel (2) is substantially cylindrical.
    [9]
    9. Forming machine according to one of claims 1 to 8, characterized in that the Einstrahlbereich (5) is formed by at least one opening in the melting vessel (2).
    [10]
    10. Forming machine according to claim 9, characterized in that the at least one opening has a slot.
    [11]
    11. Forming machine according to one of claims 1 to 10, characterized in that at least one conductor loop of the induction coil (3) surrounds the melting vessel (2), wherein preferably substantially all conductor loops of the induction coil (3) surround the melting vessel (2).
    [12]
    12. Forming machine according to claim 8 and claim 11, characterized in that the induction coil (3) and the melting vessel (2) are arranged substantially concentric.
    [13]
    13. A method for inductive heating, in particular melting, and crystalline curing of a material, wherein - a melting vessel (2) is provided with an electromagnetic field for substantially permeable Einstrahlbereich (5), - the material in the melting vessel (2) and arranged by an induction coil (3) is inductively heated, - the material in a forming cavity (4) is cooled so that a substantially crystalline solid forms, - characterized in that the Einstrahlbereich (5) overlapping arranged body (6) a higher magnetic permeability than the melting vessel (2) is used, wherein the induction coil (3) between the body (6) and the Einstrahlbereich (5) is arranged.
    [14]
    14. The method according to claim 13, characterized in that the material after heating, in particular melting, and before curing in the cavity (4) is transported.
    [15]
    15. The method according to claim 13 or 14, characterized in that the material is provided in the form of a, preferably cylindrical, billet.
    [16]
    16. Use of an arrangement comprising a melting vessel (2) and an induction coil (3) arranged on the melting vessel (2), wherein - the melting vessel (2) has at least one irradiation area (5) which is essentially permeable to an electromagnetic field, - the irradiation area ( 5) overlapping a body (6) with a higher magnetic permeability than the melting vessel (2) is arranged and - the induction coil (3) between the body (6) and the Einstrahlbereich (5) is arranged for inductive heating, in particular melting, and substantially crystalline curing of a material. Innsbruck, on June 5, 2015
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1431686A|1920-12-21|1922-10-10|Rohn Wilhelm|Induction furnace|
    DE935452C|1952-08-20|1955-11-17|Brown|Induction crucible furnace with high melting capacity|
    US3223519A|1957-05-20|1965-12-14|Nat Distillers Chem Corp|Induction furnace|
    GB1122944A|1966-01-28|1968-08-07|Standard Telephones Cables Ltd|Improvements in or relating to the treatment of reactive materials|
    AT262029B|1966-02-09|1968-05-27|Ges Fertigungstechnik & Maschb|Device for producing local, circumferential reinforcements on cylindrical hollow bodies|
    GB2161591A|1984-07-14|1986-01-15|Ipw Limited|Coreless induction furnace|
    US5844213A|1990-01-31|1998-12-01|Inductotherm Corp.|Induction heating coil assembly for prevention of circulating currents in induction heating lines for continuous-cast products|
    US5197081A|1990-05-24|1993-03-23|Inductotherm Corp.|magnetic return apparatus for coreless induction furnaces|
    JPH09239518A|1996-03-07|1997-09-16|Hitachi Metals Ltd|Method for casting composite material|
    DE19906939C2|1999-02-19|2002-09-19|Honsel Ag|Induction crucible furnace and its use for the production of castings from particle-reinforced aluminum and magnesium alloys|
    JP2002066707A|2000-08-22|2002-03-05|Hitachi Metals Ltd|Method of semi-solidified die casting|
    JP2004116980A|2002-09-30|2004-04-15|Nippon Steel Corp|Induction heated melting furnace|
    EP1716376B1|2004-01-16|2016-10-12|Consarc Corporation|Cold crucible induction furnace|
    CN100485063C|2006-01-24|2009-05-06|东北大学|High temperature treating device under strong magnetic field|
    DE502007002737D1|2007-03-06|2010-03-18|Huettinger Elektronik Gmbh|Flexible inductor for inductive sealing of containers|
    CN201089010Y|2007-09-21|2008-07-23|许小忠|Magnesium alloy quantitative casting furnace|
    AU2009296420B2|2008-09-28|2015-12-24|Inductotherm Corp.|Openable induction coil and electromagnetically shielded inductor assembly|
    US8803046B2|2009-08-11|2014-08-12|Radyne Corporation|Inductor assembly for transverse flux electric induction heat treatment of electrically conductive thin strip material with low electrical resistivity|
    KR101218923B1|2010-09-15|2013-01-04|한국수력원자력 주식회사|Cold Crucible Induction Melter Using United Inductor and Crucible|
    US8858868B2|2011-08-12|2014-10-14|Crucible Intellectual Property, Llc|Temperature regulated vessel|
    WO2013043156A1|2011-09-20|2013-03-28|Crucible Intellectual Property Llc|Induction shield and its method of use in a system|
    JP6193885B2|2012-01-23|2017-09-06|アップル インコーポレイテッド|Container for melting material|
    JP2014030906A|2012-08-01|2014-02-20|Sumitomo Heavy Ind Ltd|Injection device|
    US10197335B2|2012-10-15|2019-02-05|Apple Inc.|Inline melt control via RF power|
    US9445459B2|2013-07-11|2016-09-13|Crucible Intellectual Property, Llc|Slotted shot sleeve for induction melting of material|DE102018109322A1|2018-04-19|2019-10-24|Engel Austria Gmbh|Melting unit for a molding machine and molding machine|
    CN110557854A|2018-05-30|2019-12-10|杜磊|Copper alloy manufacturing equipment adopting photoelectronic device and photoelectrons|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA355/2015A|AT517241B1|2015-06-08|2015-06-08|Shaping machine and method for inductive heating|ATA355/2015A| AT517241B1|2015-06-08|2015-06-08|Shaping machine and method for inductive heating|
    DE102016006917.1A| DE102016006917B4|2015-06-08|2016-06-06|Molding machine|
    US15/174,103| US20160360576A1|2015-06-08|2016-06-06|Shaping machine|
    KR1020160070292A| KR101861428B1|2015-06-08|2016-06-07|Shaping machine|
    CN201610638411.2A| CN106312009B|2015-06-08|2016-06-07|Forming machine and method for induction heating|
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