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DE1105143B - Arrangement for inductive heating of screw presses - Google Patents

Arrangement for inductive heating of screw presses

Info

Publication number
DE1105143B
DE1105143B DESCH14745A DESC014745A DE1105143B DE 1105143 B DE1105143 B DE 1105143B DE SCH14745 A DESCH14745 A DE SCH14745A DE SC014745 A DESC014745 A DE SC014745A DE 1105143 B DE1105143 B DE 1105143B
Authority
DE
Germany
Prior art keywords
arrangement
inductive heating
cylinder
screw
screw presses
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.)
Pending
Application number
DESCH14745A
Other languages
German (de)
Inventor
Dipl-Ing Carl Schoerg
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DESCH14745A priority Critical patent/DE1105143B/en
Publication of DE1105143B publication Critical patent/DE1105143B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
    • B29C48/85—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/507—Screws characterised by the material or their manufacturing process
    • B29C48/509—Materials, coating or lining therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/6803—Materials, coating or lining therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
    • B29C48/845—Heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Press Drives And Press Lines (AREA)
  • General Induction Heating (AREA)

Description

Anordnung zur induktiven Beheizung von Schneckenpressen Schneckenpressen wurden bisher im allgemeinen mit Dampf oder flüssigen Wärmeträgern oder mittels elektrischer Widerstandsheizung erwärmt, was jedoch umständliche konstruktive Anordnungen verlangt. Es ist auch bereits bekannt, das Gehäuse von Schneckenpressen mit Hilfe eines elektromagnetischen Kraftfeldes induktiv zu erhitzen. Bei den bekannten Anordnungen wird jedoch nur der Zylindermantel mittels diesen umgebender, von Wechselstrom durchflossener Spulen erhitzt. Die Schnecken selbst werden daher nur indirekt durch die vom Zylindermantel durch das Preßgut auf die Schnecke wandernde Wärme und im weiteren Verlauf des Preßvorganges durch die Formänderungsarbeit im Preßgut erwärmt, was eine ungleichmäßige und nachteilige Erwärmung desselben zur Folge hat.Arrangement for inductive heating of screw presses Screw presses were previously generally with steam or liquid heat carriers or by means of electrical resistance heating heated, which, however, cumbersome constructive arrangements demands. It is also already known to use the housing of screw presses inductively heating an electromagnetic force field. In the known arrangements However, only the cylinder jacket is traversed by alternating current by means of the surrounding area Coils heated. The screws themselves are therefore only indirectly affected by those from the cylinder jacket Heat migrating through the material to be pressed onto the screw and in the further course of the pressing process heated by the deformation work in the pressed material, which is an uneven and disadvantageous Heating of the same has the consequence.

Erfindungsgemäß lassen sich sowohl der Zylinder als auch die Schnecke direkt durch induktive Beheizung erwärmen, indem man den Zylinder aus einem unmagnetischen Metall, wie unmagnetischem Eisen, herstellt, während die Schnecke aus einem magnetischen Material besteht. Die Schnecke wie auch die Innenfläche des Zylinders können mit einem korrosionsverhütenden Überzug versehen sein. Als Material für die Schnecke kann auch Nickel verwendet werden, wenn bei Temperaturen unterhalb 3000 C gearbeitet wird. According to the invention, both the cylinder and the screw can be used Heat directly by inductive heating by removing the cylinder from a non-magnetic Metal, such as non-magnetic iron, is made, while the worm is made of a magnetic one Material. The screw as well as the inner surface of the cylinder can with be provided with an anti-corrosive coating. As material for the snail Nickel can also be used when working at temperatures below 3000 C. will.

Der Vorteil der Anordnung besteht vor allem darin, daß nunmehr auch die Schnecke von außen direkt beheizt werden kann und man daher auch mit niedrigeren Wandtemperaturen auskommt, was für die Güte des Preßgutes vorteilhaft ist. The main advantage of the arrangement is that now also the screw can be heated directly from the outside and therefore also with lower Wall temperatures comes from, which is advantageous for the quality of the pressed material.

Wenn ein Zylinder mit Schnecke in erfindungsgemäß er Ausführung in eine von Wechselstrom vorzugsweise normaler Frequenz gespeiste, gegebenenfalls hitzebeständige Spule eingeführt wird, stellt der Zylinder einen kurzgeschlossenen Sekundärkreis eines Transformators dar, während die Schnecke dem Kern desselben entspricht. Naturgemäß können sich auch zwei oder mehrere Schnecken in einem gemeinsamen Zylinder befinden. Die in der Schnecke erregte Wärme läßt sich durch Veränderung des Widerstandes des Zylindermantels, beispielsweise durch Veränderung seiner Dicke, regeln. When a cylinder with a screw according to the invention he embodiment in one fed by alternating current, preferably of normal frequency, optionally heat-resistant Coil is inserted, the cylinder provides a short-circuited secondary circuit of a transformer, while the worm corresponds to the core of the same. Naturally there can also be two or more screws in a common cylinder. The heat generated in the screw can be changed by changing the resistance of the Regulate the cylinder jacket, for example by changing its thickness.

Die zur Erläuterung der Erfindung dienende Abbildung veranschaulicht eine erfindungsgemäße Schneckenpresse im Querschnitt in schematischer Weise. Die beiden gegenläufigen Schnecken 1 aus Stahl drehen sich innerhalb des Zylinders 2 aus austenitischem Stahl. Um den Zylinder herum liegt die hitzebeständige Spule 3. The illustration used to explain the invention illustrates a screw press according to the invention in cross section in a schematic manner. the two counter-rotating screws 1 made of steel rotate within the cylinder 2 made of austenitic steel. The heat-resistant coil is located around the cylinder 3.

Claims (1)

PATENTANSPRUCH Anordnung zur induktiven Beheizung von Schneckenpressen mittels diese umgebender, von Wechselstrom durchflossener Spulen, dadurch gekennzeichnet, daß der Zylinder aus einem unmagnetischen Metall, wie unmagnetischem Eisen, besteht und eine oder mehrere Schnecken aus magnetischem Material enthält. PATENT CLAIM Arrangement for inductive heating of screw presses by means of surrounding coils through which alternating current flows, characterized in that that the cylinder is made of a non-magnetic metal such as non-magnetic iron and one or more screws made of magnetic material. In Betracht gezogene Druckschriften: USA.-Patentschriften Nr. 2 449 355, 2 427 960. References considered: U.S. Patents No. 2,449 355, 2,427,960.
DESCH14745A 1954-02-12 1954-02-12 Arrangement for inductive heating of screw presses Pending DE1105143B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH14745A DE1105143B (en) 1954-02-12 1954-02-12 Arrangement for inductive heating of screw presses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH14745A DE1105143B (en) 1954-02-12 1954-02-12 Arrangement for inductive heating of screw presses

Publications (1)

Publication Number Publication Date
DE1105143B true DE1105143B (en) 1961-04-20

Family

ID=7427312

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH14745A Pending DE1105143B (en) 1954-02-12 1954-02-12 Arrangement for inductive heating of screw presses

Country Status (1)

Country Link
DE (1) DE1105143B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014206638A1 (en) * 2014-04-07 2015-10-08 Coperion Gmbh Worm machine and process for processing plastic material
DE102015219033A1 (en) 2015-10-01 2017-04-06 Coperion Gmbh Screw machine and process for the treatment of material to be processed
WO2017076556A1 (en) * 2015-11-05 2017-05-11 Coperion Gmbh Screw machine and corresponding method for preparing plastic material
CN108136495A (en) * 2015-10-01 2018-06-08 科倍隆有限公司 For generating the method and apparatus of the mixture of metal matrix material and additive
JP2019162724A (en) * 2018-03-19 2019-09-26 東洋機械金属株式会社 Injection molding machine and molding system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427960A (en) * 1942-07-31 1947-09-23 Henleys Telegraph Works Co Ltd Extrusion machine
US2449355A (en) * 1947-07-28 1948-09-14 Dow Chemical Co Internal two-zone heat control for plastics extruders

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427960A (en) * 1942-07-31 1947-09-23 Henleys Telegraph Works Co Ltd Extrusion machine
US2449355A (en) * 1947-07-28 1948-09-14 Dow Chemical Co Internal two-zone heat control for plastics extruders

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014206638A1 (en) * 2014-04-07 2015-10-08 Coperion Gmbh Worm machine and process for processing plastic material
WO2015154973A1 (en) * 2014-04-07 2015-10-15 Coperion Gmbh Screw machine and method for preparing a plastic material
DE102015219033A1 (en) 2015-10-01 2017-04-06 Coperion Gmbh Screw machine and process for the treatment of material to be processed
WO2017055260A1 (en) 2015-10-01 2017-04-06 Coperion Gmbh Screw machine and corresponding method for preparing plastic material
CN108136495A (en) * 2015-10-01 2018-06-08 科倍隆有限公司 For generating the method and apparatus of the mixture of metal matrix material and additive
US10882015B2 (en) 2015-10-01 2021-01-05 Coperion Gmbh Screw machine and method for the processing of material to be processed
CN108136495B (en) * 2015-10-01 2021-02-26 科倍隆有限公司 Method and apparatus for producing a mixture of a metal matrix material and an additive
WO2017076556A1 (en) * 2015-11-05 2017-05-11 Coperion Gmbh Screw machine and corresponding method for preparing plastic material
US11117306B2 (en) 2015-11-05 2021-09-14 Coperion Gmbh Screw machine and method for the processing of material to be processed
JP2019162724A (en) * 2018-03-19 2019-09-26 東洋機械金属株式会社 Injection molding machine and molding system

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