CA2419500A1 - Method and apparatus for analyzing separation between spaced surfaces using magnetic field intensity measurements - Google Patents

Method and apparatus for analyzing separation between spaced surfaces using magnetic field intensity measurements Download PDF

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Publication number
CA2419500A1
CA2419500A1 CA002419500A CA2419500A CA2419500A1 CA 2419500 A1 CA2419500 A1 CA 2419500A1 CA 002419500 A CA002419500 A CA 002419500A CA 2419500 A CA2419500 A CA 2419500A CA 2419500 A1 CA2419500 A1 CA 2419500A1
Authority
CA
Canada
Prior art keywords
magnetic field
field intensity
intensity measurements
spaced surfaces
analyzing
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.)
Granted
Application number
CA002419500A
Other languages
French (fr)
Other versions
CA2419500C (en
Inventor
Stefan A. Lupke
Manfred A. A. Lupke
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 CA002419500A priority Critical patent/CA2419500C/en
Priority to CNU032465114U priority patent/CN2632628Y/en
Priority to CNB03122038XA priority patent/CN1262813C/en
Publication of CA2419500A1 publication Critical patent/CA2419500A1/en
Application granted granted Critical
Publication of CA2419500C publication Critical patent/CA2419500C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • B29C48/327—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections with centering means
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/92009—Measured parameter
    • B29C2948/92076—Position, e.g. linear or angular
    • 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
    • B29C2948/92009—Measured parameter
    • B29C2948/92276—Magnetic properties
    • 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
    • B29C2948/92771—Magnetic properties
    • 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
    • B29C2948/92923—Calibration, after-treatment or cooling zone
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

A method of analyzing spacing between two separated surfaces which has particular applicability for use in centering of die tooling within a mold tunnel of a plastic pipe molding apparatus is achieved by setting up a magnetic force which spans both surfaces between the spacing and then measuring intensity of the magnetic force to indicate extensive separation between the surfaces.
CA002419500A 2003-02-21 2003-02-21 Method and apparatus for analyzing separation between spaced surfaces using magnetic field intensity measurements Expired - Fee Related CA2419500C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002419500A CA2419500C (en) 2003-02-21 2003-02-21 Method and apparatus for analyzing separation between spaced surfaces using magnetic field intensity measurements
CNU032465114U CN2632628Y (en) 2003-02-21 2003-04-22 Apparatus for analyzing space between separated surfaces by magnetic field measuring results
CNB03122038XA CN1262813C (en) 2003-02-21 2003-04-22 Method and apparatus for analyzing separation between spacedsurfaces using magnetic field intensity measurements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002419500A CA2419500C (en) 2003-02-21 2003-02-21 Method and apparatus for analyzing separation between spaced surfaces using magnetic field intensity measurements

Publications (2)

Publication Number Publication Date
CA2419500A1 true CA2419500A1 (en) 2004-08-21
CA2419500C CA2419500C (en) 2006-08-15

Family

ID=32855082

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002419500A Expired - Fee Related CA2419500C (en) 2003-02-21 2003-02-21 Method and apparatus for analyzing separation between spaced surfaces using magnetic field intensity measurements

Country Status (2)

Country Link
CN (2) CN2632628Y (en)
CA (1) CA2419500C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101790449A (en) * 2007-10-22 2010-07-28 曼夫瑞德·A·A·鲁波克 The pipe extrusion system that can separate with the cooling plug
WO2015176156A1 (en) * 2014-05-20 2015-11-26 Lupke, Stefan, A. Apparatus and method for identifying thermal expansion in a pipe corrugator
US9649904B2 (en) 2012-11-15 2017-05-16 Volvo Truck Corporation Stroke sensor and fluid spring with stroke sensor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101790449A (en) * 2007-10-22 2010-07-28 曼夫瑞德·A·A·鲁波克 The pipe extrusion system that can separate with the cooling plug
CN101790449B (en) * 2007-10-22 2013-05-08 曼夫瑞德·A·A·鲁波克 Pipe extruding system with cooling plug separation
US9649904B2 (en) 2012-11-15 2017-05-16 Volvo Truck Corporation Stroke sensor and fluid spring with stroke sensor
WO2015176156A1 (en) * 2014-05-20 2015-11-26 Lupke, Stefan, A. Apparatus and method for identifying thermal expansion in a pipe corrugator
US10279536B2 (en) 2014-05-20 2019-05-07 Manfred A. A. Lupke System and method for identifying thermal expansion issues in a corrugator

Also Published As

Publication number Publication date
CA2419500C (en) 2006-08-15
CN2632628Y (en) 2004-08-11
CN1523321A (en) 2004-08-25
CN1262813C (en) 2006-07-05

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