WO2002026468A3 - Process and apparatus for magnetizing plastic pipe - Google Patents

Process and apparatus for magnetizing plastic pipe Download PDF

Info

Publication number
WO2002026468A3
WO2002026468A3 PCT/US2001/042317 US0142317W WO0226468A3 WO 2002026468 A3 WO2002026468 A3 WO 2002026468A3 US 0142317 W US0142317 W US 0142317W WO 0226468 A3 WO0226468 A3 WO 0226468A3
Authority
WO
WIPO (PCT)
Prior art keywords
plastic pipe
magnetizing
doped
plastic
pipe
Prior art date
Application number
PCT/US2001/042317
Other languages
French (fr)
Other versions
WO2002026468A2 (en
Inventor
William L Goodman
Original Assignee
Gas Res Inst
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 Gas Res Inst filed Critical Gas Res Inst
Priority to AU2001295075A priority Critical patent/AU2001295075A1/en
Publication of WO2002026468A2 publication Critical patent/WO2002026468A2/en
Publication of WO2002026468A3 publication Critical patent/WO2002026468A3/en

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
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/0081—After-treatment of articles without altering their shape; Apparatus therefor using an electric field, e.g. for electrostatic charging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/003—Methods and devices for magnetising permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
    • B29K2995/0008—Magnetic or paramagnetic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A process and apparatus for magnetizing plastic pipe in which a plastic pipe material, plastic pipe coating, rectangular strips or solids rods are doped with a magnetizable material, the doped plastic material is extruded to form a plastic pipe comprising the magnetizable material, and the magnetic field is applied across the pipe diameter as the doped plastic pipe material extruded, thereby magnetizing the magnetizable material in the plastic pipe.
PCT/US2001/042317 2000-09-26 2001-09-26 Process and apparatus for magnetizing plastic pipe WO2002026468A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001295075A AU2001295075A1 (en) 2000-09-26 2001-09-26 Process and apparatus for magnetizing plastic pipe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US67051300A 2000-09-26 2000-09-26
US09/670,513 2000-09-26

Publications (2)

Publication Number Publication Date
WO2002026468A2 WO2002026468A2 (en) 2002-04-04
WO2002026468A3 true WO2002026468A3 (en) 2002-06-13

Family

ID=24690701

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/042317 WO2002026468A2 (en) 2000-09-26 2001-09-26 Process and apparatus for magnetizing plastic pipe

Country Status (2)

Country Link
AU (1) AU2001295075A1 (en)
WO (1) WO2002026468A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10370909B2 (en) 2014-08-04 2019-08-06 Halliburton Energy Services, Inc. Enhanced slickline

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249824A (en) * 1962-07-23 1966-05-03 Allen Bradley Co Method and apparatus for magnetizing bodies
US3609376A (en) * 1970-05-21 1971-09-28 Rfl Ind Inc Automatic calibrating apparatus for electrical instruments
US4093906A (en) * 1975-11-28 1978-06-06 Brunswick Corporation Permanent magnet pulse generator and method of forming and assembly
US4497011A (en) * 1981-05-14 1985-01-29 Karl Hurtig Switching apparatus for changing the absolute value and the permanent magnetization direction of ferromagnetic bodies, e.g. of permanent magnets
WO1992013227A1 (en) * 1991-01-28 1992-08-06 Tamaqua Cable Products Corporation Locatable magnetic plastic jacket on a non-metallic cable
US5354521A (en) * 1992-02-05 1994-10-11 Gas Research Institute Method of making a magnetically detectable plastic pipe
US5942961A (en) * 1992-04-14 1999-08-24 Flexmag Industries, Inc. Magnetized material having enhanced magnetic pull strength and a process and apparatus for the multipolar magnetization of the material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3249824A (en) * 1962-07-23 1966-05-03 Allen Bradley Co Method and apparatus for magnetizing bodies
US3609376A (en) * 1970-05-21 1971-09-28 Rfl Ind Inc Automatic calibrating apparatus for electrical instruments
US4093906A (en) * 1975-11-28 1978-06-06 Brunswick Corporation Permanent magnet pulse generator and method of forming and assembly
US4497011A (en) * 1981-05-14 1985-01-29 Karl Hurtig Switching apparatus for changing the absolute value and the permanent magnetization direction of ferromagnetic bodies, e.g. of permanent magnets
WO1992013227A1 (en) * 1991-01-28 1992-08-06 Tamaqua Cable Products Corporation Locatable magnetic plastic jacket on a non-metallic cable
US5354521A (en) * 1992-02-05 1994-10-11 Gas Research Institute Method of making a magnetically detectable plastic pipe
US5942961A (en) * 1992-04-14 1999-08-24 Flexmag Industries, Inc. Magnetized material having enhanced magnetic pull strength and a process and apparatus for the multipolar magnetization of the material

Also Published As

Publication number Publication date
WO2002026468A2 (en) 2002-04-04
AU2001295075A1 (en) 2002-04-08

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