PRODUCTION OF TUBULAR MEMBER AND MEASUREMENT OF ELECTRIC RESISTANCE IN THICKNESS DIRECTION OF TUBULAR MEMBER
PROBLEM TO BE SOLVED: To continuously measure the electric resistance in the thickness direction of a tubular member without imparing the tubular member. SOLUTION: In a method for molding a thermoplastic resin compsn. into a tubular shape by melt extrusion molding, a hollow support rod 4 is fixed to...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
05.08.1997
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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Abstract | PROBLEM TO BE SOLVED: To continuously measure the electric resistance in the thickness direction of a tubular member without imparing the tubular member. SOLUTION: In a method for molding a thermoplastic resin compsn. into a tubular shape by melt extrusion molding, a hollow support rod 4 is fixed to an annular die 3 in the direction coaxial to the tubular member T and an internal mandrel 5 is provided to the hollow supporting rod 4 and one conductive roller 21 is provided under the internal mandrel 5 in the direction crossing a taking-over direction at a right angle and other conductive roller 21' is supported in opposed relation to the conductive roller 21 and the conductive rollers 21, 21' are brought into contact with the inner and outer surfaces of the extruded tubular member T to measure the electric resistance in the thickness direction of the tubular member T and the measured electric resistance value is used to control an extruder and/or a taking-over machine. |
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AbstractList | PROBLEM TO BE SOLVED: To continuously measure the electric resistance in the thickness direction of a tubular member without imparing the tubular member. SOLUTION: In a method for molding a thermoplastic resin compsn. into a tubular shape by melt extrusion molding, a hollow support rod 4 is fixed to an annular die 3 in the direction coaxial to the tubular member T and an internal mandrel 5 is provided to the hollow supporting rod 4 and one conductive roller 21 is provided under the internal mandrel 5 in the direction crossing a taking-over direction at a right angle and other conductive roller 21' is supported in opposed relation to the conductive roller 21 and the conductive rollers 21, 21' are brought into contact with the inner and outer surfaces of the extruded tubular member T to measure the electric resistance in the thickness direction of the tubular member T and the measured electric resistance value is used to control an extruder and/or a taking-over machine. |
Author | OTSU NORIHIRO MIWA MASANOBU MORIKOSHI MAKOTO |
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Notes | Application Number: JP19960013725 |
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RelatedCompanies | MITSUBISHI CHEM CORP |
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Snippet | PROBLEM TO BE SOLVED: To continuously measure the electric resistance in the thickness direction of a tubular member without imparing the tubular member.... |
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SubjectTerms | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TESTING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
Title | PRODUCTION OF TUBULAR MEMBER AND MEASUREMENT OF ELECTRIC RESISTANCE IN THICKNESS DIRECTION OF TUBULAR MEMBER |
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