MANUFACTURE OF TUBULAR BODY AND MEASURING METHOD FOR ELECTRIC RESISTANCE OF TUBULAR BODY
PROBLEM TO BE SOLVED: To provide a measuring method for the electric resistance of a tubular body capable of continuously measuring the electric resistance of the outer surface of the tubular body without impairing the tubular body. SOLUTION: In a method wherein a thermoplastic resin composition is...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English |
Published |
03.10.1997
|
Edition | 6 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | PROBLEM TO BE SOLVED: To provide a measuring method for the electric resistance of a tubular body capable of continuously measuring the electric resistance of the outer surface of the tubular body without impairing the tubular body. SOLUTION: In a method wherein a thermoplastic resin composition is shaped like a tube by melt extrusion molding, conductive rollers 21 on one side and conductive rollers 21' on the other are provided outside a tubular body T, in parallel and in the direction of intersecting the haul-off direction perpendicularly. The conductive rollers 21 and 21' are brought into contact with the outer surface of the tubular body T to measure the electric resistance of the tubular body T and extrusion equipment and/or haul-off equipment are controlled by using a measured value of the electric resistance. |
---|---|
Bibliography: | Application Number: JP19960060771 |