WOUND IRON CORE MANUFACTURING DEVICE AND WOUND IRON CORE MANUFACTURING METHOD

WOUND IRON CORE MANUFACTURING DEVICE AND WOUND IRON CORE MANUFACTURING METHOD

This wound core producing apparatus (40) includes a bending device (20) that bends a steel sheet (21), and a feed roll (60) that feeds the steel sheet (21) to the bending device (20), in which the bending device (20) includes a die (22) and a punch (24), the die (22) includes a curved portion (51) d...

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Hauptverfasser: MIZUMURA, Takahito, MOGI, Hisashi
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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creator MIZUMURA, Takahito
MOGI, Hisashi
description This wound core producing apparatus (40) includes a bending device (20) that bends a steel sheet (21), and a feed roll (60) that feeds the steel sheet (21) to the bending device (20), in which the bending device (20) includes a die (22) and a punch (24), the die (22) includes a curved portion (51) disposed at an end portion on the punch (24) side, and a flat portion (52) continuously connected to the curved portion (51) from a direction opposite to the punch (24) side and in contact with the steel sheet (21), and when a distance from a center of the feed roll (60) to an end surface on the die (22) side of the punch (24) along a conveyance direction (25) of the steel sheet (21) is denoted by L mm, a diameter of the feed roll (60) is denoted by R mm, a pressure applied to the steel sheet (2 1) by the feed roll (60) is denoted by p MPa, and a temperature at a position 20 mm away from a boundary between the curved portion (51) and the flat portion (52) in a direction opposite to the conveyance direction (25) is denoted by T°C, predetermined formulas are satisfied.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
title WOUND IRON CORE MANUFACTURING DEVICE AND WOUND IRON CORE MANUFACTURING METHOD
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