MEASURING METHOD FOR STRETCH PERCENTAGE ON DOUBLE STAND HEAT TREATING MILL

MEASURING METHOD FOR STRETCH PERCENTAGE ON DOUBLE STAND HEAT TREATING MILL

PURPOSE:To reliably measure a stretch percentage of a strip at the top and rear end parts by obtaining the stretch percentage of the strip from the passed length per a unit time of the strip at inlet and outlet sides of work rolls and a preceding percentage of the strip at the inlet side work rolls....

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Hauptverfasser: NISHIMURA HIROSHI, NABE SHIGEKI, NAKANO YOSHIHISA
Format: Patent
Sprache:eng
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MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
ROLLING OF METAL
TRANSPORTING
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creator NISHIMURA HIROSHI
NABE SHIGEKI
NAKANO YOSHIHISA
description PURPOSE:To reliably measure a stretch percentage of a strip at the top and rear end parts by obtaining the stretch percentage of the strip from the passed length per a unit time of the strip at inlet and outlet sides of work rolls and a preceding percentage of the strip at the inlet side work rolls. CONSTITUTION:The strip 6 fed from a pay-off reel 7 is sent through inlet side tension rollers 1 to the inlet side work rolls 10 and the outlet side work rolls 11 to roll, then wound on a tension reel 12 through tension rollers 2. In this case, number of revolutions of the inlet and outlet sides work rolls 10, 12 are measured by pulse oscillators 13, 14 to obtain peripheral speeds and to obtain the passed lengths per a unit time l, l0. Using these passed lengths l, l0 and a coefficient alpha of preceding of the inlet side work roll 10, the stretch percentage of the strip 6 is obtained by a computing element 5'. In this way, the stretch percentages of the strip 6 at the top and rear ends are obtained reliably.
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subjects MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
ROLLING OF METAL
TRANSPORTING
title MEASURING METHOD FOR STRETCH PERCENTAGE ON DOUBLE STAND HEAT TREATING MILL
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