Title:
MANUFACTURE OF PRECOATED COMPOSITE VIBRATION DAMPING STEEL SHEET
Document Type and Number:
Japanese Patent JPH01188331
Kind Code:
A
Abstract:
PURPOSE:To obtain a composite vibration damping steel sheet whose vibration damping properties and shearing strength are favorable without generating deterioration in durability of a coated surface, by a method wherein precoated steel sheets are bonded with pressure by heating at the curing temperature or higher of a resin solution and a specific temperature or lower by feeding a synthetic resin solution obtained by adding isocyanate to a solution containing a specific quantity or more of polybutadiene diol between the precoated steel sheets. CONSTITUTION:A synthetic resin solution 3 obtained by adding isocyanate to a solution containing at least 30wt.% polybutadiene diol, which is a main ingredient, as a crosslinking agent is applied to the surfaces of precoated steel sheets 1 where resin coatings have been formed on both sides by an applicator device 2. The precoated steel sheet 1 to which the resin solution 3 have been applied is heated by a heating furnace 4 at a temperature of the curing temperature of the resin solution or higher and 150 deg.C or lower. Press bonding of the precoated steel sheets 1 to each other is performed by a laminating roll 5 so that surfaces of them coated with the resin solution abut against each other and high-temperature vibration damping steel sheet is cooled by spraying water over the high-temperature vibration damping steel sheet with a cooling device 6. Water is squeezed by a squeeze rolls 7, recorrection of a form is performed and a composite vibration damping steel sheet is wound up in a state of a coil by a tension reel 8.
Inventors:
NAKAMURA MICHIO
MURAKAMI TOSHINORI
KATO SHIGEMICHI
MASUHARA KENICHI
MURAKAMI TOSHINORI
KATO SHIGEMICHI
MASUHARA KENICHI
Application Number:
JP1088688A
Publication Date:
July 27, 1989
Filing Date:
January 22, 1988
Export Citation:
Assignee:
NISSHIN STEEL CO LTD
International Classes:
B32B15/095; B32B15/08; B32B37/00; (IPC1-7): B29D9/00; B32B15/08
Domestic Patent References:
| JPS62221532A | 1987-09-29 | |||
| JPS60190350A | 1985-09-27 | |||
| JPS6183031A | 1986-04-26 |
Attorney, Agent or Firm:
Tadao Noma (1 outside)
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