MANUFACTURING METHOD AND MANUFACTURING APPARATUS FOR HOLLOW BODY
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United States of America Patent
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Issued Date -
Oct 20, 2016
app pub date -
Nov 24, 2014
filing date -
Nov 24, 2014
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Abstract
A sheet body extruded from an extruding die is mounted on conveyers immediately and thereby drawdown and the like is inhibited or prevented to suppress deflection in the thickness, length and the like of the sheet body. Further, the conveyers include a heater inside thereof and thereby reduction of the temperature of the sheet body can be inhibited or prevented by heating by means of the heater. As a result, productivity of the hollow body is improved.
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