METHOD OF MOLDING DUCT

PROBLEM TO BE SOLVED: To provide a method of molding a duct by which the welding strength between two sheets is improved.SOLUTION: A pair of thermoplastic foamed sheets (16, 16) in a molten state are arranged between a pair of split molds (13, 13). Forms (17, 17) positioned around the split molds (1...

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Bibliographic Details
Main Authors TANJI TADATOSHI, WASHIMI TAKEHIKO
Format Patent
LanguageEnglish
Published 29.03.2012
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:PROBLEM TO BE SOLVED: To provide a method of molding a duct by which the welding strength between two sheets is improved.SOLUTION: A pair of thermoplastic foamed sheets (16, 16) in a molten state are arranged between a pair of split molds (13, 13). Forms (17, 17) positioned around the split molds (13, 13) are advanced relatively to the split molds (13, 13) to be close contact with the thermoplastic foamed resin sheets (16, 16). Next, the thermoplastic foamed resin sheets (16, 16) are sucked to the cavities (14, 14) of a pair of the split molds (13, 13) by vacuum and the duct is molded by clamping a pair of the split molds (13, 13).
Bibliography:Application Number: JP20100206137