Title:
PRODUCTION OF FIBER REINFORCED THERMOPLASTIC RESIN MOLDED PRODUCT
Document Type and Number:
Japanese Patent JP2522145
Kind Code:
B2
Abstract:
PURPOSE: To obtain a hollow molded product having a bonded area whose surface is continuously smooth and excellent in the mechanical strength of the bonded area by receiving a plurality of partial materials in a mold in a mutually fitted state and heating them while applying internal pressure to the mold to integrally bond them.
CONSTITUTION: A back partial material 2 is fitted to the folded-back part 20 of a face partial material 1 in the opening part thereof. At this time, the width of the overlap part 6 of both materials 1, 2 is set to 10mm or more. In this state, the partial parts 1, 2 are set to a temporarily assembled state. The temporarily assembled partial materials are received in a mold 3 to be received in a vacuum heating device. The vacuum heating device is evacuated to reduce the pressure in the gap between the temporarily assembled partial materials and the mold 3 and a pressure medium such as nitrogen gas is introduced into a cover balloon 4 from a pressure device not only to apply internal pressure to the mold but also to heat the partial materials to a prescribed temp.
Inventors:
HYAMA KUNIO
FUKUSHIMA TOSHIHARU
FUKUSHIMA TOSHIHARU
Application Number:
JP5912293A
Publication Date:
August 07, 1996
Filing Date:
March 18, 1993
Export Citation:
Assignee:
YAMAHA CORP
International Classes:
B29C65/02; A63B53/04; B29C65/70; B29D22/00; B29K105/06; B29L22/00; (IPC1-7): B29C65/70; B29D22/00
Domestic Patent References:
| JP2245323A | ||||
| JP698953A | ||||
| JP475673A | ||||
| JP5720332A |
Attorney, Agent or Firm:
Masatake Shiga (2 outside)