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公开(公告)号：EP1226027B1
公开(公告)日：2003-09-24
申请号：EP00950184.2
申请日：2000-07-28
申请人： Wellplast AB
CPC分类号： B29D99/001 , B29D24/00 , Y10T156/1025
摘要： Method and device for the manufacture of corrugated material, at least one first plane sheet (19; 20) and one second sheet (16) of plastic material arranged in wave shape being brought together for adhesion to each other and the wave-shaped sheet (16) running over core bars (17, 18). A portion of at least one sheet is heated at abutment against the core bars (17, 18) and the first sheet (19; 20) is brought to abutment against the second sheet (16) for welding the sheets (16; 19, 20) together. First members are arranged for feeding at least the first plane sheet and the second sheet of plastic material running over core bars (17, 18) and second members are arranged for bringing together and adhering the sheets. Heating members (28) are arranged for transferring heat to a portion of at least one sheet (16; 19, 20) abutting against the core bars and including plastic material. Furthermore, guide members (17, 18; 21; 22) are arranged for bringing together the first and the second sheet in an abutment portion and for welding in the portion heated by the heating members (28).
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公开(公告)号：EP1565308A1
公开(公告)日：2005-08-24
申请号：EP03776104.6
申请日：2003-11-11
申请人： Wellplast AB
CPC分类号： B32B3/28 , B29C53/26 , B29D24/008 , B32B7/045 , B32B27/10 , B32B27/20 , B32B27/32 , B32B2317/127 , B32B2323/04 , B32B2323/10 , B32B2553/00 , B32B2607/00 , E04C2/20 , E04C2/322 , E04C2/3405 , E04C2002/3455 , E04C2002/3461 , E04C2002/3466 , Y10T428/24479 , Y10T428/24694
摘要： The present invention relates to a corrugated product (10), comprising at least one first substantially plane sheet (11) at least one second sheet (12) arranged in wave shape, wherein the first sheet is joined with the second sheet in joining areas (15), forming a framework shape having the joining areas arranged at tops (14) of the second sheet, wherein the tops are formed by thinner portions (18) of the second sheet and wherein the joining areas substantially include the entire thinner portions of the second sheet.
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公开(公告)号：EP1226027A1
公开(公告)日：2002-07-31
申请号：EP00950184.2
申请日：2000-07-28
申请人： Wellplast AB
CPC分类号： B29D99/001 , B29D24/00 , Y10T156/1025
摘要： Method and device for the manufacture of corrugated material, at least one first plane sheet (19; 20) and one second sheet (16) of plastic material arranged in wave shape being brought together for adhesion to each other and the wave-shaped sheet (16) running over core bars (17, 18). A portion of at least one sheet is heated at abutment against the core bars (17, 18) and the first sheet (19; 20) is brought to abutment against the second sheet (16) for welding the sheets (16; 19, 20) together. First members are arranged for feeding at least the first plane sheet and the second sheet of plastic material running over core bars (17, 18) and second members are arranged for bringing together and adhering the sheets. Heating members (28) are arranged for transferring heat to a portion of at least one sheet (16; 19, 20) abutting against the core bars and including plastic material. Furthermore, guide members (17, 18; 21; 22) are arranged for bringing together the first and the second sheet in an abutment portion and for welding in the portion heated by the heating members (28).
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