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1.发明公开METHOD AND MOULD ASSEMBLY FOR ROTATION MOULDING A PIPE PART WITH A SPIGOT END, AS WELL AS PIPE PART OBTAINED THEREWITH 审中-公开程序和形式自转形成了一个管道的部分均与尖端和GOT管部
公开(公告)号：EP2367667A2
公开(公告)日：2011-09-28
申请号：EP09748311.9
申请日：2009-10-29
申请人： Wavin B.V.
发明人： VAN DIJK, Berend Jan , ELZINK, Willem Johan , MADSEN, Frede , ALFERINK, Franciscus Johannes Maria , JAGER, Harm Jantinus Marcel , BRÜMMER, Günter Bernhard
CPC分类号： E03F5/02 , B29C41/025 , B29C41/04 , B29C41/06 , B29C41/48 , B29L2023/00 , B29L2023/22 , E03F5/024 , E03F5/0401 , E03F5/041 , F16L11/111 , F16L11/15 , F16L25/0063
摘要： The invention relates to a method and a mould assembly for rotation moulding a pipe part (1) comprising a main body (2) and a spigot end (3), the spigot (3) end having at least one dedicated section (5) with an outer contour (6) that in use is to effect a close fit with an external part. At least during cool-off A support structure (8) is provided in the pipe part (1), at least during cool-off of said part, to keep the dedicated section (5) into contact with the mould (22) so as to have the outer contour (6) of the dedicated section (5) conform to the inner contour of the mould (22). The support structure may become part of the pipe part during moulding.
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2.发明公开PLASTIC DRAIN OR INSPECTION CHAMBER PORTION WITH HOLLOW-WALLED CIRCUMFERENTIAL WALL, AS WELL AS MOULD ASSEMBLY FOR THEREOF 有权KUNSTSTOFFABLFUSS-或检查室中HOHLWANDIGER范围和形式壁布置THEREFOR PART
公开(公告)号：EP2350401A2
公开(公告)日：2011-08-03
申请号：EP09812468.8
申请日：2009-10-29
申请人： Wavin B.V.
发明人： VAN DIJK, Berend Jan , JAGER, Harm Jantinus Marcel , BRÜMMER, Günter Bernhard , ELZINK, Willem Johan , MADSEN, Frede , ALFERINK, Franciscus Johannes Maria
CPC分类号： E03F5/02 , B29C41/025 , B29C41/04 , B29C41/06 , B29C41/48 , B29L2023/00 , B29L2023/22 , E03F5/024 , E03F5/0401 , E03F5/041 , F16L11/111 , F16L11/15 , F16L25/0063
摘要： The invention -relates to a drain or a portion of an inspection chamber, and a mould assembly for manufacturing thereof. The drain or the inspection chamber portion comprises a plastic circumferential wall, which circumferential wall, in the case of the drain, is preferably provided with openings for connection of the drain to one or more pipes. The drain or the inspection chamber portion can be manufactured by rotation moulding. The circumferential wall comprises a hollow-walled section provided with an internal wall and an external wall, wherein the internal wall and the external wall are locally abutted against each other for formation of reinforcements. These reinforcements are arranged such that they jointly span the entire hollow-walled section, seen in circumferential direction, yet without forming therewith one continuous abutment between the internal wall and the external wall.
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公开(公告)号：EP2350401B1
公开(公告)日：2018-07-11
申请号：EP09812468.8
申请日：2009-10-29
申请人： Wavin B.V.
发明人： VAN DIJK, Berend Jan , JAGER, Harm Jantinus Marcel , BRÜMMER, Günter Bernhard , ELZINK, Willem Johan , MADSEN, Frede , ALFERINK, Franciscus Johannes Maria
CPC分类号： E03F5/02 , B29C41/025 , B29C41/04 , B29C41/06 , B29C41/48 , B29L2023/00 , B29L2023/22 , E03F5/024 , E03F5/0401 , E03F5/041 , F16L11/111 , F16L11/15 , F16L25/0063
摘要： The invention -relates to a drain or a portion of an inspection chamber, and a mould assembly for manufacturing thereof. The drain or the inspection chamber portion comprises a plastic circumferential wall, which circumferential wall, in the case of the drain, is preferably provided with openings for connection of the drain to one or more pipes. The drain or the inspection chamber portion can be manufactured by rotation moulding. The circumferential wall comprises a hollow-walled section provided with an internal wall and an external wall, wherein the internal wall and the external wall are locally abutted against each other for formation of reinforcements. These reinforcements are arranged such that they jointly span the entire hollow-walled section, seen in circumferential direction, yet without forming therewith one continuous abutment between the internal wall and the external wall.
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