Method and device for manufacturing and assembling hollow bodies of large-scale fiber filament-reinforced plastic composites
A composite material and fiber filament technology, which is applied in mechanical equipment, applications, household components, etc., can solve the problems of difficulty in determining the price and difficulty, and achieve the effect of easy delivery cost and quality assurance.
Active Publication Date: 2011-11-30
METSO OUTOTEC (FINLAND) OY
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Problems solved by technology
It also makes it difficult to determine prices in supply quotations because when quotations are made it is difficult or impossible to know the cost of local works at the assembly site
Method used
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[0042] figure 1 It is a conventional filament winding device for manufacturing large-scale cylindrical filament-reinforced plastic composite hollow bodies (such as tank shells, reactors, towers, pipes, chimneys, columns, etc., for shells in the chemical and metallurgical industries) 9. Schematic. The device comprises a rotatable mandrel 10 whose outer diameter corresponds to the inner diameter of the finally formed hollow body. The device is provided with a movable filament distributor 11 which feeds the filaments dipped in thermoplastic in a suitable shape and with a suitable thickness onto a rotating mandrel 10 and forms a suitable number of layers . The thermoplastic can be, for example, epoxy resin, polyester resin, vinyl ester resin or phenolic resin. The filament may be glass fiber filament or carbon fiber filament, and structurally it may be cut filament, roving, woven fabric or tuft.
[0043] The thickness of the casing 1 wrapping depends on the transport packaging...
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Abstract
In a method for manufacturing and assembling a large size filament-reinforced plastic composite hollow body, such as a tank, an endless casing (1) made by filament winding is cut open in the axial direction, so that there are formed two ends (2, 3) in the casing. The open-cut casing (1) is rolled up in order to form a transport package (4) with a diameter that is essentially smaller than the diameter of a finished hollow body. The transport package (4) is transported to the assembly site. On the assembly site, the transport package (4) is set in an assembly stand (5), the outer dimensions of which are adjusted to correspond to the inside diameter of the finished hollow body. The casing (1) is unrolled around the assembly stand (5) to the size of the finished hollow body, so that the casing ends (2, 3) are matched end- on-end. The ends (2, 3) of the casing (1) are fastened by a tight-fitting seam for forming an endless casing. Finally other required elements are attached to the casing for obtaining a finished hollow body. The arrangement includes a filament winding device (9) for manufacturing the casing (1) for the hollow body. In addition, the arrangement includes a cutting device (12) for cutting the casing (1) open in the axial direction, a rolling device (13) for rolling up the casing (1) to form a transport package (4), and an assembly stand (5), which is arranged to receive inside it the transport package (4) for unrolling the casing (1) on the assembly stand (5).
Description
technical field [0001] The invention relates to a method as defined in the preamble of claim 1 . The invention also relates to a device as defined in the preamble of claim 11 . Background technique [0002] In the prior art, methods and devices are known for producing and assembling large-scale hollow bodies of fibre-reinforced plastic composites, such as storage tanks or the like. The term "hollow body of large size" here refers to an elongated cylindrical object with a diameter of about several meters. [0003] The most advantageous and economical method for manufacturing hollow body shells is filament winding. In filament winding, the hollow body shell is produced in a filament winding device in which filaments immersed in thermoplastic are fed from a filament distributor (the filament distributor is axially Direction motion) is supplied and wound on a rotatable die (i.e. mandrel) so that the filaments are arranged in a helical form on top of the mandrel. By this tech...
Claims
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IPC IPC(8): B29C53/56B65H81/08F17C1/06
CPCB29C69/025B29C53/32B29C47/0023B29C69/001B29C47/02B29C2793/00B29L2031/7126B29C53/40B29C53/602B29C48/09B29C48/15B29C53/56B65H81/00F17C1/06
Inventor J·瓦尔诺D·布约尔克斯科戈
Owner METSO OUTOTEC (FINLAND) OY