CN105805533A

CN105805533A - Member, method and device for manufacturing the same

Info

Publication number: CN105805533A
Application number: CN201510549659.7A
Authority: CN
Inventors: 丹尼尔·罗思富斯
Original assignee: Witzenmann Metal Products Jiangyin Co Ltd
Current assignee: Witzenmann Metal Products Jiangyin Co Ltd
Priority date: 2015-01-20
Filing date: 2015-08-31
Publication date: 2016-07-27
Also published as: DE102015100774A1

Abstract

The invention provides a method for manufacturing a molded tubular member through a fibrous composite material under a condition of adopting a blank (1,1') constituted by a fibrous composite material ; the fibrous composite material comprises a reinforced fiber (3,3',3'') and a base body material which is embedded and surrounds the reinforced fiber (3,3',3''); the blank (1,1') or takes on a hollowed cylinder shape including a first opening (1a), a second opening (1b) and an inner cavity; the method for manufacturing the member comprises steps of applying internal pressure to the inner cavity of the blank (1,1'), and enabling the blank (1,1') to be molded to be a tubular member. The invention also provides a device for manufacturing the tubular member, a corresponding tubular member and the applications of the tubular member.

Description

Component and manufacturing method and apparatus thereof

Technical field

The present invention relates to the method for manufacture molding tubular element according to claim 1, the device manufacturing molding tubular element according to claim 32, the tubular element according to claim 37 and its possible purposes according to claim 46.

Background technology

The tubular element of molding as have at least one corrugated portion and end bright finish cylindricality connecting portion radiation fins so far manufactured by metal, for instance by rustless steel, bronze metal or metal alloy manufacture.But it is also known that manufactured radiation fins by Carbon Fiber Reinforced Plastics (CFK), this completes according to RTM method.At this, preforming geometry perfusion liquid resin (matrix material) being made up of (reinforcement) fiber is given in abbreviation " RTM " representative " resin transfer moulding " and description in Guan Bi mould.

This known method of following A brief introduction and inherent defect thereof:

When manufacturing radiation fins according to RTM method, first manufactured fiber hose with knotwork by reinforcing fibre such as carbon fiber.This fiber hose must at least have radiation fins to be manufactured maximum gauge and subsequently quilt cover be layed onto on core body, core body must have end face and the net shape of radiation fins.Process the tubular element by prefabricated carbon fiber by shirred and be put in lower compacting tool set.Lower compacting tool set must have again tubular element profile accurately.Then, lay half compacting tool set, be clamped in lower mold half by press and sealed.Core body is accurately in place between two parties relative to the outer half module (part as upper and lower compacting tool set) of the two by two supports together with fiber.Then, by producing vacuum in pump space between upper die and lower die and core body.Resin liquid is pressed in mould by running channel and infiltrates this tubular fabric member.Then, resin matrix solidifies (thermosets) under pressure and temperature affects.Open mould after solidification, and tubular element can connect core body and be removed from mould.This core body must be dissolved before the demoulding or melts and be removed.The material being usually used in solvable core body is polystyrene, bonding sand, wax or special low-melting point metal alloy.This core body loses after manufacturing process.This core body also can be made up of many ingredients related to thisly, for instance ingredient and solvable outer ingredient in reusable solid-state, here, the latter limits radiation fins profile.Once tubular element is demolded and breaks away from core body, then can start secondary operations (such as removing core body remaining part, trimming, polishing and japanning).

Now disadvantageously must using the press of complexity and costliness, here, bipartite mould is especially proved to be disadvantageous.The use of core body also also has a negative impact in manufacturing complexity and ultimate cost.Generally, the method include many slowly can the procedure of processing of voltinism difference automatically, for instance weaven goods is shirred, the core body demoulding and the removal of core body remaining part.At this, the method is dumb in shape of product, because each tubular element shape needs the expensive mould of oneself.Scolded as disadvantageously about tubular element (radiation fins) to be manufactured, can not manufacturing the harp shape (having radial side in trough district recessed) of so-called radiation fins ripple, this harp shape allows maximum length accumulation and and then shorter tubular element.Finally, required weaven goods fully runs through and obtains only by sky high cost under shape of product complex situations, this quality adversely affecting the control of accurate temperature, producible vacuum etc..Here, have many running channels but still complexity mould is especially provided that to be remedied.

Summary of the invention

The present invention is based on following task, it is provided that the method and apparatus being manufactured the tubular element of molding by fibrous composite, can walk around or avoid the aforesaid drawbacks in technology controlling and process and processing cost whereby at least partly.It is also object of the invention to the corresponding cheap tubular element manufactured, its performance with improvement and favourable application possibility.

This task by by a kind of feature with claim 1, the method for tubular element that manufactured molding by fibrous composite completes.

This task also by by a kind of feature with claim 32, the device of tubular element that manufactured molding by fibrous composite completes.

It addition, this task will be completed by the tubular element of a kind of feature with claim 37.

Claim 46 defines the possible purposes of the tubular element of the present invention.

The method according to the invention for being manufactured the tubular element of molding under using at least one blank situation being made up of fibrous composite by fibrous composite.This blank has reinforcing fibre and is embedded into and preferably surrounds the matrix material of this reinforcing fibre.It addition, this blank has or presents the hollow cylinder shape including the first opening, the second opening and inner chamber.

Within the scope of this specification, term " is embedded into " and comprises this matrix material itself and be made up of fibrous material such as thermoplastic fiber at least partly, and this fibrous material mixes with real reinforcing fibre (as being made up of carbon).

The method of the present invention comprises the following steps:

A) inner chamber of blank is applied internal pressure；

B) blank forming is become this tubular element.

Being different from prior art, according to the present invention, adopt the internally pressuring shaping method learned manufacturing from common wavy metal set just as itself to manufacture the tubular element of molding, at this, tubular element can be radiation fins especially but not limited to ground.At this, namely the blank being made up of fibrous composite cavity region within it bears from inner side intrinsic pressure, thus make blank forming become this tubular element.In the case, it be simply many and can the technical process of good automatization, it especially allows to manufacture many tubular element shapes in a mould.

This blank need not directly contact and form intrinsic pressure medium.Especially indirect method known per se can also be adopted, for instance elastomer method, bubbling flexible pipe method or membrane process.

" tubular element manufacture " according to the present invention does not need core body, and all mould parts all can be used in principle again.Proposed method also allows for the CFK semi-finished product manufacturing the radiation fins with harp shape and allowing processing favourable.

Also attendant advantages is had for product (tubular element) to be manufactured, especially less expensive manufacture, by the activeness of the obtainable short length of harp shape or higher, obtainable bigger wave height and steeper ripple side and the probability providing comprehensive various material zygosity, also will be described below.

First improvement project of the inventive method defines, and adopts the blank being made up of the fibrous composite strengthened at least partially by carbon fiber, thermoplastic fiber and/or the fiber that is made up of analog material.

Additionally it can be stated that this blank was placed in suitable mould before step a).

And it can be stated that before the step a) these openings of this blank be sealed shut by basic pressure.

Another improvement project regulation of the inventive method, the molding in step b) at least carries out at the multiple modeling structures partly abutting against the especially described mould of external mold.

Now can also specifying, described modeling structure surrounds this blank respectively on a large scale and especially all sidedly and is spaced with a size especially same size respectively in the axial direction.

Related to this, may further specify that in method, blank is at least formed in step b) in space between described modeling structure, the local.In this way, it is particularly possible to form the shape in advance of radiation fins ripple struction.

One particularly advantageous improvement project regulation of the inventive method, several at least within described modeling structures are mutually shifted close in the axial direction, especially under reducing above-mentioned dimensional conditions and/or reduce in the situation of above-mentioned space.In this way, it is possible to improve radiation fins ripple struction.

After step b), it is possible to open mould and be taken out the tubular element of molding.

As also described above, it can be advantageous to the preferably prefabricated pipe fitting being made up of fibrous composite such as CFK is used as this blank.

Related to this it is proved to it is very advantageous that adopt the moulded parts comprising thermoplastic matrix materials.This matrix material can (be not limited to) selected from following group, and this group comprises polyether-ether-ketone, polyether-ketone, polybenzimidazoles, polyamide, polyphenylene sulfide, polysulfones, polyether sulfone, Polyetherimide, politef.

Having following probability, using following pipe fitting as blank, this pipe fitting is manufactured by the prefabricated geometry being made up of reinforcing fibre with matrix material perfusion according to RTM method.Or having following probability, adopt following pipe fitting as blank, it manufactures under adopting the pre-preg reinforcing fibre semi-finished product situation in prepreg form.The blank substituted manufactures feasible pattern and is winding method, pultrusion processes or draws and twine the method for forming.

Want at this it is considered that, compared with during with complicated according to RTM method manufacture molding tubular element, favorably many and be less complicated to manufacture simple blank tubular form.Do not need solvable core material particularly in when manufacturing pipe according to RTM method, thus can repeatedly use core body.Large batch of elongate tube members can be manufactured accordingly, because now it is rod member, need not shirred processing at this.

As already identified above, pipe also can be manufactured by pre-impregnated fiber, and thus one, save the perfusion of prefibers completely.Can also the pipe fitting of pultrusion used as discussed above as blank.This pipe fitting manufactures and therefore generally comprises the reinforcing fibre that unidirectional (longitudinally) is arranged in Continuous maching process.

In order to manufacture tubular element, described pipe is placed in special radiation fins press, also will be described in detail below this.Now this pipe fitting (blank) is kept by radially outer template (modeling structure).

Described template is preferably in accurately mutually coordinated preferably identical be spaced.

Especially specifying in the particularly advantageous development of the inventive method, this pipe fitting or blank are namely front heated at real forming step b) before processing, thus matrix material is converted to soft condition and/or flowable state.

Then, it is possible to carry out above-mentioned intrinsic pressure applying.Ground related to this is it can be stated that with the fluid media (medium) that have employed preheating in then adjacent described intrinsic pressure step a), especially gas such as air or liquid especially water or oil, perhaps also have suitable additive (additive).Thus one, it is possible to impose on pipe fitting (blank) with shape in advance, here, always between two templates (modeling structure), radially drum is convex for this pipe fitting.

As also described above; shape the template (modeling structure) of radially arrangement can being made after forming (drum convex space between described modeling structure in) axially to draw close or axially close to each other in advance, this causes reducing of the size between described modeling structure or distance.Thereby, it is possible to described in making in advance the drum of shape convex or protuberance be deformed into final radiation fins ripple.

Can be related to this in another development of the inventive method specify, the tubular element of such molding is cooled or makes it turn cold.Subsequently, it can be removed from described mould.Cooling causes the solidification of presumable thermoplastic matrix materials.

Can specify that the such blank of employing, this blank also includes the plastic optical fibre being made up of the thermoplastic being especially selected from group above-mentioned in addition except reinforcing fibre, and it constitutes described thermoplastic matrix materials at least in proportion.After step b), thermoplastic and especially relevant fiber can be melted and then continue as described above the tubular element processing molding.

Especially for giving the tubular element of the molding harp shape repeatedly to mention, one particularly advantageous improvement project regulation of the inventive method, this tubular element is reheated, thus this thermoplastic matrix materials is converted to again soft condition and/or flowable state, this tubular element is had the recessed ripple of radial side (harp shape) by axial upset to provide subsequently.

Have been described with there is the following probability manufacturing tubular element according to the present invention, realize comprehensive compound of fiber reinforced materials and other material at this.For this, of the inventive method most preferably improvement project it further provides for, and except this blank, additionally uses the internal layer being diametrically disposed in blank and/or the outer layer being diametrically disposed at outside blank and by common molding.When the blank adopting at least two to be arranged concentrically, it is possible to additionally or alternatively specify to add intermediate layer and common molding between which.Above-mentioned internal layer, outer layer or intermediate layer can be the layers that metal, metal alloy or other pressure-tight and/or non-proliferation material are constituted.

In principle it is within the scope of the invention that form the layer of random order.Now such as can also be close to and arrange two blanks with different fiber content, fibre orientation, matrix material, wall thickness or other different performance.Although being provided with internal layer, but such as can abandon arranging outer layer, otherwise or.In this way, it is possible to obtain almost arbitrary tubular element cross-sectional structure.Multiple intermediate layers also can directly overlap.

A replacement scheme regulation in the improvement of the inventive method, this blank is by arranging that the semi-finished product being made up of reinforcing fibre or multiple semi-finished product provide, and described reinforcing fibre is pre-impregnated matrix material.In other words, blank is by the semi-finished product of pre-preg and so-called prepreg manufacture.

One corresponding improvement project regulation of the inventive method, adopts the pre-impregnated fiber semi-finished product containing the matrix being made up of thermosets, and namely reinforcing fibre is soaked with thermo set matrix material in advance.This matrix material now not yet solidifies (i.e. thickness), and here, prepreg generally deposits triennium and can be processed at about-18 DEG C temperature.Can specify that within the scope of the present invention, thermo set matrix material (is not limited to) selected from following group, and this group comprises epoxy resin, unsaturated polyester resin, vinyl ester resin, phenol formaldehyde resin, diallyl phthalate resin, methacrylic resin, polyurethane, amino resins, melamine resin, urea resin.

This be can specify that, the reinforcing fibre being made up of the thermoplastic being especially selected from above-mentioned group in addition is adopted at least pari passu for the reinforcing fibre being arranged in this reinforcedathermoset matrices, at this, the complete component of molding is temporarily heated above the glass transition temperature of thermoplastic and continues to be processed subsequently, particularly by be removed from the molds with thermosetting plastics when heating such as being subsequently cured in stove.Because being heated beyond glass transition temperature, thus the component not yet solidified to be shape metastable.Therefore, the time in mould can shorten and reach big manufacturing batch.

Related to this, advantageous modification regulation of the inventive method, these semi-finished product be arranged on as internal layer, on the interior pipe fitting that is preferably made up of the material of metal, metal alloy or other pressure-tight or non-proliferation, to provide this blank.

Alternatively, may also dictate that related to thisly, be arranged around as the outer tube member being made up of the material of metal, metal alloy or other pressure-tight or non-proliferation outer layer, best at semi-finished product.Multiple intermediate layers can direct arranged superposed.

May further specify that, when adopting at least two blank, at least one intermediate layer being preferably made up of the material of metal, metal alloy or other pressure-tight and/or non-proliferation is set between these blanks.

Described internal layer and/or outer layer and/or intermediate layer be molding simultaneously subsequently.

In order to manufacture this blank, it is possible to adopt pre-impregnated fiber flexible pipe or the pre-preg continuous fiber of flat pre-impregnated fiber pad or braiding as semi-finished product.Especially can use flat prepreg, its include unidirectional setting namely preferably in the longitudinal direction of tubular element described arrangement or to be manufactured arrange fiber.But the use especially when adopting fiber hose, it would however also be possible to employ have the reinforcing fibre of the angle of weave of regulation between the fibers, wherein, having the reinforcing fibre of predetermined angular between packet reinforcing fibre is not limited to the use of fiber hose.

The pipe fitting as internal layer can be wound around in appropriate manner when adopting pre-preg continuous fiber to manufacture blank.

After in this way by the blank that pre-preg semi-finished product manufacture is suitable, this compositions namely at least this internal layer perhaps also have outer layer and produced blank to be placed in special radiation fins press or in other suitable mould.About further procedure, however, it would be possible to referring to embodiment above-mentioned in addition, except thermoplastic.

Especially may further specify that, the step a) that pressure applies adopts fluid media (medium), it will be preferred that gas especially air or liquid especially water or oil.

But when using thermo set matrix material, preheat this fluid media (medium) related to thisly and be essentially nonsensical or unwanted.

By applying internal pressure, imposing on pipe or blank with shape in advance, here, this pipe or blank radially can rouse convex respectively between two templates (modeling structure).After shape is formed in advance for this, the template (modeling structure) being radially arranged can axially be closed up, so that the protuberance of described shape in advance (drum is convex) is deformed into final radiation fins ripple.Upsetting pressure afterwards can be passed through again and give ripple with harp shape, here, need not heat in advance again.On the contrary, in the development of the inventive method, the namely such as final radiation fins of the tubular element after molding is cured by heating under stress.This can complete at about 60 DEG C to about 180 DEG C temperature.Pressure preferably in-1 bar between about+7 bars, wherein, can at similar means such as component negative pressure sacs used under negative pressure condition.

Repeatedly indicate, the improvement project of the inventive method preferably employs following blank, wherein, reinforcing fibre " with the longitudinal direction of this tubular element and blank itself relatively " orientation at a certain angle.Following fibre orientation is particularly advantageous, but is not limited to this: to be used for obtaining significantly high bending strength relative to the unidirectional fibre of about the 0 of the longitudinal axis ° of angle trend in the longitudinal direction of tubular element or pipe.With about 90 ° namely in the fiber orientation radially of tubular element or pipe for obtaining the significantly high resistance to compression stability relative to radial load.The fiber orientation of about ± 45 ° is for obtaining the high rigidity relative to torsion loads.Obviously it is within the scope of the invention that, by using multilamellar to have the fiber reinforced materials of different orientation, also produce the combining form of above-mentioned fiber orientation, and correspondingly its different advantages be fused in a tubular element.

Another aspect of the present invention relates to a kind of device for the tubular element by fibrous composite manufacture molding under adopting at least one blank situation being made up of fibrous composite, this fibrous composite comprises reinforcing fibre and is embedded into and preferably surrounds the matrix material of reinforcing fibre, and this blank has or presents the open tubular column shape including the first opening, the second opening and inner chamber.At this, this device is configured to a) inner chamber of blank be applied internal pressure；With b) to make blank forming be this tubular element, and having suitable mould for this, blank is placed in this mould and blank carrys out molding against this mould.The present invention also specify, this device is configured to use the blank that is made up of the fibrous composite comprising thermoplastic matrix materials and correspondingly have the mechanism for heating blank and/or for heating the mechanism being used to execute stressed fluid media (medium), this fluid media (medium) preferred gas especially air or liquid especially water or oil；Or this device is configured to use the blank being made up of the fibrous composite comprising thermo set matrix material and correspondingly have the mechanism for being carried out the tubular element after curing molding by heating under stress, under pressure preferably in the temperature of about 60 DEG C to about 180 DEG C and-1 bar extremely about+7 bars, here, can at similar means such as this component negative pressure sacs used under negative pressure condition.

Utilize the device being constructed so as to, it is possible to or manufactured tubular element by the fibrous composite comprising thermoplastic matrix materials, or under adopting the blank situation being made up of the fibrous composite comprising thermo set matrix material, manufacture tubular element.

Can advantageously providing in the improvement project of apparatus of the present invention, this device also has the mechanism for cooling down and/or reheat the complete tubular element of molding, especially when tubular element is manufactured by the fibrous composite comprising thermoplastic matrix materials.

Additionally, assembly of the invention can have multiple modeling structure in corresponding improvement project in die region, and described modeling structure surrounds this blank respectively on a large scale and especially all sidedly and is spaced with the size that size is especially identical respectively in the axial direction.Described modeling structure is preferably the template also as described above of radiation fins press.

Correspondingly, apparatus of the present invention feature in being correspondingly improved is, this blank is at least formed in space between described modeling structure (template), the local.

Several at least within described modeling structures (template) can be close to each other in the axial direction, and this is likely to reducing of the reduction along with described yardstick and/or described space.In this way, shape ideally produces the radiation fins ripple of the tubular element constituted in radiation fins form.

According on the other hand, the present invention relates to a kind of tubular element that can be made according to the method for the present invention.The feature of such tubular element of the present invention is, it manufactures under adopting at least one blank situation being made up of fibrous composite, this fibrous composite comprises reinforcing fibre and be embedded into and preferably surround the matrix material of this reinforcing fibre, and this blank intrinsic pressure is formed as described tubular element by blank inner chamber is imposed.

Namely, it is different from the known tubular element being made up of fibrous composite, first do not manufactured pre-form shape and subsequently with liquid resin perfusion in Guan Bi mould by fiber, but utilize internally pressuring shaping method to be directly formed to described tubular element according to mode known per se the blank being made up of fibrous composite.

According to the first improvement project, the feature of tubular element of the present invention can be in that, adopt a pipe fitting as blank, this pipe fitting according to RTM method by give be made up of reinforcing fibre prefabricated geometry perfusion matrix material or adopt in prepreg form pre-preg reinforcing fibre semi-finished product situation under manufacture.That is, being different from known tubular element, not by injecting the tubular element after matrix material manufactures molding, but only manufacture this tubular blank, it is formed as described tubular element subsequently.This is repeatedly explained.

The feature of this tubular element can also be in that, radially arranges internal layer in fibrous composite and/or radially arranges outer layer in fibrous composite other places.When adopting at least two blank, at least one intermediate layer can also be set between the two-layer being made up of fibrous composite, at this, described internal layer and outer layer or intermediate layer are all sealed by metal, metal alloy or other pressure and/or the material of non-proliferation is constituted.

Reinforcing fibre can be carbon fiber or the fiber being made up of other similar material.

Reinforcing fibre can be relevant to the longitudinal direction of tubular element but be not limited to this place and substantially carry out orientation with the angle of about 0 ° or about 90 ° or about ± 45 °.Have been described that relevant advantage and performance.When adopting multiple blank, reinforcing fibre can also be respectively relative to tubular element longitudinal axis and carry out orientation at different angles.In this way, tubular element can on purpose possess the performance of regulation.

In the development that another are different, the feature of tubular element of the present invention can be in that, this matrix material is thermosets.Or it can be stated that this matrix material is thermosetting plastics.Invention have been described related to thisly suitable matrix material.

It addition, may further specify that in the tubular element of the present invention, the wall thickness of fibrous composite is at about 0.2mm with about between 5mm, it is preferable that at 0.5mm with about between 2mm.

The tubular element of the present invention can be constituted with radiation fins form, its have just what a setback region and at least one in the bonding pad of the preferred bright finish cylindricality of end, this is specified repeatedly.

Can specify in a particularly preferred improvement project in tubular element of the present invention, it is recessed that at least one ripple has radial side in its setback region in the district of ripple side, and this side is recessed to be also referred to as harp shape and is advantageous for for the activeness of tubular element.Because harp shape, it is possible to adopt the tubular element that length ratio is shorter when adopting without normal " ripple " that radial side is recessed.

Another aspect of the present invention relates to the purposes of the tubular element of the present invention.Such tubular element is particularly suitable as the fastener between duct portion, as media guide, as separation member, as spring part, as sealing member or as compensating part.

Here, to again introduce possible matrix material and be possibly used for the material in outer layer, internal layer and/or intermediate layer.

As possible matrix material, however, it would be possible to adopt all common thermoplastics.The fiber reinforced plastics comprising thermoplastic matrix can molding or welding afterwards.After matrix cools down, the fiber reinforced plastics comprising thermoplastic matrix is standby.But they soften at elevated temperature and its creep properties along with fiber content increase and reduce.Such as plastics as above are suitable as with thermoplastic at high temperature in addition.

Generally use together with reinforcedathermoset matrices from the half-finished fiber reinforced plastics of pre-impregnated fiber and can cross-link or not redeformation after solidification at matrix.But they have big temperature and use scope.This is particularly suited for thermmohardening system, and it is at high temperature hardened.The temperature applications limit is determined by glass transition temperature situation.Fiber reinforced plastics containing reinforcedathermoset matrices has maximum intensity mostly.Related to this, resin already described above is best used as matrix material.

When adopting thermosetting prepreg, these semi-finished product have the outer layer, the intermediate layer and/or that internal layer is perhaps likely necessary or favourable that have explained.These extra plays also can stay after fabrication in product or on.But also having following possibility, described extra play (outer layer or internal layer) is removed again the composite members of final molding.When described layer is stayed on product, they can be considered for limiting the properties of product of extension.Now refer in particular to diffusion resistance, to the toleration of some medium or UV protective.Following description is highly adapted for use in the material in the scope of the invention relatively.

Preferably employ metal or metal alloy.But the present invention is not limited to such material, thus also can adopt suitable nonmetallic materials in some cases.

About metal, pointing out initially that non-ferrous metal, especially aluminum or aluminum alloy and copper alloy and acid bronze alloy belong to this, for instance: bronze (2.102), corronil (2.0082), pyrite/gunmetal (2.0250,2.0321,2.0402) or red brass.Furthermore, it is possible to adopt nickel or nickel-base alloy, such as hardenable nickel alloy (lnconel_718, lnconel_X-750), nichrome (2.4610,2.4816,2.4819,2.4856,2.4858) or monel (2.4360).In non-ferrous metal situation, also indicate that tantalum and tantalum alloy or titanium and titanium alloy.

Other available metal comprises steel and steel alloy, for instance general structural steel (1.0038), cast iron (such as ferrite cast iron or austenitic cast iron) or rustless steel.The latter especially includes hardenable steel (AM350), austenitic steel (1.4301,1.4306,1.4404,1.4435,1.4529,1.4539,1.4541,1.4571), dual phase steel (austenite/ferrite) (1.4462), ferritic steel (1.4509,1.4511,1.4512), heat resisting steel (1.4828,1.4876), high-strength heat-resistant steel (1.4919,1.4948,1.4958) and heat-resisting non-alloyed steel (1.0345,1.0425,1.0481,1.5415,1.7333).

Already mentioned multiple structure is particularly useful for improving the structure movement just as also using in common wavy metal set.Now, this fibrous composite or can directly multilamellar constitute, or it is divided into multilamellar by separate layer.As separate layer, it is further contemplated that the material mentioned above with respect to intermediate layer in addition.

From below in conjunction with other performance and the advantage that obtain the present invention the accompanying drawing description to embodiment.

Accompanying drawing explanation

Fig. 1 illustrates the blank being made up of the fibrous composite comprising especially thermoplastic matrix, the blank in manufacturing just as the present invention that can be used for tubular element of the present invention.

Fig. 2 illustrates by the blank comprising the prepreg manufacture that reinforcedathermoset matrices is constituted together with internal layer and outer layer, just as the blank that the present invention that can be used for tubular element of the present invention manufactures.

Fig. 3 is at component a)-c) in illustrated tubular element of the present invention the present invention manufacture in possible method step.

Fig. 4 illustrates the partial, longitudinal cross-sectional of first invention tubular element.

Fig. 5 illustrates the partial, longitudinal cross-sectional of the second tubular element of the present invention.

Fig. 6 illustrates the possible cross section of tubular element of the present invention.

Fig. 7 illustrates the possible cross section of another tubular element of the present invention.And

Fig. 8 illustrates the possible cross section of another tubular element of the present invention.

Detailed description of the invention

Fig. 1 illustrates blank at accompanying drawing labelling 1 place, and it can be used in according in the method for the tubular element being manufactured molding by fibrous composite of the present invention.Blank 1 comprises reinforcing fibre, and it is embedded in matrix material, and this matrix material is embedded into and preferably surrounds this reinforcing fibre.Described matrix material is illustrated at accompanying drawing labelling 2 place in FIG.Especially can be carbon fiber forms reinforcing fibre in accompanying drawing labelling 3,3' and 3, " place is illustrated.Hereinafter also will be described.Matrix material 2 itself can be made up of fibrous material at least partly or comprise such fibrous material, for instance thermoplastic fiber.

Blank 1 totally has open tubular column shape, and it includes the first opening 1a and (being blocked) second opening 1b.Inner chamber 1c is formed in blank 1 open tubular column in other words.

Reinforcing fibre with accompanying drawing labelling 3 has first group of reinforcing fibre 3a being arranged parallel to and second group of reinforcing fibre 3b being arranged parallel to.The reinforcing fibre 3a of one of which and the reinforcing fibre 3b of another group is in limited angle downcrossings, and here, the present invention is not limited to the angle value illustrated at this.It is provided only with one group of reinforcing fibre 3c, described reinforcing fibre 3c (blank is longitudinally) axially together at accompanying drawing labelling 3' place and carrys out orientation.Then, this blank such as can be manufactured by pultrusion processes.

At accompanying drawing labelling 3, " place, described reinforcing fibre 3d is along blank circumference (i.e. radial direction) orientation.

Certain blank advantageously only find one of them fibre orientation 3,3', 3 ", although in principle can fibre orientation in any combination.

Blank 1 can be a part for prefabricated CFK pipe, and this pipe is such as made according to known RTM technique, just as being expressly recited before.Or, blank 1 can be manufactured by pre-impregnated fiber, thus saves the perfusion of preforming fiber shape completely.

Blank 1 as shown in Figure 1 is particularly suited for above-mentioned " the thermoplasticity modification " of the inventive method.There are certainly following probability: before the forming by blank 1 and multiple layers (base, internal layer, outer layer, intermediate layer) combination, with certain properties of product that this has been made an explanation by acquisition.

Fig. 2 illustrates that it is used to the method for the present invention with the blank 1' that alternative manufactures, and here, Fig. 2 is the additional internal layer 4 illustrated in pipe fitting form and the outer layer 5 in another pipe fitting form also.Generally, it is shown that these layer completely overlapped；Selecting separated view here is to be able to illustrate all of layer and be arranged opposite to each other.

The feature of view according to Fig. 2 and embodiment is only discussed in detail at this.

Blank 1' is manufactured by the pre-preg semi-finished product (prepreg) containing reinforcedathermoset matrices, and it is applied on internal layer 4.For this, it is applicable to above-mentioned " the thermosetting modification " of the inventive method.Fig. 2 citing illustrates the use of flat prepreg, and this flat prepreg has the fiber arranged at a certain angle relative to pipe axle.Described prepreg is illustrated (the dot-dash dotted line institute's frame region referring in Fig. 2) at accompanying drawing labelling P1, P2 and P3 place by symbol in fig. 2.Prepreg P1 comprises reinforcing fibre 3, and prepreg P2 comprises reinforcing fibre 3', and prepreg P3 comprises reinforcing fibre 3 " (referring to Fig. 1 and affiliated explanation).Or, in order to manufacture blank 1', it is possible to adopt the fiber hose of the reinforcing fibre angle of weave with regulation.Another alternative is, winds (tubular) internal layer 4 with the continuous fiber of pre-preg.

Genuine s known as technical staff, the view of the prepreg P1-P3 in Fig. 2 is symbolistic, generally, simply forms this blank 1' with a kind of prepreg comprehensively.But, adopt different types of prepreg to manufacture blank V also within the scope of the present invention, here, Fig. 2 is only explicitly illustrated several random probability.

Internal layer 4 arranges with acting on or lays the bottom of prepreg P1-P3.Subsequently, blank 1' can have shown optional outer layer 5 (having made introduction).Other blank being similar to 1' is set and other (centre) layer (not shown) is also feasible.

Fig. 3 is according to component a)-c) some steps when performing the inventive method for manufacturing tubular element of the present invention are described.

In Fig. 3 a), again show a blank at accompanying drawing labelling 1,1' place, be not further described being likely to the internal layer of setting, outer layer and/or intermediate layer at this.Blank 1,1' are placed in suitable mould, and this mould indicates with accompanying drawing labelling 6 at this generally.Mould 6 is the ingredient of apparatus of the present invention, and apparatus of the present invention are for manufacturing by the tubular element of fibrous composite molding, and this device overall by reference numeral 7 indicates.Mould 6 is used for putting blank 1,1', and wherein, this blank 1,1' can, against mould 6 molding, be now to this is introduced in detail.

Device 7 includes the mechanism (see Fig. 1) applied internal pressure to the inner chamber 1c of blank 1,1' for this, and this mechanism is illustrated at accompanying drawing labelling 7a place in Fig. 3 b).It addition, device 7 includes the mechanism for heating blank, it is in being used to execute the mechanism form of stressed fluid media (medium) (empty gas and water or oil) for heating.This mechanism is at component 3b) in accompanying drawing labelling 7b place be illustrated.It addition, device 7 includes the mechanism sealing the first opening 1a and the second opening 1b (Fig. 1) that close blank for pressure, in order to by mechanism 7a, blank can be applied molding from inner side intrinsic pressure.Should (closing) mechanism at component 3a)-3c) and accompanying drawing labelling 7c place be illustrated.

It addition, device 7 includes multiple modeling structure in mould 6 region, at component 3a)-3b) in only with accompanying drawing labelling 7d indicate in these modeling structures some several.At this, that draw with hacures and that unused hacures draw modeling structure 7d represents following its each position that also will be described.

Finally, at component 3c) in also show the mechanism of the tubular element heating and/or cooling down this blank or molding for (again) at accompanying drawing labelling 7e place, and accompanying drawing labelling 7f illustrates for by heating the mechanism solidifying the complete blank of molding or tubular element under stress.

At component 3b) and 3c) in, accompanying drawing labelling 8 represents the tubular element of the present invention that (soon) molding is complete respectively.The tubular element of the present invention is radiation fins shape.

The device 7 that structure is made description before works as follows:

First, according to Fig. 3 a), blank 1,1' are placed in device 7 mould 6 in other words.By described mechanism 7c, pressure is hermetically sealed on the opening on blank 1,1' two ends, and this is represented by arrow I in Fig. 3 a).The some modeling structure 7d constituted with template form of mould 6 radially move towards, and this is illustrated by arrow II symbol, until they abut to blank 1,1' from outside respectively comprehensively.This state illustrates with hacures relatively with modeling structure 7d in Fig. 3 a).

Subsequently, according to Fig. 3 b), this blank is subjected to intrinsic pressure p from inner side, and this completes by corresponding mechanism 7a.When blank is the blank with thermoplastic matrix, mechanism 7b is used for heated pressure medium.In this way, occur in that as shown in the figure in this blank radially convex respective voids (gap) between modeling structure 7d of drum.Arrow III represents the axially servo-actuated of mould 6 or modeling structure 7d, and here, the distance size (referring to Fig. 3 a) between modeling structure 7d is reduced, and the amplitude in described gap accordingly is reduced.This way is disclosed in wavy metal set manufacture.

At the end of the method step shown in Fig. 3 b), blank is shaped to tubular element 8 (radiation fins) by one-tenth substantially.Then, according to Fig. 3 c), mould 6 can be opened (arrow IV, V), and way is that this modeling structure 7d is radially removed from tubular element 8.In the axial direction with closing means 7c respective handling relatively.

If tubular element or pipeline part 8 are the tubular elements being made up of the fiber reinforced materials comprising reinforcedathermoset matrices, then first this mechanism 7f is still used for the required solidification by heating under stress, pressure preferably above the temperature of 60 DEG C to about 180 DEG C and-1 bar extremely about+7 bars, here, under negative pressure condition, on this component, negative pressure sac or similar means are adopted.

If tubular element or pipeline part 8 are the tubular elements being made up of the material comprising thermoplastic matrix, then first still adopting described mechanism 7e, it is for cooling down and solidify the tubular element of described molding.

Additionally or alternatively, mechanism 7e can also be configured to again heat the tubular element 8 being basically completed, and then can carry out additional axial upset, to give radiation fins ripple with harp shape.This is not explicitly shown in figure 3.

Fig. 4 illustrates the partial, longitudinal cross-sectional of the tubular element of radiation fins shape, and it illustrates with accompanying drawing labelling 8 again.Each radiation fins ripple 8a has " normally " shape including substantially parallel side 8b.Radiation fins or tubular element 8 have bright finish column bonding pad 8c at end.The longitudinal axis of this arrangement is illustrated at accompanying drawing label L place.

Fig. 5 illustrates the tubular element (radiation fins) 8 with harp ripple.At this, radiation fins ripple 8a (overlaps ripple 8a for two adjacent corrugations with the accompanying drawing labelling 8b' side indicated now at it, these sides are separated from each other) inherence, region valley regions has the recessed 8d in side, it is recessed that they are also referred to as radial side at this, because they radially extending at tubular element 8.

Harp shape shown in Fig. 5 provides the stronger movement of tubular element 8, thus tubular element can have shorter axial length in aforesaid overall movement situation, this in some cases (structure space is limited) be advantageous for.

In the radiation fins manufactured according to RTM method in known manner, it is essentially according to the harp shape of Fig. 5 and cannot be formed, and show as the important advantage of described the inventive method.

Subsequently, Fig. 6-Fig. 8 illustrates the possible embodiment of the tubular element of the present invention with sectional elevation, and this tubular element is again indicate with accompanying drawing labelling 8.Obviously, technical staff just recognizes that the present invention is not limited to three exemplary shown embodiments of this tubular element 8 at once.

According to Fig. 6, this tubular element has the two-layer being made up of fibrous composite, they with reference to the accompanying drawings shown in be distinguished from each other by their hacures, this show between described two-layer presumable structure difference.Described layer indicates with accompanying drawing labelling 8.1 and 8.2 in figure 6.Such as, described layer 8.1 and 8.2 can comprise different matrix materials.Additionally or alternatively, it is possible to achieve the different content of reinforcing fibre and/or the different orientation of reinforcing fibre.Certainly also it is within the scope of the invention that, between described layer 8.1 and 8.2, be additionally provided with at least one suitable intermediate layer, for as explained in detail above, on purpose affect certain performance of tubular element 8.

Design according to Fig. 7 illustrates the tubular element 8 of four layers, and it also has outer layer 5 (referring to Fig. 2) and internal layer 4 except described layer 8.1 and 8.2 (Fig. 6).Also or it is additionally provided with at least one intermediate layer between described layer 8.1 and 8.2 at this.

According to the view in Fig. 8, in tubular element 8 shown here, abandon outer layer.

Artisan will readily recognize that, it is possible to realize the various of conception for deriving from Fig. 6-Fig. 8 within the scope of the present invention and possibly improve scheme.

Claims

1. one kind is used for using at least one blank (1 being made up of fibrous composite, 1 ') in situation, manufacture by the method for the tubular element (8) of this fibrous composite molding, this fibrous composite comprises reinforcing fibre (3,3 '; 3 ") and be embedded into and preferably surround this reinforcing fibre (3,3 '; 3 ") matrix material (2), this blank (1,1 ') having or present the open tubular column shape including the first opening (1a), the second opening (1b) and inner chamber, the method comprises the following steps:

A) inner chamber of this blank (1,1 ') is imposed intrinsic pressure；

B) this blank (1,1 ') is made to be shaped to described tubular element (8).

2. method according to claim 1, it is characterized in that, adopting the blank (1,1 ') that is made up of fibrous composite, described fibrous composite is by least partially by carbon fiber, plastic optical fibre and especially thermoplastic fiber or strengthen with the fiber being made up of analog material.

3. the method according to claim 1 or 2, is characterized in that, this blank (1,1 ') was placed in suitable mould (6) before step a).

4. the method according to one of claims 1 to 3, is characterized in that, before step a), these openings (1a, 1b) of this blank (1,1 ') are substantially sealed shut by pressure.

5. the method according to one of Claims 1-4, it is characterized in that, molding in step b) is at least being locally that the modeling structure (7d) against external mold carries out, especially against the modeling structure (7d) of mould according to claim 3 (6).

6. method according to claim 5, is characterized in that, these modeling structures (7d) respectively especially this blank of comprehensive surrounding (1,1 ') and opening with a size interval respectively in the axial direction on a large scale, especially opens with identical size interval.

7. the method according to claim 5 or 6, is characterized in that, this blank (1,1') is at least formed in step b) in space between these modeling structures (7d), the local.

8. the method according to claim 6 or 7, it is characterized in that, several at least within described modeling structures (7d) shift near in the axial direction each other, especially under reducing dimensional conditions according to claim 6 and/or under reducing space according to claim 7 situation.

9. the method according to one of the claim 1 to 8 when quoting claim 3, is characterized in that, the tubular element (8) after step b), after opening this mould (6) and taking out molding.

10. the method according to one of claim 1 to 9, is characterized in that, as blank (1,1 '), adopts preferably pipe fitting prefabricated, that be made up of this fibrous composite.

11. method according to claim 10, it is characterized in that, employing comprises the blank (1 of thermoplastic matrix materials (2), 1 '), at least one matrix material (2) selected from following group is especially comprised: described group comprises polyether-ether-ketone, polyether-ketone, polybenzimidazoles, polyamide, polyphenylene sulfide, polysulfones, polyether sulfone, Polyetherimide, politef.

12. the method according to claim 10 or 11, it is characterized in that, adopt a pipe fitting as blank (1,1 '), this pipe fitting passes through to by reinforcing fibre (3 according to RTM method, 3 ', 3 " prefabricated geometry perfusion matrix material (2) that) constitutes or under adopting the pre-preg reinforcing fibre semi-finished product situation in prepreg (P1-P3) form or by method for winding, pultrusion processes or draw and twine the method for forming and manufacture.

13. the method according to one of claim 10 to 12, it is characterized in that, this pipe fitting is heated before step b), thus this matrix material (2) is converted to soft condition and/or flowable state.

14. the method according to one of claim 10 to 13, it is characterized in that, adopt in the step a) fluid media (medium) of preheating to apply pressure, it is preferred to use gas especially air or liquid especially water or oil.

15. the method according to claim 13 or 14, it is characterized in that, the tubular element (8) after this molding is cooled or makes it cool down, and preferably takes out from mould according to claim 3 (6) subsequently.

16. the method according to one of claim 10 to 15, it is characterized in that, adopt such blank (1,1 '), this blank is except reinforcing fibre (3,3 '; 3 ") outward, possibly together with the plastic optical fibre being made up of the thermoplastic being especially selected from according to claim 11 group, it constitutes thermo set matrix material (2), wherein, after step b), this thermoplastic is melted, and the tubular element (8) of this molding subsequently continues to be processed according to claim 15.

17. the method according to claim 15 or 16, it is characterized in that, again heat the tubular element (8) of this molding, thus this matrix material (2) is converted to soft condition and/or flowable state, and be there is with offer by axial upset the ripple of radial side recessed (8d) subsequently.

18. the method according to one of claim 10 to 17, it is characterized in that, except this blank (1,1 ') outward, also adopt and be located at this blank (1,1 ') internal layer (4) in and/or be located at this blank (1,1 ') outer outer layer (5) and by common molding, and/or at the blank (1 adopting at least two to be arranged concentrically, 1 ') in situation, intermediate layer and common molding is adopted, it is preferred to sealed by metal, metal alloy or other pressure and/or internal layer (4) that the material of non-proliferation is constituted or outer layer (5) or intermediate layer between described blank.

19. the method according to one of claim 1 to 9, it is characterized in that, this blank (1,1') provide by arranging the semi-finished product being made up of reinforcing fibre (3,3 ', 3 "); described reinforcing fibre (3,3 ', 3 ") pre-preg has this matrix material (2).

20. method according to claim 19, it is characterized in that, this reinforcing fibre (3,3 '; 3 ") pre-preg has thermo set matrix material (2), especially pre-preg has at least one matrix material (2) selected from the group comprising epoxy resin, unsaturated polyester resin, vinyl ester resin, phenol formaldehyde resin, diallyl phthalate resin, methacrylic resin, polyurethane, amino resins, melamine resin, urea resin.

21. the method according to claim 19 or 20, it is characterized in that, adopt at least one of reinforcing fibre (3 being made up of thermoplastic, 3 '; 3 "), this thermoplastic is especially selected from according to claim 11 group, and wherein, the component (8) after molding is temporarily heated to above the glass transition temperature of this thermoplastic and is further processed according to claim 9 subsequently.

22. the method according to claim 19 or 20, it is characterized in that, these semi-finished product are placed on the interior pipe fitting as internal layer (4), and it is preferably sealed by metal, metal alloy or other pressure and/or the material of non-proliferation is constituted.

23. method according to claim 22, it is characterized in that, be provided as other outer tube member of outer layer (5) around these semi-finished product, it is preferably sealed by metal, metal alloy or other pressure and/or the material of non-proliferation is constituted.

24. the method according to claim 19,20 or 23, it is characterized in that, when adopting at least two blank (1,1'), at least one intermediate layer being preferably made up of the material of metal, metal alloy or the sealing of other pressure and/or non-proliferation is set between which.

25. the method according to one of claim 22 to 25, it is characterized in that, described internal layer (4) and/or outer layer (5) and/or described intermediate layer are molding simultaneously.

26. the method according to one of claim 19 to 25, it is characterized in that, as semi-finished product, adopt pre-impregnated fiber flexible pipe or the pre-preg continuous fiber of flat pre-impregnated fiber pad or braiding.

27. method according to claim 26, it is characterized in that, adopt include one-way orientation, preferably in the reinforcing fibre (3' of axially orientation of tubular element (8), 3 " fiber mat), or adopt fiber mat or the fiber hose of the angle of weave having regulation between the reinforcing fibre (3) of different orientation.

28. the method according to one of claim 19 to 27, it is characterized in that, adopt in the step a) fluid media (medium) to apply pressure, it is preferred to use gas especially air or liquid especially water or oil.

29. the method according to one of claim 19 to 28, it is characterized in that, the tubular element (8) of this molding is subsequently by axial upset again, to provide the wave with radial side recessed (8d).

30. the method according to one of claim 19 to 29, it is characterized in that, complete the tubular element after molding (8) to be cured by heating under stress, preferably at about 60 DEG C to about 180 DEG C temperature and-1 bar extremely about+7 bar pressures, wherein, it is preferable that under adopting negative pressure condition, adopt the negative pressure sac etc. above this component.

31. the method according to one of claims 1 to 30, it is characterized in that, adopt at least one blank (1,1 '), in this blank, described reinforcing fibre (3,3 ', 3 ") about this tubular element (8) longitudinally with the angular orientation of about 0 ° or about 90 ° or about ± 45 °.

32. at least one blank (1 being made up of fibrous composite in employing, 1 ') in situation, for manufacturing by the device of the tubular element (8) of this complex fiber material molding, this complex fiber material comprises reinforcing fibre (3,3 '; 3 ") and be embedded into and preferably surround this reinforcing fibre (3,3 '; 3 ") matrix material (2), this blank (1,1 ') having or present the open tubular column shape including the first opening (1a), the second opening (1b) and inner chamber, described device (7) is configured to

A) inner chamber of this blank (1,1 ') is imposed intrinsic pressure, and

B) this blank (1 is made, 1 ') described tubular element (8) it is shaped to, and for this purpose, described device has suitable mould (6), described blank (1,1 ') can be placed in this mould and this blank (1,1 ') can against this mould molding

It is characterized in that,

This device (7) is configured to adopt the blank (1 being made up of the fibrous composite comprising thermoplastic matrix materials (2), 1 ') and accordingly have for heating this blank (1,1 ') mechanism and/or for heating the mechanism (7b) being used to execute stressed fluid media (medium), described fluid media (medium) preferably gas especially air or liquid especially water or oil；Or

This device (7) is configured to adopt the blank (1 being made up of the fibrous composite comprising thermo set matrix material (2), 1 ') and accordingly be there is the mechanism (7f) for having been solidified the tubular element (8) after molding by heating under stress, preferably at about 60 DEG C to about 180 DEG C temperature and-1 bar extremely about+7 bar pressures, it is preferable that be used in the negative pressure sac etc. above this component under adopting negative pressure condition.

33. the device (7) according to claim 31, it is characterized in that also there is the mechanism (7e) for cooling down and/or for again having heated the tubular element (8) after molding.

34. the device (7) according to claim 32 or 33, it is characterized in that, described mould (6) has multiple modeling structure (7d), these modeling structures (7d) surround this blank (1,1 ') respectively on a large scale especially all sidedly and are spaced with the size that size is especially identical respectively in the axial direction.

35. the device (7) according to claim 34, it is characterized in that, this blank (1,1 ') at least can be formed in the space between described modeling structure (7d) in local.

36. the device (7) according to claim 34 or 35, it is characterized in that, several at least within described modeling structures (7d) can shift near in the axial direction mutually, especially in the size reduction situation according to claim 32 and/or in the space reduction situation according to claim 33.

37. the tubular element (8) that the method in particular according to one of claims 1 to 31 manufactures, it is characterized in that, at least one blank (1 that it is made up of fibrous composite in employing, 1 ') manufacture in situation, this fibrous composite comprises reinforcing fibre (3,3 '; 3 ") and be embedded into and preferably surround this reinforcing fibre (3,3 '; 3 ") matrix material (2), this blank (1,1 ') is molded to described tubular element (8) by the inner chamber of this blank (1,1 ') is imposed intrinsic pressure (p).

38. the tubular element (8) according to claim 37, it is characterized in that, as blank (1,1 ') pipe fitting is adopted, this pipe fitting according to RTM method by giving the prefabricated geometry being made up of reinforcing fibre (3,3 ', 3 ") perfusion matrix material (2) or under adopting the pre-preg reinforcing fibre semi-finished product situation in prepreg (P1; P2, P3) form or by method for winding, pultrusion processes or draw and twine the method for forming and manufacture.

39. the tubular element (8) according to claim 37 or 38, it is characterized in that, in this fibrous composite, radially it is provided with at least one internal layer (4) and/or is radially externally provided with outer layer (5) at this fibrous composite, and/or adopting at least two blank (1,1 ') in the two-layer (8.1 being made up of fibrous composite time, 8.2) at least one intermediate layer it is provided with between, it is preferable that be made up of metal, metal alloy or other pressure-tight and/or non-proliferation material.

40. the tubular element (8) according to one of claim 37 to 39, it is characterized in that, described reinforcing fibre (3,3 ', 3 ") is constituted with carbon fiber or the form of fiber that is made up of analog material, it is preferable that be made up of thermoplastic at least partly.

41. the tubular element (8) according to one of claim 37 to 40, it is characterized in that, described reinforcing fibre (3,3', 3 ") longitudinally substantially carry out orientation with the angle of about 0 ° or about 90 ° or about ± 45 ° about this tubular element (8), and carry out orientation respectively at different angles preferably in described reinforcing fibre when adopting multiple blanks (1,1 ') (3; 3 ', 3 ").

42. the tubular element (8) according to one of claim 37 to 41, it is characterized in that, this matrix material (2) is thermoplastic, especially at least one matrix material (2) selected from following group is comprised, this group comprises polyether-ether-ketone, polyether-ketone, polybenzimidazoles, polyamide, polyphenylene sulfide, polysulfones, polyether sulfone, Polyetherimide, politef, wherein, it is preferable that the described reinforcing fibre being made up of thermoplastic at least partially constitutes this matrix material (2)；Or, described matrix material (2) is the thermosetting plastics including preferably stickiness, especially includes at least one matrix material (2) being selected from the group comprising epoxy resin, unsaturated polyester resin, vinyl ester resin, phenol formaldehyde resin, diallyl phthalate resin, methacrylic resin, polyurethane, amino resins, melamine resin, urea resin.

43. the tubular element (8) according to one of claim 37 to 42, it is characterized in that, the wall thickness of this fibrous composite at about 0.2mm to about between 5mm, it is preferable that at about 0.5mm to about between 5mm.

44. the tubular element (8) according to one of claim 37 to 43, it is characterized in that, it is constituted with radiation fins form, and this radiation fins has at least one setback region (8a) and at least one is positioned at the preferably join domain (8c) in bright finish cylindricality of end.

45. the tubular element (8) according to one of claim 37 to 44, it is characterized in that, at least one ripple in this setback region (8a) has radial side recessed (8d) in its ripple side region (8b').

46. by the tubular element (8) according to one of claim 37 to 45 as the fastener between two pipeline fittings, as media guide, as separation member, as spring part, as sealing member or be used as compensating part purposes.