EP3448670A1 - Klimarohr und herstellungsverfahren - Google Patents
Klimarohr und herstellungsverfahrenInfo
- Publication number
- EP3448670A1 EP3448670A1 EP17731803.7A EP17731803A EP3448670A1 EP 3448670 A1 EP3448670 A1 EP 3448670A1 EP 17731803 A EP17731803 A EP 17731803A EP 3448670 A1 EP3448670 A1 EP 3448670A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- air conditioning
- conditioning pipe
- layer
- prepreg
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000004744 fabric Substances 0.000 claims abstract description 38
- 239000011521 glass Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000004745 nonwoven fabric Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 description 12
- 229920005989 resin Polymers 0.000 description 12
- 239000002131 composite material Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005284 oxidic glass Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
- B32B1/08—Tubular products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/21—Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0227—Ducting arrangements using parts of the building, e.g. air ducts inside the floor, walls or ceiling of a building
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0245—Manufacturing or assembly of air ducts; Methods therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0263—Insulation for air ducts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0809—Fabrics
- B29K2105/0845—Woven fabrics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/02—2 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/04—4 layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/05—5 or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/021—Fibrous or filamentary layer
- B32B2260/023—Two or more layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2597/00—Tubular articles, e.g. hoses, pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/18—Aircraft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
Definitions
- the invention relates to a climate tube for an aircraft for guiding a gas.
- climate tubes lead e.g. Air for air conditioning.
- the air conditioning takes place for an interior of the aircraft, e.g. the passenger cabin of the aircraft.
- the air tube is therefore intended to mount in the passenger cabin of the aircraft.
- the air conditioning tubes in the aviation sector must also be as light as possible and meet fire safety requirements.
- the object of the present invention is to propose improvements in terms of air-conditioning tubes.
- the air tube is used to guide a gas and is intended for proper installation in an aircraft.
- the air tube has a wall.
- the wall is a sandwich component.
- the wall contains at least one fabric which forms a first layer of the wall and at least one non-woven of glass-containing material which forms a second layer of the wall.
- the fabric is in particular a glass fabric or a glass-carbon fabric (hybrid weave) or a carbon fabric.
- the nonwoven contains in particular an oxidic glass. Preferably, it is an E-glass. It preferably contains 53 to 55 wt .-% SiO z and 14 to 15 wt .-% Al 2 0 3rd
- the glass has a temperature resistance up to 1000 ° C. In particular, the nonwoven on a uniform fiber distribution.
- the wall limits the air tube to an outside space.
- the exterior space is the space surrounding the climate pipe. In the bounded by the wall interior, the gas is passed.
- the nonwoven results in a reduction in the microporosity of the fiber composite of the first and second layers. This serves to improve the tightness, in particular airtightness, of the wall and thus of the climate pipe and thus leads to a reduction in the leakage rate at Kll arohr.
- the leakage rate describes how much gas penetrates the wall per unit of time.
- the wall may contain further layers of nonwovens, fabrics or other layers.
- the or one of the nonwovens forms a cover layer which faces the interior.
- the fleece is thus the innermost layer, which at best, for example. is still surrounded by resin of a prepreg, paint or applications.
- the fleece or a nonwoven material results in an improvement in the surface of the climate pipe, since a nonwoven fabric as a cover layer results in a smoother component surface on the climate pipe. Overall, this results in a lower leakage rate of the tube.
- the wall contains another fabric forming a third layer of the wall.
- the nonwoven fabric of the second layer is disposed between the two fabrics of the first and third layers.
- the interposition of a fleece between two fabrics in the sandwich component results in an overall more stable sandwich construction, which is also thanks to the fleece also tight against gas passage.
- at least one of the fabrics is a fabric of a pre-impregnated fiber (fabric impregnated with resin). The fabric is thus made available or processed as a prepreg for the sandwich composite. Prepregs are commercially available in a large selection, so that the air tube in this regard is easy to produce.
- all fabrics are those of respective prepregs.
- this embodiment results in an integration of nonwoven or nonwoven fabric in a prepreg composite for improving the leakage properties of the air tube.
- a - especially dry - semi-finished nonwoven fabric in the prepreg composite the required tightness of the air tube, in particular in the form of air guide components, achieved and (especially in the case of nonwoven as cover layer) significantly improves the surface of the wall.
- the web has a grammage of from 20 grams per square meter to 70 grams per square meter, especially a grammage of from 30 grams per square meter to 50 grams per square meter. According to the invention, this results in the use of particular dry nonwoven fabrics with a low basis weight of 30 to 50 grams per square meter. These weights have been found, especially for aerospace applications, as a good compromise between the weight of the fleece or the air tube and the achievable lowering of the leakage rate.
- the climate pipe is a climate pipe for guiding air as a gas. According to this embodiment, therefore, there is an air-conditioning tube with improved airtightness.
- At least one of the nonwovens has a thickness of 0.1 to 0.8 millimeters, in particular 0.3 to 0.5 millimeters.
- At least one of the nonwovens has a binder content of 3 percent to 10 percent, in particular 5 percent.
- the binder is used in the production of the nonwoven fabric for cohesion of the nonwoven fibers.
- the object is also achieved by a method according to claim 9.
- the method is used for producing a climate pipe according to the invention.
- the procedure and at least a part of its embodiments and the respective advantages have been explained analogously already in connection with the Klimarohr invention.
- At least one of the fabrics forming the first layer of the wall and at least one of the nonwovens forming the second layer of the wall are manufactured as a sandwich component to the wall.
- the production of the air tube as a sandwich component is particularly simple and inexpensive.
- At least one of the fabrics is provided as or in the form or as part of a prepreg.
- One of the nonwovens is consolidated with the prepreg into a dressing.
- the nonwoven can be provided as a prepreg.
- This means that the nonwoven fabric has been impregnated with a resin, preferably with the same resin as the fabric.
- the wall or the air tube is made using the dressing - in particular together with other layers - to the air tube.
- solidate is meant the corresponding adhesion or adhesion of the web to the resin or the sticky surface of the prepreg. After production of the prepreg, therefore, the nonwoven is applied to the prepreg. Additional resin or other auxiliaries are not necessary for this, since the prepreg per se has sufficient resin or a sticky surface to which the nonwoven adheres.
- the handling of the nonwoven in the manufacturing process for the air tube is particularly simple, since this no longer has to be handled separately.
- the fleece is provided as a dry nonwoven semifinished product and consolidated into a dressing.
- the handling of a dry nonwoven semifinished product is particularly easy to consolidate.
- the dressing is consolidated by rolling up the prepreg together with the web.
- a Anyakrang results. Pressing force with which the nonwoven is pressed onto the prepreg, so that it adheres particularly well to the excess resin of the prepreg or the sticky surface of the prepreg.
- the bandage on the one hand and at least one further layer of the wall of the air tube on the other hand inserted into separate steps in a mold before the inserted in the mold structure is made in the form to the wall or the air tube.
- the production of the air tube thus runs in principle the same as in the same climate tubes without fleece insert, in which the fabric is inserted alone as a prepreg.
- the motivation of the invention is an improvement of the leakage or leakage properties of climate pipes.
- An improvement in the air-tightness or a reduction in the leakage rate on a climate pipe can be achieved by brushing sealing lacquer on the component surface, that is to say the surface of the climate pipe.
- the invention consists in particular in the use of a nonwoven, in particular dry nonwoven, as a micro sandwich in air conduction components. According to the invention, nonwoven webs are used in particular.
- a reduction of the workload is achieved, in particular eliminates the sealing varnish or its order.
- Components according to the invention have higher stability at almost the same weight.
- the fleece is in particular a dry fleece, that is to say such without resin application.
- an already existing or known air tube according to the invention can be modified in particular in the field of aviation.
- a fleece is thus introduced during the production of the air tube. Since the fleece is in itself an incombustible material, the fire load in the air tube and thus in the aircraft is thereby changed only slightly or not at all.
- An aeronautical approval for such a modified air tube is therefore particularly simple and inexpensive possible.
- a dry nonwoven web after the preparation of a prepreg without the use of additional resin is consolidated therewith by rolling up. According to the invention results in a leakage optimization of air guide components.
- FIG. 1 shows a climate pipe according to the invention
- Figure 2 shows a wall of a climate pipe according to the invention in their production
- Figure 3. the insertion of the components of the air tube in a mold during manufacture.
- FIG. 1 shows a finished air-conditioning tube 2.
- the climate-controlled tube has a wall 8.
- the wall 8 limits the air tube to an outside space 16.
- the air tube is thus surrounded by an exterior space 16.
- the air tube extends along a central longitudinal axis 18.
- the wall 8 surrounds an interior 24 of the air tube.
- the interior 24 serves to guide a gas, not shown here, here air.
- FIG. 2 symbolically shows a section of the air tube 2 or its wall 8 during its production between a metallic tool 4 and a press bladder 6.
- the central longitudinal axis 18 is symbolically indicated here.
- the wall 8 is a sandwich component.
- the wall 8 includes a fabric 10 forming a first layer of the wall 8, a nonwoven fabric 12 formed of a glass containing material forming a second layer of the wall 8, and a fabric 1 forming a third layer of the wall 8.
- the fleece 12 is thus arranged between the two fabrics 10, 14.
- the fabrics 10, 14 are prefabricated in the example as prepregs, that is impregnated or impregnated with a resin.
- the components are hissing tool 4 and press bladder 6 assembled by pressure of the press bladder 6 in the direction of the tool 4 out.
- the fabrics 10, 14 are each provided in the form of a prepreg 20.
- the fabric 10 and the nonwoven fabric 12 are prior to introduction between tool 4 and compressed bladder 6 are consolidated into a dressing 22, which is indicated in Figure 1 by a dashed frame.
- the mat 12 is applied to the prepreg 20 and held thereon by the excess resin or tacky surface of the prepreg 20.
- the dressing 22, and the remaining fabric 14, which is also provided as a prepreg 20, are then made to the air tube 2 and the wall 8, respectively.
- the consolidation to the dressing 22 takes place outside the arrangement of the mold 4 and the blister 6 and before insertion between these elements.
- the mat 12 is provided as a dry semi-finished nonwoven or as the fabrics 10, 14 as a prepreg to be consolidated into the dressing 22.
- the dressing 22 was consolidated (not shown) prior to insertion into the tool 4 by rolling up the prepreg 20 together with the web 12.
- the dressing 22 on the one hand and the further layer in the form of the fabric 14 are inserted into the mold 4 in separate working steps before the structure inserted in the tool 4, in this case the dressing 22 and the fabric 14, in the tool 4 for the air tube 2 is manufactured.
- FIG. 3 shows in the subfigures a) -c) successive steps in the method for producing the climate pipe 2.
- the representation is symbolic and shows only a section of the tool 4 and the air tube 2 or its components.
- the central longitudinal axis 18 is again indicated only.
- the blister 6 omitted for clarity.
- the fabric 10 is inserted into the tool 4 in a first step.
- the fleece 12 is placed on the fabric 10.
- the step according to FIG. 3 a) is omitted, namely when the fabric 10 and the fleece 12 are already consolidated as a dressing 22.
- Figure 3b) shows then the first process step, in which the dressing 22 is inserted into the tool 4.
- a further layer of the wall 8, namely the fabric 1, is then placed on the fleece 12 or the dressing 22.
- the wall 8 or the air tube is completed as described above by connecting the components inserted in the tool 4.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Aviation & Aerospace Engineering (AREA)
- Civil Engineering (AREA)
- Laminated Bodies (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016007157.5A DE102016007157B4 (de) | 2016-06-10 | 2016-06-10 | Führungsrohr und Herstellungsverfahren |
PCT/EP2017/000645 WO2017211446A1 (de) | 2016-06-10 | 2017-06-01 | Klimarohr und herstellungsverfahren |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3448670A1 true EP3448670A1 (de) | 2019-03-06 |
Family
ID=59093513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17731803.7A Withdrawn EP3448670A1 (de) | 2016-06-10 | 2017-06-01 | Klimarohr und herstellungsverfahren |
Country Status (4)
Country | Link |
---|---|
US (1) | US20190092481A1 (de) |
EP (1) | EP3448670A1 (de) |
DE (1) | DE102016007157B4 (de) |
WO (1) | WO2017211446A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022174888A1 (en) * | 2021-02-16 | 2022-08-25 | Dalgarno Ip Ltd | A duct section for a duct distribution system and a method of making a duct section |
DE102022128601A1 (de) * | 2022-10-28 | 2024-05-08 | Diehl Aviation Laupheim Gmbh | Luftführungsbauteil mit Spread-Tow-Gewebe |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4539253A (en) * | 1984-03-30 | 1985-09-03 | American Cyanamid Co. | High impact strength fiber resin matrix composites |
EP0370147B1 (de) * | 1988-11-25 | 1993-04-28 | The Dexter Corporation | Rohrförmiger Aufbau aus Verbundwerkstoff |
CA2128974C (en) * | 1993-08-11 | 2002-03-12 | Patrick M. Noonan | Mat faced duct board and method of manufacture thereof |
WO1995025633A1 (fr) * | 1994-03-24 | 1995-09-28 | Toray Industries, Inc. | Tube incurve, son procede et son appareil de production |
US7220470B2 (en) * | 2001-02-20 | 2007-05-22 | Certainteed Corporation | Moisture repellent air duct products |
DE10150659A1 (de) * | 2001-10-17 | 2003-05-08 | Kraft Uwe | Vorrichtung zur Herstellung von Kunststoffbauteilen |
US20030211262A1 (en) * | 2002-05-08 | 2003-11-13 | Certainteed Corporation | Duct board having two facings |
US6889716B2 (en) * | 2003-01-27 | 2005-05-10 | Flexpipe Systems Inc. | Fiber reinforced pipe |
WO2005030483A2 (en) * | 2003-09-29 | 2005-04-07 | Hunt Robert D | High strength composite material geometry and methods of manufacture |
DE10359912B4 (de) * | 2003-12-18 | 2009-07-02 | Plasticon Germany Gmbh | Verbundhalbzeuge |
DE602004025670D1 (de) * | 2004-04-20 | 2010-04-08 | Salver S P A | Mehrschichtige Leitung |
US20070202314A1 (en) * | 2004-04-30 | 2007-08-30 | Sambark Co., Ltd | Thermoplastic Compound Plate-Shaped Material, Method For Manufacturing And Articles Manufactured Using The Same |
US20050257847A1 (en) * | 2004-05-24 | 2005-11-24 | Alenia Aeronautica S.P.A. | Multi-layer duct for air distribution in air conditioning systems for vehicles, in particular aircrafts, and an element for fixing the duct to the structure of an aircraft |
DE102005061838A1 (de) * | 2005-12-23 | 2007-07-05 | Xperion Isola Composites Gmbh | Klimarohr für ein Luftfahrzeug |
DE102008016462A1 (de) * | 2008-03-31 | 2009-10-01 | Airbus Deutschland Gmbh | Verbessertes Klimarohr, insbesondere für Flugzeuge |
DE102010002782A1 (de) * | 2010-03-11 | 2011-09-15 | Repower Systems Ag | Verfahren zur Herstellung eines dickwandigen Bauteils, flächiges Laminatschichtmaterial und Bauteil |
DE102013002893A1 (de) * | 2013-02-20 | 2014-08-21 | Diehl Aircabin Gmbh | Hybridbauteil und Herstellungsverfahren |
DE202013006830U1 (de) * | 2013-07-26 | 2013-08-14 | KVB Institut für Konstruktion und Verbundbauweisen gemeinnützige GmbH | Form zur Herstellung eines aus miteinander verbindbaren Lagen bestehenden Rohres und damit hergestelltes Rohr |
JP6120461B2 (ja) * | 2014-01-10 | 2017-04-26 | 本田技研工業株式会社 | 自動車用バンパー |
-
2016
- 2016-06-10 DE DE102016007157.5A patent/DE102016007157B4/de active Active
-
2017
- 2017-06-01 EP EP17731803.7A patent/EP3448670A1/de not_active Withdrawn
- 2017-06-01 WO PCT/EP2017/000645 patent/WO2017211446A1/de unknown
-
2018
- 2018-11-28 US US16/202,183 patent/US20190092481A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE102016007157A1 (de) | 2017-12-14 |
DE102016007157B4 (de) | 2019-11-28 |
WO2017211446A1 (de) | 2017-12-14 |
US20190092481A1 (en) | 2019-03-28 |
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