CN116408992A - Method for continuously producing heat insulation board by production machine - Google Patents

Method for continuously producing heat insulation board by production machine Download PDF

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Publication number
CN116408992A
CN116408992A CN202211656926.7A CN202211656926A CN116408992A CN 116408992 A CN116408992 A CN 116408992A CN 202211656926 A CN202211656926 A CN 202211656926A CN 116408992 A CN116408992 A CN 116408992A
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CN
China
Prior art keywords
mat
fibre
storage means
production machine
fiber
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Pending
Application number
CN202211656926.7A
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Chinese (zh)
Inventor
F.克拉夫
C.巴兰
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Gaztransport et Technigaz SA
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Gaztransport et Technigaz SA
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Publication of CN116408992A publication Critical patent/CN116408992A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • B29C44/145—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining the lining being a laminate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/304—In-plane lamination by juxtaposing or interleaving of plies, e.g. scarf joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/22—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/24—Making multilayered articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/321—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed part being a lining, e.g. a film or a support lining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/326—Joining the preformed parts, e.g. to make flat or profiled sandwich laminates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • B29C70/14—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/541—Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
    • 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
    • B32B5/18—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 features of a layer of foamed material
    • B32B5/20—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 features of a layer of foamed material foamed in situ
    • 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
    • B32B5/265—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 characterised by one fibrous or filamentary layer being a non-woven fabric layer
    • B32B5/266—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 characterised by one fibrous or filamentary layer being a non-woven fabric layer next to one or more non-woven fabric layers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/205—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics of foamed plastics, or of plastics and foamed plastics, optionally reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/22—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics reinforced
    • 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
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
    • 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0012—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular thermal properties
    • B29K2995/0015—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered 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
    • 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
    • B32B2250/20—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
    • 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
    • B32B2307/304—Insulating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Architecture (AREA)
  • Textile Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

A method for manufacturing a heat shield by a production machine, the heat shield comprising polyurethane foam and at least two superimposed fibrous layers embedded in the polyurethane foam. The method comprises at least a first step during which a first fibrous mat (210) from a first storage means (21) and a third fibrous mat (220) from a third storage means (22) are superposed on the conveyor (5); at least a second step during which a second fibrous mat (310) from the second storage device (31) and a fourth fibrous mat (320) from the fourth storage device (32) are positioned coplanar with the first fibrous mat (210) and the third fibrous mat (220), respectively.

Description

Method for continuously producing heat insulation board by production machine
Technical Field
The present invention relates to a method for continuously producing insulation panels by means of a production machine, which insulation panels comprise superposed fibre mats embedded in polyurethane foam.
Background
Insulation panels made of polyurethane foam are a type of insulation material, particularly for transportation or marine storage at very low temperatures. The use of such insulation panels is particularly valuable for transporting Liquefied Natural Gas (LNG) within tanks lined with insulation panels made of polyurethane foam and covered with a sealing membrane.
A method for producing heat insulation panels made of polyurethane foam involves a production machine. Document FR2826967 discloses a method for manufacturing reinforced polyurethane foam by introducing a fibrous mat by means of a production machine. The fiber mat is stored on a roll and transported from the roll to a zone where polyurethane foaming solution is poured.
This method of manufacture requires replacement of the fiber mat rolls as they are depleted. Changing the fiber mat rolls results in stopping the production machine for a period of time to place a new roll in place of the depleted roll. Such stopping of the production machine limits the yield of the insulation panels, in other words, the number of insulation panels produced per hour by the production machine.
Further, stopping the machine includes stopping the polyurethane spraying apparatus. Such a stop is complicated to manage and in some cases requires cleaning the nozzle with chemical solvents and/or replacement of the nozzle, as the nozzle is blocked by the expanding polyurethane residues.
Furthermore, in this manufacturing method, since the length of the fibrous layers is variable from one roll to another and the fibrous layers start at the same position but end with a longitudinal offset, the ends of the casting do not have sufficient mechanical strength and insulation properties. These ends representing a non-negligible length are then cut off and discarded.
Disclosure of Invention
The present invention proposes to overcome the drawbacks of the prior art, in particular by limiting the interruption of the production machine and the need to process the longitudinal end sections of the insulation panel, by means of a method for manufacturing an insulation panel comprising polyurethane foam and at least two superposed fibre layers embedded in the polyurethane foam, said embedding being by means of a production machine comprising at least one conveyor, a polyurethane deposition zone, a first fibre mat storage means and a second fibre mat storage means associated with the first storage means to produce a first fibre layer, the production machine comprising a third fibre mat storage means and a fourth fibre mat storage means associated with the third storage means to produce a second fibre layer, the manufacturing method being implemented:
at least a first step during which the first fibre mat from the first storage means and the third fibre mat from the third storage means are superposed on the conveyor,
-at least a second step during which the second fibre mat from the second storage means and the fourth fibre mat from the fourth storage means are positioned coplanar with the first fibre mat and the third fibre mat, respectively.
According to one feature of the invention, the manufacturing method implements at least a third step during which at least the second fiber mat is fixed to the first fiber mat and/or the fourth fiber mat is fixed to the third fiber mat.
The manufacture of insulation panels from fiber mat-reinforced polyurethane foam requires very precise alignment of the fiber mat. These fiber mats must be embedded in polyurethane foam, in other words, the insulation panel is formed of a plurality of fiber mats separated by polyurethane foam. The manufacture of such insulation panels by means of a production machine according to the invention comprises at least two rows of fibre mat storage means arranged one above the other. One row supplies the conveyor while another row is ready to be deployed when the storage devices of the first row are depleted. It should be appreciated that each storage device of one row is associated with one storage device of another row in order to replace it without stopping the production machine. It should be noted that the essence of the invention is that in association with one storage device during deployment, the fiber mat that replaces the storage device will be put in place during deployment.
The co-planar positioning of the fiber mats of the second and fourth storage devices with the fiber mats of the first and third storage devices, respectively, allows for the maintenance of the mechanical properties provided by the addition of the fiber mats to the polyurethane foam of the overall insulation panel.
The number of pairs of fibrous mat storage means is equal to the number of fibrous layers present in the finished insulation panel. For a thermal insulation panel having a thickness of 400mm, the number of fiber layers may be up to 12 fibers, which means that the method and production machine uses or includes 12 pairs of fiber mat storage devices.
According to another feature of the invention, the longitudinal ends of the second fiber mat and the longitudinal ends of the first fiber mat overlap and/or the longitudinal ends of the fourth fiber mat and the longitudinal ends of the third fiber mat overlap. The superposition of the fibre mats forming the same fibre layer makes it possible to ensure that the fibre mats are present continuously within the fibre layers in the board.
According to one feature of the invention, the attachment between the fibre mats is ensured by a binding step. The fixation of the fibre mats of the same fibre layer makes it possible to maintain the exact positioning of the fibre mats during the polyurethane foaming phase.
According to one feature of the invention, the connection between the fibre mats is ensured by a thermal bonding step.
According to another feature of the invention, the superposition of the longitudinal ends extends over a length of at most 1500mm, preferably at most 1000mm. The fibre mats are mostly coplanar, except for short areas where the longitudinal ends of each mat are stacked, in particular for connection to each other.
According to another feature of the invention, the longitudinal ends of the second fibrous mat are spaced apart from the longitudinal ends of the first fibrous mat by a distance of at most 1500mm, preferably 1000mm, and/or the longitudinal ends of the fourth fibrous mat are spaced apart from the longitudinal ends of the third fibrous mat by a distance of at most 1500mm, preferably 1000mm. The maximum distance fiber mat spacing of 1500mm is still acceptable and allows for uniform mechanical properties to be maintained throughout the insulation panel.
According to another feature of the invention, the number of fiber mats incorporated into the insulation panel is equal to the number of fiber mats from the first row or second row storage device plus or minus one fiber mat. Due to this feature, there may not be more than one localized gap of fiber mat across the thickness of the panel. This makes it possible to ensure consistent mechanical properties between different insulation panels during production.
According to another feature of the invention, the production machine comprises means for coplanar positioning of the fibre mats. The co-planar positioning means makes it possible to facilitate the positioning of the fibre mats forming the same fibre layer.
According to one feature of the invention, the second fiber mat is made coplanar with the first fiber mat and/or the fourth fiber mat is made coplanar with the third fiber mat using a coplanar positioning device. The term "coplanar" means that the principal plane of extension of the first fibrous mat extends in the same plane as the principal plane of extension of the second fibrous mat.
According to one feature of the invention, the fibers are glass fibers.
The invention also relates to a machine for producing a heat insulating board comprising polyurethane foam and at least two fibre mats arranged as superposed fibre layers embedded in the polyurethane foam, the production machine comprising a conveyor, a polyurethane deposition zone, a first fibre mat storage means and a second fibre mat storage means associated with the first storage means for producing a first fibre layer, the production machine comprising a third fibre mat storage means and a fourth fibre mat storage means associated with the third storage means for producing a second fibre layer.
According to one feature of the invention, each fibrous layer comprises at least two fibrous mats, for example coplanar, and the production machine comprises a coupling device configured to link together two fibrous mats of the same fibrous layer, in particular at their longitudinal ends.
According to another feature of the invention, the production machine comprises means for coplanar positioning of the fibre mats of the same fibre layer.
According to another feature of the invention, the coplanar positioning means are formed by a plurality of members protruding at least from the face of the conveyor facing the fibre mat forming the fibre layer.
According to another feature of the invention, the plurality of members are retractable. This feature of the member allows for release of the fibrous mat. Preferably, retraction of the members is accomplished at the end of the fiber mat conveyor to prevent fibers of the fiber mat from still adhering to the conveyor.
According to another feature of the invention, the coplanar positioning means are formed by a plurality of channels having grooves configured to guide the fiber mat to the conveyor.
According to one feature of the invention, the production machine comprises at least two rows of storage devices, each row comprising a plurality of storage devices, and each row extending along the conveyor.
According to one feature of the invention, the rows of storage devices are arranged vertically one above the other.
According to one feature of the invention, the first row of storage means and the second row of storage means have an offset with respect to each other in the direction of extension of the conveyor. This offset allows for the promotion of unwinding of the second row of fibrous mats.
The invention also relates to a heat shield comprising polyurethane foam and at least two fibre mats arranged as superposed fibre layers embedded in the polyurethane foam, characterized in that at least one of the fibre layers has a first fibre mat coplanar with a second fibre mat.
According to one feature of the panel, the first fibrous mat is secured to the second fibrous mat, in particular by staples or a thermally bonded material.
According to another feature of the panel, the longitudinal ends of the first fiber mat and the longitudinal ends of the second fiber mat are stacked. The overlap region is marginal in view of the co-planar nature of the first fibrous mat and the second fibrous mat as a whole.
According to another feature of the plate, the overlap of the longitudinal ends extends over a length of maximum 1500mm.
According to one feature of the panel, the longitudinal ends of the second fibrous mat and the longitudinal ends of the first fibrous mat are spaced apart by a distance of at most 1500mm.
According to another feature of the panel, the fibers of the fiber mat are glass fibers.
Drawings
Other features and advantages of the invention will appear from the following description and from the several exemplary embodiments, which are given for illustrative purposes and are not limited to the accompanying schematic drawings in which:
fig. 1 schematically illustrates a machine for producing insulation panels according to one embodiment.
Fig. 2 schematically shows the production machine of fig. 1, wherein the storage devices of the first row are depleted.
Fig. 3 schematically illustrates the arrangement of the fiber layers in the insulation panel.
Fig. 4 schematically shows a coupling device capable of securing two fiber mats together.
Fig. 5 schematically shows a variant of an embodiment of the production machine, which comprises positioning means formed by members protruding from the conveyor.
Fig. 6 schematically shows a production machine comprising a positioning device formed by a channel.
Detailed Description
It should be noted at the outset that although the drawings illustrate embodiments of the invention in detail, these drawings may of course be used to better define the invention when appropriate. It should also be noted that these figures illustrate only exemplary embodiments of the invention.
Features, variations and different embodiments of the invention may be combined with each other in various combinations as long as they are not incompatible or exclusive of each other. In particular, variants of the invention are conceivable which comprise only the selection of the features described below, apart from the other features described, provided that the selection of the features is sufficient to confer technical advantages and/or to distinguish the invention from the prior art.
In the drawings, like numerals are retained for components common to several figures.
Further, referring to the drawings, the longitudinal direction will be shown by axis L, the lateral direction will be shown by axis T, and the vertical direction will be shown by axis V. In this reference frame, the term "high" or "upper" will be shown by the positive direction of the axis V, and the term "low" or "lower" will be shown by the negative direction of this same axis V. It should be noted that the term "longitudinal direction" is understood to mean the main direction of extension of the object in question in the positive or negative direction of the axis L, the term "transverse direction" is understood to mean the main direction of extension of the object in question in accordance with the positive or negative direction of the axis T, and the term "vertical direction" is understood to mean the main direction of extension of the object in question in the positive or negative direction of the axis V.
First, it should be noted that the description below regarding the storage devices 21, 22, 31 and 32 applies mutatis mutandis to all the storage devices of the production machine 1.
Fig. 1 schematically shows a production machine 1 comprising a first row 2 storage device and a second row 3 storage device. The first row 2 comprises at least one first storage means 21 and advantageously a plurality of storage means. The second row 3 further comprises at least one second storage means 31 and advantageously a plurality of storage means.
As with the other storage devices of the first row 2 and the second row 3, the first storage device 21 is a roll formed of fibrous mat wound around a hub. The term "fibrous mat" refers to a nonwoven aggregate of fibers that have no particular orientation. When the fibre mat is installed in the production machine 1, the fibre mat extends in the longitudinal direction L and it has two longitudinal ends, which correspond to the start point of the fibre mat and the end point of the fibre mat. It should be noted that in the illustrated embodiment, the fibers in the fiber mat are glass fibers.
The first storage means 21 of the first row 2 comprise a first fibre mat 210, which first fibre mat 210 is arranged on the component conveyor 5 of the production machine 1 to form a first fibre layer 211. The third storage device 22 adjoining the first storage device 21 comprises a third fibre mat 220, which third fibre mat 220 is arranged on the conveyor 5 to form a second fibre layer 221 such that the first and second fibre layers 211, 221 are stacked in the vertical direction V.
Thus, each storage device of the first row 2 comprises a fibre mat deployed on a conveyor 5 to form a stack of fibre layers, the number of fibre layers being equal to the number of rolls of a row.
The conveyor 5 is provided with means for driving the fibre mat, which means in the embodiment shown is a belt 51 that is moved in an endless direction 52 by means of a transmission member 53. The conveyor 5 drives the fibre mat towards a polyurethane deposition zone 6, where polyurethane foaming solution is poured onto the fibre mat forming the different fibre layers in the polyurethane deposition zone 6. The polyurethane foaming solution is a mixture of polyol and isocyanate. This mixture is liquid when poured onto the fiber mat. The polyol and isocyanate mixture polyurethane deposition zone exit and expand to form a polyurethane foam in a curing and cooling zone (not shown herein). Such polyurethane foam is in a solid state upon expansion.
At the outlet of the polyurethane-deposited zone 6, the fibre mat is embedded in polyurethane foam to form a heat shield 7. The driving of the second fiber layer 221 is performed by the weight of the first fiber layer 211 when it is deployed onto the conveyor 5.
The production machine 1 is provided with a second conveyor 5', which second conveyor 5' comprises a second belt 51' like the conveyor 5. The fibre layer disposed on the conveyor 5 is driven on a second conveyor 5', which second conveyor 5' passes through the polyurethane-depositing zone 6. The second conveyor 5' also makes it possible to convey polyurethane foam, which consists of a fibre layer and polyurethane foam, to a cutting device, not shown in this case, for cutting the polyurethane foam into heat insulation panels 7. The presence of the two conveyors 5 and 5 'makes it possible to adjust the conveyor 5 to align the fibre mat from the storage means and to adjust the second conveyor 5' through the polyurethane-depositing zone 6 and to let the polyurethane foam leave.
It should be noted that in alternative embodiments, the production machine 1 may comprise a single conveyor on which the fibre mat is aligned and driven towards the polyurethane-depositing zone 6 to form polyurethane foam which is cut into insulation panels 7 at the outlet of the polyurethane-depositing zone 6.
Fig. 2 schematically shows a part of a production machine 1. In the embodiment shown in fig. 2, the memory devices of the first row 2 comprising the first memory device 21 and the third memory device 22 are almost exhausted.
In order not to stop the production machine 1 for the time required for replacement of the depleted storage device, the production machine 1 comprises a second row 3 of storage devices. Like the first row 2, this second row 3 of storage devices extends longitudinally along the conveyor 5 upstream of the polyurethane-depositing zone 6. It should be noted that the plurality of memory devices of the second row 3, more broadly the second row 3, are arranged above the memory devices of the first row 2 such that the memory devices of the second row 3 are placed above the memory devices of the first row 2.
When the storage devices of the first row 2 are nearly depleted, the fiber mats of the storage devices of the second row 3 are deployed, including a second fiber mat 310 from the second storage device 31 and a fourth fiber mat 320 from the fourth storage device 32. It will be appreciated that each storage device of the second row 3 is associated with one storage device of the first row 2 such that when one storage device of one row is depleted, the fibre mat from the associated storage device of the other row is deployed to continue the fibre mat of the depleted storage device. To maintain continuous production of insulation panels 7, the second fiber mat 310 from the second storage device 31 is aligned and coplanar with the first fiber mat 210 from the first storage device 21 as the first storage device 21 is depleted. Together, when the third storage device 22 is depleted, the fourth fiber mat 320 from the fourth storage device 32 is aligned with the third fiber mat 220 from the third storage device 22.
It should be noted that in the embodiment shown in fig. 2, the storage means of the first row 2 are simultaneously depleted, that is to say the fibre mat rolls are simultaneously fully unwound. Of course, in variations of the embodiments not shown, the alignment of the fiber mats from one row of rolls with the fiber mats from another row of associated rolls may be performed independently from one roll to another and from one row to another.
According to one embodiment, the second fiber mat 310 of the second storage device 31 is positioned coplanar with the first fiber mat 210 of the first storage device 21 except for a short overlap area. Similarly, the fourth fiber mat 320 of the fourth storage device 32 is positioned coplanar with the third fiber mat 220 of the third storage device 22. Thus, the transfer of the fibre mat from one storage means to another in order to form the fibre layer of the heat insulating panel 7 does not alter the mechanical properties of said fibre layer of the heat insulating panel 7.
In the embodiment shown in fig. 2, the longitudinal end 315 of the second fiber mat 310 overlaps the longitudinal end 215 of the first fiber mat 210 such that the first fiber layer 211 is continuous. Similarly, the longitudinal end 325 of the fourth fibrous mat 320 overlaps the longitudinal end 225 of the third fibrous mat 220 such that the second fibrous layer 221 is continuous.
It should be noted that the superposition of the longitudinal ends 315 and 215 of the second and first fibre mats 310 and 210 and/or the superposition of the longitudinal ends 325 and 225 of the fourth and third fibre mats 320 and 220, respectively, form a first fibre layer 211 and a second fibre layer 221 extending over a length of at most 1500mm in order to maintain a constant mechanical performance over the entire insulation panel 7.
Coplanarity of the fiber mats forming the first and second fiber layers 211 and 221 may also be achieved by juxtaposing the longitudinal ends 315 and 215 of the second and first fiber mats 310 and 210 and/or the longitudinal ends 325 and 225 of the fourth and third fiber mats 320 and 220, respectively. This juxtaposition of the fibre mats to form the fibre layers of the insulation panel 7 creates a space of at most 1500mm between the fibre mats which cannot be exceeded in order not to alter the mechanical properties of the insulation panel 7. Fig. 3 schematically shows a cross-section of the heat shield 7 along the axis L.
It should be noted that the insulating panel 7 has the stacking and juxtaposition of the fiber mats forming the fiber layers as shown in fig. 3 for the purpose of facilitating a relative understanding of the arrangement of the fiber mats forming the fiber layers.
Fig. 3 shows in more detail this arrangement of the fibre mats forming the fibre layers of the heat shield 7. The first fibrous layer 211 has a superposition of the longitudinal ends 215 of the first fibrous mat 210 and the longitudinal ends 315 of the second fibrous mat 310. The stack extends over a region 212, the region 212 extending up to 1500mm.
The second fibrous layer 221 has a juxtaposition of a longitudinal end 225 of the third fibrous mat 220 and a longitudinal end 325 of the fourth fibrous mat 320. This juxtaposition extends over a region 222, the region 222 extending a distance approaching zero.
Fig. 3 also shows a third fiber layer 231. The third fibrous layer 231 has a fifth fibrous mat 230 positioned coplanar with the sixth fibrous mat 330. The fifth fiber mat has a longitudinal end 235 positioned in alignment with the longitudinal end 335 of the sixth fiber mat 330. The longitudinal ends 235 of the fifth fiber mat 230 and the longitudinal ends 335 of the sixth fiber mat 330 are separated by a region 232, the region 232 being at most 1500mm.
It should be noted that in order to ensure proper mechanical strength of the insulating panel 7, the regions 212, 222 and 232 must be separated by at least 50mm.
The distance that the two fibre mats forming the same fibre layer extend in superposition can be controlled by fixing together the two fibre mats forming said fibre layer of the heat insulating panel 7.
For this purpose, fig. 4 shows a device for joining two fibre mats forming the same fibre layer. The coupling means 4 are able to fix two co-planar fibre mats together, forming a fibre layer. In the embodiment shown in fig. 4, the first fiber mat 210 is secured to the second fiber mat 310 by a binding device 4 a. The binding device 4a comprises two jaws between which the first fibre layer 211 extends, more specifically the portion of the first fibre mat 210 and the second fibre mat 310 of the first fibre layer 211 that overlap extends between the two jaws. On each jaw, the binding device 4a comprises a series of staples 41 directed towards the first fibre layer 211, the staples 41 being able to fix the first fibre mat 210 to the second fibre mat 310 when the jaws of the binding device 4a are in the closed position.
In the embodiment shown in fig. 4, the third fibrous mat 220 is secured to the fourth fibrous mat 320 by a thermal bonding means 4 b. Like the binding device 4a, the thermal bonding device 4b comprises two clamping jaws between which the second fibre layer 221 extends, more specifically the portion of the second fibre mat 221 between which the third fibre mat 220 and the fourth fibre mat 320 overlap. The thermal bonding means 4b comprises a plate 42 at the portion of each jaw facing the second fibrous layer 221. These plates 42 allow to heat the polymer film 43, which under thermal effect allows to fix the third fibre mat 220 to the fourth fibre mat 320.
It should be noted that the jaws of the stapling device 4a and the thermal bonding device 4b can be opened to allow the fibre layers to extend between the jaws and can be closed for stapling and thermal bonding with controlled pressure and controlled temperature, respectively. It should be appreciated that the coupling device 4 makes it possible to secure the longitudinal end 315 of the second fibrous mat 310 to the longitudinal end 215 of the first fibrous mat 210 and/or the longitudinal end 325 of the fourth fibrous mat 320 to the longitudinal end 225 of the third fibrous mat 220.
Fig. 5 schematically shows a production machine 1 comprising means 8 for coplanar positioning of fibre mats of the same fibre layer. The coplanar positioning means 8 take the form of a plurality of members 8a, these members 8a protruding from the conveyor 5 in a direction substantially orthogonal to the direction of extension of the conveyor 5. It will thus be appreciated that the production machine 1 is configured such that the two constituent fibre mats of the fibre layers are coplanar.
These members 8a are distributed longitudinally and transversely over the belt 51. The dimensions of these members 8a are such that they can pass through the fibre mat without altering the mechanical properties imparted to the insulating panel 7 by the fibre mat. In the embodiment shown in fig. 5, the second fiber mat 310 is stacked and positioned coplanar with the first fiber mat 210. Likewise, fourth fiber mat 320 is stacked and positioned coplanar with third fiber mat 220. In the embodiment shown in fig. 5, the member 8a takes the shape of a finger protruding from the belt 51 of the conveyor 5. These members 8a pass through the fibre mat in order to drive them in the longitudinal direction and in a coplanar manner with each other. It will be appreciated that the member 8a then makes it possible to drive different fibre mats forming different fibre layers to the polyurethane-depositing zone 6.
It should be noted that the member 8a is retractable along the conveyor 5. When the members 8a reach the transport member 53 closest to the polyurethane-depositing zone 6, these members 8a lie on the belt 51. This retraction movement is such that the fibre mat is not damaged when the member 8a is retracted, as shown in figure 5. By providing such retraction means it is ensured that the fibre mat does not risk remaining attached to the belt 51 of the conveyor 5.
Fig. 6 schematically shows a production machine 1 comprising a variant of the device 8 for coplanar positioning of fibre mats of the same fibre layer as shown in fig. 5.
In the embodiment shown in fig. 6, the coplanar positioning means 8 are a plurality of channels 8b that guide the fibre mat to the conveyor 5. These channels 8b have grooves in which the fibre mats are placed and extend to the conveyor 5. It should be noted that each channel 8b is associated with one storage device such that the fibre mats of the storage devices of the second row 3 are positioned in alignment with the fibre mats of the storage devices of the first row 2.
The present invention clearly achieves the set aim by proposing a method for continuously manufacturing insulation panels which eliminates the machining of the longitudinal ends of the fibre mats and limits the downtime of the production machine.
The invention is not limited to the means and arrangements specifically described and illustrated, however, and is also applicable to all equivalent means or arrangements and any combination of such means or arrangements.

Claims (25)

1. A method for manufacturing a heat insulating panel (7) comprising polyurethane foam and at least two superimposed fibre layers (211, 221) embedded in the polyurethane foam, the method being carried out by means of a production machine (1) comprising at least one conveyor (5), a polyurethane deposition zone (6), a first fibre mat storage means (21) and a second fibre mat storage means (31) associated with the first storage means (21) for producing a first fibre layer (211), the production machine (1) comprising a third fibre mat storage means (22) and a fourth fibre mat storage means (32) associated with the third storage means (22) for producing a second fibre layer (221), the manufacturing method being implemented:
-at least a first step during which a first fibrous mat (210) from the first storage means (21) and a third fibrous mat (220) from the third storage means (22) are superposed on the conveyor (5),
-at least a second step during which a second fibrous mat (310) from the second storage means (31) and a fourth fibrous mat (320) from the fourth storage means (32) are positioned coplanar with the first fibrous mat (210) and the third fibrous mat (220), respectively.
2. The method for manufacturing a heat shield (7) according to claim 1, characterized in that the longitudinal end (315) of the second fiber mat (310) and the longitudinal end (215) of the first fiber mat (210) are stacked and/or the longitudinal end (325) of the fourth fiber mat (320) and the longitudinal end (225) of the third fiber mat (220) are stacked.
3. A method for manufacturing a heat insulating panel (7) according to claim 2, characterized in that the superposition of the longitudinal ends (215, 225, 315, 325) extends over a length of at most 1500mm, preferably over a length of at most 1000mm.
4. A method for manufacturing a heat insulating panel (7) according to any of claims 1-3, characterized in that the manufacturing method performs at least a third step during which at least the second fibrous mat (310) is fixed to the first fibrous mat (210) and/or the fourth fibrous mat (320) is fixed to the third fibrous mat (220).
5. A method for manufacturing a heat insulating board (7) according to claim 4, characterized in that the fixation between the fibre mats is ensured by a binding step.
6. A method for manufacturing a heat insulating board (7) according to any of claims 4 and 5, characterized in that the fixation between the fibre mats is ensured by a thermal bonding step.
7. The method of manufacturing a heat shield (7) according to claim 1, wherein the longitudinal ends (315) of the second fiber mat (310) and the longitudinal ends (215) of the first fiber mat (210) are spaced apart by a distance of at most 1500mm and/or the longitudinal ends (325) of the fourth fiber mat (320) and the longitudinal ends (225) of the third fiber mat (220) are spaced apart by a distance of at most 1500mm.
8. The manufacturing method according to any one of claims 1 to 7, the production machine (1) comprising means (8, 8a, 8 b) for co-planar positioning of the fibre mats, characterized in that the co-planar positioning means (8, 8a, 8 b) are used to co-plane the second fibre mat (310) with the first fibre mat (210) and/or the fourth fibre mat (320) with the third fibre mat (220).
9. A method of manufacturing according to any one of claims 1 to 8, characterized in that the number of fibre mats incorporated in the heat insulating panel (7) is equal to the number of fibre mats from the first storage means row (2) or the second storage means row (3) plus or minus one fibre mat.
10. A production machine (1) for a heat insulation board (7) comprising polyurethane foam and at least two fibre mats arranged as superimposed fibre layers (211, 221) embedded in the polyurethane foam, the production machine (1) comprising a conveyor (5), a polyurethane deposition zone (6), a first fibre mat storage means (21) and a second fibre mat storage means (31) associated with the first storage means (21) for producing a first fibre layer (211), the production machine (1) comprising a third fibre mat storage means (22) and a fourth fibre mat storage means (32) associated with the third storage means (22) for producing a second fibre layer (221).
11. The production machine (1) according to claim 10, the fibre layers (211, 221) each comprising at least two fibre mats, characterized in that the production machine (1) comprises a coupling device (4, 4a, 4 b) configured to link together two fibre mats of the same fibre layer (211, 221).
12. The production machine (1) according to any one of claims 10 or 11, the fibre layers (211, 221) each comprising at least two fibre mats, characterized in that at least the first fibre mat storage means (21) and the second fibre mat storage means (31), and/or the third fibre mat storage means (22) and the fourth fibre mat storage means (32) are configured such that the two constituent fibre mats of the fibre layers are coplanar.
13. The production machine (1) according to any one of claims 10 to 12, characterized in that it comprises means (8, 8a, 8 b) for coplanar positioning of the fibre mats of the same fibre layer (211, 221).
14. The production machine (1) according to claim 13, characterized in that the coplanar positioning means (8) are formed by a plurality of members (8 a) protruding from at least one face of the conveyor (5) facing the fibre mat forming the fibre layer (211, 221).
15. The production machine 1 according to any one of claims 10 to 13, wherein the coplanar positioning means (8) are formed by a plurality of channels (8 b), the channels (8 b) having grooves configured to guide the fibre mat to the conveyor (5).
16. The production machine (1) according to any one of claims 11 to 15, characterized in that it comprises at least two rows (2, 3) of storage means, each row (2, 3) comprising a plurality of storage means (21, 22, 31, 32) and each row extending along the conveyor (5).
17. The production machine (1) according to claim 16, characterized in that the rows (2, 3) of storage means (22, 21, 31, 32) are arranged vertically one above the other.
18. A heat shield (7) comprising polyurethane foam and at least two superimposed fiber layers (211, 221) embedded in said polyurethane foam, characterized in that at least one of said fiber layers (211, 221) has a first fiber mat (210) coplanar with a second fiber mat (310).
19. The heat shield (7) of claim 18 wherein said first fibrous mat (210) is integral with said second fibrous mat (310).
20. The heat shield (7) of claim 19 including at least one staple connecting said first fibrous mat (210) to said second fibrous mat (310).
21. The heat shield (7) of claim 18 wherein said heat shield comprises a thermally bonded material connecting said first fibrous mat (210) to said second fibrous mat (310).
22. The heat shield of any of claims 18-21 wherein the longitudinal ends of the first fiber mat (210) and the longitudinal ends of the second fiber mat (310) are stacked.
23. A heat shield according to claim 22, wherein the stacking of the longitudinal ends extends over a length of at most 1500mm, preferably at most 1000mm.
24. The heat shield of claim 18 wherein the longitudinal ends of the second fibrous mat (310) and the longitudinal ends of the first fibrous mat (210) are spaced apart a distance of up to 1500mm, preferably 1000mm.
25. The insulation panel (7) according to any of claims 18 to 23, wherein the fibers of the fiber mat are glass fibers.
CN202211656926.7A 2021-12-22 2022-12-22 Method for continuously producing heat insulation board by production machine Pending CN116408992A (en)

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FR2114246A FR3130676B1 (en) 2021-12-22 2021-12-22 Method of continuous production of an insulating panel by a production machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867494A (en) * 1973-03-06 1975-02-18 Owens Corning Fiberglass Corp Method and apparatus for producing fiber reinforced organic foam
US3881972A (en) * 1973-10-02 1975-05-06 Mc Donnell Douglas Corp Continuous process and machine
US5834082A (en) * 1992-05-04 1998-11-10 Webcore Technologies, Inc. Reinforced foam cores and method and apparatus of production
KR100416834B1 (en) 2001-07-05 2004-02-05 주식회사 한국화이바 A making method and apparatus for the glass fiber reinforced polyurethane foam included continuous strand mat
FR3094451B1 (en) * 2019-03-26 2022-12-23 Gaztransport Et Technigaz Polyurethane/polyisocyanurate foam block for a thermal insulation block for a tank and process for its preparation
FR3099077B1 (en) * 2019-07-23 2022-06-10 Gaztransport Et Technigaz Method of manufacturing a wall for a sealed and thermally insulating tank

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