CN108136465A - For manufacturing the method for multi-layered composite pipe - Google Patents
For manufacturing the method for multi-layered composite pipe Download PDFInfo
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- CN108136465A CN108136465A CN201680051094.2A CN201680051094A CN108136465A CN 108136465 A CN108136465 A CN 108136465A CN 201680051094 A CN201680051094 A CN 201680051094A CN 108136465 A CN108136465 A CN 108136465A
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- external
- extruder
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Links
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 239000002131 composite material Substances 0.000 title claims abstract description 10
- 239000010410 layer Substances 0.000 claims abstract description 176
- 229910052751 metal Inorganic materials 0.000 claims abstract description 59
- 239000002184 metal Substances 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 47
- 239000011241 protective layer Substances 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims description 21
- 239000004033 plastic Substances 0.000 claims description 18
- 229920003023 plastic Polymers 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000000047 product Substances 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000011265 semifinished product Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001336 alkenes Chemical group 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/154—Making multi-wall tubes
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- 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
- 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
- B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
-
- 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
- B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
- B29K2305/02—Aluminium
-
- 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
- B29K2995/0037—Other properties
- B29K2995/0065—Permeability to gases
- B29K2995/0067—Permeability to gases non-permeable
-
- 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
- B29K2995/0037—Other properties
- B29K2995/0068—Permeability to liquids; Adsorption
- B29K2995/0069—Permeability to liquids; Adsorption 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of method for manufacturing multi-layered composite pipe, the multi-layered composite pipe has：For end gas by intermetallic metal cutoff layer, guide medium internal layer and exterior cover sheets; wherein; metal cutoff layer is configured to the cutoff layer or metal tube that peripherally direction is closed; internal layer is expressed by internal main extruder in tubular cutoff layer; wherein, internal original material is directed to the internal main extruder, and exterior cover sheets are expressed by external main extruder on cutoff layer; wherein, external original material is introduced into external main extruder.It provides herein, is provided with the length weight of multiple tube（LM1）Adjusting, wherein, adjusting at least have steps of：By total throughput（n、rs）It is preset as the inside throughput of internal original material（n2、rs2）With the external throughput of external original material（n6、rs6）Summation（St1）；By measure overall diameter and adjust for protective layer external throughput（n6、rs6）To adjust the overall diameter of protective layer（St2、St3、St4、St5）；From total throughput（n、nm）With adjusted external throughput（n6、nm6）Determine internal throughput（n2、rs2）（St6）；And adjust internal throughput（n2、rs2）（St6、St7、St8、St9）.
Description
Technical field
The present invention relates to for manufacturing the method and apparatus of multi-layered composite pipe.
Background technology
Such multiple tube is particularly for direct fluids or gas, and the liquid or gas phase are for ambient enviroment or outside
Space will reliably seal.Herein, multiple tube has intermetallic metal gas cutoff layer（Sperrschicht）, in particular, for example
The oxygen cutoff layer constructed by aluminium.Therefore intermetallic metal cutoff layer forms metal tube, the metal tube is reliably blocked in radial direction side
Upward gas passes through.Radially cutoff layer or metal tube internal structure have guiding medium internal layer, the guiding medium
Internal layer is for example configured to aqueous（wässrige）The internal layer for drawing away water of medium is also configured to guide other liquid
Body such as gasoline, solvent etc..Exterior cover sheets are applied on metal cutoff layer or metal tube.Guide the internal layer of medium and external guarantor
Sheath usually squeezes out（extrudiert）For the plastic layer being for example made of polyethylene or also polyamide.In order to preferably attached
The property is applied with internal adhesion enhancement layer between the internal layer of metal cutoff layer and guiding medium
（Haftvermittlerschicht）；When using polyethylene as guiding the material of the internal layer of medium, internal adhesion
Enhancement layer may, for example, be based on polyethylene.Correspondingly, external Adhesion enhancement is applied on the outside of metal cutoff layer
Layer is for the Adhesion enhancement for exterior cover sheets.
The manufacture of entire plastic-metal composite pipe can carry out in the manufacturing method of single-stage, in the manufacturing method, gold
Belong to band deform and in most cases safely overlappingly（sicherheitsüberlappt）Longitudinal measure, in some cases
It does not dock overlappingly（stumpf）Welding, to construct metal tube, and directly next by internal adhesion enhancement layer and internal layer
It is expressed into metal tube and continues external adhesion enhancement layer and protective layer being expressed on metal tube.Herein, advantageously
Inner and outer layer is used for using identical or very similar plastics.
Therefore in the manufacturing method of the single-stage, the extrusion of flow of metal and other layer continuously carries out shortly, mode
It is that metal tape is configured to pipe and such as overlapping welding around extrusion tool and the two internal layers are extruded
（einextrudiert）Into the metal tape newly shaped and the two outer layers are extruded（aufextrudiert）To new forming
Metal tube on.
EP 0353977 A1, EP 0581208 A1 and 00/44546 A1 of WO describe such multiple tube or for it
The method and device of manufacture.
Forming and overlapping welding for the manufacturing process especially metal tape crucial in technique.In forming technology
Fluctuation cause overlapping fluctuation of different size and therefore leading to metal pipe diameter.
Modified method for manufacturing plastic-metal composite pipe is described in 1986798 A1 of EP.Here, it is golden
Belonging to layer is generated by the band for shaping and welding, but is seamlessly squeezed out by squeezing metal wire across shaping nozzle.Equally
Herein, production technology is subjected to fluctuating, and the fluctuation leads to the fluctuation in the size of metal layer.
Because internal layer and outer layer are in the manufacturing process of single-stage in production line（inline）Led to the material of fixed adjustment
Excessive add in process squeezes out, so the diameter of the fluctuation of metal layer mutually shall mean that the wall thickness in single layer continues to fluctuate
When entire pipe diameter fluctuation.The fluctuation of metal tube overall diameter is for instance in the range of 0.2mm, this is in pair of 0.15mm
It may lead to very high waste product in a manufacturing process in the case of the permitted gross tolerance of multiple tube overall diameter.
However herein, the measurement in technology in such one-stage process and inspection are very problematic
's.Other than by means of the method for the consumption of such as X-ray examination, metal layer usually prevents from measuring internal layer.
Substantially, weight（gravimetrische）Dispensing especially also has in introducing plastics original material for plastic tube
It is known during multilayer plastic pipe.This weight dispensing usually adjusts the conveying of the quality throughput, i.e. original material of extruder
Rate.Therefore with reference to the measurement or adjusting of the speed of production pipe, length weight is adjusted（Rice adjustment of weight）It is possible.
In addition, the external calibration for fixing pipe overall diameter is known.
However, in the plastic tube of metal enhancing, it is impossible to external calibration is carried out, because rigid metal layer does not allow to mould
Expect melt setting at calibration portion.It stills remain in manage in the case of for the metal layer diameter fluctuation while in inside
Overall diameter and interior diameter permission tolerance in, guide the internal layer of medium and exterior cover sheets be generally configured in tolerance area
Middle part wall thickness compromise.However herein, used material is more than required and straight in the metal layer in inside
Stronger fluctuation in diameter also always causes above or below the allowable tolerance for multiple tube.
Invention content
The object of the present invention is to provide for manufacturing the method and apparatus of multi-layered composite pipe, they are realized reliably simultaneously
And still save the manufacture of material.
This task is solved by the method according to claim 1 and device according to claim 19.It also provides herein
The multiple tube that can be manufactured by this method.
It can especially be performed according to the method for the present invention using the apparatus according to the invention.The apparatus according to the invention is outstanding
It can be arranged for implementing according to the method for the present invention.
According to present invention accordingly provides a kind of adjusting methods, wherein, the outside for constructing the exterior cover sheets leads to
The inside throughput of internal layer excessive and for construction guiding medium is adjusted or dispensing, wherein, throughput is included described
In adjusting.
Herein, it is carried out first by the measurement that can be well realized in the measuring technique of the overall diameter of exterior cover sheets
Therefore the adjusting of exterior cover sheets, the exterior cover sheets advantageously also illustrate that the overall diameter of entire multiple tube.Herein, pass through
Overall diameter and the external throughput of adjustment are measured to carry out the adjusting of the external throughput of exterior cover sheets.
Then, the inside throughput of internal layer is depended on to the current external throughput previously adjusted to match.Therefore, it is used for
The internal theory throughput of internal layer can be formed and be adjusted depending on the adjusting of exterior cover sheets currently respectively.Inside passes through
The adjustment of amount can be by adjusting or going back simple poor formation（Differenzenbildung）Come carry out.
According to the present invention therefore it is seen that, pass through reliable measurement parameters（That is, exterior cover sheets or multiple tube
More particularly to（Laser）The overall diameter of optical measurement and internal throughput and external throughput）Realizing reliably and reduce material makes
Adjusting, and it is unnecessary that it for example to internal layer directly measure by X ray and the expensive methods of other consumption.
Some advantages are realized according to the present invention.The total length weight of multiple tube can be kept as according to the present invention it is small and
Reliable adjustment.In the wall thickness increase of exterior cover sheets, the reduction of the wall thickness of internal layer thus correspondingly can be directly adjusted,
To match total length weight, and the wall thickness of hour adjustment internal layer can be subtracted in the wall thickness of exterior cover sheets on the contrary
Increase.Therefore, material consumption, weight and cost reduction.In addition it can also follow limited（enge）It manufacturing tolerance and avoids
Produce waste product.
In addition, it can be performed according to the method for the present invention with device with small consumption, because of dispensing, especially weight dispensing pair
It is usually after all common in internal layer and exterior cover sheets, and relevant measuring technique is not needed to including identified throughput
Consumption.Equally, for example, by（Laser）Optical measurement mechanism is not associated with to measure overall diameter with larger consumption.More precisely,
Optical measurement in this way can also determine and check out-of-roundness or ovality by the measurement in multiple circumferential locations,
So as to fulfill further quality assurance.
Therefore, the salient point of multiple tube constructed according to the invention especially also reside in its layer and especially its total length
The constant height of weight.Therefore the multiple tube can by thin-walled construct or in the case of pre-set tolerance also with very
Limited tolerance manufacturing.
It, first will be for the two main extruders according to an advantageous structural scheme（That is, for squeezing out internal layer
Internal main extruder and for squeezing out the external main extruder of exterior cover sheets）Total throughput is determined and as pre-
If it is provided.This total throughput can be especially directly from the required total length weight of multiple tube（Total meter Chong Liang）Really
It is fixed.By introduced metal tape for example in the metal tube by the overlapping welding manufacture of metal tape（Independent of the width of overlapping
Degree）, the value of the length weight of metal tube is known.In the situation for the overall diameter for measuring protective layer from the first adjusting method
In lower adjusted external throughput, it can then be respectively formed and be used as the current theoretical value of internal throughput default
Total throughput and current external throughput between difference formed, thus after for example pass through the snail for manipulating internal main extruder
Bar rotating speed is adjusted or is also conditioned.
The adjustment of internal throughput and external throughput can carry out in various embodiments.One embodiment is led to
Meausring apparatus is crossed using weight dispensing, the meausring apparatus weighs continuous original material and it is thus determined that introducing rate is used as often
The quality of time.This, which is introduced into, to be carried out in free-falling, so as to make original material, such as plastic powders, plastic grain or
Plastic beads falls to internal main extruder or external main extruder from tank by corresponding meausring apparatus, described interior
The rotating speed of portion's main extruder or external main extruder is constantly adjusted as follows so that desired inside and outside throughput quilt
Accurately realize.In such embodiment, thus total throughput can be arranged to the dimension of every temporal quality
（Dimension）Total transfer rate.
According to another embodiment, Melt Pump（Schmelzepumpen）It is described molten available for the two main extruders
Body pumps use in corresponding extruder worm screw and extruder nozzle（For squeezing out the annular gap nozzle of annular material）Between.This
Kind Melt Pump can be especially configured to gear pump and be distinguished by the very constant volume throughput unrelated with rotating speed,
And therefore also reside in each revolution of quality throughput.
If identical Melt Pump is used for internal main extruder and external main extruder, then therefore total throughput can
To be arranged to total rotating speed, i.e., the summation of inner and outer rotating speed；Otherwise, it is used to determine the situation of total throughput in consideration matching factor
Under, the Melt Pump with every turn of different throughputs can also be used.Therefore, Melt Pump is manipulated simultaneously by the Regulate signal of control mechanism
And the corresponding rotating speed of adjustment.It recognizes herein, such as adjusts the rotating speed of extruder worm screw without the additional heavy of throughput
The weighing of amount may be inadequate if necessary because its its quality throughput is not sufficiently independent of rotating speed, but by
Stagnation pressure in front of extruder nozzle（Staudruck）Or the reflux of extruder nozzle is influenced.
In addition it recognizes, in many structural schemes, adhesion enhancement layer is included and is not necessarily to first, because
Do not contribute to total length weight in related degree, and the variation of metal tube is not also related for the adhesion enhancement layer
Range on had an impact in terms of the variation of its wall thickness.
Alternatively, however or in special structural scheme, the adjusting of adhesion enhancement layer can be included together.
Description of the drawings
Next the present invention is illustrated in further detail in terms of some embodiments by attached drawing.Wherein：
Fig. 1 shows the perspective cut-away schematic view of five layers of multiple tube according to the embodiment of the present invention；
Fig. 2 shows for manufacturing the device of multiple tube；
Fig. 3 shows the flow chart of the method according to the present invention for being used to manufacture multiple tube；And
Fig. 4 shows the embodiment through modification relative to Fig. 2.
Specific embodiment
Five layers of multiple tube 1 are according to Fig. 1（From internal to external）With such as guiding water for guiding medium by for example poly- second
Alkene form internal layer 2, the thickness with such as b3=0.15-0.2mm being applied on internal layer 2 internal adhesion enhancement layer 3,
It is applied to the oxygen cutoff layer 4 being made of metal especially aluminium on internal adhesion enhancement layer 3, the outside being applied on cutoff layer 4
Adhesion enhancement layer 5 and be applied in external adhesion enhancement layer 5 by another example the exterior cover sheets 6 that polyethylene is formed.Layer
2nd, therefore 3,4,5,6 be tubular in itself respectively, and the layer has overall diameter d2, d3, d4, d5, d6 and layer thickness（Wall thickness）
b2、b3、b4、b5、b6。
Adhesion enhancement layer 3 and 5 is for intermetallic metal cutoff layer 4 and corresponding plastic layer namely internal layer 2 or protective layer 6
Adhesion enhancement and for example by based on polyethylene material construct.By multiple tube 1 for more rodent liquid, for example with
During as gasoline line, internal layer 2 can also for example be made of polyamide.
Cutoff layer 4 is configured to the pipe of safe overlappingly longitudinal measure in shown signal；In addition layer 2,3,5 and 6 quilts
It squeezes out.
The manufacture advantageously utilizes shown for manufacturing five layers of multiple tube 1 in fig. 2 in the manufacturing method of single-stage
Device 8 carries out.
Aluminium deformation is happened in deformation mechanism 10, and such as aluminium strip of melter product 11 is introduced continuously into the texturing machine
Structure.Herein, melter product 11 is configured to metal tube around shown extrusion tool 14 in fig. 2, that is, is configured to tubular section
Only layer 4.It if, or the metal tape is formed with overlapping portion 13 and welding is overlapped in weld seam 12 using metal tape
Without 13 ground of overlapping portion merely with 12 butt welding of weld seam.
The internal layer 2 of internal adhesion enhancement layer 3 and guiding medium is expressed into the tubular cutoff layer 4 newly shaped.It is external
Adhesion enhancement layer 5 and exterior cover sheets 6 are expressed on tubular cutoff layer 4.
Extrusion tool 14 with dotted line shows and is respectively provided with single squeeze for layer 2,3,5,6 in fig. 2
Go out machine 14-i, wherein i=2,3,5,6, the extruder is respectively provided with extruder worm screw 15-i and the nozzle with annular gap
16-i, wherein, i=2,3,5,6 are constructed using layer 2,3,5,6 as the annulate lamella around cutoff layer 4.Herein, for two
A outer plastic layer and for two Inner plastic layers nozzle usually respectively alternately（ineinander）It is embodied as common
Extrusion nozzle.
This single-stage manufacturing method is subjected to fluctuation and tolerance.In technique it is crucial be from melter product 11 into
Shape metal tube.Therefore, in the case of shaping with welding metal strips, the change in the width of overlapping portion 13 or the width of weld seam 12
Change the fluctuation for the diameter d4 for leading to the i.e. metal tube of cutoff layer 4.Because internal layer 2 and 3 and outer layer 5 and 6 are in production line in technique
In be attached to squeeze out（zuextrudiert）, so the fluctuation of the diameter d4 of cutoff layer 4（In the layer thickness of no matching internal layer 2
In the case of the b6 of b2 and protective layer 6）Entire pipe diameter d6 is accordingly resulted in when the entire wall thickness of multiple tube 1 fluctuates simultaneously
（The overall diameter of protective layer 6）Fluctuation.
It is accomplished that by device according to fig. 2 and method according to fig. 3, multiple tube is adjusted in the adjusting deviation of permission
1 length weight（Meter Chong Liang, the quality per length unit）LM1, wherein, subtract in the case of the larger diameter d4 of cutoff layer 4
The length weight LM6 of small exterior cover sheets 6 and the length weight LM2 for improving internal layer 2.
Correspondingly, smaller in the diameter d4 of cutoff layer 4, the length weight LM6 of exterior cover sheets 6 is improved
And the length weight LM2 of internal layer 2 is reduced.
Weight dispensing is assigned to the main extruder 14-2 and 14-6 of internal layer 2 and external patent right 6.It according to fig. 2, will be internal
Introduce material 20（Such as plastic grain, plastic powders or plastic beads）It removes from deposit reservoir 21 and claims via inside
Amount device 24 is introduced to internal main extruder 14-2.
The inside meausring apparatus 24 of internal main extruder 14-2 determines introducing rate sr2, such as every temporal quality（kg/
h）Time introduction volume, and export the first measuring signal S1 at control mechanism 30.Material 20 is introduced to be introduced into interior later
Portion main extruder 14-2 is accommodated, fusing by the inside main extruder, its nozzle 16-2 is transported to via its extruder worm screw 15-2
And it extrudes.The rotating speed of extruder worm screw 15-2 determines introducing rate sr2 herein.
Corresponding situation is suitable for external main extruder 14-6：Original material 35 is weighed from deposit reservoir via outside
Device 42 is introduced to external main extruder 14-6, wherein, external meausring apparatus 42 exports the second measuring signal S2 to control mechanism
At 30.
First Regulate signal S3 is output at internal extruder worm screw 15-2 by control mechanism 30 again, and second is adjusted
Signal S4 is output at external extruder worm screw 15-6, is respectively used to adjustment rotating speed and be therefore introduced into rate sr2 and sr6 one
It is a.
In addition, the measurement of constructed multiple tube 1（Such as the measurement of multiaxis overall diameter, especially laser measurement）Utilize light
Learn measuring mechanism 50 preferably three or more be distributed at the position of arrangement and carry out in peripheral direction, protected so as to not only external
The mean outside diameter d6 of sheath 6, and ovality or out-of-roundness can be determined when necessary.Therefore measuring mechanism 50 exports third
For measuring signal S5 at control mechanism 30, the third measuring signal S5 is used to correct the length weight LM6 of exterior cover sheets 6.
In this embodiment, adhesion enhancement layer 3,5 is not essentially adjusted together.The construction of the adhesion enhancement layer passes through
Secondary extruder 16-3 and 16-5 is carried out.This can in the case of without using weight dispensing by adjusting extruder worm screw 15-3 and
The constant rotational speed of 15-5 carries out.When weight dispensing is also used for secondary extruder 16-3 and 16-5, internal adhesion enhancement layer 3
Original material 33 be introduced into inside pair extruder 16-3 via meausring apparatus 22 or corresponded to by inside pair extruder 16-3
The rotating speed of its extruder worm screw 15-3 is accommodated, and measuring signal S6 is output at control mechanism 30, the control machine
Regulate signal S7 is output at internal secondary extruder 16-3 by structure again.Herein preferably via the constant introducing rate of original material 33
Sr3 is predetermined and is kept constant via Regulate signal S7.Correspondingly, the original material 34 of external adhesion enhancement layer 5 passes through
Meausring apparatus 43, which is introduced, to be output to the measuring signal S6 of outside pair extruder 14-5 and meausring apparatus 43 at control mechanism 30,
The control mechanism adjusts constant introducing rate by arriving the Regulate signal S9 at external secondary extruder 14-5 in this embodiment
sr5。
Fig. 3 shows the step of adjusting method.After starting in step St0, carried out in St1 for always introducing rate n's
Default, total introducing rate is formed for the inside introducing rate n2 of internal main extruder 14-2 and for external main extruder
The summation of the external introducing rate n6 of 14-6：
n = n2 + n6。
Next the adjusting of the overall diameter d6 of multiple tube 1 is carried out in step St2 to St5.For this purpose, in step St2, it is first
First the current overall diameter d6_ist of multiple tube 1 or exterior cover sheets 6 is measured and judged by means of measuring device 50
It is then evaluated in step St3.If according to left branch 3a, overall diameter d6_ist is less than lower limiting value d6_u, then following basis
Step St4 will arrive external main extruder by manipulation by means of the second Regulate signal S4 for the rotating speed of extruder worm screw 15-6
The external introducing rate n6 in terms of kg/s of 14-6 is improved；If instead identified overall diameter is determined according to right branch 3b
D6 is more than upper limit value d6_o, then passes through introducing rate n6 outside the second Regulate signal S4 reductions in step St5.In both feelings
Under condition, then overall diameter d6_ist is measured again in step St2 again, and is then evaluated in determination step St3.
If it is determined that current overall diameter d6_ist is located at limiting value d6_u, d6_o according to inferior division 3c in step St3
It is interior, then then to be introduced in step St6 to St9 according to n2=n-n6 into the inside being about to for internal main extruder 14-2
The external introducing rate n6 that rate n2 matchings are currently adjusted.
This is shown as the adjusting of introducing rate n2 in figure 3.
It is set from step St1 first in step St6 thus（angesetzten）Total introducing rate n and in step
External be introduced into rate n6 adjusted in St2-St5 is determined by n2_soll=n-n6_ist in internal main extruder 14-2
The theoretical value n2_soll of portion's introducing rate n2, wherein n6 are as the external introducing rate currently adjusted.Theoretical value n2_soll is subsequent
Draw in step St7, St8 and St9 and returning（in Rückführung auf）It is adjusted during to step St6, is especially conditioned：
It is too small by the inside introducing rate n2_ist of internal main extruder 14-2 if measured in step St7, then according to
Left branch, according to the inside introducing rate n2 that internal main extruder 14-2 is improved by step St8；If instead in step St7 really
Fixed, the inside introducing rate n2 of internal main extruder 14-2 is excessive, then then reduces internal introducing rate n2 according to step St9；The party
Method returns guide to step St6 herein respectively.Thus it is compared in step St7, if
n2_u > n2_ist >N2_o,
Wherein, when meeting the condition, this method is then returned and is put（zurück gesetzt）To before step St2.
Therefore, step St6 to St9 also can simplifiedly be rendered as difference and form n2=n-n6 in principle.
By presetting total introducing rate n in step St1, therefore can the constant total length weight for keeping entire multiple tube 1
Or total meter Chong Liang.
The outer layer thickness of exterior cover sheets 6（Wall thickness）Thus the raising of b6 directly results in mitigates or reduces guiding medium
The internal layer thickness b2 of internal layer 2, and vice versa.
Fig. 4 shows the alternative structural scheme for Fig. 2.According to Fig. 4, to the initial material of main extruder 14-2 and 14-6
The inside throughput of material 20,35 and external throughput are adjusted, but via Melt Pump 60,61, the Melt Pump, which is mounted on, squeezes
Go out machine worm screw 15-2 or 15-6 and extruder nozzle（Annular gap nozzle）Between 16-2 or 16-6.Such Melt Pump 60,61
Be preferably by the constant melt precompression operation of extruder, and be distinguished by it is each revolution of it is very constant with rotating speed without
The volume throughput of pass, i.e., go out in known or inverse（zurückgerechneter）It is also resided in the case of fusant density
Each revolution of quality throughput.
Therefore, Melt Pump 60,61 is utilized according to second embodiment via internal regulation signal S3 and external Regulate signal
S4 is manipulated as follows respectively so that corresponding rotating speed rs2, rs6 of the Melt Pump are adjusted.
In the identical structural scheme of Melt Pump 60 and 61, can according to flow chart in figure 3, in step St1,
Total introducing rate n is replaced to be provided with total rotating speed rs, total rotating speed is expressed as the inner melt pump 60 of internal main extruder 14-2
The summation of the outer rotating speed rs4 of the Melt Pump 61 of interior rotating speed rs2 and external extruder 14-6：
Rs=rs2+rs6,
So as in the flowchart of fig. 3, then in the first regulating loop of step St2 to St5, be adjusted as adjustable parameter
Outer rotating speed rs6 to adjust overall diameter d6 in the margin of tolerance of permission, and then matches interior turn in step St6 to St9
Fast rs2=rs-rs6.
If for internal layer 2 and outer layer 6 using the outer of the interior density p 2 and outer layer 6 with different densities ρ namely internal layer 2
The plastics of density p 6, then this can be considered in the two embodiments by 2/ ρ 6 of correction factor ρ.
Other embodiment can further include the tune of adhesion enhancement layer 3 and 5 respectively in the modification to Fig. 2 and Fig. 4
Section.
Effect for adhesion enhancement layer 3 and 5 is importantly, the thickness of adhesion enhancement layer 3,5 is located at certain reason
By in range, usually 0.1 between 0.2mm.Too thin adhesion enhancement layer does not ensure enough adherency between layers, and
Blocked up adhesion enhancement layer contains the risk of the adherency failure in adhesion enhancement layer.For this reason, adhesive force increases
Variation of the strong layer 3 and 5 for example not with protective layer 6 and the internal layer 2 for guiding medium proportionally matches.Otherwise advantageously, attachment
Power enhancement layer 3 and 5 independent of adhesion enhancement layer 3 and 5 the position in multiple tube 1 always have identical thickness（Stä
rke）（Thickness）B3 or b5, that is, when adhesion enhancement layer shifts outward using more materials, and adhesion enhancement layer 3,
One in 5 uses less material when inwardly displaced.
According to the first structural scheme, more accurate adjust of adhesion enhancement layer 3 and 5 can calculate metal layer 4 multiple
It is carried out in the case of position in conjunction pipe, such as illustrates that hereafter as the variant scheme of the structural scheme of Fig. 2 and 3
Sample.It is provided that thus, Adhesion enhancement portion has the density closely similar with the material for outer layer 6 and internal layer 2.This for
Mostly it is used for the low density linear polyethylene of these service conditions（LLDPE）Or the polyethylene with the heat resistance improved
（PE-RT）It is such situation with being chemically based on for the Adhesion enhancement portion of this structure.
Replace throughput n6 and n2, in regulating loop according to fig. 2 consider have be subordinated to its length weight LMa and
LMi（In terms of kg/m）Two outer layer na and two internal layer ni throughput, wherein：
na = n5 + n6
ni = n2 + n3
And
LMa = LM5 + LM6 = （n5 + n6）/v
LMi = LM2 + LM3 = （n2 + n3）/v
Wherein, v is the draw speed of multiple tube 1.
It can continue to calculate by materials'use determined by the regulating loop described in fig. 2 using for outer layer na
The accurate location of metal layer in multiple tube.The overall diameter d6 of multiple tube 1 is as known to the measuring mechanism 50 persistently measured.
The overall diameter d4 of metal layer 4 can be calculated using length weight LMa and density of material ρ（It is straight equal in adhesion enhancement layer 5
Diameter di5）：
Therefore it can easily calculate, which length weight LM5 and therefore which throughput n5 are in external adhesion enhancement layer
The weight measurement of secondary extruder 14-5 can be passed through in the case of preset layer thickness b5（Gravimetrie）To adjust：
Therefore it calculates for the required length weight LM6 of protective layer 6 and therefore also by amount n6：
LM6 = LMa-LM5
Because the overall diameter d3 of internal adhesion enhancement layer 3 can be calculated by the known thickness b4 of metal layer 4 simultaneously：
d3 = d4-b4
So can the two be determined in the case of the preset thickness b3 of internal adhesion enhancement layer 3 with similar calculation
The length weight LM3 and LM2 of internal layer 3 and 2 and therefore throughput n3 and n2.
Claims (19)
1. for manufacturing multi-layered composite pipe（1）Method, the multi-layered composite pipe has：For end gas by intermediate gold
Belong to cutoff layer（4）, guiding medium internal layer（2）And exterior cover sheets（6）,
Wherein, the metal cutoff layer（4）The cutoff layer or metal tube being closed in peripheral direction are configured to, it will be described interior
Layer（2）Pass through internal main extruder（14-2）It is expressed into tubular cutoff layer（4）In, wherein, internal original material（20）It is directed to
The internal main extruder（14-2）, and
By the exterior cover sheets（6）Pass through external main extruder（14-6）It is expressed into the cutoff layer（4）On, wherein, it is external
Original material（35）It is introduced into the external main extruder（14-6）,
It is characterized in that,
It is provided with the multiple tube（1）Length weight（LM1）Adjusting, wherein, the adjusting at least has steps of：
By total throughput（n、rs）It is preset as the internal original material（20）Inside throughput（n2、rs2）With the outside
Original material（35）External throughput（n6、rs6）Summation（St1）,
By measuring overall diameter（d6）And it adjusts for the protective layer（6）External throughput（n6、rs6）It is described to adjust
Protective layer（6）Overall diameter（d6）（St2、St3、St4、St5）,
From the total throughput（n、nm）With adjusted external throughput（n6、nm6）Determine the internal throughput（n2、
rs2）（St6）, and
Adjust the internal throughput（n2、rs2）（St6、St7、St8、St9）.
2. the according to the method described in claim 1, it is characterized in that, internal layer（2）The original material（20）With it is described
Protective layer（6）The original material（35）It is plastic material, preferably identical plastic material respectively.
3. method according to claim 1 or 2, which is characterized in that in order to construct the metal cutoff layer（4）, by metal
Band（11）Such as aluminium strip is continuously transformed into closed tube and overlappingly longitudinally wound, and in the weight at the edge of the metal tape
Folded region（13）It is middle to connect, especially in weld seam（12）Middle longitudinal measure.
4. method according to claim 1 or 2, which is characterized in that in order to construct the metal cutoff layer（4）, by metal
Band（11）Such as aluminium strip is continuously transformed into closed tube and longitudinally wound to being grounded, and in pair at the edge of the metal tape
By being connected in region, especially in weld seam（12）Middle longitudinal measure.
5. method according to claim 1 or 2, which is characterized in that in order to construct the metal cutoff layer（4）, by metal
Semi-finished product（11）Such as aluminum steel is extruded as seamless pipe by the extruding carried out for example, by the deformation mechanism 10 of nozzle.
6. according to any method of the preceding claims, which is characterized in that
The total throughput（n、rs）It is default carry out in the following manner, i.e.,：
The multiple tube is preset first（1）Total length weight（LM）,
Considering the cutoff layer（4）Length weight（LM4）In the case of, from the total length weight（LM）Middle formation institute
State internal layer（2）With the protective layer（6）Length weight（LM2、LM6）Summation,
From the length weight（LM2、LM6）Summation, the internal layer（2）With the protective layer（6）Solid initial material
Material（20、35）Density and the multiple tube（1）Draw speed（v）Determine the total throughput（n、rs）.
7. according to any method of the preceding claims, which is characterized in that for manufacturing the multi-layered composite pipe（1）
Method be single-stage, wherein, by the cutoff layer（4）During being configured to closed tube or followed by, preferably by having
It is configured to the extrusion nozzle of annular gap（16-2、16-6）Extrusion tool（14）Apply the internal layer（2）With the outer layer
（6）, wherein, the cutoff layer（4）Closed tube surround the extrusion tool（14）Forming.
8. according to any method of the preceding claims, which is characterized in that by the internal original material（20）It arrives
The internal main extruder（14-2）Inside introducing rate（n2）It is adjusted to internal throughput（n2）, and the outside is initial
Material（35）To the external main extruder（14-6）External introducing rate（n2）It is adjusted to external throughput（n6）,
Wherein, the total throughput（n）Be formed as total introducing rate（n）, total introducing rate is formed the internal introducing rate
（n2）With the external introducing rate（n6）Summation.
9. the according to the method described in claim 8, it is characterized in that, internal original material（20）Pass through internal meausring apparatus
（24）, especially weight inside meausring apparatus（24）It introduces to the internal main extruder（14-2）, wherein, the internal introducing
Rate（n2）By manipulating internal extruder supply unit, such as extruder worm screw（15-2）Rotating speed by means of internal regulation signal
（S3）Adjustment.
10. method according to claim 8 or claim 9, which is characterized in that the external original material（35）It is weighed by outside
Device（42）, especially external weights meausring apparatus（42）It introduces to the external main extruder（14-6）, wherein, the outside
Introducing rate（n6）By manipulating external extruder supply unit, such as extruder worm screw（15-6）Rotating speed by means of outside adjust
Signal（S4）Adjustment.
11. method according to any one of claim 1 to 7, which is characterized in that in extruder supply unit, for example squeeze
Go out machine worm screw（14-2、14-6）With the internal main extruder（14-2）With the external main extruder（14-6）Extruder spray
Mouth（16-2、16-6）Between be respectively arranged with Melt Pump（60、61）, wherein, the internal throughput is adjusted to the inside
Melt Pump（60）Interior rotating speed（rs2）And the external throughput is adjusted to the external Melt Pump（61）Outer rotating speed
（rs6）, and the total throughput（rs）It is formed the outer rotating speed（rs6）With the interior rotating speed（rs2）Summation.
12. according to any method of the preceding claims, which is characterized in that the internal throughput（n2、rs2）'s
Adjustment is arranged to difference and is formed or adjusted, wherein, from the total throughput（n、rs）With in the protective layer（6）Overall diameter
（d6）First adjust in the external throughput that adjusts（n6、rs6）Internal theory throughput is determined first（n2_soll、rs2_
soll）（St6）,
Next by the current practical throughput in inside（n2_ist、rs2_ist）With the internal theory throughput（n2_soll、
rs2_soll）It is compared（St7）, and
Next the internal practical throughput is matched more if necessary depending on described（n2、rs2）（St8、St9）.
13. according to any method of the preceding claims, which is characterized in that internal adhesion enhancement layer（3）It is squeezed
Go out to the cutoff layer for being formed the pipe（4）Inside on, the internal layer（2）It is expressed into the internal adhesion enhancement layer
（3）On and/or
External adhesion enhancement layer（5）It is expressed into the cutoff layer（4）On, the exterior cover sheets（6）It is expressed into described
External adhesion enhancement layer（5）On.
14. according to the method for claim 13, which is characterized in that the internal adhesion enhancement layer（3）It is and/or described outer
Portion's adhesion enhancement layer（5）Adjusting the total length weight（LM）Shi Wei is matched or changes.
15. according to the method for claim 13, which is characterized in that the internal adhesion enhancement layer（3）It is and/or described outer
Portion's adhesion enhancement layer（5）Adjusting the total length weight（LM）When be essentially adjusted together.
16. according to the method for claim 15, which is characterized in that by the adhesion enhancement layer（3、5）It adjusts default
Wall thickness（b3、b5）On, mode is, from
The protective layer（6）The utilization measuring mechanism（50）Measured overall diameter（d6）,
For the protective layer（6）With the external adhesion enhancement layer（5）By by the meausring apparatus（42、43）Institute
Determining introducing rate and
The multiple tube（1）Draw speed（v）
It determines in the multiple tube（1）In metal layer（4）Current location,
Wherein, next from the multiple tube（1）Overall diameter（d6）With the metal layer（4）Interior diameter（d3）It sets out,
Measured overall diameter（d6）, the adhesion enhancement layer（3、5）Preset wall thickness（b3、b5）With preset total length weight
Amount（LM1）In the case of calculate the multiple tube（1）Other layer structure（2、3、5、6）.
17. according to any method of the preceding claims, which is characterized in that the overall diameter（d6）Measurement
（St1）As the multiple tube constructed（1）Overall diameter（d6）Optical measurement, such as laser optics measure, especially by
It is multiple be distributed in peripheral direction for considering the position of out-of-roundness to carry out.
18. multiple tube（1）, the multiple tube by manufacturing according to any method of the preceding claims.
19. for manufacturing multi-layered composite pipe（1）Device（8）, described device has：
Control mechanism（30）, for receiving measuring signal（S1、S2、S5、S6、S8）And output regulation signal（S3、S4、S7、
S9）,
Deformation mechanism（10）, for accommodating melter product（11）And deform the melter product（11）, for production
The raw tubular cutoff layer being closed in peripheral direction（4）,
Extrusion tool（14）, the extrusion tool is with internal main extruder（14-2）With external main extruder（14-6）,
In the extrusion method of single-stage, the internal main extruder is used to guide the internal layer of medium（2）It is expressed into the cutoff layer（4）
In, the external main extruder is used for exterior cover sheets（6）It is expressed into the cutoff layer（4）On,
Measuring device（50）, for measuring the protective layer（6）Overall diameter（d6）And export measuring signal（S5）To institute
State control mechanism（30）Place,
Wherein, the control mechanism（30）It is configured for through internal regulation signal（S3）To manipulate the main extrusion in the inside
Machine（14-2）Inside extruder supply unit（15-2）Rotating speed, for adjusting the internal original material（20）Inside
Throughput,
Wherein, the control mechanism（30）It is configured for through external Regulate signal（S4）To manipulate the main extrusion in the outside
The extruder supply unit of machine 15-6（15-5）Outer rotating speed, for adjusting the external original material（20）Outside pass through
Amount,
Wherein, the control mechanism（30）It is configured for adjusting the multiple tube（1）Length weight（LM1）,
Wherein, the adjusting at least has steps of：
By total throughput（n、rs）It is preset as the internal original material（20）Inside throughput（n2、rs2）With the outside
Original material（35）External throughput（n6、rs6）Summation,
By measuring overall diameter（d6）And it adjusts for the protective layer（6）External throughput（n6、rs6）It is described to adjust
Protective layer（6）Overall diameter（d6）,
From the total throughput（n、nm）With adjusted external throughput（n6、nm6）Determine the internal throughput（n2、
rs2）, and
Adjust the internal throughput（n2、rs2）.
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| Application Number | Priority Date | Filing Date | Title |
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| DE102015114637.1A DE102015114637B3 (en) | 2015-09-02 | 2015-09-02 | Method and apparatus for producing a multilayer composite pipe and composite pipe |
| DE102015114637.1 | 2015-09-02 | ||
| PCT/DE2016/100399 WO2017036462A1 (en) | 2015-09-02 | 2016-09-01 | Method for producing a multi-layered composite pipe |
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| CN108136465A true CN108136465A (en) | 2018-06-08 |
| CN108136465B CN108136465B (en) | 2020-04-21 |
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| CN1962245A (en) * | 2005-11-10 | 2007-05-16 | 甘国工 | Production method and device for composite tube of butt welding metal tube and polymer |
| CA2640820A1 (en) * | 2006-02-03 | 2007-08-09 | Uponor Innovation Ab | Making an elongated product |
| EP1986798A1 (en) * | 2006-02-03 | 2008-11-05 | Uponor Innovation Ab | Making an elongated product |
| CN103759080A (en) * | 2014-01-24 | 2014-04-30 | 新兴铸管股份有限公司 | Composite steel-plastic pressure tube and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015114637B3 (en) | 2016-12-29 |
| CN108136465B (en) | 2020-04-21 |
| WO2017036462A1 (en) | 2017-03-09 |
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