WO2014070040A1 - The multilayered intellectual heat expand sleeve of thermoplastic polymer - Google Patents

The multilayered intellectual heat expand sleeve of thermoplastic polymer Download PDF

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Publication number
WO2014070040A1
WO2014070040A1 PCT/RU2013/000550 RU2013000550W WO2014070040A1 WO 2014070040 A1 WO2014070040 A1 WO 2014070040A1 RU 2013000550 W RU2013000550 W RU 2013000550W WO 2014070040 A1 WO2014070040 A1 WO 2014070040A1
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WO
WIPO (PCT)
Prior art keywords
sleeve
threads
reinforcing layer
sleeve according
fibers
Prior art date
Application number
PCT/RU2013/000550
Other languages
French (fr)
Inventor
Dmitry Vyacheslavovich ALYAVDIN
Original Assignee
Alyavdin Dmitry Vyacheslavovich
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Filing date
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Application filed by Alyavdin Dmitry Vyacheslavovich filed Critical Alyavdin Dmitry Vyacheslavovich
Publication of WO2014070040A1 publication Critical patent/WO2014070040A1/en

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Classifications

    • 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 general shape other than plane
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/085—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1652—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section the flexible liner being pulled into the damaged section
    • 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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
    • F16L55/1656—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section materials for flexible liners
    • 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
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester fibres
    • B32B2262/0284—Polyethylene terephthalate [PET] or polybutylene terephthalate [PBT]
    • 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
    • B32B2262/06—Vegetal 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/103—Metal 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
    • 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
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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

Definitions

  • thermoplastic polymer The multilayered intellectual heat expand sleeve of thermoplastic polymer
  • the invention relates to the area of manufacturing products made of modified polymeric materials and can be applied for heat expand products mainly sleeves which are intended for use as a protective material with high resistance, insulating, anticorrosive properties.
  • Imperfection of this method is the impossibility of receiving heat expand pipe capable to increase the diameter 1.5-3 times.
  • heat expand sleeves or pipes are made from thermoplastic polymers capable to increase the overall dimensions in cross-section (diameter) under heating due to the property of «molecular memory of a form».
  • Imperfection of this sleeve is the impossibility of receiving heat expands pipes capable to stand considerable mechanical breaking load in the case of that it is made of a homogeneous polymeric material.
  • Use of technology of a polymeric material modifying by production of a heat expand polymeric sleeve or a pipe allows increasing mechanical strength up to 2 times compare with nonmodified polymer. But these parameters are not enough in the case of application of a heat expand sleeve in trenchless technology of pipelines restoration (in particular at a sleeve tightening in a protected pipe).
  • heat expand sleeve within operating period can be exposed to considerable breaking efforts in view of direct aging and destruction of the main pipeline at the expense of corrosion that can lead to failures on the pipeline.
  • thermoplastic polymer capable to increase the overall dimensions in cross- section at heating due to intellectual property of the modified polymer - «molecular memory of a form», and having the increased mechanical breaking strength, necessary for application of an intellectual heat expand polymeric sleeve at restoration of the pipelines maintained under pressure.
  • Polymer can be modified with the help of chemical or radiating method.
  • the technical result reached at the solution of an objective is increasing the breaking strength of a heat expand sleeve from thermoplastic materials.
  • the multilayered heat expand sleeve solves imperfections mentioned above and consists of at least one polymeric layer and at least one reinforcing layer executed from threads of fiber or a metal wire and materials where each layer are chosen according to the condition of increasing the mechanical stability of the heat expand sleeve and the quantity of layers is chosen depending on application of the heat expand sleeve.
  • Modified polymer can be used as a material of a polymeric layer.
  • Polyolefin can be used as a material of a polymeric layer.
  • Polyethylene can be used as a material of a polymeric layer.
  • the reinforcing layer can be made of technical threads - lavsan, kapron, aramid.
  • the reinforcing layer can be made in the form of at least two fibers or the threads bound with formation of extended structure with possibility of axial stretching.
  • Fibers or threads of a reinforcing layer can be made of a natural material.
  • Fibers or threads of a reinforcing layer can be made of a synthetic material.
  • Fibers or threads of a reinforcing layer can be made of polyester or polyamide or a polyolefin.
  • Fibers or threads of a reinforcing layer can be made of polyethylene terephthalate.
  • Fibers or threads of a reinforcing layer can be made of aliphatic polyamide.
  • Fibers or threads of a reinforcing layer can be made of nylon.
  • Fibers or threads of a reinforcing layer can be made of aromatic polyamide.
  • Fibers or threads of a reinforcing layer can be made of aramid combination.
  • Fibers or threads of a reinforcing layer can be made of poli-n-fenilentereftalamid.
  • Fibers or threads of a reinforcing layer can be made of poliparafenilen-tereftalamid.
  • the reinforcing layer can be made in the form of a spiral or a braid from a metal wire.
  • Fig.l the cross-section of the three-layered reinforced intellectual heat expand polymeric sleeve
  • Fig.2 the longitudinal section of the three-layered reinforced intellectual heat expand polymeric sleeve.
  • the three-layered reinforced intellectual heat expand polymeric sleeve consists of an inside layer 1 made of the modified polymer of a reinforcing layer in the form of a braid of technical threads 2 or a metal wire and an external layer 3 made of modified polymer.
  • the sleeve can be fabricated by the following way.
  • Sleeve made of thermoplastic polymer can be extruded by any known design extruder which has a possibility to manufacture multilayered pipe with reinforcing one or several layers, then the subject is being modified by known ways such as radiation exposure, electronic accelerator, chemical modifying.
  • the received modified preform is transform by heating up to a plastic consistence of a polymer material.
  • the profile of the pipe is profiled in the axial, radial directions and in cross-section up to 3 times of the initial diameter of the preform by pulling rollers through main calibers.
  • the deformed pipe-sleeve passes through a cooling bath to fix its size, profile and tension which have arisen in a material of polymer and the reinforcing layer after extracting and profiling.
  • After cooling the received multilayered intellectual heat expand sleeve is taken up on the coil of an intake or is cut on measured pieces and is packed.
  • the deformed multilayered heat expand sleeve made in such a way possesses «effect of shape memory » and at repeated heating to plasticization temperature (80-140 °C) modified polymer gets its initial sizes and shapes. While modifying polymer its physicomechanical characteristics change, so wear resistance raises 15-35 times that allows to apply such sleeves as wearproof coverings in products with especially hard working conditions. One or several reinforcing layers increase mechanical durability of a heat expand sleeve several times depending on an applied material.
  • Example 1 At co-extrusion line for production of composite polymeric multilayered pipes strengthened by winding from a spiral steel wire of pipes of STR series at temperature 140 C° they extrude 3- layered polymeric reinforced sleeve from high-pressure polyethylene of mark 153K. Same time they add 5 % of vinyltrimethoxysilane (simplified formula C 2 H 4 Si (OR) 3) initially to granules of polyethylene for further providing of silane updating of polymer.
  • the received sleeve reinforced by a spiral steel wire with external diameter of 40,0 mm and thickness of 3,0 mm is a subject for updating process completion to processing within 5 hours in a water bath with water temperature 95°C.
  • the received stretched sleeve 1 stretch through a cooling bath with water temperature 20 C.
  • a sleeve has ability to "remember" the initial sizes when heating to temperature of 170 °C.
  • the received sleeve when heating to the specified temperature can increase in diameter up to 40 cm decreasing respectively at length 1,7 times.
  • Example 2 On the 3 -layered co-extrusion line of STR series for production of composite, strengthened by winding from a synthetic thread of pipes at temperature of 145 °C they extrude polymeric reinforced sleeve from high pressure polyethylene of mark 153-10K. The received sleeve with external diameter of 21,0 mm and wall thickness of 3,0 mm subject to gamma irradiation on irradiating installation to the absorbed dose of 10 ⁇ 1 Mrad.
  • the modified sleeve pass through capacity with the glycerin heated up to temperature of 145 °C and by means of pulling device at speed 2,0M / min and effort of 10 kg sec stretch the warmed-up sleeve from capacity to caliber in which sleeve reduces its diameter, thus caliber is cooled with turnaround water supply at temperature of 20 °C and has openings on the surface for ensuring vacuum pressing of an external wall of a sleeve to an internal wall of caliber.
  • At drawing of the warmed- up sleeve through caliber there occurs its extract up to diameter of 10,0 mm, thus there is an axial lengthening of tubular preform approximately 2,5 times.

Abstract

The invention relates to the area of manufacturing products made of modified polymeric materials and can be applied for heat expand products mainly sleeves which are intended for use as a protective material with high resistance, insulating, anti corrosive properties. The sleeve consists of at least one polymeric layer and at least one reinforcing layer made of threads of fiber or a metal wire. The invention increases mechanical tensile strength of a heat expand sleeve and can be applied for protection of internal surfaces of pipes and pipelines of different use and also for trenchless restoration of worn-out pipelines of various diameters.

Description

The multilayered intellectual heat expand sleeve of thermoplastic polymer
The invention relates to the area of manufacturing products made of modified polymeric materials and can be applied for heat expand products mainly sleeves which are intended for use as a protective material with high resistance, insulating, anticorrosive properties.
There is the way of stretching of hollow shaped products from heat shrink materials according to copyright certificate of USSR No. 1232492 including extrusion of a pipe from a thermoplastic polymeric material, its modifying, for example radiating, heating of a pipe to a plastic consistence, expansion diameter of a pipe in the calibrating device, pipe cooling to room temperature. Application of the modified polymers in this way allows receiving products with high resistance properties.
Imperfection of this method is the impossibility of receiving heat expand pipe capable to increase the diameter 1.5-3 times.
As a prototype they chose heat expand sleeve according to the Patent of Russian Federation RU2385228 in which heat expand sleeves or pipes are made from thermoplastic polymers capable to increase the overall dimensions in cross-section (diameter) under heating due to the property of «molecular memory of a form».
Imperfection of this sleeve is the impossibility of receiving heat expands pipes capable to stand considerable mechanical breaking load in the case of that it is made of a homogeneous polymeric material. Use of technology of a polymeric material modifying by production of a heat expand polymeric sleeve or a pipe allows increasing mechanical strength up to 2 times compare with nonmodified polymer. But these parameters are not enough in the case of application of a heat expand sleeve in trenchless technology of pipelines restoration (in particular at a sleeve tightening in a protected pipe). Besides heat expand sleeve within operating period can be exposed to considerable breaking efforts in view of direct aging and destruction of the main pipeline at the expense of corrosion that can lead to failures on the pipeline.
Problem to be solved by the invention is manufacturing of an intellectual heat expand sleeve from the thermoplastic polymer capable to increase the overall dimensions in cross- section at heating due to intellectual property of the modified polymer - «molecular memory of a form», and having the increased mechanical breaking strength, necessary for application of an intellectual heat expand polymeric sleeve at restoration of the pipelines maintained under pressure.
Polymer can be modified with the help of chemical or radiating method.
The technical result reached at the solution of an objective is increasing the breaking strength of a heat expand sleeve from thermoplastic materials. The multilayered heat expand sleeve solves imperfections mentioned above and consists of at least one polymeric layer and at least one reinforcing layer executed from threads of fiber or a metal wire and materials where each layer are chosen according to the condition of increasing the mechanical stability of the heat expand sleeve and the quantity of layers is chosen depending on application of the heat expand sleeve.
Modified polymer can be used as a material of a polymeric layer.
Polyolefin can be used as a material of a polymeric layer.
Polyethylene can be used as a material of a polymeric layer.
The reinforcing layer can be made of technical threads - lavsan, kapron, aramid.
The reinforcing layer can be made in the form of at least two fibers or the threads bound with formation of extended structure with possibility of axial stretching.
Fibers or threads of a reinforcing layer can be made of a natural material.
Fibers or threads of a reinforcing layer can be made of a synthetic material.
Fibers or threads of a reinforcing layer can be made of polyester or polyamide or a polyolefin.
Fibers or threads of a reinforcing layer can be made of polyethylene terephthalate.
Fibers or threads of a reinforcing layer can be made of aliphatic polyamide.
Fibers or threads of a reinforcing layer can be made of nylon.
Fibers or threads of a reinforcing layer can be made of aromatic polyamide.
Fibers or threads of a reinforcing layer can be made of aramid combination.
Fibers or threads of a reinforcing layer can be made of poli-n-fenilentereftalamid.
Fibers or threads of a reinforcing layer can be made of poliparafenilen-tereftalamid.
The reinforcing layer can be made in the form of a spiral or a braid from a metal wire.
The proposed multilayered intellectual heat expand polymeric sleeve is described by the drawings representing:
Fig.l - the cross-section of the three-layered reinforced intellectual heat expand polymeric sleeve;
Fig.2 - the longitudinal section of the three-layered reinforced intellectual heat expand polymeric sleeve.
The three-layered reinforced intellectual heat expand polymeric sleeve consists of an inside layer 1 made of the modified polymer of a reinforcing layer in the form of a braid of technical threads 2 or a metal wire and an external layer 3 made of modified polymer.
The sleeve can be fabricated by the following way.
Sleeve made of thermoplastic polymer can be extruded by any known design extruder which has a possibility to manufacture multilayered pipe with reinforcing one or several layers, then the subject is being modified by known ways such as radiation exposure, electronic accelerator, chemical modifying. The received modified preform is transform by heating up to a plastic consistence of a polymer material. Then the profile of the pipe is profiled in the axial, radial directions and in cross-section up to 3 times of the initial diameter of the preform by pulling rollers through main calibers. The deformed pipe-sleeve passes through a cooling bath to fix its size, profile and tension which have arisen in a material of polymer and the reinforcing layer after extracting and profiling. After cooling the received multilayered intellectual heat expand sleeve is taken up on the coil of an intake or is cut on measured pieces and is packed.
The deformed multilayered heat expand sleeve made in such a way possesses «effect of shape memory » and at repeated heating to plasticization temperature (80-140 °C) modified polymer gets its initial sizes and shapes. While modifying polymer its physicomechanical characteristics change, so wear resistance raises 15-35 times that allows to apply such sleeves as wearproof coverings in products with especially hard working conditions. One or several reinforcing layers increase mechanical durability of a heat expand sleeve several times depending on an applied material.
For manufacturing of one or several reinforcing layers of a multilayered intellectual heat expand sleeve it is necessary to choose materials so that in aggregate with one or several polymeric layers the multilayered heat expand sleeve could stand environment influence in which it is supposed to be used. So it is necessary that the sleeve could pass through itself the flowing fluid under pressure, without leakages through walls. There is also a need that the sleeve could resist to the axial and radial tension caused by requirements for installation of a multilayered intellectual heat expand sleeve at works on restoration or fettling of the pipeline and at its direct operation in the pipeline. Basic purpose of one or each reinforcing layers is withstand ring tensions which the sleeve is exposed to during transportation of flowing fluids in it. So, any reinforcing layer possessing the necessary degree of flexibility and capable to resist to necessary tension will be applicable.
Example 1. At co-extrusion line for production of composite polymeric multilayered pipes strengthened by winding from a spiral steel wire of pipes of STR series at temperature 140 C° they extrude 3- layered polymeric reinforced sleeve from high-pressure polyethylene of mark 153K. Same time they add 5 % of vinyltrimethoxysilane (simplified formula C2H4Si (OR) 3) initially to granules of polyethylene for further providing of silane updating of polymer. The received sleeve reinforced by a spiral steel wire with external diameter of 40,0 mm and thickness of 3,0 mm is a subject for updating process completion to processing within 5 hours in a water bath with water temperature 95°C. Then chemically modified sleeve is passed through capacity with the glycerin which has been heated up to temperature of 140 °C and by means of the pulling device at speed 1,0M / min and effort of 25 kg/sec stretch the warmed-up sleeve from capacity via calibrating device of smaller diameter in which there is a reduction of sleeve diameter to simultaneous increase in its length, thus the caliber is cooled with turnaround water supply at temperature of 20 °C and has openings on the surface for ensuring vacuum pressing of an external wall of a pipe to an internal wall of caliber. At drawing of the warmed-up sleeve there is its extract before achievement of diameter of D=30 mm and its axial lengthening 1,7 times. Further the received stretched sleeve 1 stretch through a cooling bath with water temperature 20 C. We get heat expand sleeve 1 with external diameter of D=30 mm and thickness of a wall 2,0 mm, thus a sleeve has ability to "remember" the initial sizes when heating to temperature of 170 °C. Thus, the received sleeve when heating to the specified temperature can increase in diameter up to 40 cm decreasing respectively at length 1,7 times.
Example 2. On the 3 -layered co-extrusion line of STR series for production of composite, strengthened by winding from a synthetic thread of pipes at temperature of 145 °C they extrude polymeric reinforced sleeve from high pressure polyethylene of mark 153-10K. The received sleeve with external diameter of 21,0 mm and wall thickness of 3,0 mm subject to gamma irradiation on irradiating installation to the absorbed dose of 10 ± 1 Mrad. Then the modified sleeve pass through capacity with the glycerin heated up to temperature of 145 °C and by means of pulling device at speed 2,0M / min and effort of 10 kg sec stretch the warmed-up sleeve from capacity to caliber in which sleeve reduces its diameter, thus caliber is cooled with turnaround water supply at temperature of 20 °C and has openings on the surface for ensuring vacuum pressing of an external wall of a sleeve to an internal wall of caliber. At drawing of the warmed- up sleeve through caliber there occurs its extract up to diameter of 10,0 mm, thus there is an axial lengthening of tubular preform approximately 2,5 times. At drawing of the warmed-up sleeve through caliber there occurs its deformation thus its external dimensions decrease from value of 10 mm to 7 mm. Further the received sleeve deformed in the axial direction is stretched through a cooling bath with water temperature of 20 °C. As a result we receive a three-layered intellectual heat expand sleeve with external diameter of 7 mm and wall thickness of 1,2 mm at which the top (first) and internal (third) polymeric layers are radiating modified. The inside (second) layer in the form of a braid from synthetic threads is a reinforcing layer. When heating to temperature of 145 °C this sleeve is capable to accept an initial form and the sizes: external diameter of 21 mm, wall thickness of 3,0 mm.
The invention was explained above with reference to concrete option of its implementation. To experts there can be obvious other options of implementation of the invention without changing its essence as it is described in the present description. Respectively it is necessary to consider the description of the invention limited on volume by only a below- mentioned formula of invention.

Claims

A multilayered heat expand sleeve consisting of at least one polymeric layer and at least one reinforcing layer from threads of fiber or a metal wire, and materials of each layer are chosen from the condition of increase in mechanical durability of heat expand sleeve, and the quantity of layers is chosen depending on a problem of application of heat expand sleeve.
Sleeve according to claim 1 wherein the material of a polymeric layer is modified polymer.
A sleeve according to claim 1 wherein the material of a polymeric layer is polyolefin.
A sleeve according to claim 1 wherein the material of a polymeric layer is polyethylene.
A sleeve according to claim 1 wherein the reinforcing layer is made of technical threads - lavsan, kapron, aramids.
Sleeve according to claim 1 wherein the reinforcing layer is made of at least two fibers or the threads bound with the formation of extended structure and the possibility of axial stretching.
A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of a natural material.
A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of a synthetic material.
A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of polyester or polyamide or a polyolefin.
A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of polyethylene terephthalate.
A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of aliphatic polyamide.
A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of nylon.
A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of aromatic polyamide.
A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of aramid connection.
A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of poli-n-fenilentereftalamid. A sleeve according to claim 1 wherein fibers or threads of a reinforcing layer are made of kevlar.
A sleeve according to claim 1 wherein the reinforcing layer is made in the form of a spiral or a braid of a metal wire.
PCT/RU2013/000550 2012-11-01 2013-06-27 The multilayered intellectual heat expand sleeve of thermoplastic polymer WO2014070040A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2012146582 2012-11-01
RU2012146582 2012-11-01

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WO2014070040A1 true WO2014070040A1 (en) 2014-05-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016026192A1 (en) * 2014-08-22 2016-02-25 五行材料科技（江苏）有限公司 Reduced-streatchability multilayer tube and manufacturing method therefor
WO2017092893A1 (en) * 2015-12-03 2017-06-08 Contitech Schlauch Gmbh Transfer hose

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2385228C2 (en) * 2008-02-18 2010-03-27 Дмитрий Вячеславович Алявдин Method to produce thermally expanding hose from thermoplastic polymer (versions)

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2385228C2 (en) * 2008-02-18 2010-03-27 Дмитрий Вячеславович Алявдин Method to produce thermally expanding hose from thermoplastic polymer (versions)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EVANS COLIN W.: "Chemistry", HOSE TECHNOLOGY., vol. 18, 1978, MOSCOW, pages 7 - 8, 18, 23-25, 45, 48 *
FISHER E. G.: "Chemistry", EXTRUSION OF PLASTICS., vol. 144, 1970, MOSCOW, pages 148 - 151, 230-231, 234-235, 239-240 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016026192A1 (en) * 2014-08-22 2016-02-25 五行材料科技（江苏）有限公司 Reduced-streatchability multilayer tube and manufacturing method therefor
WO2017092893A1 (en) * 2015-12-03 2017-06-08 Contitech Schlauch Gmbh Transfer hose

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