GB1514369A - Foam tubes - Google Patents

Foam tubes

Info

Publication number
GB1514369A
GB1514369A GB2992676A GB2992676A GB1514369A GB 1514369 A GB1514369 A GB 1514369A GB 2992676 A GB2992676 A GB 2992676A GB 2992676 A GB2992676 A GB 2992676A GB 1514369 A GB1514369 A GB 1514369A
Authority
GB
United Kingdom
Prior art keywords
forming
strip
tubes
welding
heating device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2992676A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB1514369A publication Critical patent/GB1514369A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/56—After-treatment of articles, e.g. for altering the shape
    • B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
    • B29C44/5636—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching with the addition of heat
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • 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
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B29L2023/225—Insulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

In the process a strip (2) of a thermoplastic foam is, before forming, heated on its subsequent tube inside and, after forming and welding of the abutting seam, heated briefly on the outside to the thermoelastic or thermoplastic state and subsequently cooled. As a result, the tubes are dimensionally stable and stress-free. The continuously fed strip (2) is conveyed by means of an endless circulating belt (8) which has a rough surface and conveys the strip (2) through a first heating device (7), a forming funnel (10), a cooled forming tube (14), a welding device (19), a pressing device (20), a second heating device (24) and a cooling device (27). The tubes are suitable in particular for insulation purposes in sanitary installations. <IMAGE>
GB2992676A 1975-07-19 1976-07-19 Foam tubes Expired GB1514369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2532406A DE2532406C3 (en) 1975-07-19 1975-07-19 Method and apparatus for the continuous production of a pipe from a web of a thermoplastic foam

Publications (1)

Publication Number Publication Date
GB1514369A true GB1514369A (en) 1978-06-14

Family

ID=5951965

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2992676A Expired GB1514369A (en) 1975-07-19 1976-07-19 Foam tubes

Country Status (11)

Country Link
AT (1) AT363252B (en)
BE (1) BE844152A (en)
CH (1) CH612619A5 (en)
DE (1) DE2532406C3 (en)
DK (1) DK151372C (en)
FR (1) FR2318724A1 (en)
GB (1) GB1514369A (en)
IE (1) IE43495B1 (en)
IT (1) IT1066531B (en)
NL (1) NL179885C (en)
SE (1) SE7608205L (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605593A (en) * 1993-04-19 1997-02-25 Nmc Of North America Multi-layered bonded closure system for foam tubes or profiles
WO2001089805A1 (en) * 2000-05-23 2001-11-29 S.S.H. Medical Limited Manufacture of dome-shaped articles from thermoplastic foam sheet material
AU773880B2 (en) * 2000-05-23 2004-06-10 Ssh Medical Limited Manufacture of dome-shaped articles from thermoplastic foam sheet material technical field
CN102886896A (en) * 2012-10-23 2013-01-23 中山市新宏业自动化工业有限公司 Full-plastic composite sheet welding device
US8658264B2 (en) 2009-06-25 2014-02-25 Nomaco Inc. Self-adjusting insulation, including insulation particularly suited for pipe or duct
US9157566B2 (en) 2012-05-11 2015-10-13 Nomaco Inc. Insulation systems employing expansion features to insulate elongated containers subject to extreme temperature fluctuations, and related components and methods

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140388C2 (en) * 1981-10-10 1984-08-09 Dynamit Nobel Ag, 5210 Troisdorf Method and device for the continuous production of a longitudinally slotted tube from a web of a thermoplastic foam
DE3363459D1 (en) * 1982-02-26 1986-06-19 Dynamit Nobel Ag Method and device for the production of multi-layer insulating tubes of foamed plastic strips
DE3318082A1 (en) * 1983-05-18 1984-11-22 Dynamit Nobel Ag, 5210 Troisdorf METHOD AND DEVICE FOR PRODUCING A TUBE PROVIDED WITH AN INSULATING COVER FROM FOAM
DE3338071A1 (en) * 1983-10-20 1985-05-09 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Process for the continuous production of flexible, thermally insulated pipelines
DE3429018C1 (en) * 1984-08-07 1985-08-14 Fa. Carl Freudenberg, 6940 Weinheim Process for the continuous production of a cylindrical hollow body made of foam
BE1016954A3 (en) * 2006-02-08 2007-10-02 Imhold Nv Foam leaf production machine for e.g. mattress filling material, comprises endless belt for transporting foam strip and means for bending belt edges together

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279503A (en) * 1963-08-19 1966-10-18 Dow Chemical Co Snap-on foamed resin insulation
DE1915768C3 (en) * 1968-03-27 1974-02-07 The Furukawa Electric Co., Ltd., Tokio A method and apparatus for continuously manufacturing a tubular article from a sheet of foamed thermoplastic resin
GB1277038A (en) * 1969-07-09 1972-06-07 Vladimirsky Nii Sint Smol A method of manufacturing shaped articles from elastic porous materials
GB1488934A (en) * 1974-01-28 1977-10-19 Sekisui Chemical Co Ltd Method and apparatus for producing synthetic resin tube

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5605593A (en) * 1993-04-19 1997-02-25 Nmc Of North America Multi-layered bonded closure system for foam tubes or profiles
WO2001089805A1 (en) * 2000-05-23 2001-11-29 S.S.H. Medical Limited Manufacture of dome-shaped articles from thermoplastic foam sheet material
AU773880B2 (en) * 2000-05-23 2004-06-10 Ssh Medical Limited Manufacture of dome-shaped articles from thermoplastic foam sheet material technical field
US7041248B2 (en) 2000-05-23 2006-05-09 Biolayer Corporation Limited Manufacture of dome-shaped articles from thermoplastic foam sheet material technical field
US8658264B2 (en) 2009-06-25 2014-02-25 Nomaco Inc. Self-adjusting insulation, including insulation particularly suited for pipe or duct
US9157566B2 (en) 2012-05-11 2015-10-13 Nomaco Inc. Insulation systems employing expansion features to insulate elongated containers subject to extreme temperature fluctuations, and related components and methods
CN102886896A (en) * 2012-10-23 2013-01-23 中山市新宏业自动化工业有限公司 Full-plastic composite sheet welding device
CN102886896B (en) * 2012-10-23 2015-03-04 中山市新宏业自动化工业有限公司 Full-plastic composite sheet welding device

Also Published As

Publication number Publication date
DE2532406A1 (en) 1977-01-20
SE7608205L (en) 1977-01-10
AT363252B (en) 1981-07-27
DE2532406C3 (en) 1980-04-10
NL179885C (en) 1986-12-01
FR2318724A1 (en) 1977-02-18
FR2318724B1 (en) 1981-04-30
CH612619A5 (en) 1979-08-15
DK151372C (en) 1988-05-16
IE43495B1 (en) 1981-03-11
BE844152A (en) 1976-11-03
DK322576A (en) 1977-01-20
DK151372B (en) 1987-11-30
ATA525576A (en) 1980-12-15
IE43495L (en) 1977-01-19
DE2532406B2 (en) 1978-04-13
IT1066531B (en) 1985-03-12
NL7607916A (en) 1977-01-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee