SE513772C2 - Device for facilitating the extraction of supply cables for thermosetting plastic from mold spaces - Google Patents

Device for facilitating the extraction of supply cables for thermosetting plastic from mold spaces

Info

Publication number
SE513772C2
SE513772C2 SE9901004A SE9901004A SE513772C2 SE 513772 C2 SE513772 C2 SE 513772C2 SE 9901004 A SE9901004 A SE 9901004A SE 9901004 A SE9901004 A SE 9901004A SE 513772 C2 SE513772 C2 SE 513772C2
Authority
SE
Sweden
Prior art keywords
facilitating
extraction
friction
supply
reducing member
Prior art date
Application number
SE9901004A
Other languages
Swedish (sv)
Other versions
SE9901004D0 (en
SE9901004L (en
Inventor
Dag Thulin
Original Assignee
Dag Thulin
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 Dag Thulin filed Critical Dag Thulin
Priority to SE9901004A priority Critical patent/SE513772C2/en
Publication of SE9901004D0 publication Critical patent/SE9901004D0/en
Priority to BRPI0009155-3A priority patent/BR0009155B1/en
Priority to AU44420/00A priority patent/AU4442000A/en
Priority to PCT/SE2000/000532 priority patent/WO2000056515A1/en
Publication of SE9901004L publication Critical patent/SE9901004L/en
Publication of SE513772C2 publication Critical patent/SE513772C2/en

Links

Classifications

    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/24—Feeding the material into the mould
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/0061—Moulds or cores; Details thereof or accessories therefor characterised by the configuration of the material feeding channel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/546—Measures for feeding or distributing the matrix material in the reinforcing structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The invention relates to an apparatus for facilitating extraction of supply conduits (4) for thermosetting resin from a mould cavity being under vacuum and partly filled with reinforcing material for producing composite pipes, the mouths of said supply conduits are placed initially at the lowest part of said mould cavity and is then progressively moved upwards in a position just below the surface of the introduced resin. To be able to extract the supply conduits from the mould cavity it is suggested according to the invention that a friction reduction means (1) is placed around each supply conduit (4).

Description

5132772 ut ur formen med en sådan hastighet att tillförselledningarnas ändöppningar är placerade strax under ytan för den stigande plasten. 5132772 out of the mold at such a speed that the end openings of the supply lines are located just below the surface of the rising plastic.

Det har nu uppstått ett behov av att tillverka dylika rör med en längd av upp till ca 40 meter. Vid tillverkning av så- dana lánga rör medelst de ovan beskrivna tillförselledningarna blir emellertid friktionen mellan desamma och armeringen allt- för stor. Det går helt enkelt icke att dra ut tillförselled- ningarna utan att de går av. De utnyttjade tillförselledning- arna har en ytterdiameter av 1-3 mm och en väggtjocklek av 0,2-0,5 mm samt en draghållfasthet av 900 kN.There is now a need to manufacture such pipes with a length of up to about 40 meters. In the manufacture of such long pipes by means of the supply lines described above, however, the friction between them and the reinforcement becomes too great. It is simply not possible to unplug the supply lines without disconnecting them. The used supply lines have an outer diameter of 1-3 mm and a wall thickness of 0.2-0.5 mm and a tensile strength of 900 kN.

Att öka väggtjockleken hos tillförselledningarna under bibehållande av samma innerdiameter leder till att ytterdiame- tern ökar. Detta är ej en acceptabel lösning eftersom det då uppstår ”ryggar” och hålrum i armeringen efter tillförselled- ningarna som hos det färdiga sammansatta röret kommer att vara fyllda med hårdplast.Increasing the wall thickness of the supply lines while maintaining the same inner diameter leads to an increase in the outer diameter. This is not an acceptable solution as there will then be “backs” and cavities in the reinforcement after the supply lines, which in the finished composite pipe will be filled with hard plastic.

Syftet med uppfinningen är att eliminera ovannämnda nack- delar.The object of the invention is to eliminate the above-mentioned disadvantages.

Detta uppnås enligt uppfinningen genom att ett friktions- minskande organ är anordnat runt varje tillförselledning.This is achieved according to the invention in that a friction-reducing member is arranged around each supply line.

Uppfinningen beskrivs närmare nedan under hänvisning till bifogade ritning som är en bruten perspektivvy av det frik- tionsminskande organet enligt uppfinningen tillsammans med en tillförselledning.The invention is described in more detail below with reference to the accompanying drawing which is a broken perspective view of the friction reducing member according to the invention together with a supply line.

Ett friktionsminskande organ 1 är företrädesvis utformat av ett tunt, långsmalt band eller folie som viks på mitten i bandets làngdriktning till bildande av två bandhalvor 2, 3 i form av ett V, mellan vilka en tillförselledning 4 är place- rad. Bandhalvorna 2, 13 har sådan bredd att de fullständigt täcker tillförselledningen 4 då de är vikta mot varandra.A friction reducing member 1 is preferably formed of a thin, elongate strip or foil which is folded in the middle in the longitudinal direction of the strip to form two strip halves 2, 3 in the form of a V, between which a supply line 4 is placed. The belt halves 2, 13 have such a width that they completely cover the supply line 4 when they are folded against each other.

Det friktionsminskande organet 1 skall vara tillverkat av ett ämne som är lösligt i den utnyttjade hårdplast, som till- föres medelst tillförselledningarna, så att inga främmande äm- 5153772 nen uppträder i det färdiga laminatet av de sammansatta rören.The friction reducing member 1 shall be made of a substance which is soluble in the utilized hard plastic, which is supplied by means of the supply lines, so that no foreign substances appear in the finished laminate of the composite pipes.

De mot tillförselledningen vända sidorna av bandhalvorna 2, 3 kan vara försedda med ett smörjmedel i form av t ex vax för att ytterligare minska friktionen mellan tillförselledningen 4 och bandet 1.The sides of the belt halves 2, 3 facing the supply line can be provided with a lubricant in the form of, for example, wax to further reduce the friction between the supply line 4 and the belt 1.

Genom att anordna dylika friktionsminskande organ 1 runt varje tillförselledning 4 inuti formen âr det nu möjligt att tillverka sammansatta rör med en längd av upp till 40 m me- delst tunna, làngsmala tillförselledningar och 'utan att det uppstår ryggar eller hàlrum i armeringen till det färdiga sam- mansatta röret.By arranging such friction reducing means 1 around each supply line 4 inside the mold, it is now possible to manufacture composite pipes with a length of up to 40 m by means of thin, long narrow supply lines and without backs or cavities in the reinforcement to the finished product. composite pipe.

Claims (3)

5134 772 P a t e n t k r a v5134 772 P a t e n t k r a v 1. Anordning för att underlätta utdragningen av tillförsel- ledningar (4) för hârdplast ur ett med armering delvis fyllt och under vakuum stående formrum för framställning av samman- satta rör, vilka tillförselledningars ändöppningar inlednings- vis är placerade vid formrummets lägsta del för att sedan suc- cessivt förflyttas uppåt i takt med den stigande ytan hos den införda närdplasten, k ä n n e t e c k n a d a v att ett friktionsminskande organ (1) âr anordnat runt varje tillför- selledning (4)Device for facilitating the extraction of supply lines (4) for hard plastic from a mold space partially filled with reinforcement and under vacuum for the production of composite pipes, which end openings of supply lines are initially located at the lowest part of the mold space and then successively moved upwards in step with the rising surface of the inserted plastic, characterized in that a friction-reducing member (1) is arranged around each supply line (4). 2. Anordning enligt patentkrav 1, k å n n e t e c k n a d a v' att det friktionsminskande organet (1) är tillverkat av ett material som är lösligt i den utnyttjade härdplasten.Device according to claim 1, characterized in that the friction reducing member (1) is made of a material which is soluble in the thermoset used. 3. Anordning enligt patentkrav 1 eller 2, k ä n n e t e c k- n a d a v att den mot tillförselledningen (4) vända ytan av det friktionsminskande organet (1) är försedd med ett smörjme- del.Device according to claim 1 or 2, characterized in that the surface of the friction-reducing member (1) facing the supply line (4) is provided with a lubricant.
SE9901004A 1999-03-19 1999-03-19 Device for facilitating the extraction of supply cables for thermosetting plastic from mold spaces SE513772C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9901004A SE513772C2 (en) 1999-03-19 1999-03-19 Device for facilitating the extraction of supply cables for thermosetting plastic from mold spaces
BRPI0009155-3A BR0009155B1 (en) 1999-03-19 2000-03-17 device for facilitating the extraction of thermosetting resin supply ducts from a molded cavity.
AU44420/00A AU4442000A (en) 1999-03-19 2000-03-17 Apparatus for facilitating extraction of supply conduits for thermosetting resinfrom a mould cavity
PCT/SE2000/000532 WO2000056515A1 (en) 1999-03-19 2000-03-17 Apparatus for facilitating extraction of supply conduits for thermosetting resin from a mould cavity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9901004A SE513772C2 (en) 1999-03-19 1999-03-19 Device for facilitating the extraction of supply cables for thermosetting plastic from mold spaces

Publications (3)

Publication Number Publication Date
SE9901004D0 SE9901004D0 (en) 1999-03-19
SE9901004L SE9901004L (en) 2000-09-20
SE513772C2 true SE513772C2 (en) 2000-11-06

Family

ID=20414920

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9901004A SE513772C2 (en) 1999-03-19 1999-03-19 Device for facilitating the extraction of supply cables for thermosetting plastic from mold spaces

Country Status (4)

Country Link
AU (1) AU4442000A (en)
BR (1) BR0009155B1 (en)
SE (1) SE513772C2 (en)
WO (1) WO2000056515A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE347901B (en) * 1970-08-31 1972-08-21 Control Building Syst Inc
GB9111817D0 (en) * 1991-06-01 1991-07-24 British Aerospace Composite resin flow
JPH06155491A (en) * 1992-11-25 1994-06-03 Mitsubishi Electric Corp Casting mold
SE501085C2 (en) * 1993-02-25 1994-11-07 Swedish Inst Of Composites Sic Method for manufacturing bodies of fiber composites
NO302608B1 (en) * 1995-08-31 1998-03-30 Dag Thulin Method for feeding matrix via supply lines to a vacuum chamber

Also Published As

Publication number Publication date
SE9901004D0 (en) 1999-03-19
WO2000056515A1 (en) 2000-09-28
AU4442000A (en) 2000-10-09
SE9901004L (en) 2000-09-20
BR0009155A (en) 2001-12-26
BR0009155B1 (en) 2013-05-07

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