DK2678263T3 - Fremgangsmåde til fremstilling af arme i et kompositmateriale til fordeling af beton og således opnået arm - Google Patents

Fremgangsmåde til fremstilling af arme i et kompositmateriale til fordeling af beton og således opnået arm Download PDF

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Publication number
DK2678263T3
DK2678263T3 DK12713284.3T DK12713284T DK2678263T3 DK 2678263 T3 DK2678263 T3 DK 2678263T3 DK 12713284 T DK12713284 T DK 12713284T DK 2678263 T3 DK2678263 T3 DK 2678263T3
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Prior art keywords
section
arm
fibers
male mold
composite material
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DK12713284.3T
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English (en)
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DK2678263T4 (da
Inventor
Nicola Pirri
Paolo Dario Maini
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Cifa Spa
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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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • 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
    • B29C53/56—Winding and joining, e.g. winding spirally
    • 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
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
    • B29C53/584—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features having a non-circular cross-section
    • 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
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
    • B29C53/587—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features having a non-uniform wall-structure, e.g. with inserts, perforations, locally concentrated reinforcements
    • 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
    • B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
    • B29C70/021—Combinations of fibrous reinforcement and non-fibrous material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (14)

1. Fremgangsmåde til fremstilling af en arm i et kompositmateriale til leddelte eller teleskopiske modulære konstruktioner til fordeling af beton, beregnet til at forberede en form (11) af hantypen med et tværsnit forsynet med mindst en i det væsentlige flad væg, der reduceres i mindst en af dens dimensioner og for mindst et langsgående afsnit, der forløber fra en af dens ender til den anden og omfatter et første aflejringstrin, hvor et eller flere lag af fibre (16, 25) fordeles på den ydre overflade (17) af formen (11) af hantypen, hvor fibrene (16, 25) kan eller ikke kan være præimprægneret med en harpiksmatrix, og et andet ekstraktionstrin, hvor hanformen (11) udstødes fra det således opnåede produkt, idet der er tilvejebragt en mulig varmebehandling, for eksempel i en autoklave, inden ekstraktion af produktet, kendetegnet ved, at der under det første aflejringstrin tilvejebringes en fordeling af fibrene (16, 25) med en variabel koncentration langs hanformens (11) længdeudstrækning
2. Fremgangsmåde ifølge krav 1, kendetegnet ved, at fibrene (16, 25) under det første trin aflejres på et første afsnit (52) af hanformen (11) for at definere mindst et første segment (50) af armen (10), der har et konisk forløb med en konusvinkel (β) større end 5°, fortrinsvis mellem 5° og 20°, endnu mere foretrukket mellem 10s og 15s.
3. Fremgangsmåde ifølge krav 1 eller 2, kendetegnet ved, at fibrene (16, 25) under det første trin fordeles på et andet afsnit (53) af hanformen (11) for at definere mindst et andet segment (51) af armen (10), hvor mindst en af tværsnittets vægge (32) har en profil med et parabolsk forløb.
4. Fremgangsmåde ifølge krav 2 og 3, kendetegnet ved, at det første segment (50) strækker sig over cirka 20% af armens (10) samlede længde, og det andet segment (51) strækker sig over den resterende del.
5. Fremgangsmåde ifølge krav 4, kendetegnet ved, at aflejringen af en mindre koncentration af fibre (16, 25) tilvejebringes under det første aflejringstrin svarende til det afsnit af hanformen (11), som har en større dimension, med henblik på gradvist at blive øget i en længderetning mod afsnittet med mindre dimensioner.
6. Fremgangsmåde ifølge krav 5, kendetegnet ved, at et lag af fibre (16, 25) svarende til afsnittet af hanformen (11) med mindre dimensioner aflejres med en tykkelse, der er i det væsentlige den dobbelte af tykkelsen, der er aflejret svarende til afsnittet af hanformen (11) med mindre dimensioner.
7. Fremgangsmåde ifølge et hvilket som helst foregående krav, kendetegnet ved, at adskillige overlappende lag af fibrene (16, 25) aflejres under det første aflejringstrin, idet hvert af lagene får fibrene aflejret ifølge forskellige orienteringer.
8. Fremgangsmåde ifølge et hvilket som helst foregående krav, kendetegnet ved, at afsnittet af hanformen (11) er polygonalt, rektangulært eller firkantet, hvor alle sider, hvoraf det består, er i det væsentlige flade.
9. Fremgangsmåde ifølge et hvilket som helst foregående krav, kendetegnet ved, at det polygonale afsnit har to på hinanden følgende sider af afsnittet, der er afrundet i forhold til hinanden.
10. Fremgangsmåde ifølge et hvilket som helst foregående krav, kendetegnet ved, at teknikken til aflejring af fibrene er valgt blandt den ene eller en anden af harpiksoverføringsstøbning (RTM Resin Transfer Molding), infusionsteknik, pultrusionsteknik, filamentviklingsteknik etc.
11. Fremgangsmåde ifølge et hvilket som helst foregående krav, kendetegnet ved, at der efter ekstraktion af hanformen (11) fra produktet er tilvejebragt me- kaniske bearbejdninger for at fjerne overskydende materiale og at fremstille forbindelsessæderne for armens hjælpekomponenter, såsom bøsninger, øjer og forstærknings- eller forbindelsesplader til andre arme.
12. Fremgangsmåde ifølge et hvilket som helst foregående krav, kendetegnet ved, at der er tilvejebragt et mellemliggende trin mellem det første og det andet trin, hvor hanformen (11), hvorpå fibrene (16, 25) er opviklet, indsættes i en indkapsling (26), og en harpiksmatrix indføres under anvendelse af kanaler (27) fremstillet i indkapslingen (26) for at imprægnere fibrene (16, 25).
13. Arm fremstillet af kompositmateriale til leddelte eller teleskopiske modulære konstruktioner til fordeling af beton, som er opnået med en fremgangsmåde ifølge et hvilket som helst af de foregående krav, og som har et firkantet eller generelt polygonalt afsnit med mindst en flad side (31,32, 33), med fordel to, til fastgørelse af bevægelses- eller forstærkningsudstyr eller tilbehørsdele, med en udstrækning i længde, der er langt større end de karakteristiske dimensioner af afsnittet, hvilket afsnit ifølge mindst en af dets dimensioner reduceres progressivt på en kontinuerlig måde eller kontinuerligt i segmenter fra en ende til den anden ende af armen.
14. Arm ifølge krav 13, kendetegnet ved, at reduktionen i afsnittet langs længdeudstrækningen er således, at forholdet mellem dens afsluttende afsnit og dens indledende afsnit, hvor S er det indledende afsnit og s er det afsluttende afsnit, er defineret af formlen s = 0,4-0,6 S.
DK12713284.3T 2011-02-23 2012-02-22 Fremgangsmåde til fremstilling af arme i et kompositmateriale til fordeling af beton og således opnået arm DK2678263T4 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2011A000273A IT1404177B1 (it) 2011-02-23 2011-02-23 Procedimento per la realizzazione di bracci in materiale composito per la distribuzione di calcestruzzo e braccio cosi' ottenuto.
PCT/IB2012/000313 WO2012114190A1 (en) 2011-02-23 2012-02-22 Method to make arms in a composite material for the distribution of concrete and arm thus obtained

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Publication Number Publication Date
DK2678263T3 true DK2678263T3 (da) 2015-07-13
DK2678263T4 DK2678263T4 (da) 2020-03-30

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DK12713284.3T DK2678263T4 (da) 2011-02-23 2012-02-22 Fremgangsmåde til fremstilling af arme i et kompositmateriale til fordeling af beton og således opnået arm

Country Status (8)

Country Link
US (2) US9352515B2 (da)
EP (1) EP2678263B2 (da)
CN (1) CN103476698B (da)
DK (1) DK2678263T4 (da)
ES (1) ES2541757T5 (da)
IT (1) IT1404177B1 (da)
PL (1) PL2678263T5 (da)
WO (1) WO2012114190A1 (da)

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ITMI20110856A1 (it) 2011-05-17 2012-11-18 Cifa Spa Braccio telescopico per gru e gru comprendente tale braccio
ITMI20120206A1 (it) * 2012-02-14 2013-08-15 Cifa Spa Segmento di un braccio articolato e braccio articolato comprendente detto segmento
CN104631828B (zh) * 2014-12-30 2017-07-07 中联重科股份有限公司 工程机械驾驶室主体骨架及制造方法、驾驶室及工程机械
DE202017104032U1 (de) * 2017-05-31 2018-09-18 Liebherr-Werk Biberach Gmbh Tragwerk für einen Kran und ähnliche Arbeitsmaschinen, sowie Kran mit einem solchen Tragwerk
NO20171964A1 (en) * 2017-12-08 2019-06-10 Comrod As Energy transportation mast with different conicities.
CN111173287B (zh) * 2020-03-10 2024-05-28 三一汽车制造有限公司 臂架和作业设备
CN115387613B (zh) * 2021-05-24 2024-09-20 中联重科股份有限公司 纤维复材梁结构及其制备方法、臂节、臂架和机械设备
CN118046601B (zh) * 2024-03-12 2026-03-24 南京航空航天大学 一种适用于多尺寸轴向编织的rtm模具

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Publication number Publication date
WO2012114190A1 (en) 2012-08-30
EP2678263B2 (en) 2020-01-01
IT1404177B1 (it) 2013-11-15
DK2678263T4 (da) 2020-03-30
US9352515B2 (en) 2016-05-31
US20160271889A1 (en) 2016-09-22
ES2541757T5 (es) 2020-07-17
ITMI20110273A1 (it) 2012-08-24
US10399282B2 (en) 2019-09-03
CN103476698B (zh) 2016-04-20
PL2678263T5 (pl) 2020-07-13
ES2541757T3 (es) 2015-07-24
EP2678263B1 (en) 2015-04-08
US20130333829A1 (en) 2013-12-19
PL2678263T3 (pl) 2015-10-30
EP2678263A1 (en) 2014-01-01
CN103476698A (zh) 2013-12-25

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