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GB1393756A - Tandem rf and die curing in pultrusion - Google Patents

Tandem rf and die curing in pultrusion

Info

Publication number
GB1393756A
GB1393756A GB4383572A GB4383572A GB1393756A GB 1393756 A GB1393756 A GB 1393756A GB 4383572 A GB4383572 A GB 4383572A GB 4383572 A GB4383572 A GB 4383572A GB 1393756 A GB1393756 A GB 1393756A
Authority
GB
United Kingdom
Prior art keywords
die
resin
entry
drawn
moulding
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
GB4383572A
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.)
Beazer East Inc
Original Assignee
Koppers Co Inc
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 Koppers Co Inc filed Critical Koppers Co Inc
Publication of GB1393756A publication Critical patent/GB1393756A/en
Expired legal-status Critical Current

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
    • 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
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B29C70/525—Component parts, details or accessories; Auxiliary operations
    • B29C70/528—Heating or cooling
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/10—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation for articles of indefinite length
    • 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
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/083—Combinations of continuous fibres or fibrous profiled structures oriented in one direction and reinforcements forming a two dimensional structure, e.g. mats
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C2035/0283—Thermal pretreatment of the plastics material
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0861—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using radio frequency
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B29C2035/1616—Cooling using liquids
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C2037/90—Measuring, controlling or regulating
    • 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
    • B29C2791/00—Shaping characteristics in general
    • B29C2791/001—Shaping in several steps
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
    • B29K2105/101—Oriented

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

1393756 Curing resin reinforced mouldings KOPPERS CO Inc 21 Sept 1972 [29 Sept 1971] 43835/72 Heading B5A A glass fibre reinforced thermosetting resin rod, sheet or tube R is formed by drawing through a heated metal die 11 the reinforcements 6 which have been impregnated with the resin during passage through a resin bath 8, and heated prior to entry into the die 11 by passage between a preheater comprising spaced radio frequency electrodes 10, or a microwave oven. The bath 8 is provided with an aperture 9 for removing excess resin, and the die entry is cooled to prevent solidification of further excess resin which is collected at 14 at the entry to the die. The moulding R is drawn by endless belt mechanism 17 delivering to a cut-off mechanism, and cooled in passage through water sprays 16. The die 11 may be heated by electrical elements, or circulating oil, and cooled by circulating water, and may comprise a tube or a split die and may comprise a chromium plated forming surface. The radio or microwave heaters may be controlled in accordance with the temperature of the resin impregnated fibres measured, e.g. by an infra red pyrometer, between the heaters and the entry to the die. The die may also be mounted for displacement in the moulding direction, and against a spring beam 22, Fig. 2, along rods 18 so that an increased traction of the mechanism 17 resulting from too great a hardening of the resin upstream of the die, deflects the beam 22 to sequential actuate microswitches 24, 23, the switch 24 illuminating a signal lamp and the switch 23 cutting the power input to the preheaters. In the Fig. 5 embodiment, (not shown), impregnated fibres for a moulded strip are drawn from the impregnating bath through a spaced rod pair, and through a further spaced rod pair guide downstream of the radio frequency or microwave heater, a pair of fibrous mats for opposed surfaces of the moulding being drawn through impregnation baths and into the die also downstream of the radio frequency or microwave heater. The resin comprises polyester of ortho-phthalic or iso-phthalic nature, fire retardant resin based on tetrachlorophthalic anhydride, and resin based on ethylene, propylpropylene, dipropylene, and neopentyl glycol. The reinforcement comprises rovings, mats, or woven glass fabrics and, where the moulding includes fibres pre-bonded in a required spatial relationship, these are drawn into the die downstream of the preheaters, as in the Fig. 5 embodiment, to avoid softening of the binding agent thereby.
GB4383572A 1971-09-29 1972-09-21 Tandem rf and die curing in pultrusion Expired GB1393756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18471071A 1971-09-29 1971-09-29

Publications (1)

Publication Number Publication Date
GB1393756A true GB1393756A (en) 1975-05-14

Family

ID=22678028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4383572A Expired GB1393756A (en) 1971-09-29 1972-09-21 Tandem rf and die curing in pultrusion

Country Status (12)

Country Link
JP (1) JPS4856760A (en)
AU (1) AU459714B2 (en)
BE (1) BE789505A (en)
CH (1) CH542040A (en)
DE (1) DE2243087A1 (en)
ES (2) ES407087A1 (en)
FR (1) FR2154677B1 (en)
GB (1) GB1393756A (en)
IT (1) IT970800B (en)
LU (1) LU66193A1 (en)
NL (1) NL7211646A (en)
ZA (1) ZA725426B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2407759C1 (en) * 2009-05-12 2010-12-27 Общество С Ограниченной Ответственностью "Бийский Завод Стеклопластиков" Method for continuous production of rods from composite material
CN107839259A (en) * 2017-10-25 2018-03-27 山东大学 A kind of microwave heating fiber pultrusion production system and production method
WO2018094521A1 (en) * 2016-11-23 2018-05-31 Pultrall Inc. Method and system for producing a reinforcing bar, and resulting reinforcing bar
WO2019224512A1 (en) * 2018-05-23 2019-11-28 Pomeroy Jason Paul Magnetic glass fibre component
CN115503265A (en) * 2022-08-05 2022-12-23 江苏亨睿航空工业有限公司 A kind of composite material microwave enhanced pultrusion equipment and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59133017A (en) * 1983-01-20 1984-07-31 Kyushu Sekisui Kogyo Kk Method of continuously drawing and forming coated frp bar
CN112847906B (en) * 2021-01-25 2023-03-14 宜宾天亿新材料科技有限公司 Multi-section type pipe heating device used before preparation of PVC-O pipe fitting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL141120B (en) * 1967-06-23 1974-02-15 Glastrusions METHOD AND DEVICE FOR THE CONTINUOUS FORMING OF A FIBER-REINFORCED ARTIFICIAL RESIN.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2407759C1 (en) * 2009-05-12 2010-12-27 Общество С Ограниченной Ответственностью "Бийский Завод Стеклопластиков" Method for continuous production of rods from composite material
WO2018094521A1 (en) * 2016-11-23 2018-05-31 Pultrall Inc. Method and system for producing a reinforcing bar, and resulting reinforcing bar
EP3544796A4 (en) * 2016-11-23 2020-07-22 Pultrall Inc. METHOD AND SYSTEM FOR PRODUCING A REINFORCING STAFF AND REINFORCING STAFF THEREFORE
US11613086B2 (en) 2016-11-23 2023-03-28 Pultrall Inc. Method and system for producing a reinforcing bar, and resulting reinforcing bar
US12011888B2 (en) * 2016-11-23 2024-06-18 Pultrall Inc. Method and system for producing a reinforcing bar, and resulting reinforcing bar
CN107839259A (en) * 2017-10-25 2018-03-27 山东大学 A kind of microwave heating fiber pultrusion production system and production method
WO2019224512A1 (en) * 2018-05-23 2019-11-28 Pomeroy Jason Paul Magnetic glass fibre component
CN115503265A (en) * 2022-08-05 2022-12-23 江苏亨睿航空工业有限公司 A kind of composite material microwave enhanced pultrusion equipment and method

Also Published As

Publication number Publication date
ES411179A1 (en) 1975-12-01
DE2243087A1 (en) 1973-04-05
ZA725426B (en) 1973-04-25
FR2154677B1 (en) 1976-03-12
NL7211646A (en) 1973-04-02
ES407087A1 (en) 1975-11-01
CH542040A (en) 1973-09-30
AU459714B2 (en) 1975-04-10
JPS4856760A (en) 1973-08-09
AU4629372A (en) 1974-03-21
BE789505A (en) 1973-01-15
FR2154677A1 (en) 1973-05-11
IT970800B (en) 1974-04-20
LU66193A1 (en) 1973-01-17

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Legal Events

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