CA2593163A1 - System for resin curing - Google Patents

System for resin curing Download PDF

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Publication number
CA2593163A1
CA2593163A1 CA 2593163 CA2593163A CA2593163A1 CA 2593163 A1 CA2593163 A1 CA 2593163A1 CA 2593163 CA2593163 CA 2593163 CA 2593163 A CA2593163 A CA 2593163A CA 2593163 A1 CA2593163 A1 CA 2593163A1
Authority
CA
Canada
Prior art keywords
mould
cure
heating units
control means
programmable control
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.)
Granted
Application number
CA 2593163
Other languages
French (fr)
Other versions
CA2593163C (en
Inventor
Alistair Davie
Joseph Pelleja
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.)
Comtek Advanced Structures Ltd
Original Assignee
Comtek Advanced Structures Ltd
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
Priority claimed from CA002551728A external-priority patent/CA2551728A1/en
Application filed by Comtek Advanced Structures Ltd filed Critical Comtek Advanced Structures Ltd
Priority to CA2593163A priority Critical patent/CA2593163C/en
Publication of CA2593163A1 publication Critical patent/CA2593163A1/en
Application granted granted Critical
Publication of CA2593163C publication Critical patent/CA2593163C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B29C35/0288—Controlling heating or curing of polymers during moulding, e.g. by measuring temperatures or properties of the polymer and regulating the process
    • 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
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/06—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using radiation, e.g. electro-magnetic waves, induction heating
    • 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
    • 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
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • 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
    • B29C35/0266—Local curing

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

Among other things, there is disclosed a system for curing a resin in a composite structure having one or more interconnected cure volumes, the cure volumes having one or more heatable surface zones. The system comprises a mould comprising a mould base portion adapted to support the composite structure and a mould closure portion adapted to overlie the mould base portion in sealable relation to define a mould chamber containing the composite structure within. The system further comprises a plurality of heating units each selectively positionable about the mould. The heating units transmit heat to the mould by radiation, and the mould heats the one or more surface zones of the cure volumes.

Claims (27)

1. A system for curing a resin in a composite structure having one or more interconnected cure volumes, said cure volumes having one or more heatable surface zones, said system comprising:
(a) a mould having:

(i) a mould base portion adapted to support said composite structure; and (ii) a mould closure portion adapted to overlie said mould base portion in sealable relation to define a mould chamber containing said composite structure within; and (b) a plurality of heating units each selectively positionable about said mould;

wherein said heating units transmit heat to said mould by radiation; and wherein said mould heats one or more of said surface zones.
2. A system according to claim 1, wherein said heating units are adapted to emit said heat to said mould at one or more respective variable heating unit levels.
3. A system according to claim 2, wherein said plurality of heating units comprises one or more arrays of said heating units, wherein each of said arrays comprises one or more of said heating units, and wherein each of said arrays is positionable in operative heating relation to a corresponding one of said heatable surface zones, with said mould interposed therebetween.
4. A system according to claim 3, further comprising a housing shaped, configured and otherwise adapted to selectively enclose said mould, wherein said heating units are mounted on said housing.
5. A system according to claim 4, wherein said heating units are movably mounted on said housing.
6. A system according to claim 5, further comprising means for adjusting the distance between each of said heating units and said mould.
7. A system according to claim 6, wherein said housing comprises two or more matable housing portions; wherein one or more of said matable housing portions are movable so as to be adapted to form an open configuration of said housing and a closed configuration of said housing; wherein in said closed configuration said housing portions are mated in close fitting relation about said mould, and wherein in said open configuration said housing portions are unmated and positioned sufficiently remotely from one another to allow for removal of said mould from therebetween.
8. A system according to claim 7, wherein said housing portions comprise an upper housing portion and a lower housing portion.
9. A system according to claim 8, further comprising one or more temperature sensing means mounted adjacent said mould for monitoring one or more temperatures within said one or more cure volumes.
10. A system according to claim 9, further comprising a programmable control means responsive to one or more of said temperature sensing means, wherein said programmable control means is operatively connected to said heating units and is adapted to vary a rate of curing of said resin within at least one of said one or more cure volumes by varying one or more of said variable heating unit levels.
11. A system according to claim 10, wherein said one or more temperature sensing means are operatively connected to said programmable control means for conveying one or more signals indicative of said temperatures within said one or more cure volumes from said temperature sensing means to said programmable control means.
12. A system according to claim 11, wherein said programmable control means is adapted to compare said signals indicative of said temperatures within respective ones of said one or more cure volumes with respective ones of one or more reference signals representing respective target ranges of said temperatures within each of said one or more cure volumes and to analyse the results of said comparison, so as to generate a first set of delta signals for respective sending by said programmable control means to said heating units to thereby proportionally vary the respective variable heating unit levels of one or more of the heating units in one or more of said arrays of said heating units in a manner conducive to producing values of the temperatures at a subsequent time that are closer to a target value thereof for said respective cure volumes at said subsequent time;

wherein said heating units are responsive to said programmable control means and adapted to vary said variable heating unit levels in accordance with said first set of delta signals.
13. A system according to claim 12, wherein said programmable control means varies said variable heating unit levels by varying one or more of:

(i) the number of energized heating units in one or more of said arrays;

(ii) the proximity of one or more of the heating units in one or more of said arrays to said mould; and (iii)the intensity of the radiation transmitted by one or more of said heating units in one or more of said arrays.
14. A system according to claim 13, further comprising one or more cure sensing means mounted about said mould for monitoring one or more cure parameters within said one or more cure volumes.
15. A system according to claim 14, wherein said cure parameters include one or more of:

(i) degree of cure of the resin; and (ii) viscosity of the resin;

within said one or more cure volumes.
16. A system according to claim 15, wherein said programmable control means is responsive to one or more of said cure sensing means.
17. A system according to claim 16, wherein said one or more cure sensing means are operatively connected to said programmable control means for conveying one or more signals indicative of said cure parameters within said one or more cure volumes from said cure sensing means to said programmable control means.
18. A system according to claim 17, wherein said programmable control means is adapted to compare said signals indicative of said temperatures within respective ones of said one or more cure volumes with respective ones of one or more reference signals representing respective target ranges of said temperatures within said one or more cure volumes and to analyse the results of said comparison so as to generate a second set of delta signals for respective sending by said programmable control means to said heating units to thereby proportionally vary the respective variable heating unit levels of one or more of said heating units in one or more of said arrays of said heating units in a manner conducive to producing values of the cure parameters at a subsequent time that are closer to a target value thereof for said respective cure volumes at said subsequent time; wherein said heating units are further adapted to vary said heating unit levels in accordance with said second set of delta signals.
19. A system according to claim 18, wherein each said temperature sensing means comprises one or more temperature sensors for generating said signals indicative of said temperatures.
20. A system according to claim 19, wherein said temperature sensors are thermocouples.
21. A system according to claim 19, wherein said temperature sensors are infrared-based sensors.
22. A system according to claim 20, wherein each of said heating units comprises a halogen light bulb.
23. A system according to claim 22, wherein each said halogen light bulb has a reflector means; wherein said reflector means is aimed to reflect light toward said mould when said housing is in said closed configuration.
24. A system according to claim 23, wherein said cure sensors are selected from a group comprising ultrasonic, resistance, capacitance, electrically and dielectrically based sensors.
25. A system according to claim 24, wherein said programmable control means comprises a digital signal processor.
26. A system according to claim 25, wherein said housing further comprises a mechanism for moving said housing portions between said open configuration and said closed configuration.
27. A system according to claim 1, wherein each of said heating units comprises a halogen light bulb.
CA2593163A 2006-07-06 2007-07-06 System for resin curing Expired - Fee Related CA2593163C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2593163A CA2593163C (en) 2006-07-06 2007-07-06 System for resin curing

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2,551,728 2006-07-06
CA002551728A CA2551728A1 (en) 2006-07-06 2006-07-06 System for resin curing
CA2593163A CA2593163C (en) 2006-07-06 2007-07-06 System for resin curing

Publications (2)

Publication Number Publication Date
CA2593163A1 true CA2593163A1 (en) 2008-01-06
CA2593163C CA2593163C (en) 2010-08-31

Family

ID=38920845

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2593163A Expired - Fee Related CA2593163C (en) 2006-07-06 2007-07-06 System for resin curing

Country Status (1)

Country Link
CA (1) CA2593163C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014048436A1 (en) * 2012-09-26 2014-04-03 Othonia Curing Technology Aps Computer controlled uv led curing apparatus
EP2862701A1 (en) * 2013-10-15 2015-04-22 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Molding device
EP3064342A3 (en) * 2015-02-12 2016-11-09 Zodiac Seats UK Limited Tool for curing a composite component
CN109501320A (en) * 2018-12-21 2019-03-22 成都易华天宇试验设备有限责任公司 A kind of curing oven suitable for solidifying aerospace composite

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014048436A1 (en) * 2012-09-26 2014-04-03 Othonia Curing Technology Aps Computer controlled uv led curing apparatus
EP2862701A1 (en) * 2013-10-15 2015-04-22 AIRBUS HELICOPTERS DEUTSCHLAND GmbH Molding device
US9283696B2 (en) 2013-10-15 2016-03-15 Airbus Helicopters Deutschland GmbH Molding device
EP3064342A3 (en) * 2015-02-12 2016-11-09 Zodiac Seats UK Limited Tool for curing a composite component
US11305499B2 (en) 2015-02-12 2022-04-19 Safran Seats GB Limited Tool for curing a composite component
US11724469B2 (en) 2015-02-12 2023-08-15 Safran Seats GB Limited Tool for curing a composite component
CN109501320A (en) * 2018-12-21 2019-03-22 成都易华天宇试验设备有限责任公司 A kind of curing oven suitable for solidifying aerospace composite

Also Published As

Publication number Publication date
CA2593163C (en) 2010-08-31

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EEER Examination request
MKLA Lapsed

Effective date: 20160706

MKLA Lapsed

Effective date: 20160706