GB835822A - Improvements in or relating to moulds, jigs and like structures - Google Patents

Improvements in or relating to moulds, jigs and like structures

Info

Publication number
GB835822A
GB835822A GB3246857A GB3246857A GB835822A GB 835822 A GB835822 A GB 835822A GB 3246857 A GB3246857 A GB 3246857A GB 3246857 A GB3246857 A GB 3246857A GB 835822 A GB835822 A GB 835822A
Authority
GB
United Kingdom
Prior art keywords
surface coat
fibrous material
resin
synthetic resin
lightweight filler
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
GB3246857A
Inventor
Dominic Smith
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.)
Bakelite Ltd
Original Assignee
Bakelite 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
Application filed by Bakelite Ltd filed Critical Bakelite Ltd
Priority to GB3246857A priority Critical patent/GB835822A/en
Publication of GB835822A publication Critical patent/GB835822A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/32—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof from compositions containing microballoons, e.g. syntactic foams
    • 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
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)

Abstract

Moulds, jigs, and like structures are made by applying to the surface of a pattern in the following sequence: (i) a synthetic resin surface coat, particularly one which may be hardened at room temperature, e.g. an unsaturated polyester or an epoxide resin; (ii) a woven or mat sheet of a fibrous material, e.g. glass fibres; and (iii) a mixture of a lightweight filler and a synthetic resin binding agent, e.g. an epoxide or polyester resin as in (i) and allowing the synthetic resin in the composite article to harden. The surface coat usually contains a mineral filler, e.g. slate dust, and a thixotropic agent, e.g. silica aerogel. The lightweight filler may consist of hollow particles formed from synthetic resinous materials, e.g. phenol-formaldehyde or polystyrene resin or naturallyoccurring materials which have been heat-treated to reduce their bulk density to less than 20 lb/cu. ft., e.g. perlite or vermiculite. It is customary to allow the surface coat to gel in which case a second surface coat and/or a layer of adhesive is applied before covering with the fibrous material which is preferably glass-fibre. If greater strength is needed a further layer of fibrous material may be applied after the mixture containing the lightweight filler.ALSO:Moulds, jigs, and like structures are made by applying to the surface of a pattern in the following sequence (i) a synthetic resin surface coat, particularly one which may be hardened at room temperature, e.g. an unsaturated polyester or an epoxide resin (ii) a woven or mat sheet of a fibrous material, and (iii) a mixture of a lightweight filler and a synthetic resin binding agent, e.g. an epoxide or polyester resin as in (i) and allowing the synthetic resin in the composite article to harden. The surface coat usually contains a mineral filler, e.g. slate dust, and a thixotropic agent, e.g. silica aerogel. The lightweight filler may consist of hollow particles formed from synthetic resinous materials, e.g. phenol-formaldehyde or polystyrene resin or naturally-occurring materials which have been heat-treated to reduce their bulk density to less than 20 lb./cu. ft., e.g. perlite or vermiculite. It is customary to allow the surface coat to gel in which case a second surface coat and/or a layer of adhesive is applied before covering with the fibrous material which is preferably glass-fibre. If greater strength is needed a further layer of fibrous material may be applied after the mixture containing the lightweight filler.
GB3246857A 1957-10-17 1957-10-17 Improvements in or relating to moulds, jigs and like structures Expired GB835822A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3246857A GB835822A (en) 1957-10-17 1957-10-17 Improvements in or relating to moulds, jigs and like structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3246857A GB835822A (en) 1957-10-17 1957-10-17 Improvements in or relating to moulds, jigs and like structures

Publications (1)

Publication Number Publication Date
GB835822A true GB835822A (en) 1960-05-25

Family

ID=10339043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3246857A Expired GB835822A (en) 1957-10-17 1957-10-17 Improvements in or relating to moulds, jigs and like structures

Country Status (1)

Country Link
GB (1) GB835822A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254819A (en) * 1991-04-16 1992-10-21 British Aerospace Tooling for the manufacture of composite articles
CN111958887A (en) * 2020-07-15 2020-11-20 天津爱思达航天科技有限公司 High-precision high-yield carbon foam composite material mold and preparation method
CN111958886A (en) * 2020-07-15 2020-11-20 天津爱思达航天科技有限公司 Universal carbon foam composite material die with high yield and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254819A (en) * 1991-04-16 1992-10-21 British Aerospace Tooling for the manufacture of composite articles
GB2254819B (en) * 1991-04-16 1995-07-26 British Aerospace Tooling for the manufacture of composite articles
CN111958887A (en) * 2020-07-15 2020-11-20 天津爱思达航天科技有限公司 High-precision high-yield carbon foam composite material mold and preparation method
CN111958886A (en) * 2020-07-15 2020-11-20 天津爱思达航天科技有限公司 Universal carbon foam composite material die with high yield and preparation method thereof

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