GB1200927A - Improvements relating to pressure-moulding - Google Patents

Improvements relating to pressure-moulding

Info

Publication number
GB1200927A
GB1200927A GB4612167A GB4612167A GB1200927A GB 1200927 A GB1200927 A GB 1200927A GB 4612167 A GB4612167 A GB 4612167A GB 4612167 A GB4612167 A GB 4612167A GB 1200927 A GB1200927 A GB 1200927A
Authority
GB
United Kingdom
Prior art keywords
mandrel
mould
moulding
cavity
forced
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
GB4612167A
Inventor
Patrick John Hayes
Geoffrey Marcus Heath
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.)
Imperial Metal Industries Kynoch Ltd
Original Assignee
Imperial Metal Industries Kynoch 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 Imperial Metal Industries Kynoch Ltd filed Critical Imperial Metal Industries Kynoch Ltd
Priority to GB4612167A priority Critical patent/GB1200927A/en
Publication of GB1200927A publication Critical patent/GB1200927A/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • 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
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • B29C33/505—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible cores or mandrels, e.g. inflatable
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

1,200,927. Expansible cores. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. 25 Sept., 1968 [9 Oct., 1967], No. 46121/67. Heading B5A. [Also in Division F3] In the moulding of a tube, one end whereof may be closed e.g. an igniter chamber for a solid rocket motor, a cylindrical blank, e.g. of seven layers of asbestos fibre/phenolic resin composite wherein 70% of the fibres are aligned in the circumferential direction, is moulded against the cylindrical cavity 9 of a mould 1 by a rubber mandrel 18 which is radially expanded by forcing into a mandrel cavity 22, of constantly tapering cross-section away from the open end thereof, a similarly tapered shaft 12 of larger cross-section than the cavity 22. In the moulding of an open ended tube, tapered shafts may be forced into tapered cavities extending from either end into the mandrel. The shaft 12, which may be greased, is forced into the mandrel 18, through a centrallizing ring 14, by pressure exerted by an upper press platen. Excess resin is forced out of a drainage hole 28, and air entrapped within the mandrel 18 escapes via a shaft bore 30. The mould 1 is then heated e.g. to 145-160‹ C. for 30 mins. to cure the resin by passing steam through a mould jacket 5, followed by cooling by water circulated therethrough. Release of the moulded blank from the mould may be facilitated by a parting agent applied to the blank external surface. The moulding incorporates an aluminium insert 26.
GB4612167A 1967-10-09 1967-10-09 Improvements relating to pressure-moulding Expired GB1200927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4612167A GB1200927A (en) 1967-10-09 1967-10-09 Improvements relating to pressure-moulding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4612167A GB1200927A (en) 1967-10-09 1967-10-09 Improvements relating to pressure-moulding

Publications (1)

Publication Number Publication Date
GB1200927A true GB1200927A (en) 1970-08-05

Family

ID=10439924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4612167A Expired GB1200927A (en) 1967-10-09 1967-10-09 Improvements relating to pressure-moulding

Country Status (1)

Country Link
GB (1) GB1200927A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2455162C1 (en) * 2010-12-21 2012-07-10 Открытое акционерное общество "Композит" (ОАО "Композит") Device for fabricating tubes from composite materials
ITUA20163532A1 (en) * 2016-05-18 2017-11-18 Demak S R L Resin process of a stator.
CN110165850A (en) * 2018-02-15 2019-08-23 株式会社仲氏液控 Resin molding method, fixture and resin molding machine
CN115320046A (en) * 2022-09-07 2022-11-11 无锡铃派科技有限公司 A cooling system and dysmorphism are moulded a piece injection moulding device for dysmorphism is moulded plastics

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2455162C1 (en) * 2010-12-21 2012-07-10 Открытое акционерное общество "Композит" (ОАО "Композит") Device for fabricating tubes from composite materials
ITUA20163532A1 (en) * 2016-05-18 2017-11-18 Demak S R L Resin process of a stator.
WO2017199075A1 (en) * 2016-05-18 2017-11-23 Demak S.R.L. Process for over-moulding an outer stator
US10958145B2 (en) 2016-05-18 2021-03-23 Demak S.R.L. Process for over-moulding an outer stator
EP3459161B1 (en) * 2016-05-18 2023-09-06 Demak S.r.l. Process for over-moulding an outer stator and expandible central cylindrical mandrel for over-moulding
CN110165850A (en) * 2018-02-15 2019-08-23 株式会社仲氏液控 Resin molding method, fixture and resin molding machine
CN115320046A (en) * 2022-09-07 2022-11-11 无锡铃派科技有限公司 A cooling system and dysmorphism are moulded a piece injection moulding device for dysmorphism is moulded plastics
CN115320046B (en) * 2022-09-07 2023-10-20 无锡铃派科技有限公司 Cooling system for special-shaped injection molding and special-shaped plastic part injection molding equipment

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Legal Events

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