GB1213422A - Apparatus for the manufacture of moulded articles from expanded materials - Google Patents

Apparatus for the manufacture of moulded articles from expanded materials

Info

Publication number
GB1213422A
GB1213422A GB6727/69A GB672769A GB1213422A GB 1213422 A GB1213422 A GB 1213422A GB 6727/69 A GB6727/69 A GB 6727/69A GB 672769 A GB672769 A GB 672769A GB 1213422 A GB1213422 A GB 1213422A
Authority
GB
United Kingdom
Prior art keywords
mould
low thermal
corrosion resistant
heated gas
resistant material
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
GB6727/69A
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.)
Erich Lendle & Co K G
Original Assignee
Erich Lendle & Co K G
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 Erich Lendle & Co K G filed Critical Erich Lendle & Co K G
Publication of GB1213422A publication Critical patent/GB1213422A/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • 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
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3415—Heating or cooling
    • B29C44/3426—Heating by introducing steam in the mould

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

1,213,422. Apparatus for foamed thermoplastics. ERICH LENDLE & CO. K.G. 7 Feb., 1969 [10 Feb., 1968], No. 6727/69. Heading B5A. In an apparatus for forming articles from partly expanded articles by the action of a heated gas supplied from a chamber surrounding the mould, the surfaces of the gas chamber which contact the heated gas, other than the mould walls, are covered with a layer of corrosion resistant material having low thermal conductivity and low thermal capacity. The material is preferably a silicone rubber or other synthetic plastics material. As shown, the mould is mounted in a frame comprising base, 10, side portions 14, 15 and cover-plate 18. The mould cavity is defined by a male section 17 attached to base-plate 26 and a female section comprising a part of an upper plate 31 and a section 16 attached thereto. The mould cavity is filled from pistol 6 and bores 22 for the entry of a heated gas e.g. steam are provided in the mould walls. The heated gas chamber between the mould walls and the frame may be reduced in volume by bodies 23 of low thermal conductivity and low thermal capacity which are either corrosion resistant or are covered by the corrosion resistant material. The corrosion resistant material may be continued around the edge of the side portions 14, 15 to form a seal 12 co-operating with a groove 13. A pipe 24 with outlets 25 is provided for spraying cooling liquid on to the mould. Ejectors 7 are provided in coverplate 18 and upper plate 31 for removing the foamed article after separation of the mould parts.
GB6727/69A 1968-02-10 1969-02-07 Apparatus for the manufacture of moulded articles from expanded materials Expired GB1213422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681704806 DE1704806A1 (en) 1968-02-10 1968-02-10 Device for the production of moldings from expanded materials

Publications (1)

Publication Number Publication Date
GB1213422A true GB1213422A (en) 1970-11-25

Family

ID=5688763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6727/69A Expired GB1213422A (en) 1968-02-10 1969-02-07 Apparatus for the manufacture of moulded articles from expanded materials

Country Status (3)

Country Link
DE (1) DE1704806A1 (en)
FR (1) FR1600363A (en)
GB (1) GB1213422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800005329A1 (en) * 2018-05-14 2019-11-14 CONNECTION SYSTEM BETWEEN HOPPER AND INJECTORS IN EQUIPMENT FOR MOLDING OF SINTERED EXPANDED RESIN BEADS.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0118575A1 (en) * 1983-03-11 1984-09-19 Sodemape Holding AG Mould set comprising at least three parts for the production of expanded thermoplastic mouldings
DE3629885C1 (en) * 1986-09-02 1988-03-10 Hahn Ortwin Sintering device for thermoplastic, foamable plastics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800005329A1 (en) * 2018-05-14 2019-11-14 CONNECTION SYSTEM BETWEEN HOPPER AND INJECTORS IN EQUIPMENT FOR MOLDING OF SINTERED EXPANDED RESIN BEADS.

Also Published As

Publication number Publication date
DE1704806A1 (en) 1971-05-19
FR1600363A (en) 1970-07-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees