ES442176A1 - Mould for injection moulding - Google Patents

Mould for injection moulding

Info

Publication number
ES442176A1
ES442176A1 ES442176A ES442176A ES442176A1 ES 442176 A1 ES442176 A1 ES 442176A1 ES 442176 A ES442176 A ES 442176A ES 442176 A ES442176 A ES 442176A ES 442176 A1 ES442176 A1 ES 442176A1
Authority
ES
Spain
Prior art keywords
mold
semi
interspace
molding
molds
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
ES442176A
Other languages
Spanish (es)
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.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Publication of ES442176A1 publication Critical patent/ES442176A1/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7337—Heating or cooling of the mould using 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7312—Construction of heating or cooling fluid flow channels
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7312—Construction of heating or cooling fluid flow channels
    • B29C2045/7325—Mould cavity linings for covering fluid channels or provided therewith

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Improvements in openable injection molding molds for thermoplastic materials, preferably semi-expandable materials, suitable for producing semi-expanded manufactured articles, characterized by providing a fixed semi-mold and a mobile semi-mold, both entirely made of non-conductive material to resist efforts and functions of the molding process, each half-mold presenting on the inner face a false cavity, complementary to that of the other half-mold, against which a short interspace is formed, so that a continuous thin metal shell is formed which forms the unique and effective cavity of the mold, providing in said half-molds channels or grooves for the influx in said interspace and for the exit thereof of the respective heating fluids from the molding and cooling stage once the injection molding is completed. (Machine-translation by Google Translate, not legally binding)
ES442176A 1974-10-30 1975-10-29 Mould for injection moulding Expired ES442176A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT28965/74A IT1030763B (en) 1974-10-30 1974-10-30 THERMALLY INSULATED INJECTION MOLD FOR PREFERABLY SEMI-EXPANDED PLASIC MATERIALS

Publications (1)

Publication Number Publication Date
ES442176A1 true ES442176A1 (en) 1977-03-16

Family

ID=11225166

Family Applications (1)

Application Number Title Priority Date Filing Date
ES442176A Expired ES442176A1 (en) 1974-10-30 1975-10-29 Mould for injection moulding

Country Status (8)

Country Link
BE (1) BE835058A (en)
DE (1) DE2548094A1 (en)
ES (1) ES442176A1 (en)
FR (1) FR2289314A1 (en)
GB (1) GB1523778A (en)
IT (1) IT1030763B (en)
NL (1) NL7512466A (en)
SE (1) SE7511926L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH646355A5 (en) * 1980-02-01 1984-11-30 Buehler Ag Geb METHOD AND DEVICE FOR DIE CASTING MELT LIQUID METAL.
US4390486A (en) * 1981-03-19 1983-06-28 Ex-Cell-O Corporation Method and apparatus for heating a mold cavity uniformly
DE3572325D1 (en) * 1985-05-22 1989-09-21 Vyrobni Hospod Jednotka Suprap Method and device for injection moulding thermoplastic materials
GB2239626A (en) * 1990-01-09 1991-07-10 William Douglas Lamb A method of making a mould provided with cooling means
JP3859620B2 (en) 2003-06-16 2006-12-20 小野産業株式会社 Method for producing foamed resin molded product
CN101287580B (en) * 2005-09-21 2011-08-03 三菱重工业株式会社 Mold, mold temperature regulation method, mold temperature regulation device, injection molding method, injection molding machine, and thermoplastic resin sheet
CN109016326B (en) * 2018-08-03 2021-01-29 合肥艾普科技有限公司 EPP forming equipment and process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3671168A (en) * 1971-06-09 1972-06-20 Bischoff Chemical Corp Low heat capacity mold for injection molding

Also Published As

Publication number Publication date
GB1523778A (en) 1978-09-06
IT1030763B (en) 1979-04-10
BE835058A (en) 1976-04-30
DE2548094A1 (en) 1976-05-06
FR2289314B1 (en) 1978-04-07
NL7512466A (en) 1976-05-04
FR2289314A1 (en) 1976-05-28
SE7511926L (en) 1976-05-03

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