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FR2425318A1 - Injection moulding nozzle - with metallic oxide coating to inhibit heat transfer to mould tool - Google Patents

Injection moulding nozzle - with metallic oxide coating to inhibit heat transfer to mould tool

Info

Publication number
FR2425318A1
FR2425318A1 FR7815152A FR7815152A FR2425318A1 FR 2425318 A1 FR2425318 A1 FR 2425318A1 FR 7815152 A FR7815152 A FR 7815152A FR 7815152 A FR7815152 A FR 7815152A FR 2425318 A1 FR2425318 A1 FR 2425318A1
Authority
FR
France
Prior art keywords
nozzle
heat transfer
tool
injection moulding
metallic oxide
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
FR7815152A
Other languages
French (fr)
Other versions
FR2425318B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7815152A priority Critical patent/FR2425318A1/en
Publication of FR2425318A1 publication Critical patent/FR2425318A1/en
Application granted granted Critical
Publication of FR2425318B1 publication Critical patent/FR2425318B1/fr
Granted 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • 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
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C2045/2766—Heat insulation between nozzle and mould

Landscapes

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

Abstract

The nozzle of an injection moulding machine is shaped to provide a full facial contact with the mould surface. Heat transfer between nozzle and tool is inhibited by a coating of a metallic oxide, pref. Zr oxide, on the nozzle/tool interface. Typically the Zr oxide coating is approx. 0.3 mm. thick. Combines a large nozzle/tool contact area (for alignment and wear-resistance) with a thick nozzle section (for adequate heat transfer to prevent setting up of material in the nozzle without risk of overheating of the melt), without extending moulding chill cycles due to heat losses to the tool from the nozzle.
FR7815152A 1978-05-12 1978-05-12 Injection moulding nozzle - with metallic oxide coating to inhibit heat transfer to mould tool Granted FR2425318A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7815152A FR2425318A1 (en) 1978-05-12 1978-05-12 Injection moulding nozzle - with metallic oxide coating to inhibit heat transfer to mould tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7815152A FR2425318A1 (en) 1978-05-12 1978-05-12 Injection moulding nozzle - with metallic oxide coating to inhibit heat transfer to mould tool

Publications (2)

Publication Number Publication Date
FR2425318A1 true FR2425318A1 (en) 1979-12-07
FR2425318B1 FR2425318B1 (en) 1980-11-07

Family

ID=9208536

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7815152A Granted FR2425318A1 (en) 1978-05-12 1978-05-12 Injection moulding nozzle - with metallic oxide coating to inhibit heat transfer to mould tool

Country Status (1)

Country Link
FR (1) FR2425318A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2759318A1 (en) * 1997-02-13 1998-08-14 Inoplast Sa COMPOSITE MATERIAL INJECTION SYSTEM WITHIN A CONFORMATION MOLD
EP3398749A1 (en) * 2017-04-06 2018-11-07 Günther Heisskanaltechnik GmbH Insert for use in an injection molding nozzle and injection molding nozzle with such an insert

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1524962A (en) * 1964-02-12 1968-05-17 Mecanique Et D Outil De Prec S Special nozzle for plastic injection molding machines
FR2070776A1 (en) * 1969-12-09 1971-09-17 Lucas Industries Ltd
FR2073179A5 (en) * 1969-12-11 1971-09-24 Lucas Industries Ltd EQUIPMENT FOR INJECTION MOLDING WITH HEATED INJECTION HEAD

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1524962A (en) * 1964-02-12 1968-05-17 Mecanique Et D Outil De Prec S Special nozzle for plastic injection molding machines
FR2070776A1 (en) * 1969-12-09 1971-09-17 Lucas Industries Ltd
FR2073179A5 (en) * 1969-12-11 1971-09-24 Lucas Industries Ltd EQUIPMENT FOR INJECTION MOLDING WITH HEATED INJECTION HEAD

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2759318A1 (en) * 1997-02-13 1998-08-14 Inoplast Sa COMPOSITE MATERIAL INJECTION SYSTEM WITHIN A CONFORMATION MOLD
WO1998035810A1 (en) * 1997-02-13 1998-08-20 Inoplast System for injecting composite substance inside a forming mould
US6461140B1 (en) 1997-02-13 2002-10-08 Inoplast Of Le Berlioz Domaine De La Gare System for injecting composite substance inside a forming mould
EP3398749A1 (en) * 2017-04-06 2018-11-07 Günther Heisskanaltechnik GmbH Insert for use in an injection molding nozzle and injection molding nozzle with such an insert

Also Published As

Publication number Publication date
FR2425318B1 (en) 1980-11-07

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Legal Events

Date Code Title Description
ST Notification of lapse