FR2082464A5 - Injection unit - with separately regulated fluid heating circuits in the nose and cylinder - Google Patents

Injection unit - with separately regulated fluid heating circuits in the nose and cylinder

Info

Publication number
FR2082464A5
FR2082464A5 FR7009456A FR7009456A FR2082464A5 FR 2082464 A5 FR2082464 A5 FR 2082464A5 FR 7009456 A FR7009456 A FR 7009456A FR 7009456 A FR7009456 A FR 7009456A FR 2082464 A5 FR2082464 A5 FR 2082464A5
Authority
FR
France
Prior art keywords
cylinder
nose
injection unit
fluid heating
heating circuits
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
FR7009456A
Other languages
French (fr)
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.)
N Schlumberger SAS
Original Assignee
N Schlumberger SAS
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 N Schlumberger SAS filed Critical N Schlumberger SAS
Priority to FR7009456A priority Critical patent/FR2082464A5/en
Application granted granted Critical
Publication of FR2082464A5 publication Critical patent/FR2082464A5/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
    • B29C45/74—Heating or cooling of the injection unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

The injection unit is provided with a controlled circulation of heating fluid through cavities in the cylinder and nose, the cylinder and nose being formed from two separate parts fitting into each other. Fine control of heating allows for variations of flow and different conditions in the nose and the cylinder. Separate heating chambers in the walls of the cylinder and inside the nose have separate entires and exits for heating fluid, brought to headers with control valves on the subside of the cylinder. The cavities may be removable annular grooves.
FR7009456A 1970-03-17 1970-03-17 Injection unit - with separately regulated fluid heating circuits in the nose and cylinder Expired FR2082464A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7009456A FR2082464A5 (en) 1970-03-17 1970-03-17 Injection unit - with separately regulated fluid heating circuits in the nose and cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7009456A FR2082464A5 (en) 1970-03-17 1970-03-17 Injection unit - with separately regulated fluid heating circuits in the nose and cylinder

Publications (1)

Publication Number Publication Date
FR2082464A5 true FR2082464A5 (en) 1971-12-10

Family

ID=9052369

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7009456A Expired FR2082464A5 (en) 1970-03-17 1970-03-17 Injection unit - with separately regulated fluid heating circuits in the nose and cylinder

Country Status (1)

Country Link
FR (1) FR2082464A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324493A (en) * 1979-08-06 1982-04-13 Lavorazione Materie Plastiche L.M.P-S.P.A. Mixer-cooler device for the extrusion of thermoplastic foams
EP0123034A2 (en) * 1983-03-08 1984-10-31 Riedel Kälte- und Klimatechnik GmbH Arrangement for the temperature control of apparatuses that produce or process plastics

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324493A (en) * 1979-08-06 1982-04-13 Lavorazione Materie Plastiche L.M.P-S.P.A. Mixer-cooler device for the extrusion of thermoplastic foams
EP0123034A2 (en) * 1983-03-08 1984-10-31 Riedel Kälte- und Klimatechnik GmbH Arrangement for the temperature control of apparatuses that produce or process plastics
EP0123034A3 (en) * 1983-03-08 1986-11-26 Riedel Kälte- und Klimatechnik GmbH Arrangement for the temperature control of apparatuses that produce or process plastics

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Legal Events

Date Code Title Description
ST Notification of lapse