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FR2214577A1 - Injection rate control for injection moulding presses - with changes of rate effected gradually without shock - Google Patents

Injection rate control for injection moulding presses - with changes of rate effected gradually without shock

Info

Publication number
FR2214577A1
FR2214577A1 FR7301667A FR7301667A FR2214577A1 FR 2214577 A1 FR2214577 A1 FR 2214577A1 FR 7301667 A FR7301667 A FR 7301667A FR 7301667 A FR7301667 A FR 7301667A FR 2214577 A1 FR2214577 A1 FR 2214577A1
Authority
FR
France
Prior art keywords
injection
rate
shock
changes
rate control
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
FR7301667A
Other languages
French (fr)
Other versions
FR2214577B1 (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.)
Rhone Progil SA
Original Assignee
Rhone Progil SA
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 Rhone Progil SA filed Critical Rhone Progil SA
Priority to FR7301667A priority Critical patent/FR2214577A1/en
Priority to JP818374A priority patent/JPS49105858A/ja
Priority to IT4777574A priority patent/IT1008708B/en
Priority to DE19742402210 priority patent/DE2402210C3/en
Priority to NL7400620A priority patent/NL7400620A/xx
Priority to BE139944A priority patent/BE809899A/en
Publication of FR2214577A1 publication Critical patent/FR2214577A1/en
Application granted granted Critical
Publication of FR2214577B1 publication Critical patent/FR2214577B1/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
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould

Landscapes

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

Abstract

In jection moulding of plastics utilising injection at a programmed rate whereby each change of rate is carried out progressively and without shock and can be modified without modification of the control appts for the change. Specif. each change of injection rate is a linear function of the time.
FR7301667A 1973-01-18 1973-01-18 Injection rate control for injection moulding presses - with changes of rate effected gradually without shock Granted FR2214577A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7301667A FR2214577A1 (en) 1973-01-18 1973-01-18 Injection rate control for injection moulding presses - with changes of rate effected gradually without shock
JP818374A JPS49105858A (en) 1973-01-18 1974-01-17
IT4777574A IT1008708B (en) 1973-01-18 1974-01-17 IMPROVEMENT OF THE PROCESS AND THE INJECTION PRESSES OF PLASTIC MATERIALS
DE19742402210 DE2402210C3 (en) 1973-01-18 1974-01-17 Device for injection molding of plastics with programmed injection molding speed
NL7400620A NL7400620A (en) 1973-01-18 1974-01-17
BE139944A BE809899A (en) 1973-01-18 1974-01-18 IMPROVEMENT OF THE PROCESS AND PRESSES FOR INJECTING PLASTICS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7301667A FR2214577A1 (en) 1973-01-18 1973-01-18 Injection rate control for injection moulding presses - with changes of rate effected gradually without shock

Publications (2)

Publication Number Publication Date
FR2214577A1 true FR2214577A1 (en) 1974-08-19
FR2214577B1 FR2214577B1 (en) 1975-08-22

Family

ID=9113461

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7301667A Granted FR2214577A1 (en) 1973-01-18 1973-01-18 Injection rate control for injection moulding presses - with changes of rate effected gradually without shock

Country Status (5)

Country Link
JP (1) JPS49105858A (en)
BE (1) BE809899A (en)
FR (1) FR2214577A1 (en)
IT (1) IT1008708B (en)
NL (1) NL7400620A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK155935C (en) * 1979-05-16 1989-10-16 Rohm & Haas SUBSTITUTED DIPHENYLETHERS, HERBICIDE PREPARATIONS CONTAINING THESE COMPOUNDS AND PROCEDURES TO COMBAT WEEDS
US4551171A (en) * 1980-02-01 1985-11-05 Rhone-Poulenc, Inc. 2-Nitro-5-(substituted-phenoxy) phenylalkanone oxime and imine derivatives as herbicides

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
DE2402210A1 (en) 1974-08-08
JPS49105858A (en) 1974-10-07
DE2402210B2 (en) 1976-09-23
FR2214577B1 (en) 1975-08-22
IT1008708B (en) 1976-11-30
NL7400620A (en) 1974-07-22
BE809899A (en) 1974-07-18

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Legal Events

Date Code Title Description
ST Notification of lapse