IT1260454B - Procedimento per l'iniettofusione di parti sagomate in materia artificiale - Google Patents

Procedimento per l'iniettofusione di parti sagomate in materia artificiale

Info

Publication number
IT1260454B
IT1260454B ITMI920145A ITMI920145A IT1260454B IT 1260454 B IT1260454 B IT 1260454B IT MI920145 A ITMI920145 A IT MI920145A IT MI920145 A ITMI920145 A IT MI920145A IT 1260454 B IT1260454 B IT 1260454B
Authority
IT
Italy
Prior art keywords
injection
pressure
shaped parts
screw piston
hydraulic
Prior art date
Application number
ITMI920145A
Other languages
English (en)
Original Assignee
Bosch Gmbh Robert
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 Bosch Gmbh Robert filed Critical Bosch Gmbh Robert
Publication of ITMI920145A0 publication Critical patent/ITMI920145A0/it
Publication of ITMI920145A1 publication Critical patent/ITMI920145A1/it
Application granted granted Critical
Publication of IT1260454B publication Critical patent/IT1260454B/it

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
    • 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

Landscapes

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

Abstract

In un procedimento per l'iniettofusione di parti sagomate artificiale rapidamente indurente, per materiale artificiale (massa di sagomatura) plastificata mediante un pistone a vite (12) rotante, con avanzamento assiale del pistone (12) a vite, provocato per mezzo di un cilindro idraulico (17), sotto pressione viene introdotta in uno stampo di iniettofusione (23) e dopo la fine dell'iniezione viene mantenuta una pressione susseguente per un preassegnato intervallo di tempo (fase di pressione susseguente). Per migliorare la qualità superficiale delle parti sagomate, durante la fase di post-pressione la pressione idraulica nel cilindro idraulico (17) viene regolata in modo tale che la momentanea posizione di spostamento assiale del pistone (12) a vite viene influenzata in modi che si impedisce un trasporto di massa di sagomatura nello stampo di iniettofusione (23) oppure fuori da questo in ogni istante della fase di pressione susseguente.
ITMI920145A 1991-02-01 1992-01-28 Procedimento per l'iniettofusione di parti sagomate in materia artificiale IT1260454B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4102971A DE4102971A1 (de) 1991-02-01 1991-02-01 Verfahren zum spritzgiessen von formteilen aus kunststoff

Publications (3)

Publication Number Publication Date
ITMI920145A0 ITMI920145A0 (it) 1992-01-28
ITMI920145A1 ITMI920145A1 (it) 1992-08-02
IT1260454B true IT1260454B (it) 1996-04-09

Family

ID=6424135

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI920145A IT1260454B (it) 1991-02-01 1992-01-28 Procedimento per l'iniettofusione di parti sagomate in materia artificiale

Country Status (5)

Country Link
JP (1) JPH04310718A (it)
CH (1) CH684582A5 (it)
DE (1) DE4102971A1 (it)
FR (1) FR2672236B1 (it)
IT (1) IT1260454B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2750919A1 (fr) * 1996-07-09 1998-01-16 Transvalor Sa Procede de commande et de regulation d'une presse de moulage par injection
DE19828752A1 (de) * 1998-06-27 1999-12-30 Bosch Gmbh Robert Regelanordnung für ein hydraulisches System

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE360228A (it) *
GB234165A (en) * 1924-02-15 1925-05-15 English Electric Co Ltd Improvements in and relating to the utilisation of steam power in steam turbines
GB1106037A (en) * 1965-05-26 1968-03-13 Associated Electrical Idustrie Improvements in or relating to steam turbine installations
DE1551209B2 (de) * 1966-06-11 1971-02-11 Siemens AG, 1000 Berlin u. 8000 München Einwelhger Dampfturbinensatz mit dampfbeheiztem Zwischenuberhitzer und die sem vorgeschaltetem Wasserabscheider
DE2312725A1 (de) * 1973-03-14 1974-09-26 Kraftwerk Union Ag Anordnung zur wasserabscheidung und zwischenueberhitzung von sattdampf
DE2539066A1 (de) * 1975-09-03 1977-03-17 Bosch Gmbh Robert Bestimmung der erstarrungsphase bei spritzgiessmaschinen
JPS60120026A (ja) * 1983-12-02 1985-06-27 Mitsubishi Heavy Ind Ltd 射出成形機の保持圧制御方法
JPH0641159B2 (ja) * 1986-07-28 1994-06-01 三菱重工業株式会社 射出成形機の射出制御方法及び装置
JP2597881B2 (ja) * 1988-05-10 1997-04-09 ファナック株式会社 樹脂漏れ検出装置
JPH1014016A (ja) * 1996-06-19 1998-01-16 Mitsubishi Heavy Ind Ltd リニアモータ装置

Also Published As

Publication number Publication date
ITMI920145A0 (it) 1992-01-28
FR2672236B1 (fr) 1997-08-01
DE4102971A1 (de) 1992-08-13
CH684582A5 (de) 1994-10-31
ITMI920145A1 (it) 1992-08-02
FR2672236A1 (fr) 1992-08-07
JPH04310718A (ja) 1992-11-02

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970127