IT1260454B - Procedimento per l'iniettofusione di parti sagomate in materia artificiale - Google Patents
Procedimento per l'iniettofusione di parti sagomate in materia artificialeInfo
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000002347 injection Methods 0.000 abstract 5
- 239000007924 injection Substances 0.000 abstract 5
- 239000012237 artificial material Substances 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
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.
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)
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)
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 |
-
1991
- 1991-02-01 DE DE4102971A patent/DE4102971A1/de not_active Withdrawn
- 1991-10-16 CH CH3037/91A patent/CH684582A5/de not_active IP Right Cessation
- 1991-12-12 FR FR9115434A patent/FR2672236B1/fr not_active Expired - Fee Related
-
1992
- 1992-01-28 IT ITMI920145A patent/IT1260454B/it active IP Right Grant
- 1992-01-30 JP JP4015020A patent/JPH04310718A/ja active Pending
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 |