FR2485986A1 - Dispositif pour agrandir des tubes en polymeres se contractant a chaud - Google Patents
Dispositif pour agrandir des tubes en polymeres se contractant a chaudInfo
- Publication number
- FR2485986A1 FR2485986A1 FR8014844A FR8014844A FR2485986A1 FR 2485986 A1 FR2485986 A1 FR 2485986A1 FR 8014844 A FR8014844 A FR 8014844A FR 8014844 A FR8014844 A FR 8014844A FR 2485986 A1 FR2485986 A1 FR 2485986A1
- Authority
- FR
- France
- Prior art keywords
- sleeves
- tube
- chamber
- hand
- appts
- 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
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
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/06—Making preforms having internal stresses, e.g. plastic memory
- B29C61/08—Making preforms having internal stresses, e.g. plastic memory by stretching tubes
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
- B29C55/24—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes radial
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
CE DISPOSITIF COMPORTE UNE CHAMBRE D'ENTREE 2 ET UNE CHAMBRE DE SORTIE ET DE REFROIDISSEMENT 3, COAXIALES ET PLACEES SUCCESSIVEMENT, EN CONTACT DIRECT, L'UNE DERRIERE L'AUTRE, DANS LE SENS D'AVANCEMENT DU TUBE POLYMERE 1. CHACUNE DES CHAMBRES 2 ET 3 EST CONSTITUEE PAR DES DOUILLES CONJUGUEES 4, 5, 6, 7, 10, 11, 12, 13 AYANT DES FILETAGES 8, 9, 14, 15 SUR LEUR SURFACE INTERIEURE. LES FILETAGES 8, 9, 14, 15 DES DOUILLES VOISINES 4, 5, 6, 7, 10, 11, 12, 13 DE CHAQUE CHAMBRE 2 ET 3 SONT DE SENS CONTRAIRES. LE GROUPE DE DOUILLES 4, 5, 6, 7, 10, 11, 12, 13 DE CHAQUE CHAMBRE 2, 3 AYANT DES FILETAGES 8, 9, 14, 15 DE MEME SENS EST DOTE D'UNE COMMANDE INDIVIDUELLE 16, 17, 18, 19 DE MOUVEMENT DE ROTATION. CE DISPOSITIF PEUT ETRE UTILISE POUR FABRIQUER DES TUBES POLYMERES SE CONTRACTANT A CHAUD ET COMME DISPOSITIF DE TRANSPORT DEPLACANT LES TUBES A UNE VITESSE PREDETERMINEE.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3024284A DE3024284C2 (de) | 1980-06-27 | 1980-06-27 | Vorrichtung zum Aufweiten eines beim Erwärmen schwindenden Rohres aus Kunststoff |
FR8014844A FR2485986A1 (fr) | 1980-06-27 | 1980-07-03 | Dispositif pour agrandir des tubes en polymeres se contractant a chaud |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3024284A DE3024284C2 (de) | 1980-06-27 | 1980-06-27 | Vorrichtung zum Aufweiten eines beim Erwärmen schwindenden Rohres aus Kunststoff |
FR8014844A FR2485986A1 (fr) | 1980-06-27 | 1980-07-03 | Dispositif pour agrandir des tubes en polymeres se contractant a chaud |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2485986A1 true FR2485986A1 (fr) | 1982-01-08 |
FR2485986B1 FR2485986B1 (fr) | 1984-01-06 |
Family
ID=25786260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8014844A Granted FR2485986A1 (fr) | 1980-06-27 | 1980-07-03 | Dispositif pour agrandir des tubes en polymeres se contractant a chaud |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3024284C2 (fr) |
FR (1) | FR2485986A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE451249B (sv) * | 1984-01-27 | 1987-09-21 | Wirsbo Bruks Ab | Forfarande for framstellning av ett lettbojligt plastror med atminstone en krage |
DE3427732A1 (de) * | 1984-07-27 | 1986-03-20 | Overbeck GmbH & Co, 2800 Bremen | Laengenveraenderbarer Trinkhalm und Verfahren zu dessen Herstellung |
DE59203726D1 (de) * | 1991-01-26 | 1995-10-26 | Buehler Ag | Verfahren zur automatischen sackbereitstellung. |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1294975A (fr) * | 1960-05-06 | 1962-06-01 | Du Pont | Procédé et appareil pour la fabrication de tuyaux thermoplastiques |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3270112A (en) * | 1963-02-20 | 1966-08-30 | Int Vulcanizing Corp | Method of making shoes |
-
1980
- 1980-06-27 DE DE3024284A patent/DE3024284C2/de not_active Expired
- 1980-07-03 FR FR8014844A patent/FR2485986A1/fr active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1294975A (fr) * | 1960-05-06 | 1962-06-01 | Du Pont | Procédé et appareil pour la fabrication de tuyaux thermoplastiques |
Also Published As
Publication number | Publication date |
---|---|
DE3024284A1 (de) | 1982-01-21 |
DE3024284C2 (de) | 1982-11-25 |
FR2485986B1 (fr) | 1984-01-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |