DE2223609A1 - Verfahren und Vorrichtung zum Erfassen und Regeln der Wandstaerke stranggepressten Materials - Google Patents
Verfahren und Vorrichtung zum Erfassen und Regeln der Wandstaerke stranggepressten MaterialsInfo
- Publication number
- DE2223609A1 DE2223609A1 DE19722223609 DE2223609A DE2223609A1 DE 2223609 A1 DE2223609 A1 DE 2223609A1 DE 19722223609 DE19722223609 DE 19722223609 DE 2223609 A DE2223609 A DE 2223609A DE 2223609 A1 DE2223609 A1 DE 2223609A1
- Authority
- DE
- Germany
- Prior art keywords
- wall thickness
- thickness
- extruded
- ultrasonic
- signal
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims description 147
- 238000000034 method Methods 0.000 title claims description 39
- 230000001105 regulatory effect Effects 0.000 title claims description 5
- 238000001125 extrusion Methods 0.000 claims description 30
- 239000012815 thermoplastic material Substances 0.000 claims description 30
- 238000002844 melting Methods 0.000 claims description 17
- 230000008018 melting Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 14
- 238000002604 ultrasonography Methods 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 claims description 2
- 230000011664 signaling Effects 0.000 claims 2
- 239000011324 bead Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 claims 1
- 230000002441 reversible effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 20
- 239000004800 polyvinyl chloride Substances 0.000 description 8
- 229920000915 polyvinyl chloride Polymers 0.000 description 8
- 229920001169 thermoplastic Polymers 0.000 description 8
- 239000004416 thermosoftening plastic Substances 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000009477 glass transition Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920006125 amorphous polymer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003000 extruded plastic Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- CVOFKRWYWCSDMA-UHFFFAOYSA-N 2-chloro-n-(2,6-diethylphenyl)-n-(methoxymethyl)acetamide;2,6-dinitro-n,n-dipropyl-4-(trifluoromethyl)aniline Chemical compound CCC1=CC=CC(CC)=C1N(COC)C(=O)CCl.CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O CVOFKRWYWCSDMA-UHFFFAOYSA-N 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92114—Dimensions
- B29C2948/92152—Thickness
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92447—Moulded article
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92933—Conveying, transporting or storage of articles
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/9298—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1487571A GB1370946A (en) | 1971-05-14 | 1971-05-14 | Extrusion of thermoplastics materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2223609A1 true DE2223609A1 (de) | 1972-11-30 |
Family
ID=10049054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19722223609 Pending DE2223609A1 (de) | 1971-05-14 | 1972-05-15 | Verfahren und Vorrichtung zum Erfassen und Regeln der Wandstaerke stranggepressten Materials |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2223609A1 (https=) |
| FR (1) | FR2139545A5 (https=) |
| GB (1) | GB1370946A (https=) |
| NL (1) | NL7206516A (https=) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0118672A1 (de) * | 1983-02-12 | 1984-09-19 | Battenfeld Extrusionstechnik GmbH | Verfahren und Vorrichtung zum Konstanthalten der Wandstärke beim Extrudieren von Blasfolien, Rohren oder rohrförmigen Strängen aus Kunststoff |
| EP0287551A1 (en) * | 1987-04-03 | 1988-10-19 | Cincinnati Milacron Inc. | Method of controlling the thickness of an extruded plastic article |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA728754B (en) * | 1972-11-18 | 1973-08-29 | Hepworth Plastics Ltd | Improvements in or relating to the extrusion of plastics pipes |
| US4160385A (en) * | 1977-06-30 | 1979-07-10 | E. I. Dupont De Nemours And Co. | Pipe quality monitoring mechanism |
| FR2424127A1 (fr) * | 1978-04-28 | 1979-11-23 | Fabrications Et | Dispositif de fabrication, par extrusion, d'un fil metallique sous gaine thermoplastique |
| US4520672A (en) * | 1982-08-19 | 1985-06-04 | Saint Amour John D | Thickness measuring |
| DE3236036C2 (de) * | 1982-09-29 | 1985-01-17 | Elbatainer Kunststoff- Und Verpackungsgesellschaft Mbh, 7505 Ettlingen | Verfahren zur Ultraschallmessung der Wandstärke von Kunststoffhohlkörpern |
| US4490316A (en) * | 1983-06-29 | 1984-12-25 | Caterpillar Tractor Co. | Apparatus and method for controlling internal size of an extruded hose |
| US4740146A (en) * | 1986-07-25 | 1988-04-26 | Peter Angelbeck | Apparatus for measuring and controlling the wall thickness of plastic pipes |
| DE3906363C1 (https=) * | 1989-03-01 | 1990-11-08 | Inoex Gmbh Innovationen Und Ausruestungen Fuer Die Extrusionstechnik, 4970 Bad Oeynhausen, De | |
| US5062299A (en) * | 1990-01-05 | 1991-11-05 | Lever Brothers Company, Division Of Conopco, Inc. | Apparatus and method for detecting inhomogeneities in semi-plastic substances through ultrasound |
| DE4019865A1 (de) * | 1990-06-22 | 1992-01-09 | Wieland Werke Ag | Messeinrichtung zur messung der wanddicke bzw. der ungleichwandigkeit an laufenden rohren und rohrziehvorrichtung mit mindestens einer solchen messeinrichtung |
-
1971
- 1971-05-14 GB GB1487571A patent/GB1370946A/en not_active Expired
-
1972
- 1972-05-15 FR FR7217327A patent/FR2139545A5/fr not_active Expired
- 1972-05-15 DE DE19722223609 patent/DE2223609A1/de active Pending
- 1972-05-15 NL NL7206516A patent/NL7206516A/xx unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0118672A1 (de) * | 1983-02-12 | 1984-09-19 | Battenfeld Extrusionstechnik GmbH | Verfahren und Vorrichtung zum Konstanthalten der Wandstärke beim Extrudieren von Blasfolien, Rohren oder rohrförmigen Strängen aus Kunststoff |
| EP0287551A1 (en) * | 1987-04-03 | 1988-10-19 | Cincinnati Milacron Inc. | Method of controlling the thickness of an extruded plastic article |
| US4882104A (en) * | 1987-04-03 | 1989-11-21 | Cincinnati Milacron, Inc. | Method of controlling the thickness of an extruded plastic article |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1370946A (en) | 1974-10-16 |
| NL7206516A (https=) | 1972-11-16 |
| FR2139545A5 (https=) | 1973-01-05 |
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