DE833252C - Device for the continuous treatment of foils or sheets made of plastics - Google Patents
Device for the continuous treatment of foils or sheets made of plasticsInfo
- Publication number
- DE833252C DE833252C DED885A DED0000885A DE833252C DE 833252 C DE833252 C DE 833252C DE D885 A DED885 A DE D885A DE D0000885 A DED0000885 A DE D0000885A DE 833252 C DE833252 C DE 833252C
- Authority
- DE
- Germany
- Prior art keywords
- plastics
- foils
- steel belts
- continuous treatment
- pressure
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/78—Arrangements for continuous movement of material
- H05B6/788—Arrangements for continuous movement of material wherein an elongated material is moved by applying a mechanical tension to it
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/12—Dielectric heating
- B29C35/14—Dielectric heating for articles of indefinite length
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/248—Moulding mineral fibres or particles bonded with resin, e.g. for insulating or roofing board
- B29C67/249—Moulding mineral fibres or particles bonded with resin, e.g. for insulating or roofing board for making articles of indefinite length
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/10—Thermosetting resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/0854—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns in the form of a non-woven mat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2311/00—Use of natural products or their composites, not provided for in groups B29K2201/00 - B29K2309/00, as reinforcement
- B29K2311/10—Natural fibres, e.g. wool or cotton
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
- B29K2709/08—Glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
- B29K2709/12—Asbestos
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Treatment Of Fiber Materials (AREA)
Description
Vorrichtung zur fortlaufenden Behandlung von Folien oder Bahnen aus Kunststoffen Die Erfindung bezieht stich auf eine Vorrichtung zur fortlaufenden Behandlung von Folien oder Bahnen aus mit Kunststoffen versehenen Faserstoffen unter anwendung von hitze und Druck zwischen endlosen, die zu behandelnden Folien zwischen sich einschliei3enden stahlbändern, zu denen beiderseits bewegliehe, zweckmäßig zu einer endlosen Kette zusammengeschlossene, mit rolen oder Walzen versehene Druckglieder angeordnet sind, die sich mit den Stahlbändern zusammen weitergewegen und auf die der erforderliche I'reßdruck über die Rollen oder Walzen durch damit in Verbeindung stehende hydraulische o. dgl. Einrichtungen zur Druckerzeugung weitergeleitet wird.Device for the continuous treatment of foils or webs Plastics The invention relates to a device for continuous Treatment of foils or webs made of fibers provided with plastics under application of heat and pressure between endless films to be treated between Enclosing steel straps, to which both sides can move, expediently Pressure links connected to an endless chain and provided with rollers or rollers are arranged, which continue to move together with the steel belts and on the the required contact pressure over the rollers or cylinders through in connection with it standing hydraulic o. The like. Devices for pressure generation is passed on.
1 )ie Erfindung hestellt darin, daß l)Cj einer derartigen Vorrichtung zwecks Erhitzung der mit härt-I) aren Kunstharzen oder thermoplastischen Kunststoffen vfersehenen Faserstofbahnen durch heißc Gase durchlässige, die Faserstoffbahnen zwischen sich einschließende Unterlagen, wie z. B. perforierte Stahtlbider, Siebe o. dgl. Anwendung finden, durch welche ein Gasstrom hindurchgedrückt oder gesaugt wird. Diese Gase haben dabei solche Temperaturen, daß eine Erweichung der Kunststoffe bzw. eine Aushärtung des Kunstharzes unter dem Druck der Durchlässigne Begrenzungsflächen eintritt. Die heißen Gase könnten auf der ganzen freien Fläche der Fasserstoffbahn zugeführt bzw. durchgepreßt oder unter Anwendung von Vakuum durchgesaugt werden. Es kann aber auch gleichzeitig auf der einen Seite der Faserstoffbahn mit Überdruck und auf der anderen Seite mit Unterdruck gearbeitet werden. 1) The invention consists in the fact that l) Cj of such a device for the purpose of heating the hardened synthetic resins or thermoplastics The fibrous webs provided by hot gases are permeable to the fibrous webs between them enclosing documents, such as. B. perforated steel bids, screens The like. Find application through which a gas stream is pushed or sucked will. These gases have such temperatures that the plastics are softened or curing of the synthetic resin under the pressure of the permeable boundary surfaces entry. The hot gases could be on the entire free area of the pulp web fed or pressed through or sucked through using a vacuum. But it can also be simultaneously on one side of the fibrous web with overpressure and on the other hand, negative pressure can be used.
Eine bessere Ausnutzung der heißen Gase erhält man gemäß der Erfindung dadurch, daß in den DRuckgliedern beiderseits der durchlässigen Stahlbänder oder Siebe Führungselemente angeordnet sind, mittels deren ein heißer Gasstrom absatzweise und in wechselnder Richtung durch die Faserstoffbahnen hindurchgedrückt bzw. hindurchgesaugt wird. Man erreicht hierdurch, daß der heiße Gzasstrom nur einen Teil der Fläche von der einen Seite durchdringt, sodann nach Umleitung auf die andere Seite durch den augrenaenden Flächenteil gedrückrt wird und so fort. bis die Gase am austrittsende der Vorrichtung ihre Wärme abtgegeben haben. Vorteilhaft wird der Gasstrom bei jeder Umleitung durch 1 leizelemente, die zusätzlich in den Führungsgliedern angeordnet sind, immer wieder erhitzt. A better utilization of the hot gases is obtained man according to the invention in that in the pressure members on both sides of the permeable Steel belts or sieves guide elements are arranged, by means of which a hot Gas flow pushed through the fibrous webs intermittently and in alternating directions or is sucked through. This ensures that the hot gas stream only has one Part of the surface penetrates from one side, then after diversion to the other Side is pressed through the augrenaenden surface part and so on. up the gases have given off their heat at the exit end of the device. The Gas flow with each diversion through 1 leizelemente, which are additionally in the guide links are arranged, heated again and again.
Anstatt den Gasstrom durch die breite Fläche der Faserstoffbahn hindurchzudrücken, kann die Zufuhr der heißen Gase auch an der einen Schmalseite der Faserstoffbahn un ddie Ableitung bzw. Absaugung all der gegenül) erliegenden Schmalseite erfolgen. t)iese Erwärmung auf die Härtetemperatur der Kunstharze oder Erweichungstemperatur der Thermoplaste mittels heißer Gase ist bgesonders dann vorteilhaft, wenn verhältnismäßig dicke und lockere Faserstoffvliese, die dem Gasdurchtritt keinen großen Widerstand entgegensetzen, in der Vorrichtung behandelt werden. Hei dichteren Faserstoffvliesen ist es in vielen Fällen vorteilhafter, wenn hier die Wärmeübertragung in der Hauptsache durch die mit Rollen oder Walzen versehene Druckglieder erfolgt. Diese den 1>reßdruck erzeugenden I-)ruckglieder sind nach einem älteren Vorschlag mit Hohlräumen für die Aufnahme und den Durchfluß eines Heiz- oder Kühlmediums versehen.Instead of pushing the gas flow through the wide area of the fibrous web, the supply of the hot gases can also be done on one narrow side of the fibrous web and the drainage or suction of all the opposite narrow side take place. t) this heating to the hardening temperature of the synthetic resins or softening temperature the thermoplastic by means of hot gases is particularly advantageous when proportionate thick and loose fibrous nonwovens that do not have any great resistance to the passage of gas oppose to be treated in the device. Hei denser fiber fleeces in many cases it is more advantageous if here the heat transfer is the main thing takes place by the pressure members provided with rollers or cylinders. This the 1> rear pressure Generating I-) jerk members are according to an older proposal with cavities for provide the intake and flow of a heating or cooling medium.
%usiitzlich zu dieser Heizung durch heiße Gase können auch in weiterer Ausbildung des Erfindungsgedankens die perforierten Stahlbänder oder gegebenenfalls aus einem ferromagnetischen Werkstoff hergestellte Siebe auf elektrischem Wege durch Induktionsheizung auf die erforderliche Temperatur gebracht werden. Zu diesem Zweck sind die endlosen Bänder von einer oder mehreren, von Wechselstrom hoher Frequenz durchflossenen Spulen umschlossen. Diese induktionsspulen können sowohl vor dem Eintritt der Faserstoffhahn zwischen die Druckglieder als auch an der Austrittsseite angeordnet sein. Im ersterne Falle bewirken die Wechselströme eine Vorwärmung bzw. Vorhärtung, im letzteren Falle ein Erweichung oder Aushärtung der Kunststoffe. It is also useful to have this heating by hot gases in further Formation of the inventive concept, the perforated steel strips or possibly sieves made of a ferromagnetic material by electrical means Induction heating can be brought to the required temperature. To this end are the endless bands of one or more alternating currents of high frequency traversed coils enclosed. These induction coils can be used both in front of the Entry of the fiber valve between the pressure members and on the outlet side be arranged. In the first case, the alternating currents cause preheating or Pre-hardening, in the latter case a softening or hardening of the plastics.
Ähnliche vorteilhafte Wirkungen können gemäß der Erfindung dadurch erzielt werden, daß zwecks unmittelbarer Erwärmung der Faserstoffbahnen durch dielektrische Verlustheizung mittels hochtre(luentem Wechselstrom vor dem Eintritt in die Vorrichtung oder heim Austritt beiderseits der Bahnen Kondensatorplatten oder -rollen vorgesehen sind. die mit einer Hochfrequenzquelle in Verbindung stehen und zwischen denen sich das die Erwärmung bewirkende Hochfrequenzfeld ausbildet. Similar advantageous effects can thereby be achieved according to the invention be achieved that for the purpose of direct heating of the fibrous webs by dielectric Loss heating by means of high-speed alternating current before entering the device or at the exit on both sides of the tracks, capacitor plates or rollers are provided are. which are connected to a high frequency source and between which there are which forms the high-frequency field causing the heating.
Diese Art der Hochfrequenzheizaung eigrnet sich wegen der gleichmäßigen Erwärmung des Stoffes über den ganzen Querscdhnitt besonders für Faserstoffplatten von großerer Diecke.This type of high-frequency heating is suitable because of the uniform Warming of the fabric over the entire cross section, especially for fiber boards of greater thief.
Zur Vorwärmung der mit Kunstharz getränkten Faserstoffbahnen sind nach einem älteren Vorschlag elektrische Heizkörper vorgesehen, die beiderseits der von den Vorratsrollen ablaufenden Faserstoffbahnen angeordnet sind. In vorteilhafter Weiterbildung dieses Vorschlags sind gemäß der Erfindung diese Heizkörper durch Infrarotstahler ersetzt, die eine erhebliche Tiefenwirkung haben und daher auch solche Bahnen durchgehend und gleichmäßig erwärmen. die eine gewisse Stärke besitzen. Als Fasern können sowohl organische als auch anorganische, künstliche oder natürliche Fasern Verwendung finden. wie z. B. Textil-, Cellulose- oder Holzfasern. Glas-, Schlackenwolle o. dgl. Als härtbare Kunstharze kommen in Frage die Kondensationsprodukte der Phenole. Amide oder amine mit Formaldehyd und als thermoplastische Kunststoffe die Polymerisationsprodukte der Vinylhalogenide, wie z. 13. Vinylchlorid oder die Mischpolymerisate der Vinylhalogenide mit anderen ungesättigten organischen Verbindungen. sowie Vinylidenchlorid-J>olymerisate, Polyäthylern uiid 1 Polyamide In der Zeichnung sind Ausführungsbeispiele von Vorrichtungen gemäß der Erfindung veranschaulicht. und zewar zeigt Abb. I einen Längsschnitt durch eine Vorrichtung zur fortlaufenden Behandlung von Folien oder Bändern aus mit Kunststoffen versehenen Faserstoffen, bei der die Heizung der Faserstoffbahn in der Vorrichtung durch heiMe Gase und außerhalb der Vorrichtung zusätzlich durch Hochfrequenz und Infrarotstrahlen erfolgt, Abb. 2 einen Längsschnitt durch eine derartige Vorrichtung, hei der die stahlbänder <lurch Induktion zusätzlich geheizt werden. To preheat the synthetic resin-soaked fiber webs According to an older proposal, electric radiators were provided on both sides the fibrous webs running off the supply rolls are arranged. In advantageous Further development of this proposal are these radiators according to the invention Replaced infrared radiators, which have a considerable depth effect and therefore also heat such strips consistently and evenly. who have a certain strength. Both organic and inorganic, artificial or natural fibers can be used as fibers Find fibers use. such as B. textile, cellulose or wood fibers. Glass-, Slag wool or the like. Condensation products are suitable as hardenable synthetic resins of phenols. Amides or amines with formaldehyde and as thermoplastics the polymerization products of vinyl halides, such as. 13. Vinyl chloride or the Copolymers of vinyl halides with other unsaturated organic compounds. and vinylidene chloride polymers, polyethers and polyamides in the drawing embodiments of devices according to the invention are illustrated. and Fig. I shows a longitudinal section through a device for continuous Treatment of foils or tapes made from fibrous materials provided with plastics, in which the heating of the fibrous web in the device by hot gases and outside the device is also carried out by high frequency and infrared rays, Fig. 2 shows a longitudinal section through such a device, called the steel strips Induction can also be heated.
Urm die oberen walzen I und die unteren Walzen 2 (Abb. 1) sind perforierte endlose Stahlbänder 3,4 gelegt, zwischen denen die Faserstoffbahn 5 hindurchgeführt wird. Zwischen den Walzen sind beiderseits der Stahlbänder I)ruckkörper 6 mit den hintereinander geschalteneit Herizräumen 7, ,s, 9, 10, 11 und 12 angeordnet, durhc die ein Heizmittel, wie z. B. heiße Gase, hindurchgeführt wird. Urm the upper rollers I and the lower rollers 2 (Fig. 1) are perforated endless steel belts 3, 4 laid, between which the fibrous web 5 passed will. Between the rollers on both sides of the steel belts I) are jerk bodies 6 with the switched one behind the other, arranged rooms 7,, s, 9, 10, 11 and 12, durhc a heating means, such as. B. hot gases is passed through.
In der dargestelltenb Vorrichtung wird dieses Heizmittel bei A zugeführt und bei B abgeführt. In den DRuckgliedern sind ferner die Druckrollen 13. druch fwelche der Preßdrcuk von dem Druckkörper auf die perforierten Stahlbänder ül)ertragen wird, vorgesehen. Beim Eintritt in die Vorrichtung werden die von Vorratsrolleu ablaufenden Faserstoffbahnen durch die Infrarotstrahler 14 vorgewärmt. In the device shown, this heating medium is supplied at A and discharged at B. The pressure rollers 13 are also druch in the pressure members fwhich the press pressure from the pressure body on the perforated steel belts ül) endure is provided. When entering the device, the supply rollu expiring fibrous webs preheated by the infrared heater 14.
Sie gelangen alsdann zwischen die Walzen 1, 2 mit den Stahlbändern 3, 4, wo die vorverdichtet werden.You then get between the rollers 1, 2 with the steel belts 3, 4, where they are pre-compressed.
Zwischen den Druckkörpern 6 erfolgt dann die weitere Verdinchtung unter Erweichtung der eingebetteten Kunststoffe. The further Verdinchtung then takes place between the pressure bodies 6 with softening of the embedded plastics.
Nach dem Austritt aus der Vorrichtung wird die Faserstoffbahn zwischen den Kondensatorplatten 15 eines (nicht dargestellten # Hochfrequenzgenerators neu aufgeheizt und dadurch je nach Art der Kunststoffe eine durchgehende Erweichung oder aus- härtung bewirkt, 1 )ie Faserstoffbahn erfährt dann anschließend noch eine letzte Pressung und Verdiechtung durch die Rollen 16. After exiting the device, the fibrous web is between the capacitor plates 15 of a high-frequency generator (not shown) heated and thus a continuous softening depending on the type of plastic or from- curing causes 1) the fibrous web then experiences one last pressing and thickening by the rollers 16.
Bei der Ausführungsform nach Abb. 2 sind gleichfalls wieder Rollen 17 und 18 mit endlosen Stahlbändern 19 und 21 angeordnet, welche den Transport der Faserstoffbahn durch die Vorrichtung bewirken. Die beiderseits der Stahlkörper angeorodneten Druckkörper 21 und 22 schließen nach der Bandoberfläche zu je einen Heizraum 23 und 24 ein, in welchen bei C die Heizgase eingeführt und liei 1) abgeführt werden. In den Heizräumen liegen ferner <lie 1)ruckrollen 25, welche den Preßdruck auf die perforiertell Stahlhänder übertragen. Vor und hinter dell Druckkörpern ist je eine Spule 26 und 27 angebracht, welche das Stahlband umschließt und die von einem Wechselstrom hoher Frequenz durchflossen wird. Hierbei wird das Stahlband druch die im Stahl entstehenden Verluste aufgeheizt. In the embodiment according to Fig. 2 there are also rollers again 17 and 18 arranged with endless steel belts 19 and 21, which transport the Effect fibrous web through the device. The ones arranged on both sides of the steel body Pressure bodies 21 and 22 each close a heating space 23 after the belt surface and 24 a, in which at C the heating gases are introduced and let 1) be discharged. In the boiler rooms there are also 1) jerk rollers 25, which apply the pressure the perforated steel hand transfer. In front of and behind dell pressure hulls is ever a coil 26 and 27 attached, which encloses the steel band and of a Alternating current of high frequency is flowed through. Here the steel belt is thru the losses occurring in the steel are heated up.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED885A DE833252C (en) | 1950-01-31 | 1950-01-31 | Device for the continuous treatment of foils or sheets made of plastics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED885A DE833252C (en) | 1950-01-31 | 1950-01-31 | Device for the continuous treatment of foils or sheets made of plastics |
Publications (1)
Publication Number | Publication Date |
---|---|
DE833252C true DE833252C (en) | 1952-03-06 |
Family
ID=7028956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED885A Expired DE833252C (en) | 1950-01-31 | 1950-01-31 | Device for the continuous treatment of foils or sheets made of plastics |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE833252C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1153883B (en) * | 1953-10-09 | 1963-09-05 | Sued West Chemie Gmbh | Device for the formation of multilayer fiber boards |
EP2540475A4 (en) * | 2010-02-22 | 2015-06-03 | Lg Hausys Ltd | High frequency induction heating double steel belt press apparatus |
-
1950
- 1950-01-31 DE DED885A patent/DE833252C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1153883B (en) * | 1953-10-09 | 1963-09-05 | Sued West Chemie Gmbh | Device for the formation of multilayer fiber boards |
EP2540475A4 (en) * | 2010-02-22 | 2015-06-03 | Lg Hausys Ltd | High frequency induction heating double steel belt press apparatus |
US9210741B2 (en) | 2010-02-22 | 2015-12-08 | Lg Hausys, Ltd. | High frequency induction heating double steel belt press apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2722356C2 (en) | Method and device for the continuous production of chipboard, fiber or the like. plates | |
DE60119504T2 (en) | METHOD AND DEVICE FOR PRODUCING A COMPOSITE PROFILE OF ORGANIC, THERMOPLASTIC, REINFORCED PLASTIC PLASTIC | |
DE103396T1 (en) | MICROWAVE APPLICATION DEVICE FOR A CONTINUOUS PRESS. | |
DE833252C (en) | Device for the continuous treatment of foils or sheets made of plastics | |
DD250290A5 (en) | METHOD FOR CONTINUOUS MANUFACTURE OF CHIP, FIBER AND SIMILAR PLATES | |
DE4443763A1 (en) | Continuously operating press for the production of wood-based panels | |
DE1504210A1 (en) | Method and device for the production of fabric tubes or hoses impregnated with thermosetting resin | |
DE2331864A1 (en) | Hot sealing superimposed sheets or textile layers - using narrow hot air jet combined with suction | |
DE1961444A1 (en) | Device for hot printing of fiber material | |
DE3743933A1 (en) | Method and apparatus for heating a continuously operating hotplaten press | |
DE1126127B (en) | Device for heat treatment of thermoplastic plastic webs | |
DE709242C (en) | Device for double-sided vulcanization of plate-shaped objects made of rubber or rubber-like compounds or for processing thermoplastic compounds in a continuous operation | |
DE2249189A1 (en) | Thin polyamide plate continuous prodn. - between endless belts with heater for anionic polymn. of lactam, resulting in bubble free prods. | |
DD227644A1 (en) | DEVICE FOR ABBEER USE ON PLASTIC CYLINDERS OF PLASTIC MACHINERY | |
DE2425638A1 (en) | Consolidated particle boards prodn. - using low pressure preheating to improve thermal efficiency | |
DE2360141C3 (en) | Device for the continuous production of an endless chipboard web, fibreboard web or the like | |
DE69307886T2 (en) | METHOD AND DEVICE FOR HEAT TREATING A FIBER PRODUCT, THE NOZZLES EXTEND IN THE DIRECTION OF THE MACHINE | |
DE10319752B3 (en) | Garment industry assembly to combine two layers of cloth with hotmelt bonding agent | |
DE2206710C3 (en) | Endless steel belt for a rotary press | |
DE4208262A1 (en) | Continuous band press for chipboard - has direct steam-vacuum supply to material through wire mesh band held on process bars supplied by a circulating manifold system | |
DE2421421C2 (en) | Method and device for the production of synthetic leather | |
DE10217767A1 (en) | Adhesive coating, is applied while a material is passing through an irradiation zone where the adhesive is thermally activated by microwaves | |
DE843898C (en) | Method and device for the continuous coating of steel strips with rubber | |
DE8702448U1 (en) | Device for applying stickers to fabrics or textiles | |
DE2065933A1 (en) | DEVICE FOR THE PRODUCTION OF FIBERS FROM THERMOPLASTIC PLASTIC |