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DE1936234A1 - Coating chipboard surface finishing plates with - polytetrafluoro ethylene to reduce clogging of meshing of - Google Patents

Coating chipboard surface finishing plates with - polytetrafluoro ethylene to reduce clogging of meshing of

Info

Publication number
DE1936234A1
DE1936234A1 DE19691936234 DE1936234A DE1936234A1 DE 1936234 A1 DE1936234 A1 DE 1936234A1 DE 19691936234 DE19691936234 DE 19691936234 DE 1936234 A DE1936234 A DE 1936234A DE 1936234 A1 DE1936234 A1 DE 1936234A1
Authority
DE
Germany
Prior art keywords
meshing
surface finishing
finishing plates
sheets
polytetrafluoro ethylene
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
Application number
DE19691936234
Other languages
German (de)
Inventor
Hanselmayer Dipl-Ing Richard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WILHELM HOLZHAEUER ATEX
Original Assignee
WILHELM HOLZHAEUER ATEX
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 WILHELM HOLZHAEUER ATEX filed Critical WILHELM HOLZHAEUER ATEX
Publication of DE1936234A1 publication Critical patent/DE1936234A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27NMANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08Moulding or pressing
    • B27N3/20Moulding or pressing characterised by using platen-presses

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Abstract

Clogging of mesh on the surface of finishing plates facing chipboards is reduced or prevented by coating the surface with polytetrafluoroethylene.

Description

Satinierbleche zur Herstellung von Holzfaserplatten, Spanplatten und dergl. Satin finishing sheets for the production of fibreboard, chipboard and the like

Die Neuerung bezieht sich auf Satinierbleche zur Herstellung von Holzfaserplatten, Spanplatten oder dergl.The innovation relates to satin-finished sheets for the production of fibreboard, Chipboard or the like.

Solche Satinierbleche verwendet man bei der Fabrikation der besagten Spanplatten, Holzfaserhartplatten oder dergl., um eine glatte Oberflächenausbildung dieser Platten zu erhalten. Zwischen einem solchen Satinierblech und einem Entwässerungssieb oder zwischen äe zwei solchen Satinierblechen läßt man den mit den erforderlichen Zusatzstoffen angemachten Holzfaserwerkstoff unter Druck und Hitze aushärten. Dabei besteht jedoch der Mangel, daß Fasern oder Spanteile an den Satinierblechen haften und relativ schnell zu fest haftender Verkrustung führen, die infolge der dauernden Hitzeeinwirkung verkohlen. Damit ist dann der Zweck dieser Bleche, den herzustellenden Platten eine glatte Oberfläche zu geben, verfehlt.Such satin-finished sheets are used in the manufacture of the aforementioned Chipboard, wood fiber hardboard or the like. To achieve a smooth surface finish to get these plates. Between such a satin sheet and a drainage sieve or between the two such satin-finish sheets, the one with the required ones is left Cure wood fiber material mixed with additives under pressure and heat. Included however, there is a defect that fibers or chips adhere to the satin-finish sheets and lead relatively quickly to firmly adhering encrustation, which as a result of the permanent Charring from exposure to heat. The purpose of these sheets is then the one to be produced Giving plates a smooth surface is a failure.

Um diesen Mangel abzuhelfen, hat man bereits sogenannte Trennmittel eingesetzt, Diese verzögern zwar die genannt« Verkrustungen der Bleche, in gewissen Zeitabständen ist aber trotzdem der zeitraubende und kostspielige Ausbau und die Reinigung der Bleche erforderlich. Außerdem wirkten sich die Trennmittel bei; einer nachträglichen Oberflächenveredlung der hergestellten Platten, wie z.B. bei einer Lackierung, meist sehr störend aus oder machen sie sogar unmöglich.So-called release agents are already available to remedy this deficiency used, These delay the so-called «incrustations of the metal sheets, in certain However, time intervals is still the time consuming and costly Removal and cleaning of the sheets required. The release agents also had an effect at; a subsequent surface refinement of the panels produced, e.g. when painting, usually very annoying or even impossible.

Die Erfindung beseitigt diese Mängel dadurch, dab die batinierbleche mit hitzebeståndigem Kunststoff, insbesondere mit Polytetrafluorätbylen beschichtet sind.The invention eliminates these deficiencies by the fact that the batinierbleche with heat-resistant plastic, especially coated with polytetrafluoroethylene are.

Es hat sich gezeigt, daß an den auf diese Weise beschichteten Satinierplatten keine Fasern oder Spant eile haften und somit keinerlei Verkrustungen auftreten. Uberraschend und nicht vorher sehbar ist hierbei vor allem die gute Trennwirkung zwischen Satinierblecn und Holzwerkstoff, wodurch die Erfindung den bis her geubten Verfahren weit überlegen ist. ebenfalls überraschend ist der Vorteil, daß sich die unter Verwendung der erfindungsgemäß beschichteten Satinierbleche gepreßten Platten anschließend leichter und besser lackieren oder polieren lassen. Mit der Erfindung werden somit neben der guten frennwirkung folgende beachtliche technische Vorteile erzielt: 1. Sehr lange, zeitlich praktisch nicht begrenzte Verwendbarkeit der Bleche.It has been shown that the satin finish plates coated in this way no fibers or ribs adhere and thus no incrustations occur. Above all, the good release effect is surprising and cannot be foreseen in advance between Satinierblecn and wood material, whereby the invention the practiced up to now Procedure is far superior. also surprising is the advantage that the plates pressed using the satinizing sheets coated according to the invention then have it painted or polished more easily and better. With the invention In addition to the good branding effect, the following considerable technical advantages are thus achieved Achieved: 1. Very long, practically unlimited use of the sheets.

2. Wegfall des bisherigen häufigen, aufwendigen Auswechselns der Bleche und Reinigung der Bleche.2. Elimination of the previous frequent, time-consuming replacement of the metal sheets and cleaning the sheets.

3. Einsparung der bisher erforderlichen Trennmittel und Reinigungschemikalien.3. Saving of the previously required release agents and cleaning chemicals.

4. Verbesserung der nachträglichen Veredelung der Oberflächen der erhaltenen Holzfaserplatten o.dgl. Dieser ebenfalls überraschende Vorteil i.t von besonderer Bedeutung.4. Improvement of the subsequent finishing of the surfaces of the obtained fibreboard or the like. This also surprising advantage i.t of special meaning.

Nachfolgend wird ein Ausfütirungsbeispiel der Neuerung anhand der Zeichnung näher erläutert.The following is an example of the innovation based on the Drawing explained in more detail.

Fig. 1 zeigt ein neuerllngsgemäßes Satinierblech im Schnitt nach Linie II-II in Fig. 2 Fig. 2 ist eine Ansicht von unten auf die beschichtete Seite des Bleches nach Fig. 1.1 shows a new satinizing sheet in a section along the line II-II in Figure 2 Figure 2 is a bottom view of the coated side of the Sheet according to Fig. 1.

Fig. 3 zeigt erfindungsgemäße Satinierbleche im Einsatz mit einer gestrichelt schematisch dargestellten Presse.Fig. 3 shows satinizing sheets according to the invention in use with a dashed line schematically shown press.

Das Blech 1 ist auf seiner einen Seite mit einer Schicht Polytetrafluoräthylen 2 versehen. Es weist seitlich Griffansätze 3 zur Erleichterung der Handhabung auf.The sheet 1 is on one side with a layer of polytetrafluoroethylene 2 provided. It has handle lugs 3 on the side to facilitate handling.

Wie in Fig. 3 dargestellt, werden die Formlinge 4 zwischen je zwei heizbaren Griffplatten 5 in der insgesamt mit 6 bezeichneten Griffe behandelt. Zwischen der Oberseite jedes Formlinges und der oberen Heizplatte ist je ein Satinierblech 1 eingesetzt. Dabei ist die Unterseite, jedenfalls die dem Holzwerkstoff bzw. Holzfaserformling zugekehrte Seite des Satìnier bleches gemäß der Neuerung mit-einer Schicht aus Polytetrafluoräthylen 2 beschichtet.As shown in Fig. 3, the moldings 4 are between two heated grip plates 5 treated in the handles designated as a whole by 6. Between the top of each molding and the upper heating plate are each a satin finish 1 used. The underside is here, at least that of the wood-based material or wood fiber molding facing side of the satin sheet according to the innovation with a layer of polytetrafluoroethylene 2 coated.

Hierdurch ergeben sich insbesondere die oben aufgezeigten Vorteile, vor allen Dingen eine uberraschende Trennwirkung bei guter Oberflächenbeschaffenheit.This results in the advantages outlined above in particular, Above all, a surprising release effect with a good surface finish.

Claims (1)

Patentanspruch Claim batinierblech zur Herstellung von Holzfaserplatten, Spanplatten oder dergl., dadurch gekennzeichnet, daß das Satinierblech mit hitzebeständigem Kunststoff, insbesondere mit Polytetrafluoräthylen Deschichtet ist.batining sheet for the production of fibreboard, chipboard or the like., characterized in that the satin-finish sheet with heat-resistant plastic, is coated in particular with polytetrafluoroethylene.
DE19691936234 1968-08-01 1969-07-16 Coating chipboard surface finishing plates with - polytetrafluoro ethylene to reduce clogging of meshing of Pending DE1936234A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT750368 1968-08-01

Publications (1)

Publication Number Publication Date
DE1936234A1 true DE1936234A1 (en) 1970-02-05

Family

ID=3596665

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19696928182 Expired DE6928182U (en) 1968-08-01 1969-07-16 SATIN SHEETS FOR THE PRODUCTION OF WOOD FIBER BOARDS, CHIPBOARDS AND THE LIKE.
DE19691936234 Pending DE1936234A1 (en) 1968-08-01 1969-07-16 Coating chipboard surface finishing plates with - polytetrafluoro ethylene to reduce clogging of meshing of

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19696928182 Expired DE6928182U (en) 1968-08-01 1969-07-16 SATIN SHEETS FOR THE PRODUCTION OF WOOD FIBER BOARDS, CHIPBOARDS AND THE LIKE.

Country Status (1)

Country Link
DE (2) DE6928182U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911958A1 (en) * 1989-04-12 1990-10-18 Eduard Hueck Metallwalz Und Pr Press sheet - for press board mfr. coated bilaterally with specified plastic
DE4118814A1 (en) * 1990-06-08 1991-12-19 Hitachi Ltd Bonding multilayer circuit boards - applying heated dies on press after boards are accurately aligned

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911958A1 (en) * 1989-04-12 1990-10-18 Eduard Hueck Metallwalz Und Pr Press sheet - for press board mfr. coated bilaterally with specified plastic
DE4118814A1 (en) * 1990-06-08 1991-12-19 Hitachi Ltd Bonding multilayer circuit boards - applying heated dies on press after boards are accurately aligned

Also Published As

Publication number Publication date
DE6928182U (en) 1969-11-20

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