EP1372942A1 - Presse continue, destinee en particulier a la fabrication de produits a parties jointes et adhesif synthetique associe - Google Patents

Presse continue, destinee en particulier a la fabrication de produits a parties jointes et adhesif synthetique associe

Info

Publication number
EP1372942A1
EP1372942A1 EP01954244A EP01954244A EP1372942A1 EP 1372942 A1 EP1372942 A1 EP 1372942A1 EP 01954244 A EP01954244 A EP 01954244A EP 01954244 A EP01954244 A EP 01954244A EP 1372942 A1 EP1372942 A1 EP 1372942A1
Authority
EP
European Patent Office
Prior art keywords
products
press according
adhesive
conveyor belts
plate
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.)
Withdrawn
Application number
EP01954244A
Other languages
German (de)
English (en)
Inventor
Giovanni Gino Cattelan
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.)
Cg Di Cattelan Gianni & C SNC
Original Assignee
Cg Di Cattelan Gianni & C SNC
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
Priority claimed from IT2001VI000070A external-priority patent/ITVI20010070A1/it
Priority claimed from IT2001VI000071A external-priority patent/ITVI20010071A1/it
Application filed by Cg Di Cattelan Gianni & C SNC filed Critical Cg Di Cattelan Gianni & C SNC
Publication of EP1372942A1 publication Critical patent/EP1372942A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • B30B5/06—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band
    • B30B5/065—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band co-operating with another endless band using anti-friction means for the pressing band
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J131/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
    • C09J131/02—Homopolymers or copolymers of esters of monocarboxylic acids
    • C09J131/04—Homopolymers or copolymers of vinyl acetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
    • C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
    • C08L2666/14—Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers

Definitions

  • the present invention relates to a continuous press, particularly for manufacturing products with joined parts.
  • the press according to the invention can be advantageously employed in industrial processes e.g. for the continuous manufacturing of wood or cardboard panels, of wood chip boards, plastic laminates, plywood panels, rubber ribbons, cut panels of wood and other semi-finished articles.
  • a continuous press of the above mentioned type accomplishes the continuous manufacturing of the products by means of hot setting synthetic adhesives and through the combined pressure-heat action.
  • the invention further relates to a synthetic hot setting adhesive for the coupling of wooden manufactured articles with a continuous press of the above mentioned type.
  • the efficiency of the product heating influences mainly the efficiency of the press insofar as it changes the advancement speed of the conveyor belts.
  • the same mechanism for exerting the pressure on the products to be joined not only influences the quality of the finished products but also the operating speed of the press.
  • the compression action is combined with a heating action adapted to dry the adhesive previously applied to the products.
  • the heat is transmitted to the products by the rollers themselves and with extremely low efficiency because the heat transmission substantially takes place through generating lines of the rollers.
  • US-A-4,466,857 discloses an embodiment of press which provide a supporting plate acting upon a plurality of juxtaposed pressure rollers and having holes for circulating a heating fluid for heating the plates and the products to be treated. The same considerations laid down for the machines with pressure rollers also apply to this latter solution.
  • the movable electrode is formed by single elements spaced from each other adapted to move with a product so as to compress it, by means of a complex and expensive operating mechanism.
  • Such a solution further allows to treat exclusively non-continuos articles and to operate simultaneously only on a limited number of articles.
  • a satisfactory operation of the press mainly depends on the adhesive used.
  • such mixtures are uniformly spread as a viscous fluid over one or both the surfaces to be joined and are further subjected to a compression and heating phase to evaporate the solvent and to cure the adhesive.
  • the type and quantity of adhesive, the compression time, the gluing temperature depend on different factors such as the materials to be joined, the woody essence employed, the conditions of the surfaces, the moisture of the wood.
  • Pressure Time it is the time during which a pressure is exerted on the surfaces to be joined, expressed in seconds per millimetre of the adhesive film thickness up to the middle line of the attachment depth.
  • Pot Life it is the maximum time interval, at the definite temperature and moisture conditions, that may pass between mixing the components of an adhesive and application of the adhesive mixture.
  • Open Time it is the maximum time interval at a definite temperature and moisture conditions existing from the spreading thereof and the starting of the adhesive curing.
  • Application Weight it is the weight mass of adhesive including the solvent per surface unit to be glued.
  • Wood Moisture it is the percentual fraction w/w of water present in the wooden material.
  • Specific Power it is the power required to dry the adhesive by means of electromagnetic RF waves, expressed in W per gram of adhesive including the diluent.
  • the heating is accomplished by means of pressure surfaces heated with heating media such as steam, overheated vapour, diatherm oil.
  • adhesive containing polar components such as water
  • adhesive containing polar components such as water
  • the quantity of glue or adhesive needed to obtain a predetermined mechanical resistance is lower than that employed with an indirect heating, for example with presses embodying heating plates.
  • the most frequently used frequency is 27.1 2 MHz and accordingly in correspondence of such value must be optimised the glues and the adhesives to obtain assemblies with high mechanical characteristics, as well as press machines with high velocity and production rate.
  • the known adhesive are normally deposited on both surfaces to be joined, are substantially chosen from the groups of resins base on polyvinyl esters, urea resins, melamine-formaldehyde resins and polyurethanes. Among these groups, the most diffused and common are polyvinyl esters compounds and urea resins.
  • the polyvinyl adhesives are compounds comprising resins based on polyvinyl acetate dispersed in an aqueous medium.
  • Table 1 indicates the operating conditions generally applied for polyvinyl adhesives. TABLE 1
  • the urea formaldehyde resin adhesive are compounds comprising resins based on precondensed urea-formaldehyde at solid state, generally dry powder, or dispersed in an aqueous medium, generally added with hardener or acid catalyst.
  • a first drawback resides in that in order to obtain high mechanical features of the joined product the attaching pressure must be comprised between 0.1 and 0.9 MPa, according to the types of adhesive employed, the materials to join and temperature.
  • the pressure force exerted by the press on the products may involve excessive stress on the components of the press itself.
  • a further drawback consists in that the mechanical resistance of the glued product highly depends on the quantity of the adhesive employed.
  • the main object of the present invention is to eliminate the drawbacks of the foregoing state of the art by providing a continuous press, particularly for products made of attachable parts, capable to improve the distribution of the pressure on the same products.
  • Another object of the present invention is to provide a press capable to work in a continuous manner on products of different dimensions and materials within a satisfactory range of dimensional tolerances.
  • Another object of the present invention is to provide a press with a high production efficiency.
  • Another object of the present invention is to conceive a press with a simple structure and a high reliability.
  • Yet another object of the present invention is to provide a synthetic heat curable adhesive for joining wooden assemblies, particularly applying electromagnetic waves in the RF range.
  • a further object of the present invention is to conceive a heat curable adhesive allowing the use of low quantities of adhesive in comparison with those needed for conventional adhesives.
  • Another object is to provide a heat curable adhesive that can be efficiently employed for different wood materials.
  • Yet another object of the present invention is to provide a heat curable adhesive for gluing wooden assemblies by means of electromagnetic waves with reduced radiating power in the RF range.
  • a continuous press for products with attachable parts which comprises a supporting structure laying on the ground, a pair of motorised annular conveyor belts mounted on said supporting structure with external surfaces facing each other along at least one common length to define therebetween a passage for guiding the products previously treated with heat curable adhesive, upon advancement thereof from an inlet door to an outlet door along an advancement direction, compression means mounted on said supporting structure, acting on said conveyor belts substantially stationary with respect to the supporting structure and adapted to exert through said conveyor belts a pressure on the products advancing along said direction through said passage, heating means operatively associated with said passage to dry the products advancing along said direction, characterised in that said compression means comprise at least one first plate carrying on a first active face a plurality of first shaped teeth adapted to slide on the internal surface of at least one first conveyor belt of said pair so as to compress the products advancing through said passage.
  • FIG. 1 shows a lateral view of the continuous press according to the invention with several removed parts to better see;
  • FIG. 2 shows a lateral enlarged view of a detail of Fig .1 concerning a first configuration of the compression plates
  • FIG. 3 shows a lateral enlarged view of a detail of Fig.1 concerning a second configuration of the compression plates
  • FIG. 4 shows a detail of the compression plates of the press in enlarged scale.
  • Press 1 enables to firmly attach parts of assemblies previously treated with heat curable adhesive by means of the combined heat and pressure action.
  • the press is particularly suitable for use in industrial process for assembling plates of wood and other materials, multi-layer products, boxes, cases and other assemblies with attachable parts, which products may be introduced in the press in a continuous manner (e.g. products assemblies constituted by ribbon-like products unwound from reels for coupling over each other within the press) or in discontinuous manner with products of the same kind but separated from each other.
  • a continuous manner e.g. products assemblies constituted by ribbon-like products unwound from reels for coupling over each other within the press
  • discontinuous manner with products of the same kind but separated from each other.
  • press 1 In use, if press 1 is continuously fed it is capable to treat the products in line exerting on them a suitable pressure while drying them, which press 1 can be advantageously inserted in an automatic production line having upstream and downstream thereof robotised machines for assembling semi-finished products charged and discharged by means of suitable manipulators.
  • the products to treat with press 1 are previously spread with a heat curable adhesive that may have a special composition in order to improve the efficiency of the press, as it will be clarified hereinafter.
  • press 1 conventionally comprises a support structure 2 laying on the ground.
  • the structure 2 supports a pair of conveyor belts 3, 4; the first upper conveyor belt 3 is wound in annular fashion on a first idle roller 5 and on a first motorised roller 6; a second lower conveyor belt 4 is wound in an annular fashion on a second idle roller 7 and on a second motorised roller 8.
  • the external surfaces 3', 4' of the two conveyor belts 3, 4 are arranged and parallel facing each other for at least one portion 9, in such a manner to define a passage 10 through which products M advance after being previously treated with heat curable adhesive.
  • the products M are driven from the two conveyor belts 3, 4 from an inlet door 1 1 and an outlet door 1 2 along an advancement direction A through the passage 1 0.
  • This passage has an height d substantially equal to that of products M to be joined.
  • Compression means 1 3 are arranged on the support structure 2 to act on the conveyor belts 3, 4 thereby exerting a compression force on products M advancing along the passage 10; heating means 14 are operatively associated with passage 10 to dry the products M passing through it.
  • the compression means 14 comprise a first plate 1 5 carrying on a first active face 1 6 a plurality of first shaped teeth 1 7 adapted to shift on internal surface 3" of first conveyor belt 3 to urge the products passing through passage 1 0 between the external surfaces 3', 4' of conveyor belts 3, 4 delimiting the passage.
  • the heating means 14 are mounted on the first plate 1 5 in such a manner to allow the press 1 to exert at the same time on products M a compression and heating action finalised to optimise the curing of the adhesive and consequently the adhesion of the different parts of products M to be joined. Thanks to such an arrangement, it is possible to achieve a high quality of the attachment and thereby of the products finally obtained.
  • heating means 14 may be constituted by a wave generator in the RF range comprising a plurality of emitting electrodes 30 located in suitable seats 31 provided above the first plate 1 5.
  • the RF radiation is preferably effected at frequency of 27, 1 2 Hz in accordance with the applicable regulations.
  • the RF technology allows to selectively heat the water molecules present in the adhesive, causing their evaporation and consequently the drying of the adhesive itself.
  • the drying of water diluted adhesives take place by direct transfer of the electromagnetic energy inside the adhesive layers with high efficiency a no dispersion in the outside environment and with no remarkable increase in the temperature of the products M.
  • the first plate 1 5 is preferably made of a material transparent to RF radiation to enable the waves emitted by electrodes 30 to reach the adhesive applied to products M; the first plate 1 5 further has a low friction factor to allow teeth 1 7 to easily slide on the internal surface 3" of the first conveyor belt 3 with no heat generation in spite of the remarkable pressure acting on products M.
  • the low friction factor is obtained by virtue not only of the material employed but also thanks to the particular shape of teeth 1 7 which will be better described hereinafter.
  • the compression force P exerted by teeth 1 7 on products M via conveyor belt 3 is countered by the reaction force exerted by a second plate 1 8 having a second active face 1 9 slidingly interacting with the internal surface 4" of the second conveyor belt 4.
  • the second plate 1 8 is formed by a metallic profile having its active face 1 9 substantially planar.
  • the second plate 1 8 is provided with a plurality of second shaped teeth 20 on its second active face 19.
  • the second plate 1 8 is provided with a metallic profile 1 8' placed against the active face 1 9.
  • teeth 1 7, 20 to compress products M within passage 1 0 between the two conveyor belts 3, 4 allows to even the pressure on the entire contact surface of product M.
  • teeth 1 7, 20 are made of a material having a low friction factor and a low thermal expansion factor, and further allows the same teeth to elastically deform to compensate the dimensional tolerances of products M or the clearances and misalignments of the whole compression system.
  • the metallic profile 18 or 1 8' present in both the embodiments shown, allows on one side to guide the electromagnetic waves generated by the emitting electrodes 30 and on the other side to dissipate the heat transferred from products M to the second plate 20 via the second conveyor belt 4.
  • teeth 1 7, 20 may be optimised in accordance with the dimensions and types of products M to be treated.
  • the shape depicted in Fig. 4 has shown in practice to be particularly suitable for a large number of products.
  • the teeth have a height H ranging from 5 to 25 mm, preferably equal to 20 mm, a longitudinal width L measured along the advancement direction A of the conveyor belts comprised between 2 and 6 mm, and preferably equal to 4 mm, a depth F measured along a direction substantially transverse to advancement direction A of the conveyor belts also comprised between 2 and 6 mm and a tooth pitch comprised between 3 and 10 mm, preferably equal to 8 mm in longitudinal direction and 3 mm in a transverse direction.
  • the teeth are plate shaped to extend parallel along the transverse direction and the longitudinal advancement direction A of the conveyor belts, for spaced lengths comprised between 20 and 60 mm and preferably of 50 mm.
  • teeth 1 7, 20 are inclined towards the advancement direction of the conveyor belts so as to define an inclination angle ⁇ relative to the advancement direction ranging between 50° and 70° and preferably equal to 60° .
  • the pressure on products M and/or height d of passage 10 formed by conveyor belts 3, 4 is adjusted by means of actuator capable to raise the first plate 1 5 and/or the first conveyor belt 3.
  • the first actuators means 40 are mechanically coupled to the supporting structure of the first conveyor belt 3 and advantageously constituted by an adjustment device of the worm-and-pinion type driven by electric motors 41 and second actuators means 42 mechanically coupled to the first plate 1 5 and consisting of hydraulic cylinders.
  • the hot setting adhesive mentioned above comprises a water dispersion with pH acid of resins containing polyvinyl acetate and pre-condensed amino-formaldehyde.
  • the adhesive spread over products M may quickly dry under irradiation with electromagnetic waves generated by RF electrodes 30. Further, such drying enables to operate with a reduced compression of the plates with advantageous effect with a higher advancement speed of products M and consequently with a higher production efficiency of the machine 1 .
  • the amino-formaldehyde resins are urea-formaldehyde resins, melamine-formaldehyde resins or combinations of same.
  • the amino-formaldehyde precondensates are comprised between 2% and 10% in weight of dispersion.
  • the precondensate weight percentage of pre-condensed is comprised from 5% to 8%.
  • the water dispersion with acid pH of resins based on polyvinyl acetate has at least 45% solids content.
  • amino-formaldehyde precondensates in powder contains a curing and/or hardening catalyst.
  • the dispersion of resins containing polyvinyl acetate may include plasticizers and/or solvents.
  • the mixing temperature of the adhesive may range from 10° C to 25 °C and is preferably comprised between 1 2°C and 1 5° C.
  • the adhesive After application of the adhesive on one or both the parts to be joined, the adhesive is subjected to heating through radiation with RF.
  • the specific power of the electromagnetic field in RF may be equal to about 70 W/g of adhesive.
  • the adhesion pressure necessary to obtain high mechanical resistance is comprised between 0, 1 and 0,56 MPa with a pressure time equal to about Example 1
  • An amount of about 4 Kg of powder urea-formaldehyde precondensate SYNTEKO 1 360TM sold by Akzo Nobel ® containing acid catalyst are added to about 46 Kg of about 50% emulsion of solids dispersed in a water matrix with a acid pH of resins containing polyvinyl-acetate 6-230 Emmevil RH-4TM traded by Emmebi International Industries Chemical.
  • the properties and features of the adhesive obtained after homogenisation effected at ambient temperature comprise between 1 2° C and 1 5 °C are indicated in Table 3.
  • the advancement speed of product M in the press machine achieves 0.25 m/s as compared with 0.08 m/s maximum achieved with heretofore known adhesive.
  • the wood moisture is the most critical parameter. Moisture values higher than those indicated above may cause a decay in mechanical performances in the attachment joints and higher adhesion times with consequent heavy reduction of productivity.
  • composition of the adhesive as well as its substantially constant dosage of 1 00 g/m 2 , does not change in accordance with a different types of wooden material; the spreading of adhesive on only one side permits to reduce the change in total thickness between the surfaces to be joined thereby producing a higher steadiness of the resistance and quality properties of product M.
  • the use of the above indicated adhesive may therefore provide numerous advantages, among other a remarkable reduction of the joining pressure (strength), increased productivity, safety, flexibility of the press, reduction of the adhesive quantity and of the requested radiating power.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

L'invention concerne une presse continue, destinée en particulier à attacher des produits (M) avec des parties couplées, comprenant une structure support (2) posée sur le sol, une paire de tapis de convoyage annulaires (3, 4) motorisés, montés sur la structure support (2), dont les surfaces externes (3, 4) sont en face l'une de l'autre, selon au moins une longueur commune (9), de façon à définir un passage (10) permettant de guider des produits (M), traités préalablement avec un adhésif thermodurcissable, lors de leur avancement depuis une porte d'entrée (11) jusqu'à une porte de sortie (12) selon une direction d'avancement (A). Cette presse continue comprend aussi des moyens de compression (13), montés sur la structure support (2), agissant de façon opératoire sur les tapis de convoyage (3, 4) destinés à exercer une pression sur les produits (M) avançant dans la direction (A) à l'intérieur du passage (10), et des moyens de chauffage (14) associés au passage (10) destinés à sécher les produits (M). Les moyens de compression (13) comprennent au moins une première plaque (15) portant sur une première face active (16) plusieurs premières dents formées (17) coulissant sur la surface interne (3'') d'au moins un des tapis de convoyage (3, 4) afin de comprimer les produits (M). Un adhésif de synthèse, pour assemblages de bois, particulièrement adapté à être utilisé avec la présente presse est constitué d'une dispersion de résines à base d'acétate de polyvinyle dans l'eau avec un pH acide, et d'un condensé partiel en poudre de résines aminiques à base de formaldéhyde ajouté à la dispersion, dans lequel ces résines aminiques sont du type urée-formaldéhyde, mélamine-formaldéhyde ou des combinaisons de ces types, le condensé partiel contribuant pour 2 % à 10 % en poids de la dispersion.
EP01954244A 2001-03-21 2001-07-31 Presse continue, destinee en particulier a la fabrication de produits a parties jointes et adhesif synthetique associe Withdrawn EP1372942A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
ITVI20010070 2001-03-21
ITVI20010071 2001-03-21
IT2001VI000070A ITVI20010070A1 (it) 2001-03-21 2001-03-21 Macchina pressatrice in continuo in particolare per incollare prodotti con parti accoppiate
IT2001VI000071A ITVI20010071A1 (it) 2001-03-21 2001-03-21 Adesivo sintetico per incollaggio di manufatti lignei
PCT/IB2001/001369 WO2002074525A1 (fr) 2001-03-21 2001-07-31 Presse continue, destinee en particulier a la fabrication de produits a parties jointes et adhesif synthetique associe

Publications (1)

Publication Number Publication Date
EP1372942A1 true EP1372942A1 (fr) 2004-01-02

Family

ID=26332898

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01954244A Withdrawn EP1372942A1 (fr) 2001-03-21 2001-07-31 Presse continue, destinee en particulier a la fabrication de produits a parties jointes et adhesif synthetique associe

Country Status (2)

Country Link
EP (1) EP1372942A1 (fr)
WO (1) WO2002074525A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7468161B2 (en) 2002-04-15 2008-12-23 Ventana Medical Systems, Inc. Automated high volume slide processing system
DK1890127T3 (da) 2002-04-15 2013-09-23 Ventana Med Syst Inc Automatiseret objektglasfarvningssystem med høj kapacitet
US11249095B2 (en) 2002-04-15 2022-02-15 Ventana Medical Systems, Inc. Automated high volume slide processing system
US8097575B2 (en) 2004-12-02 2012-01-17 Harris Research, Inc. Composition and method for cleaning and neutralizing a surface
KR101548407B1 (ko) 2008-11-12 2015-08-28 벤타나 메디컬 시스템즈, 인코포레이티드 시료 운반 슬라이드를 가열하기 위한 방법 및 장치
DE102013101512B4 (de) * 2013-02-15 2014-09-18 Wemhöner Surface Technologies GmbH & Co. KG Doppelbandheizpresse
CN115256568A (zh) * 2022-08-17 2022-11-01 崇左广林迪芬新材料科技有限公司 一种连续平压胶合板生产线导热油系统

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US4025272A (en) * 1975-07-07 1977-05-24 Southampton Manufacturing Company, Inc. Apparatus for continuously manufacturing boards
US4064299A (en) * 1975-10-02 1977-12-20 Formac International, Inc. Anti-friction composite with metal backing of rigid prongs and lubricant overlay
DE2722348B1 (de) * 1977-05-17 1978-11-02 Baehre & Greten Verfahren und Vorrichtung zum Erwaermen eines Vlieses
DE3348485C2 (de) * 1983-07-15 1995-06-08 Held Kurt Doppelbandpresse zur kontinuierlichen Herstellung von Laminaten
DE4205746C2 (de) * 1991-03-18 1994-01-05 Meyer Herbert Gmbh Co Kg Vorrichtung zum Verkleben flächenförmiger Werkstücke
CA2152009C (fr) * 1994-10-12 1998-05-05 Gordon Granville Shofner Presse a placage de bois lamelle en continu utilisant un chauffage par pertes dielectriques
SE9500801D0 (sv) * 1995-03-06 1995-03-06 Stenlund Maskiner Ab Förfarande för upphettning av lim samt anordning för genomförande av förfarandet
DE19858125A1 (de) * 1998-12-16 2000-06-21 Dieffenbacher Gmbh Maschf Kontinuierlich arbeitende Presse und Verfahren zur Herstellung von Holzwerkstoffplatten und Kunststoffplatten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02074525A1 *

Also Published As

Publication number Publication date
WO2002074525A1 (fr) 2002-09-26

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