Abstract:
Blade-coating mechanism (1) for applying spreading materials such as substances of different viscosity, coating materials, lacquers, adhesives, pastes, or similar on a coating surface (6) by means of a blade (5) pressed against the surface by magnetic force, a profile element (2) and a bearing (4) coupled with the latter. To prevent tilting and bending and to permit precise automatic adjustment of the blade pressure on the coating surface (6), the bearing (4) is arranged as a swivel bearing (3) on the profile element (2) in such a way that it can be freely tilted from a position parallel to the coating surface about at least one swivel axis (45) perpendicular to its longitudinal axis (20).
Abstract:
A blade shaped tool belonging to that type of tools which comprises doctor blades and coater blades, which have a strip-shaped body of steel which is cold-rolled, hardened and tempered to a hardness between 500 and 700 HV. At least the two wide sides of the body are covered by a hard surface layer (6a,6b) provided through Plasma Immersion Ion Implantation of hard reaction products of type carbides, nitrides and/or oxides. The tool has in comparison with conventional tools of corresponding steel grades an improved bending resistance and in the working edge portion of the tool also a significantly higher resistance to wear.
Abstract:
Die Erfindung betrifft ein Rakelelement (1) zur Dosierung und/oder Egalisierung eines Auftragsmediums, beispielsweise Streichfarbe, auf einen laufenden Untergrund (2), wobei der Untergrund (2) bei direktem Auftrag des Auftragsmediums die Oberfläche einer laufenden Papier-, Karton- oder andere Faserstoffbahn und bei indirektem Auftrag die Oberfläche eines Übertragselementes ist, das das Auftragsmedium an die laufende Faserstoffbahn abgibt, wobei das Rakelelement (1) als zylindrischer Rakelstab ausgebildet ist, der in seiner Länge im Wesentlichen der Breite des Untergrundes (2) entspricht. Erfindungsgemäß ist vorgesehen, dass der Rakelstab einen Kern (3) mit tragender Funktion, eine Ummantelung (4) mit einer gegen den laufenden Untergrund (2) anstellbaren Oberfläche (5) sowie wenigstens eine parallel zur Rakelstabachse ausgearbeitete Ausnehmung (6) mit jeweils einer Rakelkante (7) in der Ummantelung (4) aufweist, wobei die betreffende Rakelkante (7) in einer Betriebsposition (II) gegen die den laufenden Untergrund (2) angestellt ist und in einer Startposition (I) anstelle dieser Rakelkante (7) ein beliebiger Bereich der Oberfläche (5) gegen den Untergrund (2) angestellt ist.
Abstract:
Eine Rakel (100, 200,..., 700), insbesondere zum Abrakeln von Druckfarbe von einer Oberfläche einer Druckform, umfassend einen flachen und länglichen Grundkörper (110, 210,..., 710) mit einem in einer longitudinalen Richtung ausgebildeten Arbeitskantenbereich ( 130, 230,..., 730), wobei der Arbeitskantenbereich ( 130, 230,.... 730) mit wenigstens einer ersten Beschichtung (150, 250,..., 750) auf der Basis einer Nickel-Phosphor-Legierung überzogen ist, zeichnet sich dadurch aus, dass die erste Beschichtung ( 150, 250,..., 750) wenigstens eine Zusatzkomponente (160, 360, 460, 660, 760, 761 ) zur Verbesserung des Verschleissverhaltens der Rakel enthält.
Abstract:
The invention relates to a doctor blade for a fiber web machine. The doctor blade (10) includes a blade section (11) and a fastening detent sect ion (12). In the cross-sectional plane, the blade section (11) is asymmetric while the fastening detent section (12) is substantially symmetric so that the doctor blade (10) can be installed in two opposite positions for providing two different functions. The invention also relates to a doctor arrangement in a fiber web machine.
Abstract:
Beleimungsvorrichtung mit wenigstens einer Leimwalze (4), die um ihre Leimwalzenachse umlaufend antreibbar ist, mit wenigstens einem Leirnauftragund Verteilerelement (3) zur Erzeugung eines primären Leimauftrags auf einer ümfangsf lache der Leimwalze (4), sowie mit wenigstens einem Leimschaber (15), der mit einem Schaberabschnitt (16) mit einer durch wenigstens ein Federelement (17) erzeugten Anpresskraft gegen einen sich in der Richtung der Walzenachse erstreckenden und in Leimwalzendrehrichtung auf die Leimabgabe folgenden ümfangsbereich der Leimwalze (4) angepresst anliegt.
Abstract:
The invention relates to a squeegee, particularly for screen printing, comprising at least one longitudinally extended profiled strip (5) made of a flexible material. The squeegee comprises, in the area of the flexible profiled strip, a squeegee edge (6), which can be placed against a printing screen and which extends in a longitudinal direction, and comprises a lateral edge (9) that extends transversal to said squeegee edge. A reinforcing layer (7, 8) is provided, which is joined to the flexible profiled strip over a large area and which increases the rigidity of the squeegee. The aim of the invention is to create a squeegee which can be advantageously used and which is to be subsequently worked. To this end, the reinforcement (7) is provided with fibers, whereby the fibers consist, at least in part, of carbon fibers and/or synthetic fibers and/or of fibers that have a modulus of elasticity of = 100 GPa and/or a breaking elongation of = 3 %. The squeegee can have an electrical conductivity that is high enough to prevent the occurrence of unwanted spatters during the printing process. A number of reinforcing layers can be provided, and the rear side of the squeegee can be reinforced by a glass-fiber fleece.
Abstract:
The invention relates to a method for surface treatment of a doctor blade element made of a steel alloy, especially austenitic steel, for coating devices. According to the invention, the doctor blade element is subjected to a gas-plasma assisted treatment wherein the gas plasma contains nitrogen and carbon compounds and at least one noble gas, preferably argon. During the treatment, foreign metal foreign ions, especially titanium and molybdenum, are implanted directly in the steel surface of the doctor blade element.
Abstract:
The invention relates to a doctor or coater blade (1) of steel, having a nickel coating comprising abrasion resistant particles, said coating being constituted by an electrolytic nickel layer comprising abrasion resistant particles. The coating preferably comprises at least two electrolytic nickel layers having different composition, and may be formed differently in different sections of the blade. The invention also relates to a continuous process for electrolytic nickel coating in at least one electrolytic cell holding an electrolyte liquid comprising at least one nickel salt, and in at least one of these cells also comprising abrasion resistant particles.
Abstract:
The invention concerns a composite blade (1) comprising a substrate strip (2) providing the blade with its main mechanical properties, an interface coating (3), bonded to one surface of said substrate, and adapted on the other surface, in particular, in shape, for sliding contact with a medium relatively mobile with respect to said blade, said interface coating (3) extending longitudinally along said blade direction, and transversely from at least one longitudinal edge (3a) and at least over one (2a) of the strip surfaces. In combination, the interface coating (3) has, in optical microscopy scale, a laminated structure comprising several elementary layers not less than 15 mu m thick, coherently bound to one another, and at least two elementary layers each comprise for the most part by weight a crystalline or amorphous ceramic phase of magneli type, comprising at least a titanium compound statistically corresponding to any one of the following sub-stoichiometric formulae, namely: Ti Oy, with 1.8 ¦ y
Abstract translation:本发明涉及一种复合刀片(1),其包括提供其主要机械性质的刀片的衬底条(2),界面涂层(3),其结合到所述衬底的一个表面上,并且特别地适用于另一个表面, 在与所述刀片相对移动的介质滑动接触的情况下,所述界面涂层(3)沿着所述刀片方向纵向延伸,并且横向于至少一个纵向边缘(3a)和至少一个(2a)的纵向边缘 带状表面。 结合起来,界面涂层(3)在光学显微镜尺度上具有层叠结构,该叠层结构包括不少于15μm厚的几个元素层,彼此相互粘合,并且至少两个基本层各自大部分由 重量为magneli型的结晶或无定形陶瓷相,其至少包含统计学上对应于以下亚化学计量式中的任何一种的钛化合物,即:Ti Oy,1.8 | y <2; Ti Nz,0.5 | z <1; Ti Cx为0.5 | x <1。