摘要:
In a papermaking machine, the drying section includes a vacuum based system which serves to guide the web and supporting felt (15) from a first drying cylinder (11) to a transfer vacuum roller (10), which has perforations (13) through which a vacuum is communicated into the interior of the roller 10 from of an external suction box (14). The suction box (14) includes lengthwise extending sealing strips (28, 29) located adjacent and bounding the free circumferential surface of the transfer roller (10), which is not overlapped by the felt of the drying section. The sealing strips extend from the suction box 14 to the roller mantel (10a) of the roller 10. These strips are further designed in the style of a doctor blade and are flexibly mounted on the suction box (14) so that they are flexible and biased against the roller 10 by spring action. They extend approximately tangentially to the surface of the roller mantel (10a), contacting it gently.
摘要:
In an air lock for continuous introduction into and/or removal of workpieces from spaces (1,4) separated atmospherically, the individual substrates (3,13) are transported through a transfer channel (24). At least one lock chamber (7a-7m) serving to accommodate the substrates (3,13) is arranged movably in the transfer channel (24). During the substrate transport in the transfer channel (24), the lock chamber (7a-7m) is atmospherically separated both from the exterior (1) having normal pressure and from the coating chamber (4). The air lock (2) includes a carrousel lock which has a carrousel housing (24) and a lock chamber wheel (10). On the periphery in the lock chamber wheel (10) individual lock chambers (7a-7m) are provided, in which the workpieces (3,13) to be brought into the chamber to be loaded (4) are inserted freely accessible on the normal pressure side. By turning the lock chamber wheel (10), the substrates (3,13) in the lock chambers (7a-7m) are transported from the coating station (A) to the transfer station (B) into the treatment chamber (4) diametrically opposite the normal pressure side. In the transfer station (B) the substrates (3,13) are removed from the transfer channels (7a-7m) by means of a transfer device (17′) and are available for further treatment in the treatment chamber (4). The treatment chamber (4) includes, for instance, of a vacuum-coating chamber in which the workpieces (3,13) as the substrates to be coated are coated by a vacuum-supported coating method.
摘要:
A coating material to be evaporated in an evaporator cell disposed in a vacuum chamber is fed in the form of a wire to the evaporator cell in accordance with the depth of the molten bath, by a wire transport including a motor-driven shaft or roller and a counter-roller mounted on a movably journaled lever which in turn is movable via an electromagnetic actuator against the force of a spring means. A wire feed tube is arranged between the wire transport which draws fusible wire from a remote supply and feeds it to the evaporator boat where the wire is evaporated for coating a band-type substrate. The feed tube has a straight section which receives the wire concentrically from the transport and a gooseneck section toward said evaporator boat which twice deflects the wire to provide three points of contact with the inner wall of the tube, thus accurately positioning the wire while preventing clogging of the outlet orifice.
摘要:
An evaporation crucible is described. The evaporation crucible (100; 300; 400; 500) includes: an electrically conductive body (120) and a cover (150; 550); the body having a first electrical connection (162) and a second electrical connection (164) for applying a heating current through the body, the body includes a chamber (130) providing a melting-evaporation area, the chamber including a chamber bottom and a chamber wall, wherein the cover forms an enclosure with the chamber; a feeding opening (134; 430) for feeding a material; and a distributor orifice (170; 571, 572) providing a vapor outlet of the enclosure.
摘要:
In an air lock for continuous introduction into and/or removal of workpieces from spaces (1, 4) separated atmospherically, the individual substrates (3, 13) are transported through a transfer channel (24). At least one lock chamber (7a-7m) serving to accommodate the substrates (3, 13) is arranged movably in the transfer channel (24). During the substrate transport in the transfer channel (24), the lock chamber (7a-7m) is atmospherically separated both from the exterior (1) having normal pressure and from the coating chamber (4). The air lock (2) includes a carrousel lock which has a carrousel housing (24) and a lock chamber wheel (10). On the periphery in the lock chamber wheel (10) individual lock chambers (7a-7m) are provided, in which the workpieces (3, 13) to be brought into the chamber to be loaded (4) are inserted freely accessible on the normal pressure side. By turning the lock chamber wheel (10), the substrates (3, 13) in the lock chambers (7a-7m) are transported from the coating station [sic; loading station] (A) to the transfer station (B) into the treatment chamber (4) diametrically opposite the normal pressure side. In the transfer station (B) the substrates (3, 13) are removed from the transfer channels (7a-7m) by means of a transfer device (17′) and are available for further treatment in the treatment chamber (4).
摘要:
A stationary support device for the drainage wire screen of a fiber web forming section. The cover ledge over which the drainage screen passes has a front edge which the screen passes and then the drainage surface beneath the wire screen diverges from the wire screen in the wire screen advancing direction. The cover ledge is of hard material. The front part of the cover ledge is supported by a support at a rigid pivot joint. The rearward part of the cover ledge is supported by wedge surface connections for permitting adjustment of the tilt orientation of the cover ledge with respect to the drainage wire. Leaf type clamping springs disposed between the cover ledge and the support, disposed rearwardly of the front joint and disposed forwardly of the wedge surface connections. The clamping leaf springs being connected to the cover ledge by tie rods at the center of the spring and to the support by tie rods at the ends of the springs. In an alternate embodiment, the clamping element is an expandable pressure hose connected at opposite sides by tie rods to the cover ledge and to the support. A ball and socket joint enables the slide disk and the wedge shaped angle inclination surfaces to seat together.
摘要:
The invention concerns a process and a circular knitting machine for the production of knit goods with combed-in fibers, in which an amount of fibers synchronous with the needle cylinder rotatory speed is fed to a teasing cylinder rotating at high speed, transferred by the latter to the comb-in zone, and taken from the needles in the comb-in zone without contacting the teasing cylinder. To prevent the development of areas overfilled with fibers or short of fibers in the finished knit goods on account of the contact-less fiber feed, during or before abrupt reductions or increases in the rotatory speed of the needle cylinder, at least temporarily smaller or larger amounts of fibers are fed to the comb-in zone than corresponds to the synchronous amount of fibers.
摘要:
An electrode arrangement for the plasma-aided coating of a substrate (3) with a layer of material comprising at least one first and a second material component and for the production of a plasma discharge, more especially an arc discharge (35), having an anode arrangement (5), which provides the first material component at an anode material surface (13) for evaporation, and a cathode arrangement (7), which provides the second material component at a cathode material surface (25). The electrode arrangement is characterized in that the cathode material surface (25) is constituted by an evaporation-active part (27) supporting the plasma discharge (35) and an evaporation-inactive part (41) not supporting the plasma discharge. Preferably, a motion-producing means (49) is provided for moving the evaporation-inactive part (41) over the cathode material surface (25) in order to reduce deposit of material due to he first material component on the cathode material surface (25).
摘要:
In order to independently influence the dewatering performance of a wet forming section of a paper machine as well as the quality of a web produced by the machine, a paper machine head box is mounted on a swiveling device adapted to move a nozzle of the head box around a periphery of a forming cylinder. Two continuous-loop forming wires wrap about the forming cylinder and pulp is discharged through the nozzle into a gap formed by the two wires. A method of operation of the wet forming section includes the step of swiveling both the head box nozzle and an inlet roll (upon which one of the wires is wrapped) around the forming cylinder in a circular arc.
摘要:
An evaporator boat for an apparatus for coating substrates in a vacuum coating chamber consists of a shallow, trough-shaped piece of an electrically conductive material, the boat being heated by direct passage of current through it. The evaporator boat has an elongate hexagonal plan, the configuration of the recess within the boat for containing the material to be evaporated corresponding approximately to that of the boat. Lengthwise opposed ends of the evaporator boat are provided each with an approximately rectangular, perpendicular flat area. The flat areas together form two directly opposed parallel clamping surfaces of the evaporator boat so that when the evaporator boat is heated, two active evaporating zones form on both sides of the point of contact between the delivered wire and the evaporator boat.