摘要:
Dreidimensionales Siebdruckverfahren zur Herstellung eines Grünteils aus Druckmaterial für ein pulvermetallurgisches Bauteil, wobei das Druckmaterial einen Anteil aus Pulver, insbesondere Metallpulver oder Keramikpulver, und Binder aufweist oder aus diesen Materialien besteht, dadurch gekennzeichnet, dass eine Siebdruckmaske eine Siebdruckstruktur mit Öffnungen zum Durchdrücken des Druckmaterials aufweist, wobei die Öffnungen teilweise wellenförmig ausgebildet sind, so dass das Grünteil mindestens teilweise eine dreidimensionale wellenförmige Struktur und / oder wellenförmige Ränder aufweist.
摘要:
Disclosed is a printing screen assembly, a frame for a printing screen and method for their construction. The printing screen assembly has a frame (310) with an elongate first frame member (320, 320a) and an elongate second frame member (320, 320b) parallel to the first frame member (320, 320a) and in fixed relation thereto; and a corresponding cantilevered first and second tensioning arrangement (326) extending from each frame member (320) along a length thereof. A predictable pre-tensioning force may be applied by resiliently deflecting the tensioning arrangements (326) into contact with an abutment arrangement (328) and securing a printing screen to an attachment portion (326b) of the first tensioning arrangement (326a), while the first tensioning arrangement (326) is in contact with the first abutment arrangement (326a). The frame may be formed by preselecting the resilience of the tensioning arrangement (326) so as to preselect the tension applied when tensioning a printing screen in use.
摘要:
Examples are disclosed that relate to screen printing liquid metal materials. One example provides a method to deposit a metal pattern (16) onto a substrate (12). The method includes placing a textile over the substrate, the textile having a plurality of pores wettable by a liquid metal. The method further includes forcing the liquid metal through the pores of the textile and onto the substrate, and separating the substrate and textile.
摘要:
Methods for using a hollow, rotating stencil roll to deposit flowable dry powder particles onto a moving substrate and to attach the particles to the substrate.
摘要:
A stencil system (200; 300; 700; 801; 1110) for providing an electrically conductive material on a substrate having a substrate surface is described. The stencil system includes a first stencil area (210; 310; 710; 810; 1113) adapted for substantially overlapping with the substrate surface and having openings (246; 346; 746; 846; 1146) for providing the electrically conductive material therethrough on the substrate (850; 1130), the openings comprising a first outermost opening (247) and a second outermost opening (248); and a second stencil area (220; 320; 720; 820; 1112) extending outside the first stencil area and having at least one opening (245; 345; 745; 845; 1145). Further, a printing system including a stencil system and a method for printing an electrically conductive material on a substrate are described.