PORE REMOVAL FROM SCREEN DEVICES TO INCREASE FLOW UNIFORMITY

    公开(公告)号:US20230256679A1

    公开(公告)日:2023-08-17

    申请号:US18013463

    申请日:2020-07-14

    IPC分类号: B29C64/393 D21F3/00

    CPC分类号: B29C64/393 D21F3/00 B33Y50/02

    摘要: According to examples, an apparatus may include a processor that may access information about a screen device having pores, in which the screen device is to be employed to filter liquid from a slurry composed of the liquid and material elements to form a part from the material elements. The processor may also access information about a main body, in which the main body is to support the screen device during formation of the part and has a plurality of openings that are larger than the pores in the screen device. The processor may identify, based on relative locations of the pores and the openings, pores that are to be removed from the screen device to increase uniformity of liquid flow through the pores across the screen device and may modify the accessed information about the screen device to remove the identified pores from the screen device.

    Fiber web machine sleeve roll belt
    43.
    发明授权

    公开(公告)号:US11725344B2

    公开(公告)日:2023-08-15

    申请号:US17325019

    申请日:2021-05-19

    IPC分类号: D21F3/02 D21F1/40

    CPC分类号: D21F3/0227 D21F1/40

    摘要: A belt (10) for a sleeve roll forms a closed loop and has an inner surface (11), an outer surface (12), an elastic body (15), and a reinforcing structure (30). The reinforcing structure has first yarns (31a) arranged to a first direction (D1) of the belt, and second yarns (32a) arranged to a second direction (D2) of the belt which is parallel or substantially parallel to a travel direction of the belt, and/or perpendicular or substantially perpendicular to the first direction (D1). The belt (10) is configured to stretch elastically more in the second direction (D2) than in the first direction (D1) so that it will return to its original length after forces stretching the belt have been removed. This invention further relates to an arrangement including a belt and a sleeve roll. This invention further relates to a use of a belt.

    Workpiece of Yankee cylinder section and process for manufacturing a Yankee cylinder

    公开(公告)号:US11718959B2

    公开(公告)日:2023-08-08

    申请号:US17787173

    申请日:2020-11-05

    申请人: ANDRITZ CHINA LTD

    IPC分类号: D21F5/02 B23K26/24

    CPC分类号: D21F5/021 B23K26/24

    摘要: The present invention relates to a process for manufacturing a Yankee cylinder. The process comprises welding the first reinforcement flanges of two workpieces of Yankee cylinder section from inside of the cylinder case, preheating and welding the two workpieces of Yankee cylinder section from outside of the cylinder case, and then removing the first, second reinforcement flanges, radial inner end area of the weld and their surrounding material in the workpieces of the Yankee cylinder section, so that the joint of the two workpieces of Yankee cylinder section is machined to meet the final dimension requirements for the Yankee cylinder inner grooves. The present invention is also related to a workpiece of Yankee cylinder section used in the said process.

    Shoe press belt
    50.
    发明授权

    公开(公告)号:US11668048B2

    公开(公告)日:2023-06-06

    申请号:US16958471

    申请日:2018-12-27

    发明人: Takahisa Hikida

    摘要: A shoe press belt includes a polyurethane in which a reinforcement base member is embedded, the polyurethane being in one piece with the reinforcement base member. The polyurethane constituting at least an outer circumferential surface of the shoe press belt includes, as an urethane prepolymer component, an aliphatic polycarbonatediol component and an aromatic diisocyanate component, and includes, as a curing agent component, an aliphatic diol component having a carbon number of less than or equal to 6 and an aromatic diol component having two hydroxyethoxy groups. A content of the aromatic diol component with respect to the aliphatic diol component and the aromatic diol component is more than or equal to 10 mass % and less than or equal to 50 mass %. Accordingly, there is provided a shoe press belt suppressed in generation and development of a crack.