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    PRE-STRETCHING ROLLER, METHOD OF MANUFACTURING THE PRE-STRETCHING ROLLER AND WINDING APPARATUS
    2.
    发明申请
    PRE-STRETCHING ROLLER, METHOD OF MANUFACTURING THE PRE-STRETCHING ROLLER AND WINDING APPARATUS 审中-公开

    公开(公告)号：WO2023007351A1

    公开(公告)日：2023-02-02

    申请号：PCT/IB2022/056842

    申请日：2022-07-25

    申请人： ROBOPAC S.P.A.

    发明人： MORRI, Marco

    IPC分类号： F16C13/00 ,  F16C19/06 ,  B21C23/00 ,  B21C23/10 ,  B65G39/02

    摘要： A pre-stretching roller (1) of an unwinding apparatus associable to a wrapping machine, comprising a main body (2) elongated and manufactured by an extrusion process of a metal alloy; the main body includes a first tubular element (3) having a cylindrical shape and defining an external cylindrical wall (3a) suitable for interacting with a film; a second tubular element (4) internal to the first tubular element and having a first end (5) provided with a first seat (7) suitable for receiving and coupling with a driving shaft of driving means of the unwinding apparatus and an opposite second end (6) provided with a second seat (8) suitable for receiving and coupling with a supporting pin for fixing the pre-stretching roller to the unwinding apparatus; a plurality of longitudinal vanes (10) which connect the first tubular element to the second tubular element; the second tubular element comprises a plurality of longitudinal ribs (16), each of them being connected to a respective longitudinal vane.

    HIGH-STRENGTH 6XXX EXTRUSION ALLOYS
    4.
    发明申请
    HIGH-STRENGTH 6XXX EXTRUSION ALLOYS 审中-公开

    公开(公告)号：WO2021133792A1

    公开(公告)日：2021-07-01

    申请号：PCT/US2020/066590

    申请日：2020-12-22

    申请人： ALCOA USA CORP.

    发明人： YAN, Xinyan ,  CARON, Francis

    IPC分类号： B21C23/00 ,  B22D21/00 ,  C22C21/02

    摘要： Some embodiments of the present disclosure relate to a 6xxx aluminum alloy having: silicon (Si) in an amount of 0.70 wt% to 1.1 wt % based on a total weight of the 6xxx aluminum alloy; magnesium (Mg) in an amount of 0.75 wt% to 1.15 wt% based on the total weight of the 6xxx aluminum alloy; a weight ratio of Mg to Si in the 6xxx aluminum alloy from 0.68:1.0 to 1.65:1.0; and copper (Cu) in an amount of 0.30 wt% to 0.8 wt% based on the total weight of the 6xxx aluminum alloy. Some embodiments of the present disclosure further relate to a method including steps of: casting an exemplary 6xxx aluminum alloy, homogenizing the exemplary 6xxx aluminum alloy; extruding the exemplary 6xxx aluminum alloy; and aging the 6xxx aluminum alloy.

    紧凑型闭式加压液压系统型材挤压机
    5.
    发明申请
    紧凑型闭式加压液压系统型材挤压机 审中-公开

    公开(公告)号：WO2021000428A1

    公开(公告)日：2021-01-07

    申请号：PCT/CN2019/106555

    申请日：2019-09-19

    申请人： 梁润明

    发明人： 梁润明

    IPC分类号： B21C23/00

    摘要： 一种紧凑型闭式加压液压系统型材挤压机，包括固定底座（1）和固定底座（1）上的挤压部分（2）、供油部分（3）和主电柜（4），所述的供油部分（3）包括有加压油缸（31）、油路板（33）、冷却机构（34）、电机泵组（7）、液压回路和充液阀（5）；所述加压油缸（31）由储油缸筒（311）和增压缸（312）组成；所述油路板（33）为挤压机各油缸的控制组件；所述冷却机构（34）用于冷却液压油；所述电机泵组（7）用于挤压机工作时产生液压油高压系统压力；所述液压回路包括有泵吸油管（61）、输油管一（62）、输油管二（63）、工作油管一（321）、工作油管二（322）和回油管（35）；所述的充液阀（5）设在主油缸（221）上与储油缸筒（311）相通；该紧凑型闭式加压液压系统型材挤压机使用时液压油用量少，且工作时液压油温度可得以有效控制，有效延长液压油的使用期限，也节约了设备的使用成本。

    アルミニウム合金およびアルミニウム合金押出材の製造方法
    6.
    发明申请
    アルミニウム合金およびアルミニウム合金押出材の製造方法 审中-公开

    公开(公告)号：WO2020179307A1

    公开(公告)日：2020-09-10

    申请号：PCT/JP2020/003724

    申请日：2020-01-31

    申请人： 昭和電工株式会社

    发明人： 横山　哲也 ,  水野　鉄浩 ,  北原　正典 ,  奥野　克樹 ,  奥野　好成

    IPC分类号： B21C1/00 ,  B21C23/00 ,  B21C23/08 ,  C22C21/00 ,  G03G5/10 ,  C22F1/00 ,  C22F1/04

    摘要： 高平滑な外表面を形成することができ、かつ製造コストを抑えることができるアルミニウム合金、アルミニウム合金押出材の製造方法、感光ドラム基体の製造方法、アルミニウム合金押出材および感光ドラム基体を提供する。　Ｓｉ：０．０６０～０．０８０質量％、Ｆｅ：０．１０～０．７０質量％、Ｃｕ：０．０５０～０．２０質量％、Ｍｎ：１．０～１．５質量％を含有し、残部がＡｌ及び不可避不純物からなる組成を有するアルミニウム合金製ビレット１を押出加工することでアルミニウム合金押出材を製造する。そして、製造された感光ドラム基体用アルミニウム合金押出管３を引抜加工もしくはしごき加工することで、感光ドラム基体を製造する。

    EXTRUSION OF METAL MATERIAL USING A DUMMY BLOCK HAVING A CURVED SURFACE
    8.
    发明申请
    EXTRUSION OF METAL MATERIAL USING A DUMMY BLOCK HAVING A CURVED SURFACE 审中-公开

    公开(公告)号：WO2020102806A1

    公开(公告)日：2020-05-22

    申请号：PCT/US2019/061999

    申请日：2019-11-18

    申请人： THE REGENTS OF THE UNIVERSITY OF MICHIGAN

    发明人： COOPER, Daniel Ross

    IPC分类号： B21C23/00 ,  B21C26/00 ,  B21C33/00 ,  B23K13/01 ,  B23K20/00 ,  B23K20/12 ,  B23K20/22 ,  B29C48/00

    摘要： Various embodiments provide for an extrusion device with a dummy block having a curved surface configured to change the shape and length of charge welds between extrudates originating from different billets in order to reduce the amount of scrap and waste material. In an embodiment, the dummy block, which forces the billet of material through the die, can have a concave front surface such that the material, as it is extruded through the die, forms a solid-state weld that is shorter than a flat faced dummy block. In another embodiment, the dummy block can have a convex front surface such that the material, as it is extruded through the die, forms a solid-state weld that is longer than a weld due to a flat faced dummy block. In other embodiments, billets with non-flat ends can also be used.

    EXTRUDED ALUMINUM SPIRIT LEVELS AND METHOD OF MANUFACTURING THEREFOR
    9.
    发明申请
    EXTRUDED ALUMINUM SPIRIT LEVELS AND METHOD OF MANUFACTURING THEREFOR 审中-公开

    公开(公告)号：WO2020016880A1

    公开(公告)日：2020-01-23

    申请号：PCT/IL2019/050728

    申请日：2019-07-01

    申请人： KAPRO INDUSTRIES LTD

    发明人： BEN JOSEF, Rafi ,  PALATSHE, Yossi

    IPC分类号： G01C9/28 ,  B21C23/00

    摘要： A spirit level including a setting surface and a horizontal bubble vial wherein the spirit level is constituted by an extruded aluminum slice cut by an extrusion cutter from aluminum extruded through an extrusion die in a direction of extrusion, the extruded aluminum slice having an opposite parallel pair of cut surfaces perpendicular to the direction of extrusion and a uniform thickness peripheral surface between the opposite parallel pair of cut surfaces, the peripheral surface defining the spirit level's length and height in a front elevation view of the spirit level for setting a generally horizontal work surface relative to the horizontal and the spirit level's depth in the direction of extrusion.