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    BONDING AGENT FOR USE IN 3D PRINTING PROCESS AND PREPARATION METHOD AND APPLICATION THEREOF
    2.
    发明公开
    BONDING AGENT FOR USE IN 3D PRINTING PROCESS AND PREPARATION METHOD AND APPLICATION THEREOF 审中-公开

    公开(公告)号：EP3646965A1

    公开(公告)日：2020-05-06

    申请号：EP18824476.8

    申请日：2018-06-25

    申请人： Jinan Shengquan Group Share Holding Co., Ltd

    发明人： ZHU, Jianxun ,  BAI, Shilong ,  ZHOU, Guodong

    IPC分类号： B22C1/20

    摘要： A bonding agent for use in a 3D printing process comprises the following components: 15-60 parts by weight of a furan resin, 42-68 parts by weight of furfuryl alcohol, 1-12 parts by weight of an accelerator, and 0.1-5 parts by weight of an additive, wherein the said furan resin is prepared by the reaction of phenolic resin and furfuryl alcohol. Also disclosed are a preparation method and application of a bonding agent for use in a 3D printing process. The above bonding agent for use in a 3D printing process has an extremely low viscosity at room temperature, and its viscosity is lower than 10 mPa.s at 20 °C, thus meeting the resin requirements of the print head in 3D printing equipment, such that the print head is not easily blocked, thereby facilitating the maintenance of the machine. The bonding agent has good performance for wrapping sand particles in the process of sand applying, and the printed sand mold has higher mechanical strength and faster curing speed, thus facilitating sand dropping and cleaning and improving the operational performance.

    VERFAHREN ZUR HERSTELLUNG VON FEUERFESTEN KOMPOSITPARTIKELN UND VON SPEISERELEMENTEN FÜR DIE GIEßEREIINDUSTRIE, ENTSPRECHENDE SPEISERELEMENTE UND VERWENDUNGEN
    3.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON FEUERFESTEN KOMPOSITPARTIKELN UND VON SPEISERELEMENTEN FÜR DIE GIEßEREIINDUSTRIE, ENTSPRECHENDE SPEISERELEMENTE UND VERWENDUNGEN 审中-公开

    公开(公告)号：EP3383565A1

    公开(公告)日：2018-10-10

    申请号：EP16804802.3

    申请日：2016-12-01

    申请人： HÜTTENES-ALBERTUS Chemische Werke Gesellschaft mit beschränkter Haftung

    发明人： LEHMANN, Sandra ,  RIEMANN, Klaus ,  ZIMMER, Nils ,  LIEBER, Hermann ,  HÜBERT, Jürgen

    IPC分类号： B22C1/20

    CPC分类号： B22C1/2273 ,  B22C1/02 ,  B22C1/20 ,  B22C9/088 ,  B22D7/10

    摘要： Disclosed is a method for producing a feeder element for the foundry industry, comprising the following steps: (a) producing composite particles which have a grain size of less than 2 mm, determined by means of screening, in a matrix encapsulation method, comprising the following steps: (a1) producing drops of a suspension from at least the following start materials: (i) one or more refractory substances chosen from the group consisting of refractory solids and precursors for refractory solids, (ii) one or more density-reducing substances chosen from the group consisting of light-weight fillers which have a respective bulk density in the range of 10 to 350 g/l, blowing agents and pyrolyzable fillers, (iii) a solidifiable fluid as continuous phase; (a2) solidifying the solidifiable fluid so that the drops harden to form hardened drops, and the refractory substance(s) and the density-reducing substance(s) are encapsulated in the hardening continuous phase; (a3) treating the hardened drops so that said composite particles result; (b) mixing the composite particles produced in step (a) with a binding agent and, optionally, further components to form a feeder mass; (c) shaping and curing of the feeder mass to form a feeder element. In addition, disclosed is the use of a matrix encapsulation method for producing composite particles and the use of sealed composite particles and a method for producing refractory composite particles and the use of same.

    Green ceramic casting mold system and refractory casting mold obtainable thereof
    5.
    发明公开
    Green ceramic casting mold system and refractory casting mold obtainable thereof 有权
    GrüneKeramikgussform und daducherhältlichefeuerfeste Gussform

    公开(公告)号：EP2359959A1

    公开(公告)日：2011-08-24

    申请号：EP10013175.4

    申请日：1999-11-19

    申请人： Rolls-Royce Corporation

    发明人： Frasier, Donal J. ,  Schlienger, M. Eric ,  Kush, Matthew

    IPC分类号： B22D7/04 ,  B22D27/13 ,  B29C41/04 ,  B29C41/08 ,  G03F7/004 ,  C30B11/14 ,  B22D27/04 ,  G03F7/00 ,  B29C67/00 ,  B22C1/20

    CPC分类号： G03F7/0047 ,  B29C64/40 ,  B33Y10/00 ,  B33Y30/00 ,  C30B11/002 ,  C30B11/14 ,  C30B29/52 ,  G03F7/0037

    摘要： A green ceramic casting mold system comprises a shell having a thin outer wall member with a substantially smooth as formed inner surface defining a complex shaped volume adapted for receiving a molten metallic material. The thin outer wall member is a layered structure of ceramic particles bound together by a polymer binder. A core is positioned within the volume and adapted to create at least one passage within the component formed from the molten metallic material received in the volume. The core is a layered structure of ceramic particles bound together by an organic polymer binder.

    摘要翻译： 绿色陶瓷铸造模具系统包括具有薄壁外壁构件的壳体，该外壁构件具有基本平滑的形成的内表面，其限定适于接收熔融金属材料的复杂形状体积。 薄的外壁构件是通过聚合物粘合剂结合在一起的陶瓷颗粒的层状结构。 芯体定位在体积内并且适于在由容纳在容积中的熔融金属材料形成的部件内产生至少一个通道。 核心是通过有机聚合物粘合剂结合在一起的陶瓷颗粒的层状结构。

    FOUNDRY RESINS
    8.
    发明授权
    FOUNDRY RESINS 失效
    铸造树脂。

    公开(公告)号：EP0408574B1

    公开(公告)日：1995-06-07

    申请号：EP89902603.3

    申请日：1989-02-14

    申请人： KURPLE, Kenneth R.

    发明人： KURPLE, Kenneth R.

    IPC分类号： B22C1/20

    CPC分类号： C08G18/6492 ,  B22C1/162 ,  B22C1/2273 ,  B22C1/2286 ,  B22C1/2293

    摘要： A process for making sand cores or molds is disclosed; the completed cores and molds as well as a binder for holding the sand particles together. The resin binder is used in the process and in the finished product comprising lignin dissolved in a suitable solvent reacted on or cured with an isocyanate material. Curing can be accomplished by the use of an amine along with a catalyst if desired. A polyether polyol may be integrated with the lignin to vary the physical characteristics of the binder.