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    DEVICE FOR DIE CASTING MATERIAL HAVING HIGH MELTING TEMPERATURE
    1.
    发明专利
    DEVICE FOR DIE CASTING MATERIAL HAVING HIGH MELTING TEMPERATURE 失效

    公开(公告)号：JP2000197957A

    公开(公告)日：2000-07-18

    申请号：JP36051899

    申请日：1999-12-20

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： SCHIRRA JOHN J ,  ANDERSON DAVID WILLIAM ,  MARCIN JOHN JOSEPH JR ,  PRIVITZER EBERHART ,  SAMUELSON JEFFERY WILLIAM ,  TU JOHN SIUMING

    IPC: B22D17/20

    Abstract: PROBLEM TO BE SOLVED: To execute die casting a member having high m.p. in a good condition by selecting the ratio of the inside diameter and the outside diameter of a sleeve so as to minimize the thermal deformation of the sleeve in the case of pouring molten material into the shot sleeve. SOLUTION: The cylindrical sleeve has the inside diameter Ri and the outside diameter Ro in the cold state, and as the molten material is poured into a low portion, the low portion is expanded more than the portion at the upper side and deformed as shown with the broken line to form an elliptic shape shown with a major axis Ma and a minor axis Mm. In such a case, the ratio (Ro/Ri) of the outside diameter and the inside diameter is desirable to be at least 1.5. In this way, the molten material having suitable volume, (particularly, in the case of filling only a small portion of the molten material), is formed as bow shape in the longitudinal direction or formed as the elliptic shape, and it can be sufficiently minimized that the sleeve is thermally deformed and the machine can be prevented from jamming. further, the inside diameter is desirable to be at least 1.5 inch.

    HYBRID METAL FAN BLADE
    3.
    发明申请
    HYBRID METAL FAN BLADE 审中-公开
    混合金属风扇叶片

    公开(公告)号：WO2014196987A3

    公开(公告)日：2015-02-26

    申请号：PCT/US2013046819

    申请日：2013-06-20

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： DEAL JAMES L ,  SCHIRRA JOHN J ,  DROZDENKO LEE ,  GRAVES WILLIAM R ,  HANSEN JAMES O ,  WEISSE MICHAEL A ,  WATSON THOMAS J

    IPC: F01D5/14 ,  F01D5/28 ,  F04D29/38

    CPC classification number: F01D5/288 ,  F01D5/147 ,  F04D29/023 ,  F04D29/324 ,  F05D2220/36 ,  F05D2230/23 ,  F05D2240/303 ,  F05D2300/121 ,  F05D2300/124 ,  F05D2300/174 ,  Y02T50/672

    Abstract: A fan blade comprises an airfoil portion and a sheath portion. The sheath portion has a sheath head section, a first sheath flank, and a second sheath flank, both flanks extending chordwise from the forward sheath section. The sheath portion is bonded to the airfoil portion such that the sheath head section covers the forward airfoil edge, defining a blade leading edge. The first sheath flank covers a portion of the first airfoil surface proximate the airfoil forward edge, jointly defining a blade suction surface. The second sheath flank covers a portion of the second airfoil surface proximate the airfoil forward edge, jointly defining a blade pressure surface. The first metallic material is an aluminum alloy containing between about 0.5 wt% and about 3.0 wt% of lithium.

    Abstract translation: 风扇叶片包括翼型部分和鞘部分。 护套部分具有鞘头部分，第一护套侧面和第二护套侧面，两个侧面从前鞘部分向翼伸出。 护套部分结合到翼型部分，使得鞘头部分覆盖前翼型边缘，限定叶片前缘。 第一护套侧面覆盖靠近翼型件前缘的第一翼型件表面的一部分，共同限定叶片抽吸表面。 第二护套侧面覆盖靠近翼型件前缘的第二翼型件表面的一部分，共同限定叶片压力表面。 第一种金属材料是含有约0.5wt％至约3.0wt％的锂的铝合金。

    9.
    发明专利
    未知

    公开(公告)号：DE4440229A1

    公开(公告)日：1995-05-11

    申请号：DE4440229

    申请日：1994-11-10

    Applicant: UNITED TECHNOLOGIES CORP PRATT

    Inventor： SCHIRRA JOHN J ,  MILLER JOHN A ,  HATALA ROBERT W

    IPC: C22C19/05 ,  C22F1/00 ,  C22F1/10

    Abstract: A method of heat treating articles cast of a superalloy, comprising a nickel-base alloy capable of forming a chromium carbide precipitate, such as INCONEL 939 TM . The method includes selective heating of the article to cause chromium and carbon nuclei in the lattice of the crystals in the superalloy to go into solution, and selective cooling of the article to cause the formation of discrete chromium carbide nuclei along the grain boundary of the crystals. Additional heating steps may be performed to enhance the size of the chromium carbide nuclei. Articles so treated have improved mechanical properties.

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