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    • 1. 发明专利
    • Seal-welding method for core supporting hole in turbine blade and turbine blade
    • 在涡轮叶片和涡轮叶片中支撑孔的密封焊接方法
    • JP2003311404A
    • 2003-11-05
    • JP2002120201
    • 2002-04-23
    • Hitachi Ltd株式会社日立製作所
    • TSUKAMOTO TAKESHIMIYAZAKI KUNIO
    • B23K9/23B23K9/00B23K9/02B23K15/00B23K26/00B23K26/20B23K103/08
    • PROBLEM TO BE SOLVED: To prevent defective welding caused by the variation of thickness of a blade when a core supporting hole formed in the turbine blade composed of nickel-based heat resistance alloy is seal-welded. SOLUTION: In the seal-welding method for the core supporting hole in the turbine blade formed with the nickel-based heat resistance alloy, the hole is formed by removing the core supporting part before a core elution process in the turbine blade cast made with a precision casting. Further, after performing a pattern-working for transcribing a prescribed excess thickness shape on the welded metal when this hole is sealed with the welding metal to the core at the lower part of this hole, a filler material composed of the nickel-based alloy is supplied into this hole to perform the seal-welding. Therefore, the yield in the turbine blade production and the reliability of the blade are improved. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:为了防止由形成在由镍基耐热合金构成的涡轮叶片中的芯支撑孔密封焊接时由于叶片的厚度变化引起的焊接不良。 解决方案:在形成有镍基耐热合金的涡轮叶片中的芯支撑孔的密封焊接方法中,通过在涡轮叶片铸造中的核心洗脱过程之前除去芯部支撑部而形成孔 用精密铸造制成。 此外,当该孔被焊接金属密封在该孔的下部的芯上时,在对焊接金属进行用于转印规定的多余厚度形状的图案加工之后,由镍基合金构成的填充材料为 供给到该孔中进行密封焊接。 因此,提高了涡轮叶片的生产量和叶片的可靠性。 版权所有(C)2004,JPO
    • 3. 发明专利
    • PULSE ARC WELDING EQUIPMENT
    • JP2001162372A
    • 2001-06-19
    • JP34609999
    • 1999-12-06
    • HITACHI LTD
    • KUMASAKA TAKAOKONUMA AKIRAMIYAZAKI KUNIO
    • B23K9/127B23K9/073B23K9/09
    • PROBLEM TO BE SOLVED: To provide a high frequency pulse are welding equipment having an excellent controllability of a torch driving part which adjusts an are length. SOLUTION: In a pulse arc welding equipment provided with a welding torch having an arc electrode, a pulse welding power supply which supplies a high frequency pulse current which periodically generates a high frequency pulse arc voltage on the arc electrode, a torch driving part furnished with a servo motor or the like, which adjusts the gap between the arc electrode of the welding torch and welded base material, and an arc voltage detecting part which detects the voltage between the arc electrode and the welded base material, the equipment is characterized by the face that a unit of averaging processing in an ON-period is provided for deriving an average value of the arc voltage during a time interval from the beginning of the rice of the pulse arc voltage to the end of its fall, and the torch driving unit is so adjusted and actuated that the average value of the voltage in the ON-period derived by the part of averaging processing in the ON-period approximately coincides with a reference value of the arc voltage.
    • 10. 发明专利
    • WIRING STRUCTURE BODY AND ITS FORMATION
    • JPH01124282A
    • 1989-05-17
    • JP28284287
    • 1987-11-09
    • HITACHI LTD
    • MIURA OSAMUWATANABE HIROSHIMIYAZAKI KUNIOOGOSHI YUKIOOGINOYA MITSUO
    • H05K3/38H01L23/00H01L23/29H05K1/03
    • PURPOSE:To enhance contact adhesion performance between an insulating film and a wiring conductor and to enhance reliability of moistureproofness at an interface by a method wherein a mixed layer composed of the insulating film containing a hydropholic group and of a metal material constituting the wiring conductor is provided at a boundary part between the wiring conductor and the insulating film. CONSTITUTION:While the surface of a polyimide film 2 is being irradiated by a plasma of individual gases of helium and oxygen and, in succession, the surface of a polyimide is being irradiated with ions of helium, Al is electron- evaporated; after the evaporation, a photoetching operation is executed and a wiring conductor 4 of Al is formed. In addition, a process identical to this is repeated and an Al wiring part is laminated; an LSI 7 is bonded by using a solder 6; a multilayer wiring structure body is manufactured. A mixed layer formed at an interface between the polyimide and Al or Cu prevents water from penetrating because an ethyl group (-C2H5) as a hydrophobic group exists; in addition, the Al and the polyimide are bonded by laying a carbonyl group as a hydrophile group; a bonding force between both is enhanced.