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    MILL STAND
    13.
    发明专利
    MILL STAND 审中-公开

    公开(公告)号：JP2002178017A

    公开(公告)日：2002-06-25

    申请号：JP2001307508

    申请日：2001-10-03

    Applicant: ALCOA INC

    Inventor： PUDA MARK E

    IPC: B21B27/02 ,  B21B13/14 ,  B21B27/10 ,  B21B29/00 ,  B21B31/18 ,  B21B37/00 ,  B21B37/28 ,  B21B37/32 ,  B21B37/38 ,  B21B37/42 ,  B21B38/02

    Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for compensating fluctuating thermal expansion of rolls in the stand of a strip mill to obtain a strip having no defect of quater buckle. SOLUTION: The mill stand has a pair of side-shiftable rolls with which a roll gap profile which is fluctuated along the length of the rolls is divided on the way by a 6th order polynomial equation, the flatness of the strip delivered from the mill stand is controlled by detecting the roll temperature profile and adjusting the side-shift position of the roll so as to compensate the expansion of the roll caused by the variation of roll temperature.

    IMPROVED CAST ALLOY
    14.
    发明专利
    IMPROVED CAST ALLOY 失效

    公开(公告)号：JP2001064743A

    公开(公告)日：2001-03-13

    申请号：JP2000213065

    申请日：2000-07-13

    Applicant: ALCOA INC

    Inventor： DE YOUNG DAVID H ,  DUNLAY MARK J

    IPC: B22D11/00 ,  B22D11/01 ,  B22D11/049 ,  B22D21/00 ,  B22D21/04 ,  B22D27/18 ,  B22D27/20 ,  C22C21/00

    Abstract: PROBLEM TO BE SOLVED: To improve appearance of a cast ingot of an aluminum base metal, to exclude surface defects and to reduce surface oxidation by adding a specified ratio of strontium and a specified amt. of additives selected from alkaline earths, rare earths, transition metals and a crystal grain refining agent to the aluminum base metal. SOLUTION: In combination with aluminum and an aluminum alloy as melts, about 0.0001 to 0.50 wt.% strontium and, if required, about

    MANUFACTURE OF BRAZING SHEET
    15.
    发明专利
    MANUFACTURE OF BRAZING SHEET 失效

    公开(公告)号：JP2000153394A

    公开(公告)日：2000-06-06

    申请号：JP30208399

    申请日：1999-10-25

    Applicant: FORD GLOBAL TECH INC ,  ALCOA INC

    Inventor： EVANS TIMOTHY VAN ,  ZALUZEC MATTHEW J ,  GRAB GERALD A ,  MEHRABAN HENRY ,  BURT RONALD P ,  EYE JOHN B ,  UYEDA STACY

    IPC: B23K35/40 ,  B23K1/20 ,  B23K3/08 ,  B23K35/02 ,  B23K35/22 ,  B23K35/28 ,  B23K35/36

    Abstract: PROBLEM TO BE SOLVED: To improve a degree of freedom of a production by arranging a core material and a sheet having a joining clad and mechanically adhering flux to a sheet to conduct CAB brazing an aluminum brazing assembly with using a single process and with eliminating use of the flux. SOLUTION: In coating flux 19 on a sheet 13, the flux supplied in a flux hopper 22 is applied at a dry state by a general static electricity device or is applied at a wet state by using a carrier. When the flux 19 is rolled/applied on the sheet 13 between a pair of rollers 24 and heated/dried by the hot air from a heat source 26, the carrier of the flux 19 is evaporated, the flux 19 is left on the surface of the sheet 13, the sheet is coiled to a coiling wheel 32. By this method, a brazing sheet adhering the flux 19 can conduct stronger brazing by directly assembling, the flux is not required to apply on an assembly preassembled.

    Controlled fluid flow mold and molten metal casting method for improved surface
    17.
    发明专利
    Controlled fluid flow mold and molten metal casting method for improved surface 审中-公开
    控制流体流动模型和改进表面的金属铸造方法

    公开(公告)号：JP2006035312A

    公开(公告)日：2006-02-09

    申请号：JP2005187624

    申请日：2005-06-28

    Applicant: Alcoa Inc ,  アルコア インコーポレイテッド

    Inventor： CHU MEN G ,  GIRON ALVARO ,  CASADA WILLIAM A ,  YU HO

    IPC: B22D11/04 ,  B22D11/00 ,  B22D11/049

    CPC classification number: B22D11/0401 ,  B22D11/049

    Abstract: PROBLEM TO BE SOLVED: To provide a mold structure where the flow of a molten metal is controlled in such a manner that the quantity of oxides present on an ingot surface can be made minimum in DC casting for aluminum.
    SOLUTION: A DC casting mold 200 comprises a cooling tubular body 100 that has a thermally insulated insert 400 attached to its top surface. The thermally insulated insert has a bottom portion with a beveled sidewall 402, which forms an angle with a horizontal plane layer 130 of the molten metal and creates an eddy. The eddy causes a substantial number of oxides that are formed during the casting process to remain in the bottom sidewall portion of the thermally insulated insert of the mold, thereby substantially reducing the number of ingot surface imperfections that promote ingot cracking. In addition, the eddy promotes break-up of the oxides into smaller pieces as the oxides flow toward the cooled inner walls of the cooled tubular body, thereby having limited surface area for growth of an oxide layer.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种模具结构，其中以这样一种方式控制熔融金属的流动，使得在铝的直流铸造中，在铸锭表面上存在的氧化物的量可以最小化。 解决方案：直流铸造模具200包括具有附接到其顶表面的绝热插入件400的冷却管状体100。 绝热插入件具有底部，其具有倾斜的侧壁402，其与熔融金属的水平面层130形成一角度并产生涡流。 涡流导致在铸造过程中形成的大量氧化物保留在模具的绝热插入件的底部侧壁部分中，从而大大减少了促进锭裂纹的锭表面缺陷的数量。 此外，当氧化物流向冷却的管状体的冷却的内壁时，涡流促进氧化物分解成更小的部分，从而具有有限的氧化物层生长的表面积。 版权所有（C）2006，JPO＆NCIPI

    TAPER AND FLARE ENERGY ABSORBING SYSTEM
    18.
    发明专利
    TAPER AND FLARE ENERGY ABSORBING SYSTEM 审中-公开

    公开(公告)号：JP2003160010A

    公开(公告)日：2003-06-03

    申请号：JP2002234751

    申请日：2002-08-12

    Applicant: ALCOA INC

    Inventor： SUMME TODD L ,  YEH JIEH-REN ,  STULL ERIC M

    IPC: B60R19/18 ,  B60R19/34 ,  F16F7/12

    Abstract: PROBLEM TO BE SOLVED: To provide an energy absorbing system and method capable of solving various restrictions on a present embodiment of a crush tube absorbing system loaded in an axial direction. SOLUTION: This energy absorbing system and method is comprised of a crush tube, a taper structure portion, and a flare structure portion. The crush tube is inserted in a matching hole of the taper structure portion. When the taper structure portion and the flare structure portion are moved on the crush tube, the taper structure portion decreases a diameter of the crush tube, and the flare structure portion divides the crush tube into a plurality of petals. The crush tube may include a plurality of initiator slits for supporting flaring processing. When attached by a vertical shaft of the crush tube parallel with an impact axis, the energy absorbing system can absorb a large majority or all of collision accidents by eliminating energy by tapering, flaring, friction, and another method. COPYRIGHT: (C)2003,JPO

    METHOD FOR SMOOTHING SURFACE OF ALUMINUM OR ALUMINUM ALLOY USED AS AIRCRAFT PART AND SUCH AIRCRAFT PART
    20.
    发明专利
    METHOD FOR SMOOTHING SURFACE OF ALUMINUM OR ALUMINUM ALLOY USED AS AIRCRAFT PART AND SUCH AIRCRAFT PART 失效

    公开(公告)号：JP2002018696A

    公开(公告)日：2002-01-22

    申请号：JP2000178147

    申请日：2000-06-14

    Applicant: ALCOA INC

    Inventor： DAVID DEAN SULLIVAN ,  KERSHNER LARRY

    IPC: B24B29/00 ,  B64C1/12 ,  B64C3/26

    Abstract: PROBLEM TO BE SOLVED: To provide a method for efficiently and economically performing polishing work for removing defects such as orange peel, flaws and the like for smoothing and making glossy the surface of a skin sheet of an aircraft. SOLUTION: This method includes the step of performing sand paper polishing the outer surface of an aircraft part by a mechanical sand paper polishing machine to remove most of defects, the step of removing the defects not removed in the sand paper polishing step or the other defects, which is an intermediate finishing step for one or plural times, and a step of polishing and finishing the surface which has been sand paper polished plural times by a finishing polisher.

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