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    Manufacture of interiorly coated tubing
    8.
    发明授权
    Manufacture of interiorly coated tubing 失效

    公开(公告)号：US3579772A

    公开(公告)日：1971-05-25

    申请号：US3579772D

    申请日：1969-01-27

    Applicant: TEXAS INSTRUMENTS INC

    Inventor： COAD BRIAN C

    IPC: C23C14/04 ,  C23C14/56 ,  B23P3/12

    CPC classification number: C23C14/562 ,  C23C14/046 ,  Y10T29/49982 ,  Y10T29/5185

    Abstract: This disclosure relates to continuously drawing a precleaned strip of metal past heating and evaporating means for the coating material and deforming the strip to bring the margins of the strip together to form an open-seamed, open-ended tube. The margins of the open seam are welded after the strip has been folded. The evaporated coating material enters the tube through its open end where it is being formed from strip to tube. As a result the inside surface of the tube has evaporated material condensed upon it in solid form. The condensate covers all of the inside surface, including also the welded seam. The inside-coated tube is cooled and passed through an appropriate finishing die or the like.

    Process of controlling the thickness of aluminum deposited on steel wire by controlling the depth of the bath of molten aluminum
    9.
    发明授权
    Process of controlling the thickness of aluminum deposited on steel wire by controlling the depth of the bath of molten aluminum 失效
    通过控制铝酸盐槽深度来控制钢板上沉积的铝厚度的过程

    公开(公告)号：US3565677A

    公开(公告)日：1971-02-23

    申请号：US3565677D

    申请日：1969-12-17

    Applicant: TEXAS INSTRUMENTS INC

    Inventor： DION PAUL A ,  COAD BRIAN C

    IPC: C23C2/12 ,  C23C1/08

    CPC classification number: C23C2/12

    Abstract: A BATH OF ALUMINUM IS MAINTAINED AT CERTAIN DEPTHS LESS THAN APPROXIMATELY 2 1/2 INCHES. AT A GIVEN DEPTH BELOW 2 1/2 INCHES A STEEL CORE WIRE IS CONTINUOUSLY MOVED UP VERTICALLY THROUGH THE BATH. THE TEMPERATURE OF THE CORE WIRE AND THAT OF THE BATH AFFECT THE AMOUNT OF ALUMINUM THAT IS RETAINED BY FREEZING ON THE CORE INDEPENDENTLY OF A SUBSTANTIAL RANGE OR WIRE SPEEDS. AT A GIVEN BATH DEPTH LESS THAN 2 1/2 INCHES THE PERCENTAGE OF WEIGHT OF ALUMINUM COATING CLINGING TO THE STEEL CORE MAY BE ADJUSTED SIMPLY BY VARYING THEIR RELATIVE TEMPERATURES.

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