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    STRAIN REDUCTION OR REVERSAL TECHNIQUE FOR CONTINUOUS CASTING OF METALS
    11.
    发明专利
    STRAIN REDUCTION OR REVERSAL TECHNIQUE FOR CONTINUOUS CASTING OF METALS 未知

    公开(公告)号：CA1089176A

    公开(公告)日：1980-11-11

    申请号：CA279729

    申请日：1977-06-02

    Applicant: TECHNICON INSTR

    Inventor： WATTS LEONARD ,  SLOGAN RUSSELL E

    IPC: B22D11/14 ,  B22D11/04

    Abstract: Strain reduction or reversal technique for continuous casting of a metal billet element wherein there is provided an axial mold wall which is oscillatable, a plug element in the axial wall which may be solid in the sense that it closes one end of the mold or which may be of a type in which molten metal may flow therethrough into the mold, one of said elements being oscillatable independently of the axial wall in a manner to relieve strain on metal newly freezing to the axial wall during oscillation of the axial wall.

    12.
    发明专利
    未知

    公开(公告)号：RO65492A

    公开(公告)日：1980-01-15

    申请号：RO7815574

    申请日：1974-03-23

    Applicant: TECHNICON INSTR

    Inventor： WATTS LEONARD

    IPC: B22D11/045 ,  B22D11/047 ,  B22D11/04 ,  B22D11/053 ,  B22D13/00

    Abstract: Continuous casting of metal in which molten metal contacts a cooled axial mold wall surface to form a skin increasing in thickness in a direction toward a discharge opening of the mold. At least a portion of the last-mentioned mold surface increases in cross-sectional size over its length in the direction of the discharge opening. The casting is relatively withdrawn from the mold at an average casting rate during the casting operation and also the casting and the mold are oscillated relatively to one another in a particular manner. The maximum velocity capability of oscillation is greater than the casting rate. During oscillation and relative movement of the mold in the casting direction, a substantially constant, compressive loading of the last-mentioned mold surface portion on the skin of the casting is maintained throughout a portion of the last-mentioned movement. Concurrently with the relative movement of the mold in the casting direction, the resistance of the casting to mold movement is allowed to slow the mold velocity to approximately that of the casting, so as to minimize hot tearing of the skin of the casting.

    13.
    发明专利
    未知

    公开(公告)号：DE2554376A1

    公开(公告)日：1976-06-24

    申请号：DE2554376

    申请日：1975-12-01

    Applicant: TECHNICON INSTR

    Inventor： WATTS LEONARD

    IPC: B22D11/04 ,  B22D11/00 ,  B22D11/14 ,  B22D23/10 ,  B22D7/00

    Abstract: Method and apparatus for continuously casting metal tubing, utilizing an oscillatable mold, which lends itself to the casting of tubing of relatively large internal diameter. Molten metal is poured directly into the mold having a chilled axial wall structure, and then a starting bar, having at least an annular end portion immersed in the molten metal in the mold, is moved relatively to the mold to withdraw the solidifying cast metal tubing adhering thereto, during oscillation of the mold, the molten metal for such tubing being supplied from the mold. The supply of molten metal in the mold may be replenished by pouring additional molten metal directly into the mold through the annular starting bar without contact of the molten metal with either the starting bar or the solidifying tubing prior to the entry of such molten metal into the mold.

    17.
    发明专利
    未知

    公开(公告)号：FR2294782A1

    公开(公告)日：1976-07-16

    申请号：FR7538353

    申请日：1975-12-15

    Applicant: TECHNICON INSTR

    Inventor： WATTS LEONARD

    IPC: B22D11/00 ,  B22D11/04 ,  B22D11/14 ,  B22D23/10

    Abstract: Method and apparatus for continuously casting metal tubing, utilizing an oscillatable mold, which lends itself to the casting of tubing of relatively large internal diameter. Molten metal is poured directly into the mold having a chilled axial wall structure, and then a starting bar, having at least an annular end portion immersed in the molten metal in the mold, is moved relatively to the mold to withdraw the solidifying cast metal tubing adhering thereto, during oscillation of the mold, the molten metal for such tubing being supplied from the mold. The supply of molten metal in the mold may be replenished by pouring additional molten metal directly into the mold through the annular starting bar without contact of the molten metal with either the starting bar or the solidifying tubing prior to the entry of such molten metal into the mold.

    19.
    发明专利
    未知

    公开(公告)号：DE2412424A1

    公开(公告)日：1974-10-03

    申请号：DE2412424

    申请日：1974-03-15

    Applicant: TECHNICON INSTR

    Inventor： WATTS LEONARD

    IPC: B22D11/04 ,  B22D11/045 ,  B22D11/047 ,  B22D11/053 ,  B22D11/00

    Abstract: Continuous casting of metal in which molten metal contacts a cooled axial mold wall surface to form a skin increasing in thickness in a direction toward a discharge opening of the mold. At least a portion of the last-mentioned mold surface increases in cross-sectional size over its length in the direction of the discharge opening. The casting is relatively withdrawn from the mold at an average casting rate during the casting operation and also the casting and the mold are oscillated relatively to one another in a particular manner. The maximum velocity capability of oscillation is greater than the casting rate. During oscillation and relative movement of the mold in the casting direction, a substantially constant, compressive loading of the last-mentioned mold surface portion on the skin of the casting is maintained throughout a portion of the last-mentioned movement. Concurrently with the relative movement of the mold in the casting direction, the resistance of the casting to mold movement is allowed to slow the mold velocity to approximately that of the casting, so as to minimize hot tearing of the skin of the casting.

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