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    • 2. 发明授权
    • Method of and apparatus for electromagnetic mixing of metal during
continuous casting
    • 连铸过程中金属电磁混合的方法和装置
    • US4178979A
    • 1979-12-18
    • US815416
    • 1977-07-13
    • Jean-Pierre BiratRoger Ventavoli
    • Jean-Pierre BiratRoger Ventavoli
    • C22B9/00B01F13/08B22D11/10B22D11/115B22D11/12B22D27/02
    • B22D11/122B22D11/115
    • A molten metal is poured into the upper end of a vertically tubular continuous-casting mold and is withdrawn as a hardened casting from the lower end of the mold. An electromagnetic field is displaced upwardly counter-current to the descending metal so as to mix the molten part of the metal and displace non-magnetic inclusions away from the hardening skin of the metal. The mold is operated in accordance with the following formula:B.sup.2 .times.L=(1/.gamma.v)(16d.sup.2 +120d)wherein B equals effective strength of magnetic field in tesla, L equals overall vertical length of field in meters, .gamma. equals electrical conductivity of metal being cast in ohms.sup.-1 .times.meter.sup.-1, v equals vertical travel speed of field in meters/second, and d equals desired surface depth of non-metallic inclusions in millimeters i.e., the distance from the outer surface of the casting in a direction normal to this surface. As a rule the overall length L is varied to space the non-metallic inclusions the desired depth below the surface of the thus-produced casting.
    • 将熔融金属倒入垂直管状连续铸造模具的上端,并从模具的下端作为硬化铸件取出。 电磁场与向下的金属逆向位移,以便混合金属的熔融部分并使非磁性夹杂物远离金属的硬化表皮。 模具按照以下公式进行操作:B2xL =(1 /γv)(16d2 + 120d)其中B等于有效磁场强度,单位为特斯拉,L为总体垂直长度,以米为单位,伽马等于电导率 金属以欧姆 - 1xmeter-1铸造,v等于以米/秒为单位的垂直行进速度,d等于非金属夹杂物的所需表面深度(以毫米为单位),即铸件外表面在正常方向上的距离 到这个表面。 通常,整体长度L是变化的,以使非金属夹杂物在所生产的铸件的表面下方的所需深度处于间隔。
    • 3. 发明授权
    • Liquid-cooled mold for continuous casting of molten metal
    • 用于连续铸造熔融金属的液冷模具
    • US4026346A
    • 1977-05-31
    • US699353
    • 1976-06-24
    • Jean Pierre BiratLouis Vedda
    • Jean Pierre BiratLouis Vedda
    • B22D11/10B22D11/04B22D11/055B22D11/115B22D27/02
    • B22D11/115
    • A tubular mold element is concentrically surrounded by a jacket defining an annular space therewith and a casing defining a chamber with the jacket. A liquid-tight element divides the chamber into a lower inlet chamber for a cooling liquid and an upper outlet chamber for the liquid. The annular space communicates at the respective ends of the jacket with the inlet and outlet chambers so that a cooling liquid film circulates through the space. The liquid-tight element comprises a first annular member affixed to the interior wall of the casing and a second annular member affixed to the exterior wall of the jacket so that the liquid-tight element supports the jacket at its lower end while its upper end is free of support. The upper end of the tubular mold element is supported in a central orifice of the mold cover which delimits the upper outlet chamber and the lower end of the mold element is centered liquid-tightly in a central orifice of the bottom mold wall delimiting the lower inlet chamber, the mold element being resiliently coupled to the bottom wall. An electromegnetic inductor is arranged in the outlet chamber for moving the molten metal in the passage of the mold element and the inductor is supported on the exterior wall of the tubular jacket.
    • 管状模具元件同心地围绕着限定其环形空间的外套和限定具有护套的腔室的壳体。 液密元件将腔室分成用于冷却液体的下入口室和用于液体的上出口室。 环形空间在夹套的相应端部处与入口和出口室连通,使得冷却液膜在该空间中循环。 液密元件包括固定到壳体的内壁上的第一环形构件和固定到护套的外壁的第二环形构件,使得液密元件在其下端支撑护套,而其上端为 没有支持。 管状模具元件的上端被支撑在模具盖的中心孔中,其限定上部出口室,并且模具元件的下端液密地位于底部模具壁的中心孔中,该中心孔限定下部入口 模具元件弹性地联接到底壁。 在出口腔室内布置有一个电气感应器,用于使模具元件的通道中的熔融金属移动,电感器被支撑在管状外壳的外壁上。
    • 4. 发明授权
    • Process for adjusting the secondary-cooling rate of a continuous-casting
machine
    • 调整连续铸造机二次冷却速度的工艺
    • US4562880A
    • 1986-01-07
    • US575041
    • 1984-01-30
    • Michel LarrecqDenis TrompJean-Pierre Birat
    • Michel LarrecqDenis TrompJean-Pierre Birat
    • B22D11/22B22D11/124
    • B22D11/225
    • In regulating the flow of cooling water sprayed upon a metallurgical product such as a steel slab in a machine for the continuous casting of such products which then undergo a straightening operation, the present, past and future speeds of the product are taken into account so as to compensate a projected change in the temperature of the product in the straightening stage, due to a planned or expected modification of the cooling conditions. These conditions are established by a regulating system responsive to changes in the speed of the product; the anticipated temperature change is compensated by substituting for the true speed, as a controlling parameter, a fictitious speed lying between the true speed and an advance image of an anticipated speed change whose effects upon the temperature are to be neutralized.
    • 在调节在用于连续铸造这种随后进行矫直操作的产品的机器中的冶金产品如钢板上喷射的冷却水的流动时,考虑产品的当前,过去和未来的速度,以便 以补偿由于冷却条件的计划或预期的改变而导致的矫直阶段中产品的温度的预期变化。 这些条件是通过响应于产品速度变化的调节系统建立的; 通过将作为控制参数的真实速度替换为真实速度和预期速度变化的预先图像之间的虚拟速度来补偿预期温度变化,其预期对温度的影响将被中和。
    • 5. 发明授权
    • Method of continuous centrifugally casting of metal strands of
non-circular cross-section
    • 连续离心铸造非圆形截面金属线的方法
    • US4205715A
    • 1980-06-03
    • US905868
    • 1978-05-15
    • Jacques RuerJean-Pierre Birat
    • Jacques RuerJean-Pierre Birat
    • B22D11/10B22D11/103B22D11/115B22D13/02B22D27/02
    • B22D11/115
    • A method of continuous centrifugally casting of metal strands of non-circular, preferably substantially square cross-section, in which the metal continuously passing through an ingot mold of corresponding cross-section is rotated about the longitudinal axis of the mold by means of a rotating magnetic field which may be created by a stationary multi-phase inductor, and wherein the metal in the mold is continuously replenished by a jet of liquid metal impinging on the free surface of the metal in the mold at a point of impact in the neighborhood of one corner of the mold, preferably at a point located on the diagonal substantially midway between the mold wall and the center of the mold. This method causes any slack contained in the metal to concentrate at the center of the free upper metal surface in the mold, from where it can be easily removed.
    • 连续离心铸造非圆形,优选基本上正方形横截面的金属线的方法,其中连续通过相应横截面的锭模的金属通过旋转的方式围绕模具的纵向轴线旋转 可由静止多相电感器产生的磁场,并且其中模具中的金属通过液体金属射流在模具附近的冲击点处撞击模具中的金属的自由表面而被连续地补充 模具的一个角部,优选地位于模具壁和模具中心之间大致中间的对角线处。 该方法使得金属中所含的任何松弛物集中在模具中的自由上金属表面的中心处,从而可以容易地去除其中。
    • 10. 发明授权
    • Cooling jacket for an ingot mold for the continuous casting of metal and
an ingot mold provided with the cooling jacket
    • 用于金属连续铸造的锭模的冷却套和具有冷却套的锭铸模
    • US4299267A
    • 1981-11-10
    • US29914
    • 1979-04-16
    • Jean-Pierre BiratLouis Vedda
    • Jean-Pierre BiratLouis Vedda
    • B22D11/04B22D11/041B22D11/055B22D11/115B22D27/02B22D11/10
    • B22D11/115B22D11/041
    • A cooling jacket for an ingot mold for the continuous casting of metal comprises a tubular element and a grid of stiffening ribs projecting from the outer surface of the tubular element, in which the grid is provided at the intersection of the stiffening ribs with openings or bores which pass also through the tubular element for the passage of fastening elements in form of tie rods therethrough by which an inner tube for the passage of the metal to be cast can be fastened to the cooling jacket with radial clearance. The upright ingot mold in which the cooling jacket is used and which is especially employed for the casting of steel, includes, besides the cooling jacket and the inner tube, an outer shell surrounding the cooling jacket with considerable clearance. The outer shell is closed by plates at opposite ends to which opposite ends of the inner tube are respectively fastened and these plates are provided with openings aligned with the opposite open ends of the inner tube. The space between the tubular element of the cooling jacket and the outer shell is divided by a transverse wall in a lower chamber with which the open lower end of the tubular element of the cooling jacket communicates and a longer upper chamber with which the open upper end of the tubular element communicates. A cooling water inlet communicates with the lower chamber adjacent the separating wall and a cooling water outlet communicates with the upper compartment at the other side and adjacent to the separating wall. A polyphase magnetic inductor is located in the upper compartment around the cooling jacket.
    • 用于连续铸造金属的锭模的冷却套包括管状元件和从管状元件的外表面突出的加强肋的格栅,其中网格设置在加强肋与开口或孔的交叉处 其也通过管状元件,用于通过用于穿过的拉杆的形式的紧固元件的通过,用于待铸造的金属的通道的内管可以通过径向间隙紧固到冷却套。 其中使用冷却套件并且特别用于铸钢件的直立铸锭模具除了冷却套和内管之外还包括具有相当大间隙的围绕冷却套的外壳。 外壳由位于内管的相对端分别紧固的相对端的板封闭,并且这些板设置有与内管的相对的开口端对准的开口。 冷却套管的管状元件和外壳之间的空间由下室中的横向壁分隔开,冷却套管的管状元件的开口下端与其连通,较长的上部室与开放的上端 的管状元件相通。 冷却水入口与邻近隔离壁的下室连通,冷却水出口在另一侧与分隔壁相邻的上隔室连通。 多相电磁感应器位于冷却套周围的上隔室中。