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公开(公告)号：US20100038050A1
公开(公告)日：2010-02-18
申请号：US10524620
申请日：2003-08-22
IPC分类号： B22D11/00
CPC分类号： B22D41/02 , B22D41/18 , B22D41/32 , B22D41/54 , C04B35/013 , C04B35/06 , C04B35/62665 , C04B2235/5427 , C04B2235/5436 , C04B2235/5472 , C04B2235/9676
摘要： Disclosed is a method of continuous casting of aluminum-killed steel, using a refractory martial containing 20 mass % or more of CaO.MgO-based clinker. 60% or more of MgO grains included in the grains of the CaO.MgO-based clinker have a diameter of 50 μm or less. The refractory martial is used at least at a portion to be in contact with molten steel. The present invention can reduce the diameter of MgO grains as inclusions in slabs to suppress the occurrence of flaws in a milled sheet metal.
摘要翻译： 公开了使用含有20质量％以上的CaO.MgO系熟料的耐火武器连续铸造铝镇静钢的方法。 包含在CaO.MgO基熟料的颗粒中的60％以上的MgO颗粒的直径为50μm以下。 至少在与钢水接触的部分使用耐火材料。 本发明可以减少作为板坯中的夹杂物的MgO颗粒的直径，以抑制碾磨的金属板中的缺陷的发生。
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公开(公告)号：US4746038A
公开(公告)日：1988-05-24
申请号：US882662
申请日：1986-07-07
CPC分类号： B22D41/58
摘要： A gas-blow casting nozzle has an annular gas-blowing hollow chamber with a gas-permeable part which is provided between the hollow chamber and the pouring hole of the nozzle body, and a number of joint parts for integrally joining the inner wall and the outer wall of the hollow chamber, which are provided in the radial direction of the annular hollow chamber. The total of the vertical section of the cylindrical area of the joint parts is about 30% to 70% of the cylindrical area of the hollow chamber. The gas-blowing hollow chamber which has the function of a heat-insulating layer is so constructed that the inner wall and the outer wall of the hollow chamber are partially and uniformly joined with the joint parts, and the joint parts are made to have the function of a heat-transfering layer, whereby the temperature difference in the radial direction of the nozzle body may be made small and the occurrence of thermal stress in the casting nozzle may be prevented. Because of the reduction of the temperature difference between the inner part and the outer part of the hollow chamber in the gas-blow casting nozzle, the breakdown damage of the nozzle body may be prevented.
摘要翻译： 气体喷射喷嘴具有环形气体吹出中空室，其具有设置在中空室和喷嘴体的排出孔之间的透气部分，以及多个用于将内壁和 中空室的外壁，其设置在环形中空室的径向方向上。 接头部分的圆柱形区域的垂直截面的总和为中空室的圆柱形区域的约30％至70％。 具有绝热层功能的气体吹入中空室被构造成使得中空室的内壁和外壁与接合部分部分均匀地接合，并且使接头部分具有 可以使喷嘴体的径向温度差小，并且可以防止铸造用喷嘴中的热应力的发生。 由于气体喷射喷嘴中的中空室的内部和外部之间的温度差的降低，可以防止喷嘴体的击穿损伤。
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公开(公告)号：US5645120A
公开(公告)日：1997-07-08
申请号：US493513
申请日：1995-06-22
CPC分类号： B22D41/502 , B22D41/56
摘要： A casting nozzle joint structure capable of easily positioning and jointing a nozzle without any holder for fixing and supporting a continuous casting nozzle therethrough. The joint structure comprises fitting mechanism formed in and on the mating faces of the continuous casting nozzle and the pressure clamper. The fitting mechanism includes a convex portion and a concave portion formed in and on the mating faces of the continuous casting nozzle and the pressure clamper so that they fit one another. The concave or convex portion formed in the mating face of the continuous casting nozzle is fitted on or in the convex or concave portion formed in the mating face of the pressure clamper, and this pressure clamper clamps the fitted engagement. Thus, the nozzles can have their outlet bores positioned, and the submerged entry shroud can have its discharge port oriented.
摘要翻译： 一种铸造喷嘴接头结构，其能够容易地定位和接合喷嘴，而没有任何用于固定和支撑连续铸造喷嘴的保持器。 接头结构包括形成在连续铸造喷嘴和压力夹持器的配合面中及其上的配合机构。 配合机构包括形成在连续铸造喷嘴和压力夹持器的配合面中及其上的凸部和凹部，使得它们彼此适配。 形成在连续铸造喷嘴的配合面中的凹部或凸部配合在形成于压力夹持件的配合面的凸部或凹部中，该压力夹持器夹持配合接合。 因此，喷嘴可以具有它们的出口孔定位，并且浸没的进入护罩可以使排出口定向。
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公开(公告)号：US4867932A
公开(公告)日：1989-09-19
申请号：US89294
申请日：1987-08-25
CPC分类号： B22D41/58 , Y10S264/44
摘要： A process is disclosed for making a casting nozzle wherein gas can be blown out through the outlet of the nozzle to prevent the sticking of nonmetallic impurities to the nozzle during use. Reticulate organic filaments in the form, e.g., of a net are applied around a preformed inner cylindrical refractory body having a pouring hole therein. An outer cylinder body is then formed around the inner cylinder body including the organic filaments. The entire body is then fired, whereby the organic filaments carbonize and evaporate, leaving a network of gas-permeable reticulate holes in the body. An outlet is drilled or cut in the fired body through the gas-permeable holes to the pouring holes. Accordingly, when the nozzle is in use, a blowing gas can be provided through the reticulate holes to the nozzle outlet to prevent the sticking of nonmetallic impurities.
摘要翻译： 公开了一种用于制造铸造喷嘴的方法，其中气体可以通过喷嘴的出口吹出，以防止非金属杂质在使用过程中向喷嘴粘附。 例如网状的网状有机细丝被施加在其内具有倾倒孔的预制的内圆柱形耐火材料体周围。 然后在包括有机细丝的内筒体周围形成外筒体。 然后烧结整个身体，由此有机细丝碳化和蒸发，在体内留下透气网状孔网。 在燃烧体中通过透气孔钻出或切割出口到排出孔。 因此，当使用喷嘴时，可以通过网孔向喷嘴出口提供吹气，以防止非金属杂质的粘附。
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公开(公告)号：US4779775A
公开(公告)日：1988-10-25
申请号：US897885
申请日：1986-08-19
CPC分类号： B22D41/58 , Y10S264/44
摘要： A casting nozzle designed such that the sticking of nonmetallic impurities to the outlet of the nozzle is prevented by blowing out a gas. The casting nozzle comprises a nozzle proper, an annular hollow chamber for gas blowing formed in the axial direction of the nozzle proper, and annularly arranged reticulate small holes for gas blowing communicating with the annular hollow chamber, the small holes opening at the outlet of the nozzle. The reticulate small holes are formed when organic filaments wound round a portion of the inside wall of the nozzle proper carbonize, volatilize, or shrink upon heating.
摘要翻译： 铸造喷嘴被设计成通过吹出气体来防止非金属杂质粘附到喷嘴的出口。 铸造喷嘴包括喷嘴本体，在喷嘴本体的轴向形成的用于鼓风的环形中空室，以及与环形中空室连通的用于气体吹送的环形布置的网状小孔， 喷嘴。 当在喷嘴的内壁的一部分上缠绕的有机细丝在加热时碳化，挥发或收缩时形成网状小孔。
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