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1. 发明公开

EP2158984A1 MOLD FOR CONTINUOUS CASTING OF ROUND BILLET CAST PIECE AND METHOD OF CONTINUOUS CASTING THEREOF 审中-公开
标题翻译： KOKILLE ZUM STRANGGIESSEN VONRUNDKNÜPPELGUSSTEILENUND STRANGGIESSVERFAHRENDAFÜR
公开(公告)号：EP2158984A1
公开(公告)日：2010-03-03
申请号：EP07791280.6
申请日：2007-07-25
申请人： Sumitomo Metal Industries, Ltd.
发明人： KAWAMOTO, Masayuki , TSUKAGUCHI, Yuichi , HANAO, Masahito , HIRATA, Atsushi , HAYASHI, Hiroshi , ADACHI, Manabu
IPC分类号： B22D11/043 , B22D11/108
CPC分类号： B22D11/043 , B22D11/108
摘要： In a mold for continuously casting a round billet with a curved type continuous casting apparatus, assuming that D 0 (m) is an inner diameter at a lower mold edge and R 0 (m) is a curvature radius of an outer curvature side at the lower mold edge, when a rate of change Tp (%/m) in mold inner diameter per unit length along a casting direction is expressed by Formula 1, and when a rate of change Rp (%/m) in curvature radius of an outer curvature side per unit length along the casting direction is expressed by Formula 2, the rate of change Tp in mold inner diameter and the rate of change Rp in curvature radius satisfy a relationship expressed by Formula 3; Tp = 1 / D 0 × dD / dx × 100 % / m Rp = 1 / R 0 × dR / dx × 100 % / m
where D in Formula 1 is a mold inner diameter at a distance x away from an upper mold edge and R in Formula 2 is a curvature radius of the outer curvature side at the distance x, Rp = Tp / 2 × D 0 / R 0 .
Uniform and good contact is obtained between the billet and a mold inner peripheral surface over a whole circumference, so that the casting-defect-free high-quality round billet can stably be produced.
摘要翻译：在用弯曲型连续铸造设备连续铸造圆钢坯的模具中，假设D 0（m）是下模边缘处的内径，R 0（m）是外弯曲侧的曲率半径当模具内径沿着铸造方向的单位长度的变化率Tp（％/ m）由公式1表示时，当外部的曲率半径的变化率Rp（％/ m）沿着铸造方向的单位长度的曲率侧由公式2表示，模具内径的变化率Tp和曲率半径的变化率Rp满足式3所示的关系; Tp = 1 / D 0×dD / dx×100％/ m Rp = 1 / R 0×dR / dx×100％/ m式1中的D为与上模边距离x的模内径公式2中的R是距离x处的外曲率侧的曲率半径，Rp = Tp / 2×D 0 / R 0。坯料与模具内周面在整个圆周上均匀且良好的接触，从而能够稳定地制造无铸造缺陷的高品质圆钢坯。

2. 发明公开

EP2161086A1 METHOD OF CONTINUOUS CASTING FOR SMALL-SECTION CAST PIECE 有权
标题翻译： VERFAHREN ZUM STRANGGIESSENFÜRGUSSTEILE MIT KLEINEM PROFIL
公开(公告)号：EP2161086A1
公开(公告)日：2010-03-10
申请号：EP07791268.1
申请日：2007-07-25
申请人： Sumitomo Metal Industries, Ltd.
发明人： TSUKAGUCHI, Yuichi , KAWAMOTO, Masayuki , HANAO, Masahito , HIRATA, Atsushi , HAYASHI, Hiroshi , ADACHI, Manabu
IPC分类号： B22D11/128 , B22D11/16 , B22D11/20 , B22D11/22
CPC分类号： B22D11/1282 , B22D11/141 , B22D11/142 , B22D11/166 , B22D11/225
摘要： A method for continuously casting a billet with a small cross section in which a curved type or vertical type continuous casting machine is used while oscillating the mold upward and downward, is characterized in that: the casting machine is provided with a mechanism for withdrawing speed oscillation wherein the mechanism comprises elastic parts either alone or in combination with dampers between the motors for driving pinch rolls at a speed corresponding to an aimed withdrawing speed and the pinch rolls, the mechanism has structural play in the directions of driving and reverse driving in such a manner that the amount of a play-incurred displacement from the neutral position of the structural play in the direction of billet driving or reverse driving is ± 2 to ± 30 mm in the direction of driving on the pinch roll circumferential length equivalent basis, and the mechanism produces a returning force toward the neutral position, whereby: the billet withdrawing speed during the upward period of mold oscillation becomes slower than the average withdrawing speed and during the downward period of mold oscillation faster than the average withdrawing speed; and operational parameters such as the billet length, the specific amount of secondary cooling water, the casting speed as well as the oscillation amplitude and frequency are optimized. By this method, a billet with a small cross section can be produced continuously in the condition of stable operation while stably reducing the friction force between the mold and the billet and preventing such troubles as sticking of the billet to the mold.
摘要翻译：其特征在于：铸造机具有用于退回速度振荡的机构，其特征在于，连续铸造具有弯曲型或垂直型连续铸造机的小截面的钢坯，其特征在于，所述机构包括弹性部件，所述弹性部件单独地或与所述电动机之间的阻尼器相结合，所述阻尼器用于以对应于所述牵引速度的速度驱动所述夹送辊，所述机构在所述驱动和反向驱动的方向上具有结构性的作用方式是，在夹送辊周向长度等效的驱动方向上，坯料驱动或反向驱动方向上的结构作用的中立位置的打架位移量为±2〜±30mm，机构向中立位置产生返回力，由此：在向上p期间的坯料抽出速度模具振荡的时间变得比平均抽出速度慢，并且在模具振荡的下降期间比平均提取速度快; 优化了坯料长度，二次冷却水的具体量，铸造速度以及振荡幅度和频率等运行参数。通过这种方法，可以在稳定运行的条件下连续地制造具有小横截面的钢坯，同时稳定地降低模具和坯料之间的摩擦力，并且防止坯料粘附到模具上的问题。

3. 发明公开

EP2008733A1 PROCESS FOR PRODUCING SEAMLESS PIPE 有权转让
标题翻译：生产无缝管的过程
公开(公告)号：EP2008733A1
公开(公告)日：2008-12-31
申请号：EP06730223.2
申请日：2006-03-28
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： YAMANAKA, Akihiro , ADACHI, Manabu , YAMAKAWA, Tomio , NAKAIKE, Kouji , SHIMODA, Kazuhiro , ANRAKU, Toshiro
IPC分类号： B21B19/04 , B22D11/00 , B22D11/124 , B22D27/04
CPC分类号： B21B19/04 , B22D11/124
摘要： A process for producing a seamless pipe characterized by including a continuous casting step in which a round billet material having a carbon content of not more than 0.1% by mass and having an outside diameter exceeding 300 mm is cast so that the whole of a central circular region, in terms of cross section, which has a diameter of at least 60 mm may be constituted of an equiaxed crystal structure. Further, in the process for seamless-pipe production, the round billet obtained from the billet material as cast produced in the above continuous casting step may be pierced/rolled with a piercing/rolling machine under conditions in which the ratio of the number of billet rotations to the billet outer diameter draft is set in the suitable range according to the ratio of the gorge portion diameter to the inlet diameter at the inclined rolls, thereby giving a seamless pipe reduced in the incidence of inner surface flaws. Furthermore, as a piercing plug, a suitably configured plug, having a substantially round column-shaped front rolling section with a spherical tip face, may be used, so that Mannesmann fracture and circumferential shear strains are significantly inhibited and no billet onset-engagement failure occurs at all. This process for seamless-pipe production makes it possible to produce a seamless pipe much more improved in inner surface quality with exceedingly high productivity.
摘要翻译： 1.一种无缝管的制造方法，其特征在于，具有连续铸造工序，该连续铸造工序中，将碳含量为0.1质量％以下且外径超过300mm的圆坯材铸造成整体中央圆形就截面而言，直径至少60mm的区域可以由等轴晶体结构构成。此外，在无缝钢管生产过程中，由上述连续铸造步骤生产的铸件坯料获得的圆坯可以在穿孔/轧制机的条件下进行穿孔/轧制，其中钢坯数量根据倾斜辊处的峡部直径与入口直径的比率，将对钢坯外径吃水的旋转设定在合适的范围内，从而得到内表面缺陷减少的无缝钢管。此外，作为穿孔塞，可以使用适当构造的具有基本上为圆柱形的具有球形顶端面的圆柱形前部轧制部分的塞子，从而显着抑制曼内斯曼断裂和圆周剪切应变，并且不会出现钢坯起始接合失效根本不存在。这种无缝管生产工艺可以生产出内表面质量更高，生产效率极高的无缝管。

4. 发明公开

EP2409795A1 TEMPERATURE MEASURING METHOD AND DEVICE FOR CONTINUOUS-CASTING MOLD COPPER PLATE 有权
标题翻译： VORRICHTUNGFÜREINE STRANGGUSSFORMKUPFERPLATTE的温度
公开(公告)号：EP2409795A1
公开(公告)日：2012-01-25
申请号：EP09841838.7
申请日：2009-03-17
申请人： SUMITOMO METAL INDUSTRIES, LTD.
发明人： HONDA, Tatsuro , YAMANO, Masaki , MURAKAMI, Toshihiko , ADACHI, Manabu
IPC分类号： B22D11/16 , B22D2/00 , G01K11/24
CPC分类号： B22D2/006 , B22D11/041 , B22D11/16 , G01K11/24 , G01K13/00
摘要： The method relating to the present invention is a method for measuring temperature of a mold copper plate C which constitutes a continuous casting mold for molten metal M, including: a first procedure of providing a reflection source R of ultrasonic wave inside the mold copper plate C; a second procedure of causing an ultrasonic wave to propagate in a direction substantially in parallel with an adjacent surface C1 with molten metal M of the mold copper plate C from an ultrasonic transceiver element 1 toward the reflection source R; and a third procedure of calculating a temperature of the mold copper plate C based on a propagation time of an ultrasonic echo Us that is reflected at the reflection source R and is detected by the ultrasonic transceiver element 1, and a temperature dependence of a propagation speed of ultrasonic wave.
摘要翻译：关于本发明的方法是一种用于测量构成熔融金属M的连续铸造模具的模具铜板C的温度的方法，包括：在模具铜板C内提供超声波反射源R的第一过程 ; 使超声波在与邻接表面C1大致平行的方向上与模具铜板C的熔融金属M从超声波收发器元件1朝向反射源R传播的第二过程; 以及基于在反射源R反射并被超声波收发器元件1检测到的超声回波Us的传播时间来计算模具铜板C的温度的第三步骤，以及传播速度的温度依赖性的超声波。

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