会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明公开
    • 흑연 함유 턴디쉬 용강 보온재
    • 包含石墨的土地通道
    • KR1020000026874A
    • 2000-05-15
    • KR1019980044605
    • 1998-10-23
    • 주식회사 포스코
    • 차대환최웅렬
    • B22D11/10
    • B22D11/108B22D11/111
    • PURPOSE: A tundish flux containing graphite is provided to improve work efficiency by minimizing the generation of dust when a flux is injected after it is made up into a granule, to prevent the re-oxidation of a molten metal by securing a spreading property and to save cost. CONSTITUTION: A tundish flux containing graphite is composed of SiO2: 60 to 65%, CaO: 1 to 2%, Al2: 10 to 15%, Glass: free, C: 10 to 14%, graphite: 2 to 8.5% and other impurities. The tundish flux is inflated at a high temperature and changed into a powder type, and its volume is increased as it contains graphite. The effect of preventing re-oxidation is improved since the contact with the air of the molten metal is perfectly blocked by the change of graphite, and the effect of keeping the molten metal is improved.
    • 目的:提供含石墨的中间包焊剂,通过在将粉末制成颗粒后注入焊剂时最大限度地减少灰尘产生,提高工作效率,通过确保扩散性能防止熔融金属的再次氧化,并 节省成本。 构成:含石墨的中间包焊剂由SiO2:60〜65%,CaO:1〜2%,Al2:10〜15%,玻璃:游离,C:10〜14%,石墨:2〜8.5%等组成 杂质。 中间包通量在高温下膨胀并变成粉末类型,并且其容积随着石墨而增加。 提高了防止再氧化的效果,因为与熔融金属的空气的接触被石墨的变化完全阻挡,并且提高了保持熔融金属的效果。
    • 4. 发明公开
    • 연속주조몰드의 폭방향 자기장 제어방법
    • 通过不同控制磁场在铸件宽度方向上优化模具流动的方法
    • KR1020050002222A
    • 2005-01-07
    • KR1020030043582
    • 2003-06-30
    • 주식회사 포스코
    • 문호정이창현이준호김성광최웅렬
    • B22D11/115
    • PURPOSE: To provide a method for controlling a magnetic field in width direction of continuous casting mold, the method for improving quality of slab by differently controlling magnitude of magnetic field in a width direction of casting of continuous casting mold, thereby supplying flow of molten steel to a short side portion of the mold. CONSTITUTION: In a method for controlling a magnetic field in a width direction of the mold to optimize flow of molten steel discharged from a submerged entry nozzle in a mold of the continuous casting process, the method comprises a step of installing the core plates on the magnetic field core in such a way that the number(thickness) of core plates(12) to be attached to a magnetic field core(13) installed at a long side portion(14) is getting decreased as it goes from the center of the long side port to both sides thereof in order to change magnitudes of the magnetic field impressed to a short side portion(9) and a central portion of the continuous casting mold; and a step of reducing depth of a hook that is a boundary layer of solidified shell by changing a ratio of the magnitudes of the magnetic field impressed to the short side portion and the central portion of the continuous casting mold, thereby supplying molten steel flow to the short side portion to perform soft cooling of slab.
    • 目的:提供一种控制连续铸造模具的宽度方向的磁场的方法,通过不同程度地控制连续铸造模具的铸造宽度方向上的磁场大小来提高板坯质量的方法,从而提供钢水流动 到模具的短边部分。 构成:在用于控制模具的宽度方向上的磁场的方法中,优化在连续铸造工艺的模具中从浸入式喷嘴排出的钢水的流动,​​该方法包括将芯板安装在 磁芯芯,使得安装在长边部分(14)上的磁场铁芯(13)的芯板(12)的数量(厚度)从其中心开始减小 为了改变施加到连续铸模的短边部分(9)和中心部分的磁场的大小; 以及通过改变施加到连续铸造模具的短边部分和中心部分的磁场的大小的比率来减小作为凝固壳体的边界层的钩的深度的步骤,从而将钢水流向 短边部分进行板坯软冷。
    • 5. 发明公开
    • 연속주조 주조말기에 턴디쉬내 투입하는 플러그 및 그플러그의 투입방법
    • 在连续铸造结束时进入土耳其的钢管以及用于拉伸钢筋以提高钢的实际使用寿命的方法
    • KR1020040092817A
    • 2004-11-04
    • KR1020030027135
    • 2003-04-29
    • 주식회사 포스코
    • 김승현김준식최웅렬문호정
    • B22D11/18
    • PURPOSE: To provide a plug capable of suppressing inflow of slag remained in tundish in mold by throwing refractory plug into tundish at the end of continuous casting and improving actual yield of molten steel by automatically closing an injection port of the mold by specific gravity of the plug itself. CONSTITUTION: The plug is thrown into tundish at the end of continuous casting so that the plug closes a molten steel injection port by specific gravity of the plug itself according to drop of the surface level of molten steel while the plug is being floated on the upper surface of molten steel, wherein the plug has specific gravity of 3.0 to 4.7 g/cm¬3, the plug is formed in a reverse conical shape, the plug has such a size that the plug is projected as much as thickness of slag layer of tundish after closing the molten steel injection port, and diameter of a lower part of the plug is set to the range of 30 to 40 mm, and wherein the plug comprises 50 to 60 wt.% of chromium, 10 to 14 wt.% of alumina, 23 to 27 wt.% of metal shot ball, 4.5 to 5.0 wt.% of binder and a trace of other metal fiber. The method comprises a step of throwing the plug (10) onto the upper surface of molten steel through a tundish cover hole (9) on an upper part of molten steel injection port before vortex is formed in an upper part of the molten steel injection port in tundish after injecting molten steel of last ladle for continuous casting into tundish; and a step of attaching plug sensors (11a,11b) to the molten steel injection port so that sliding gate is closed by an automatic injection port closing system (12) when the plug touches the plug sensors.
    • 目的:提供一种能够通过在连续铸造结束时将耐火塞投入到中间包中而保留在模具中的中间包中的流入的插塞,并且通过以下方式自动地关闭模具的注射口来提高钢水的实际产量: 插上自己 构成:在连续铸造结束时,将塞子投入中间包中,使得塞子根据塞子本身的比重根据钢水表面水平的下降而关闭钢水注入口,同时塞子浮在上部 钢水表面,其中塞子的比重为3.0至4.7g / cm 3,塞子形成为倒圆锥形,塞子的尺寸使得塞子的投射量与 在关闭钢水注入口之后的中间包,并且塞子的下部的直径设定在30〜40mm的范围内,并且其中塞子包含50〜60重量%的铬,10〜14重量% 氧化铝,23〜27重量%的金属球丸,4.5〜5.0重量%的粘合剂和痕量的其他金属纤维。 该方法包括在钢水注入口的上部形成涡流之前,通过钢水注入口上部的中间包覆盖孔(9)将塞子(10)投入到钢水的上表面上的步骤 在中间包中注入最后钢包的钢水连续铸造成中间包; 以及将塞子传感器(11a,11b)附接到钢水注入口的步骤,当塞子接触塞子传感器时,通过自动注射口关闭系统(12)将滑动门关闭。
    • 6. 发明公开
    • 다기능 턴디쉬 플럭스
    • TUNNDISH FLUX
    • KR1020010091633A
    • 2001-10-23
    • KR1020000013506
    • 2000-03-17
    • 주식회사 포스코
    • 최웅렬김준식민병진박제민
    • B22D11/00
    • B22D11/108B22D11/16
    • PURPOSE: A tundish flux that is used in continuous-continuous casting process of steelmaking facilities is provided to endow deoxidation ability to conventional tundish flux by adding metallic aluminum to tundish flux and composing its constituents properly. This tundish flux has refining capacity to molten steel and also is easily deslagged without affecting cleanliness of molten steel in following continuous-continuous casting process. CONSTITUTION: The tundish flux is characterized by comprising 5.0wt.% or less of SiO2, 43-49wt.% of CaO, 32-35wt.% of Al2O3, 5-10wt.% of Na2O, and 7-9wt.% of metallic Al with at least 95% purity and particle size of 2 to 5mm.
    • 目的:提供炼钢设备连续铸造工艺中的中间包焊剂,通过向中间包中添加金属铝,适当组成其组成成分,为传统中间包焊剂提供脱氧能力。 这种中间包焊剂具有对钢水的精炼能力,并且在随后的连续铸造工艺中也不会影响钢水的清洁度而容易地脱渣。 构成:中间包通量的特征在于包括5.0重量%或更少的SiO 2,43-49重量%的CaO,32-35重量%的Al 2 O 3,5-10重量%的Na 2 O和7-9重量%的金属 Al,纯度至少为95%,粒径为2〜5mm。
    • 7. 发明授权
    • 청정강 제조를 위한 턴디쉬 플럭스 투입방법
    • 抛出中间包焊剂获得干净钢的方法
    • KR100940663B1
    • 2010-02-05
    • KR1020020056053
    • 2002-09-16
    • 주식회사 포스코
    • 문호정최웅렬박용희김해원
    • B22D11/18
    • 본 발명은 알루미늄 탈산강을 연속주조하는 방법에 관한 것으로, 그 목적은 챠지별 슬래그를 분석하여 사전에 결정한 임계 염기도비를 기준으로 턴디쉬 플럭스의 첨가유무를 판단하면서 적량의 턴디쉬 플럭스를 투입하여 용강의 청정도를 확보할 수 있는 플럭스 투입방법을 제공하는 것이다.
      상기 목적을 달성하기 위한 본 발명은, 래들에 수용된 알루미늄 탈산 용강을 턴디쉬에 장입하고, 턴디쉬의 용강상부에 턴디쉬 플럭스를 도포하여 연속주조하는 방법에 있어서,
      챠지별 턴디쉬 슬래그 염기도(CaO/Al2O3)의 소모값을 측정하고 이를 관계식 1에 대입하여 임계염기도(Bc)를 계산하는 단계, 및
      [관계식 1]
      임계 염기도(Bc)=포집능 한계비+ 챠지당 염기도의 소모값
      여기서, 포집능 한계비는 CaO와 Al
      2 O
      3 가 안정한 화합물을 형성하는 중량비
      실제 조업에서 염기도(CaO/Al
      2 O
      3 )를 측정하고 측정된 염기도가 상기 임계 염기도 보다 작은 경우에는 턴디쉬 플럭스를 투입하여 턴디쉬 슬래그의 목표 염기도가 다음의 관계, Bc≤턴디쉬 슬래그의 목표 염기도≤Bc+챠지당 염기도의 소모값 × 남은 챠지수, 를 만족하도록 하는 것을 포함하여 이루어지는 청정강 제조를 위한 턴디쉬 플럭스의 투입방법에 관한 것을 그 기술요지로 한다.
      턴디쉬 플럭스, 염기도, 턴디쉬 슬래그, 청정강, CaO
    • 9. 发明公开
    • 완냉화 지수 및 몰드 최대 이동가속도를 이용한극저탄소강의 후크특성 예측방법
    • 使用软冷却指数和最大模具移动加速度预测缺陷的超低碳钢预测特性的方法
    • KR1020050002223A
    • 2005-01-07
    • KR1020030043583
    • 2003-06-30
    • 주식회사 포스코
    • 김성광이창현문호정최웅렬
    • B22D11/114
    • PURPOSE: To provide a method for minimizing hook defects generated by quantitatively deriving a correlation between various operation factors and characteristics of hook produced according to the operation factors, thereby improving the operation factors. CONSTITUTION: In a method for deriving characteristics of hook according to change of operation factors in a continuous casting process of ultra-low carbon steel, the method for predicting hook characteristics of ultra-low carbon steel using soft cooling index and the maximum mold moving acceleration comprises the step of simultaneously predicting hook growth length using moving acceleration and hook angle of a continuous casting mold and predicting hook growth length by introducing soft cooling index(CI) using discharge quantity, oscillation ratio and temperature difference, wherein the process of predicting hook growth length(Y) using moving acceleration and hook angle of the continuous casting mold is performed by using the following mathematical expression: Y=0.043X+21.94 wherein X is the maximum moving acceleration, and wherein the process of predicting hook growth length by introducing soft cooling index(CI) using discharge quantity, oscillation ratio and temperature difference is performed by calculating the soft cooling index(CI) by the following mathematical expression: CI=discharge quantityxoscillation ratio/temperature difference between molten steel over-solidified layers.
    • 目的:提供一种方法,通过定量推导各种操作因素与操作因素产生的钩的特性之间的相关性,最大限度地减少钩子缺陷,从而改善操作因素。 构成:在超低碳钢连续铸造工艺中根据操作因素变化导出钩的特性的方法,采用软冷却指数预测超低碳钢的钩特性和最大模移动加速度的方法 包括使用连续铸模的移动加速度和钩角同时预测钩生长长度的步骤,并且通过使用排放量,振荡比和温差引入软冷却指数(CI)来预测钩生长长度,其中预测钩生长的过程 使用以下数学表达式,使用移动加速度和连续铸造模具的钩角来确定长度(Y):Y = 0.043X + 21.94其中X是最大移动加速度,并且其中通过引入软件来预测钩生长长度的过程 冷却指数(CI)使用排放量,振荡比和温差i 通过以下数学表达式计算软冷却指数(CI)执行:CI =排出量螺旋比/钢水过度固化层之间的温差。
    • 10. 发明公开
    • 턴디쉬 및 이를 이용한 용강의 정련방법
    • 使用土耳其精炼冶炼钢的地层和方法
    • KR1020000027778A
    • 2000-05-15
    • KR1019980045804
    • 1998-10-29
    • 주식회사 포스코
    • 주상욱김웅래최웅렬김윤걸
    • B22D11/10
    • B22D11/118B22D11/108
    • PURPOSE: A refining method is provided to increase cleanness of melting steel inside a tundish by collecting a floated intervener on the surface of the melting steel. CONSTITUTION: A tundish installs a dam(41) on an inner bottom that is inside one fifth of the distance from the center of a shroud nozzle(11) of a ladle to a tundish nozzle. The dam forms a penetrating hole(42) in an upper direction from the center. Melting steel is injected into the tundish and when the melting steel fills up the half of the tundish, CaO-MgO grouped flux is input into the surface of the melting steel in o.74 to 1.0Kg per ton. Therefore, whole air amount of the melting steel is increased to 3 to 4ppm more than the present amount.
    • 目的:提供一种精炼方法,通过在熔融钢表面收集漂浮的干涉器来提高中间包内的熔融钢的清洁度。 构成:中间包在距离钢包的护罩喷嘴(11)的中心至中间包喷嘴的距离的五分之一左右的内底部安装一个水坝(41)。 坝从中心向上方形成穿孔(42)。 熔融钢被注入中间包,当熔化钢填满中间包的一半时,将CaO-MgO分组焊剂输入到熔炼钢的表面,以每吨0.74至1.0Kg的速度输入。 因此,熔融钢的全部空气量比目前量增加至3〜4ppm。