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    • 4. 发明授权
    • 슬러리 부식마모 시험장치
    • 水泥浆体腐蚀腐蚀试验装置
    • KR101439751B1
    • 2014-09-11
    • KR1020130025197
    • 2013-03-08
    • 주식회사 포스코
    • 고성웅박연정김한규
    • G01N17/02
    • G01N17/002G01N1/36G01N3/56G01N2203/0037
    • A device to perform a corrosion and wear test in a slurry comprises: a chamber in which slurry is stored; and a driving part capable of rubbing a test piece mounted to measure the corrosion and wear of the test piece caused by the slurry with the slurry by rotating the test piece in the slurry of the chamber, and adjusting an angle collided with the slurry particles. The present invention rubs the test piece with the slurry by rotating the test piece in the slurry of the chamber, and enables to control the angle collided with the slurry particles since one surface of the test piece forms a preset angle to the tangential direction of a concentric rotation circle in a rotational direction in accordance to the test conditions. Also, the present invention can prevent the edge of the test piece from being eccentrically corroded and worn since a fixing holder holds the test piece in a state of surrounding the edge of the test piece. Moreover, the present invention can control the slurry of the chamber to be at a set temperature while having a preset oxygen concentration in the corrosion, and wear test conditions using a temperature control part and a gas control part. Accordingly, the present invention can accurately and easily measure the corrosion and wear characteristics of the materials in a slurry environment in which an abrasive is mixed with fluid.
    • 在浆料中进行腐蚀和磨损试验的装置包括:储存浆料的室; 以及驱动部,其能够摩擦安装的试验片,以通过将试验片旋转到腔室的浆料中,测量由浆料与浆料引起的腐蚀和磨损,并调节角度与浆料颗粒碰撞。 本发明通过在室的浆料中旋转试验片来将试样与浆料摩擦,并且能够控制与浆料颗粒碰撞的角度,因为试件的一个表面与a的切线方向成预设角度 根据试验条件沿旋转方向的同心旋转圆。 此外,本发明可以防止测试件的边缘偏心地被腐蚀和磨损,因为固定夹持器将测试件保持在围绕测试件的边缘的状态。 此外,本发明可以使用温度控制部分和气体控制部分在腐蚀和磨损试验条件下具有预设的氧浓度来控制室的浆料处于设定温度。 因此,本发明可以准确且容易地测量其中磨料与流体混合的浆料环境中的材料的腐蚀和磨损特性。
    • 6. 发明公开
    • 내마모성이 우수한 오일샌드 슬러리 파이프용 강판 및 그 제조방법
    • 具有优异耐磨性的油砂浆运输系统的钢板及其制造方法
    • KR1020120070165A
    • 2012-06-29
    • KR1020100131599
    • 2010-12-21
    • 주식회사 포스코
    • 고성웅박연정
    • C22C38/00C21D8/02C22C38/38
    • C22C38/001C21D8/0226C21D9/08C21D2211/005C21D2211/009C22C38/02C22C38/04C22C38/06
    • PURPOSE: A steel plate with superior abrasion resistance for an oil sand slurry pipe and a manufacturing method thereof are provided to obtain a steel plate able to be made into an anti-abrasive oil sand slurry pipe through control of ferritic component system and microstructure. CONSTITUTION: A steel plate with superior abrasion resistance for an oil sand slurry pipe comprises C of 0.2-0.35 weight%, Si of 0.1-0.5 weight%, Mn of 0.5-1.8 weight%, P of 0.03 weight% or less, S of 0.03 weight% or less, Al of 0.05 weight% or less, N of 0.01 weight% or less, Cr of 1.5 weight% or less, and Fe and other inevitable impurities of the remaining amount, wherein the total contents of Mn and Cr is 2% or less. In the steel plate, the interval between pearlite grains is 200μm or less and the vickers hardness is 180-220Hv.
    • 目的:提供一种用于油砂浆管的具有优异耐磨性的钢板及其制造方法,以通过控制铁素体组分体系和微结构获得能够制成耐磨油砂浆管的钢板。 构成:对于油砂浆管,具有优异耐磨性的钢板包含C为0.2-0.35重量%,Si为0.1-0.5重量%,Mn为0.5-1.8重量%,P为0.03重量%以下,S为 0.03重量%以下,Al为0.05重量%以下,N为0.01重量%以下,Cr为1.5重量%以下,Fe等残留量的不可避免的杂质,Mn和Cr的总含量为 2%以下。 在钢板中,珠光体颗粒之间的间隔为200μm以下,维氏硬度为180〜220Hv。
    • 8. 发明公开
    • 저온인성 및 수소유기균열 저항성이 우수한 강재 및 그 제조방법
    • 具有优异的低温韧性和氢诱发的耐破裂性及其制造方法的钢
    • KR1020160075900A
    • 2016-06-30
    • KR1020140184309
    • 2014-12-19
    • 주식회사 포스코
    • 강주석고성웅배무종박재현
    • C22C38/44C22C38/48C22C38/50C21D8/00
    • C22C38/48C21D8/00C22C38/50
    • 본발명은탄소(C): 0.03~0.05중량%, 실리콘(Si): 0.05~1.0중량%, 망간(Mn): 1.0~1.4중량%, 인(P): 0.010중량% 이하, 황(S): 0.0020중량% 이하, 알루미늄(Al): 0.005~0.1중량%, 구리(Cu): 0.1~0.3중량%, 니켈(Ni): 0.1~0.5중량%, 크롬(Cr): 0.05~0.3중량%, 몰리브덴(Mo): 0.02~0.3중량%, 니오븀(Nb): 0.03~0.055중량%, 티타늄(Ti): 0.01~0.02중량%, 바나듐(V): 0.02~0.06중량%, 칼슘(Ca): 0.0005~0.003중량%, 질소(N): 0.001~0.01중량%, 나머지철(Fe) 및기타불가피한불순물을포함하는저온인성과수소유기균열저항성이우수한강재및 그제조방법에관한것이다.
    • 本发明涉及具有优异的低温韧性和氢诱发的抗裂性的钢材,其包含:0.03-0.05重量%的碳(C); 0.05-1.0重量%的硅(Si); 1.0-1.4重量%的锰(Mn); 磷(P)为0.010重量%以下。 0.0020重量%以下的硫(S); 0.005-0.1重量%的铝(Al); 0.1-0.3重量%的铜(Cu),0.1-0.5重量%的镍(Ni); 0.05-0.3重量%的铬(Cr); 0.02-0.3重量%的钼(Mo); 0.03-0.055重量%的铌(Nb); 0.01-0.02重量%的钛(Ti); 0.02-0.06重量%的钒(V); 0.0005-0.003重量%的钙(Ca); 0.001-0.01重量%的氮(N); 其余由铁(Fe)和不可避免的杂质组成,其制造方法。 本发明的目的是提供具有优异的低温韧性和耐氢诱导的耐开裂性的钢材及其制造方法。