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公开(公告)号：KR100882122B1
公开(公告)日：2009-02-06
申请号：KR1020060123189
申请日：2006-12-06
Abstract: 염회특성이 확보된 고강도 교량용 강선을 제조하는 방법이 제공된다.
이 방법은 중량 %로 C : 0.8~1.0%, Si : 0.9~1.3%, Mn : 0.2~0.9%, Cr : 0.1~0.3%, S: 0.015%이하, P : 0.015%이하, 나머지 Fe 및 기타 불가피한 불순물로 조성된 선재를 1차 신선하는 단계;
상기 1차 신선된 선재를 LP열처리하는 단계;
상기 LP열처리된 선재를 2차 신선하는 단계;
상기 2차 신선된 선재를 아연도금하는 단계를 포함하여 이루어지고, 상기 1차 신선율은 상기 2차 신선율 이하인 것을 특징으로 한다.
고강도 교량용 강선, 염회특성, 신선가공, LP열처리, 풀 펄라이트(Full pearlite)조직-
公开(公告)号：KR101342116B1
公开(公告)日：2013-12-18
申请号：KR1020120072870
申请日：2012-07-04
Applicant: 고려제강 주식회사
CPC classification number: F16F1/021 , B32B15/015 , C23C18/1637 , C23C18/32 , C23C18/38 , C25D3/12 , C25D3/38 , C25D5/12 , C25D5/48 , C25D5/50 , C25D7/0607 , Y10T428/12937
Abstract: The present invention relates to a high carbon wire plated with nickel and copper for a spring. The high carbon wire plated with the nickel and the copper for the spring is characterized by passing through a drawing process after successively plating a nickel plating layer and a copper plating layer on the surface of a core wire formed with the high carbon wire.
Abstract translation: 本发明涉及一种用于弹簧镀镍和铜的高碳丝。 镀有镍和用于弹簧的铜的高碳丝的特征在于，在由高碳丝形成的芯线的表面上连续地镀覆镀镍层和镀铜层之后通过拉伸工艺。
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公开(公告)号：KR1020020036392A
公开(公告)日：2002-05-16
申请号：KR1020000066552
申请日：2000-11-09
Applicant: 고려제강 주식회사
IPC: C21D8/06
Abstract: PURPOSE: A steel wire used as a bead wire for automobile which not only maintains high strength and toughness but also represents a high elongation is provided, and a method for manufacturing the steel wire is provided. CONSTITUTION: In a steel wire comprising 0.4 to 0.65 wt.% of C, 0.1 to 1.0 wt.% of Si, 0.1 to 1.0 wt.% of Mn, 0.3 wt.% or less of Cr, 100 ppm(parts per million) or less of B and a balance of Fe and other inevitable impurities, wherein one or more elements selected from the group consisting of Ti, Nb and V is additionally contained in the steel wire in the amount range of 0.02 wt.% or less, and the structure of the steel wire comprises 10% or less of pro-eutectoid ferritic fraction and a balance of discontinuous pearlitic fraction, the high strength steel wire having a high elongation is characterized in that the steel wire is a bead wire for automobile that is continuously drawn by a series of dies which are adjusted to an approaching angle from a steel product to dies of 2α=7-9.5 degrees, a diameter of the final steel wire that is blowing heat treated to the temperature range of 490 to 560 deg.C is 1.6 mm or less, a salt patenting value 10d=28-36, an elongation is 5.0-8.2%, and a fraction of inner microvoids formed after drawing and blowing is 0.2% or less.
Abstract translation: 目的：提供一种用作汽车用胎圈丝的钢丝，其不仅保持高强度和韧性，而且还表现出高的伸长率，并且提供了制造钢丝的方法。 构成：在C：0.4〜0.65重量％，Si：0.1〜1.0重量％，Mn：0.1〜1.0重量％，Cr：0.3重量％以下，0.1ppm以下的钢丝中， 或更少的B和余量的Fe和其他不可避免的杂质，其中选自Ti，Nb和V中的一种或多种元素额外含量在0.02重量％以下的量的范围内，以及 钢丝的结构包括10％或更少的共析共析铁素体部分和不连续的珠光体组分的平衡，具有高伸长率的高强度钢丝的特征在于，钢丝是连续地用于汽车的胎圈丝 通过一系列模具拉制，该模具被调整为从钢制品到2α= 7-9.5度的模具的接近角度，将最终钢丝的直径吹发热处理至490-560℃的温度范围 为1.6mm以下，盐专利值10d = 28-36，伸长率为5.0〜8.2％ 拉伸吹制后形成的内微孔的含量为0.2％以下。
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公开(公告)号：KR1020170096413A
公开(公告)日：2017-08-24
申请号：KR1020160017757
申请日：2016-02-16
Applicant: 고려제강 주식회사
Abstract: 본발명은클래드강선및 그제조방법에관한발명으로, 강선의표면을플라즈마(plasma) 가열처리하는제 1단계, 제 1단계를거친강선을스트립(strip) 상태의클래드(clad) 부재와클래딩(cladding) 처리하는제 2단계, 제 2단계를거친클래드강선을플라즈마가열처리하는제 3단계, 제 3단계를거친클래드강선을압연롤을이용하여열간압연(hot rolling) 가공하는제 4단계및 제 4단계를거친클래드강선을신선기를이용하여신선(wire drawing) 가공하는제 5단계를포함하는것을특징으로한다. 이러한특징으로인해강선과클래드부재의접합성을향상시켜내식성이우수한강선을제작할수 있다.
Abstract translation: 本发明包钢线，并且本发明涉及一种制造其的方法，该钢丝等离子体（等离子体）加热第一步骤中的表面上，钢丝经受第一步骤中的条带（条带）的包层（包层）不存在的条件下，所述包层（ 包层）过程的第二步骤中，使用所述第三步骤的所述第四步骤中，通过以下步骤通过包覆钢线的轧辊等离子体热处理通过处理所述热轧（热轧的步骤通过包钢线）和 以及第五步，使用拉伸机对经过四个步骤的复合钢丝进行拉丝。 根据该特征，能够提高钢线与包层部件的接合性，制造耐腐蚀性优异的钢线。
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Patent Agency Ranking
公开(公告)号：KR101597756B1
公开(公告)日：2016-02-25
申请号：KR1020140135126
申请日：2014-10-07
Applicant: 고려제강 주식회사
Abstract: 본발명은응력부식특성이우수한고강도 PC 강연선에관한것이다. 이러한고강도 PC 강연선은, 하나의중심선에여섯개의외층선을꼬아져이루어지는 PC 강연선에있어서, 상기중심선및 상기외층선은 C: 0.9 ~ 1.2 중량%, Mn: 0.4 ~ 0.7 중량%, Si: 1.0 ~ 1.5 중량%, Cr: 0.4~0.7 중량%, S: 0.01 중량% 이하(0%를포함하지않음), P: 0.01 중량% 이하(0%를포함하지않음)과나머지는 Fe 및불가피한불순물을포함한고탄소강으로이루어지고, 상기강연선의표면에서적어도 10㎛의깊이까지구상화조직층을갖는것을특징으로한다.
Abstract translation: 本发明涉及一种耐应力腐蚀性优异的高强度预应力股。 由于第六外线在中心线上扭转，所以形成高强度预应力绳。 中心线和外线由高碳钢，由C：0.4-1.2重量％，Mn：0.4-0.7重量％，Si：1.0-1.5重量％，Cr：0.4-0.7重量％，Cr：0.01重量％组成 ％以下的S（不含0％），0.01重量％以下的P（不含0％），余量由Fe构成，不可避免。 球状表面形成球状组织层至深度10μm。
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16.发明公开응력부식특성이 우수한 니켈도금 고강도 ＰＣ 강선과 ＰＣ 강연선의 제조방법 및 이를 이용해 제조된 ＰＣ 강선 및 ＰＣ 강연선 有权用于制造具有高应力腐蚀特性的预应力钢丝和预应力钢筋的Methof及使用该预应力钢丝的预应力钢丝和摔跤绳
公开(公告)号：KR1020150028406A
公开(公告)日：2015-03-16
申请号：KR1020130106817
申请日：2013-09-05
Applicant: 고려제강 주식회사
Abstract: 본 발명은 응력부식특성이 우수한 니켈도금 고강도 PC 강선의 제조방법에 관한 것이다. 본 방법은, C: 0.95 ~ 1.1 중량%, Si: 1.1 ~ 1.5 중량%, Mn: 0.4 ~ 0.6 중량%, Cr: 0.4~0.6 중량%, S: 0.015 중량% 이하(0%를 포함하지 않음), P: 0.015 중량% 이하(0%를 포함하지 않음)과 나머지는 Fe 및 불가피한 불순물을 포함한 고탄소강을 인발 신선한 후에 권취기에 권선하기 전에 니켈도금하고 인장강도를 2400MPa 이상으로 제조하는 것을 특징으로 한다.
Abstract translation: 本发明涉及一种具有高应力腐蚀特性的镀镍高强度预应力丝的制造方法。 高碳钢包括：0.95-1.1重量％的C; 1.1-1.5重量％的Si; 0.4-0.6重量％的Mn; 0.4-0.6重量％的Cr; 0.015％以下（不含0％）S; 0.015％以下（不含0％）P; 余量如Fe和不可避免的杂质。 高碳钢在拉伸后用镍电镀，并且在缠绕在卷绕装置上之前以不低于2400MPa的拉伸强度制造。
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公开(公告)号：KR1020140046657A
公开(公告)日：2014-04-21
申请号：KR1020120112102
申请日：2012-10-09
Applicant: 고려제강 주식회사
CPC classification number: C22C38/18 , C22C38/02 , C22C38/04 , D07B1/0693 , D07B2201/2006 , D07B2201/2023 , D07B2201/2051 , D07B2205/3057 , D07B2501/203 , D07B2801/10 , D07B2801/12
Abstract: A plated strand according to the present invention, for a plated strand comprising multiple wires, comprises a center wire and multiple side wires connected to the outside of the center wire. The center wire and the wires composes of 0-9-1.2 wt% of C, 0.4-0.7 wt% of Mn, 1.0-1.5 wt% of Si, 0.4-0,7 wt% of Cr, 0.01% or less of P, 0.01% or less of S, the rest of Fe, and other unavoidable impurities.
Abstract translation: 根据本发明的电镀线，用于包括多条电线的电镀线，包括连接到中心线外部的中心线和多条侧线。 中心线和电线由C组成：0-9-1.2重量％，Mn：0.4-0.7重量％，Si：1.0-1.5重量％，Cr：0.4-0.7重量％，P：0.01％ ，0.01％以下的S，余量的Fe等不可避免的杂质。
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公开(公告)号：KR1020050005918A
公开(公告)日：2005-01-15
申请号：KR1020030045827
申请日：2003-07-07
Applicant: 고려제강 주식회사 , 키스와이어 에스디엔 비에이치디
IPC: B21F99/00
Abstract: PURPOSE: To provide a steel wire for pre-stressed concrete cylinder pipes in which the state of surface residual stress imparted to the surface of the steel wire is changed to restrain formation of cracks on the surface of the steel wire and lower transmission speed of cracks formed on the surface of the steel wire at the same time, and a method for manufacturing the steel wire for pre-stressed concrete cylinder pipes. CONSTITUTION: In a method for manufacturing a steel wire for pre-stressed concrete cylinder pipes comprising a pretreatment process, and cold wire drawing and coiling processes consisted of multiple steps, the method for manufacturing a steel wire with superior stress corrosion cracking resistance for pre-stressed concrete cylinder pipes is characterized in that shot blasting is carried out on the surface of a steel wire proceeded on a proceeding course between a final cold wire drawing dies(11) and a coiler(12), wherein the shot blasting is performed by projecting shot balls or shot grits in an amount of 20 to 200 kg/min at a speed of 30 to 90 m/sec for 0.1 to 10 seconds, wherein the shot balls have a hardness of 40 to 70 HRC and diameter corresponding to 1 to 20% of diameter of a steel wire(W) to be shot blasted, and wherein the shot blasting is executed by at least 3 or more shot ball projection nozzles(N1-N4).
Abstract translation: 目的：提供一种预应力混凝土筒管的钢丝，其中赋予钢丝表面的表面残余应力状态发生变化，以抑制钢丝表面的裂缝形成，降低裂纹传播速度 同时形成在钢丝网的表面上，以及制造预应力混凝土筒管的钢丝绳的方法。 构成：在制造预应力混凝土筒管钢丝的方法中，包括预处理工艺，冷丝拉丝和卷取方法由多个步骤组成，制造具有优异的抗应力腐蚀开裂性的钢丝的方法， 应力混凝土圆筒管的特征在于，在最终的冷拉丝模具（11）和卷取机（12）之间的进行过程中在钢丝网的表面上进行喷丸处理，其中通过突出 以20〜200kg / min的速度以30〜90m /秒的速度进行0.1〜10秒的射出球或喷丸，其中，所述球丸的硬度为40〜70HRC，直径为1〜20 要喷丸的钢线（W）的直径的百分比，其中通过至少3个以上的射出球投影喷嘴（N1-N4）执行喷丸处理。
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公开(公告)号：KR100366211B1
公开(公告)日：2003-01-30
申请号：KR1020000066552
申请日：2000-11-09
Applicant: 고려제강 주식회사
IPC: C21D8/06
Abstract: PURPOSE: A steel wire used as a bead wire for automobile which not only maintains high strength and toughness but also represents a high elongation is provided, and a method for manufacturing the steel wire is provided. CONSTITUTION: In a steel wire comprising 0.4 to 0.65 wt.% of C, 0.1 to 1.0 wt.% of Si, 0.1 to 1.0 wt.% of Mn, 0.3 wt.% or less of Cr, 100 ppm(parts per million) or less of B and a balance of Fe and other inevitable impurities, wherein one or more elements selected from the group consisting of Ti, Nb and V is additionally contained in the steel wire in the amount range of 0.02 wt.% or less, and the structure of the steel wire comprises 10% or less of pro-eutectoid ferritic fraction and a balance of discontinuous pearlitic fraction, the high strength steel wire having a high elongation is characterized in that the steel wire is a bead wire for automobile that is continuously drawn by a series of dies which are adjusted to an approaching angle from a steel product to dies of 2α=7-9.5 degrees, a diameter of the final steel wire that is blowing heat treated to the temperature range of 490 to 560 deg.C is 1.6 mm or less, a salt patenting value 10d=28-36, an elongation is 5.0-8.2%, and a fraction of inner microvoids formed after drawing and blowing is 0.2% or less.
Abstract translation: 目的：提供一种用作汽车用胎圈钢丝的钢丝，该钢丝不仅保持了高强度和高韧性，而且具有高延伸率，并提供了一种制造钢丝的方法。 本发明涉及一种在含有0.4-0.65重量％的C，0.1-1.0重量％的Si，0.1-1.0重量％的Mn，0.3重量％或更少的Cr，100ppm（百万分之一） 或更少的B和余量的Fe和其它不可避免的杂质，其中在钢丝中额外地包含0.02重量％或更少的量的选自Ti，Nb和V的一种或多种元素，以及 钢丝的组织中含有10％以下的先共析铁素体组分和余量的不连续的珠光体组分，高伸长高强度钢丝的特征在于钢丝是连续的汽车用胎圈钢丝 通过一系列模具进行拉伸，所述一系列模具被调整到从钢制品到2π= 7-9.5度的模具的接近角度，将经过热处理的最终钢丝直径的温度范围调整到490至560 ℃是1.6mm或更小，盐的专利价值10d = 28-36，延伸率是5.0-8.2％ 并且在拉伸和吹塑后形成的内部微孔的一部分为0.2％或更少。
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