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
    • 4. 发明申请
    • THE METHOD FOR MANUFACTURING THIN STEEL SHEET FOR DEEP DRAWING HAVING EXCELLENT WORKABILITY
    • 制造具有良好工作性能的深层薄钢板的方法
    • WO2008078901A1
    • 2008-07-03
    • PCT/KR2007006628
    • 2007-12-18
    • POSCOKANG HEE JAECHIN KWANG GEUNSOHN IL RYOUNG
    • KANG HEE JAECHIN KWANG GEUNSOHN IL RYOUNG
    • C21D8/02
    • C21D9/48C21D8/0426C21D8/0436C21D8/0463C21D8/0473C23C2/02C23C2/06C23C2/28
    • There is provided a method for manufacturing a thin steel sheet for deep drawing having excellent workability that is generally used for inner and outer panels of an automobile body. A method includes reheating steel slabs containing, by weight%, C: 0.010% or less, Si: 0.4% or less, Mn: 0.06-1.5%, P: 0.03-0.15%, S: 0.020% or less, Sol. Al: 0.40% or less, N: 0.010% or less, Ti: 0.003-0.05%, Nb: 0.003-0.05%, Mo: 0.10% or less, B: 0.0002-0.0030%, one or both of Sb: 0.005-0.10% and Sn: 0.005-0.10%, the balance Fe, and unavoidable impurities, completing finish rolling the reheated steel slabs at the single phase austenite region while a reduction ratio of rough rolling and finish rolling is in the range of 1.0 (50%:50%)-4.0 (80%:20%), and strip- cooling rate of final three pass is 30°C/sec or more during finish rolling, coiling the finish rolled steel sheet, cold rolling the coiled hot-rolled steel sheet at a cold rolling reduction ratio of 60% or more, and continuously annealing the cold-rolled steel sheet at a temperature of a range of 780-8600C, in which the average size of precipitates satisfies 20-60 nm. As described above, according to the embodiment of the present invention, it is possible to provide a thin steel sheet for deep drawing having tensile strength of 28-50 kg/mm and more excellent workability and galvanizing properties than a thin steel sheet for deep drawing according to the related art.
    • 提供一种用于制造用于深冲压的薄钢板的方法,该方法通常用于汽车车身的内外板。 一种方法包括以重量%计含有C:0.010%以下,Si:0.4%以下,Mn:0.06〜1.5%,P:0.03〜0.15%,S:0.020%以下的钢坯。 Al:0.40%以下,N:0.010%以下,Ti:0.003〜0.05%,Nb:0.003〜0.05%,Mo:0.10%以下,B:0.0002〜0.0030%,Sb:0.005〜 0.10%,Sn:0.005〜0.10%,余量为Fe和不可避免的杂质,在单相奥氏体区域中完成对再热钢坯的精轧,而粗轧和精轧的压下率在1.0(50% :50%) - 4.0(80%:20%),最终三遍的剥离冷却速度在精轧过程中为30℃/秒以上,卷取精轧钢板,冷轧卷取的热轧钢 在冷轧压下率为60%以上的条件下,在780〜8600℃的范围内连续退火冷却钢板,其中析出物的平均粒径为20〜60nm。 如上所述,根据本发明的实施方式,能够提供拉伸强度为28〜50kg / mm的深拉伸用薄钢板和与深冲的薄钢板相比具有更优异的加工性和镀锌性 根据现有技术。
    • 5. 发明申请
    • HIGH STRENGTH THIN STEEL SHEET EXCELLING IN WELDABILITY AND PROCESS FOR PRODUCING THE SAME
    • 高强度钢板在焊接性能及其制造方法中的应用
    • WO2009084795A1
    • 2009-07-09
    • PCT/KR2008/004627
    • 2008-08-08
    • POSCOKANG, Hee JaeOH, Jin KeunCHIN, Kwang GeunKIM, Jong Sang
    • KANG, Hee JaeOH, Jin KeunCHIN, Kwang GeunKIM, Jong Sang
    • C22C38/00
    • C22C38/38C22C38/06C22C38/32C22C38/60
    • Provided are a high strength thin steel sheet having tensile strength of about 800 MPa or more, and a manufacturing method thereof. The thin steel sheet is mainly used for construction materials, home appliances, and automobiles. The thin steel sheet has excellent plating char¬ acteristic, welding characteristic, bending workability, and hole expansion ratio. The thin steel sheet includes, in weight %, C: 0.02-0.20%, Si: 1.5% or less, Mn: 1.5-3.0%, P: 0.001-0.10%, S: 0.010% or less, SoLAl: 0.01-0.40%, N: 0.020% or less, Cr: 0.3-1.5%, B: 0.0010-0.0060%, Sb: 0.001-0.10%, and including at least one material selected from the group consisting of Ti: 0.003-0.08%, Nb: 0.003-0.08%, and Mo: 0.003-0.08%, and includes Fe and other inevitable impurities as a remainder. Here, Si, Mn, B, Sb, P, and S meet conditions of 5
    • 本发明提供一种拉伸强度为约800MPa以上的高强度薄钢板及其制造方法。 薄钢板主要用于建筑材料,家用电器和汽车。 薄钢板具有优异的电镀特性,焊接特性,弯曲加工性和孔膨胀率。 该薄钢板以重量%计含有C:0.02-0.20%,Si:1.5%以下,Mn:1.5-3.0%,P:0.001-0.10%,S:0.010%以下,SoLAl:0.01-0.40 %,N:0.020%以下,Cr:0.3〜1.5%,B:0.0010〜0.0060%,Sb:0.001-0.10%,并且包括选自Ti:0.003-0.08%,Nb :0.003-0.08%,Mo:0.003-0.08%,其余为Fe等不可避免的杂质。 这里,Si,Mn,B,Sb,P和S满足5 <(Si / Mn + 150B)/ Sb <20和C + Mn / 20 + Si / 30 + 2P + 4S <0.27的条件。 此外,制造方法可以确保薄钢板的可加工性。