-
1.发明授权
公开(公告)号：US4374682A
公开(公告)日：1983-02-22
申请号：US195654
申请日：1980-10-09
CPC分类号： C21D9/48 , C21D8/0473 , C21D8/0426 , C21D9/52
摘要： A process for producing a cold rolled steel strip having excellent workability by a short-time continuous annealing, which process is constituted by hot rolling a low carbon steel slab of steel having a carbon content of from about 0.003 to 0.08% into a steel strip; cold rolling the hot rolled steel strip; rapidly heating the cold rolled steel strip to a recrystallization temperature range at a heating rate not less than 40.degree. C./second; slowly heating the thus rapidly heated steel strip to an annealing temperature at a heating rate ranging from 5.degree. to 30.degree. C./second; annealing the thus slowly heated steel strip at an annealing temperature T which is no lower than 700.degree. C. and no higher than the A.sub.3 transformation temperature and for an annealing time t no shorter than [8-0.03 (T-680)] seconds and no longer than [80-0.15 (T-680)] seconds, initially slowly cooling the thus annealed steel strip at a cooling rate less than 50.degree. C./second, and then rapidly cooling the strip at a cooling rate not less than 50.degree. C./second from a temperature T.sub.Q ranging from higher than 600.degree. C. to no higher than [T-0.027 (T-680)(.sqroot.t+23.7)].degree. C. to an over-ageing temperature range; and subjecting the thus cooled steel strip to an over-ageing treatment at a temperature ranging from 300.degree. to 500.degree. C. for a period of time ranging from 10 seconds to 5 minutes.
摘要翻译： 一种通过短时间连续退火制造具有优异加工性的冷轧钢带的方法，该方法通过将碳含量为约0.003至0.08％的钢的低碳钢板坯热轧到钢带中而构成; 冷轧热轧钢带; 以不低于40℃/秒的加热速率将冷轧钢带快速加热至重结晶温度范围; 将这样快速加热的钢带缓慢加热至退火温度，加热速率范围为5℃至30℃/秒; 在不低于700℃，不高于A3转化温度的退火温度T和不低于[8-0.03（T-680）]秒的退火时间t退火如此缓慢加热的钢带，并且 不超过[80-0.15（T-680）]秒，最初以低于50℃/秒的冷却速率缓慢地冷却由此退火的钢带，然后以不小于50的冷却速率快速冷却带材 从高于600℃至不高于[T-0.027（T-680）（2ROOT t + 23.7）]℃的温度TQ至过老化温度范围; 并将这样冷却的钢带在300℃至500℃的温度范围内进行过时效处理10秒至5分钟的时间。
-
公开(公告)号：US5256202A
公开(公告)日：1993-10-26
申请号：US752628
申请日：1991-08-23
申请人： Toshihiro Hanamura , Munetsugu Matsuo , Toshiaki Mizoguchi , Kenichi Miyazawa , Masao Kimura , Naoya Masahashi
发明人： Toshihiro Hanamura , Munetsugu Matsuo , Toshiaki Mizoguchi , Kenichi Miyazawa , Masao Kimura , Naoya Masahashi
CPC分类号： C22C14/00 , B22D11/0622 , B22D11/0697 , C22C21/00
摘要： The present invention provides a Ti--Al intermetallic compound sheet of a thickness in the range of 0.25 to 2.5 mm formed of a Ti--Al intermetallic compound of 40 to 53 atomic percent of Ti, 0.1 to 3 atomic percent of at least one of material selected from the group consisting of Cr, Mn, V and Fe, and the balance of Al, and a Ti--Al intermetallic compound sheet producing method comprising the steps of pouring a molten Ti--Al intermetallic compound of the foregoing composition into the mold of a twin drum continuous casting machine, casting and rapidly solidifying the molten Ti--Al intermetallic compound to produce a thin cast plate of a thickness in the range of 0.25 to 2.5 mm and, when necessary, subjecting the thin cast plate to annealing and HIP treating. The Ti--Al intermetallic compound sheet has excellent mechanical and surface properties.
摘要翻译： PCT No.PCT / JP90 / 01691 Sec。 371日期1991年8月23日 102（e）日期1991年8月23日PCT 1990年12月25日PCT PCT。 出版物WO91 / 09697 日本1991年7月11日。本发明提供了由Ti-Al金属间化合物形成的厚度在0.25〜2.5mm范围内的Ti-Al金属间化合物片，其含量为40〜53原子％的Ti，0.1〜3原子 选自Cr，Mn，V和Fe中的至少一种材料的余量以及Al的余量以及Ti-Al金属间化合物片材的制造方法，包括以下步骤：将熔融的Ti-Al金属间化合物 将上述组成进入双滚筒连续铸造机的模具中，铸造并使熔融的Ti-Al金属间化合物快速固化，以产生厚度在0.25至2.5mm范围内的薄铸造板，并且当需要时，使薄的 铸钢板进行退火和HIP处理。 Ti-Al金属间化合物片具有优异的机械和表面性能。
-
3.发明授权Dual-purpose plant for producing cold rolled steel sheet and hot-dip galvanized steel sheet 失效用于生产冷轧钢板和热浸镀锌钢板的双用途设备
公开(公告)号：US4408561A
公开(公告)日：1983-10-11
申请号：US295316
申请日：1981-08-24
摘要： A dual-purpose production plant for cold rolled steel sheets and hot-dip galvanized steel sheets having, successively disposed in series, a heating zone, a soaking zone, a primary cooling zone, an overaging zone equipped with a controlled cooling facility, a molten galvanizing zone, an intermediate cooling means, a secondary cooling zone, a temper rolling means, and a chemical treatment means, and a bypass for directly connecting the overaging zone and the secondary cooling zone with each other.
摘要翻译： 一种用于冷轧钢板和热浸镀锌钢板的双用途生产设备，其依次是串联设置有加热区，均热区，初级冷却区，配备受控冷却设备的过饱和区，熔融 镀锌区，中间冷却装置，二次冷却区，回火轧制装置和化学处理装置，以及用于将过滤区域和二次冷却区域直接连接的旁路。
-
4.发明授权
公开(公告)号：US5648045A
公开(公告)日：1997-07-15
申请号：US646650
申请日：1996-05-03
摘要： TiAl-based intermetallic compound alloys contain chromium and consist essentially of a dual-phase microstructure of .gamma. and .beta. phases, with the .beta. phase precipitating at .gamma. grain boundaries. The .beta. phase precipitating at .gamma. grain boundaries is 2% to 25% by volume fraction. A process for preparing TiAl-based intermetallic compound alloys comprises the steps of preparing a molten TiAl-based intermetallic compound alloy of a desired composition, solidifying the molten alloy, homogenizing the solidified alloy by heat treatment, and thermomechanically working the homogenized alloy.
摘要翻译： TiAl基金属间化合物合金含有铬，并且基本上由γ相和β相的双相显微组成，β相在γ晶界处析出。 γ晶界析出的β相为2％至25％体积分数。 一种制备TiAl基金属间化合物合金的方法包括以下步骤：制备具有所需组成的熔融TiAl基金属间化合物合金，使熔融合金固化，通过热处理均化凝固合金，并对均质合金进行热机械加工。
-
公开(公告)号：US5370839A
公开(公告)日：1994-12-06
申请号：US907363
申请日：1992-07-01
摘要： TiAl-besed intermetallic compound alloys contain chromium and consist essentially of a dual-phase microstructure of .gamma. and .beta. phases, with the .beta. phase precipitating at .gamma. grain boundaries. The .beta. phase precipitating at .gamma. grain boundaries is 2% to 25% by volume fraction. A process for preparing TiAl-based intermetallic compound alloys comprises the steps of preparing a molten TiAl-based intermetallic compound alloy of a desired composition, solidifying the molten alloy, homogenizing the solidified alloy by heat treatment, and thermomechanically working the homogenized alloy.
摘要翻译： TiAl包覆的金属间化合物合金含有铬并且基本上由γ相和β相的双相显微组成，β相在γ晶界处析出。 γ晶界析出的β相为2％至25％体积分数。 一种制备TiAl基金属间化合物合金的方法包括以下步骤：制备具有所需组成的熔融TiAl基金属间化合物合金，使熔融合金固化，通过热处理均化凝固合金，并对均质合金进行热机械加工。
-
6.发明授权.gamma. and .beta. dual phase TiAl based intermetallic compound alloy having superplasticity 失效具有超塑性的γ和β双相TiAl基金属间化合物合金
公开(公告)号：US5232661A
公开(公告)日：1993-08-03
申请号：US742846
申请日：1991-08-08
申请人： Munetsugu Matsuo , Naoya Masahashi , Keizo Hashimoto , Toshihiro Hanamura , Hideki Fujii , Masao Kimura , Youji Mizuhara , Hiroo Suzuki
发明人： Munetsugu Matsuo , Naoya Masahashi , Keizo Hashimoto , Toshihiro Hanamura , Hideki Fujii , Masao Kimura , Youji Mizuhara , Hiroo Suzuki
CPC分类号： C22C14/00
摘要： This invention relates to TiAl based intermetallic compound alloy and process for producing; the object of this invention is to improve high temperature deformability. The alloy comprises basic components: Ti.sub.y AlCr.sub.x, wherein 1%.ltoreq.X.ltoreq.5%, 47.5%.ltoreq.Y.ltoreq.52%, and X+ 2Y.gtoreq.100%, and comprises a fine-grain structure with a .beta. phase precipitated on a grain boundary of equiaxed .gamma. grain having grain size of less than 30 .mu.m, and possessing a superplasticity such that the strain rate sensitivity factors (m value) is 0.40 or more and tensile elongation is 400% or more tested at 1200.degree. C. and a strain rate of 5.times.10.sup.-4 S.sup.-1.
摘要翻译： 本发明涉及TiAl基金属间化合物合金及其制造方法。 本发明的目的是提高高温变形性。 该合金包括碱性组分：TiyAlCrx，其中1％，X = 5％，47.5％，Y = 52％，X + 2Y> / = 100％，并且包括具有 在晶粒尺寸小于30μm的等轴γ晶粒的晶界上析出β相，并且具有超塑性，使得应变速率敏感性因子（m值）为0.40以上，拉伸伸长率为400％以上 在1200℃，应变速率为5×10 -4 S -1。
-
7.发明授权
公开(公告)号：US4070208A
公开(公告)日：1978-01-24
申请号：US756423
申请日：1977-01-03
CPC分类号： C21D8/0405
摘要： A slab or ingot of ferritic stainless steel for deep drawing applications is subjected to hot rolling, coiled at 450.degree. to 750.degree. C, subjected to warm rolling without cooling the coil by a rolling mill installed separately from the hot strip rolling mill, subjected to continuous annealing, and subjected to cold rolling and final annealing.
摘要翻译： 用于深拉伸应用的铁素体不锈钢板或锭经受热轧，在450℃至750℃下卷绕，进行温轧，而不用与热轧轧机分开安装的轧机冷却盘管， 连续退火，并进行冷轧和最终退火。
-
公开(公告)号：US4563226A
公开(公告)日：1986-01-07
申请号：US442084
申请日：1982-11-16
CPC分类号： C21D8/1227
摘要： Conventionally, the silicon content of a grain-oriented electrical steel is approximately 3% at the maximum, since cold-rolling is difficult if the silicon content is high. Although conventional warm-rolling can occasionally mitigate the poor workability of a silicon steel having a high silicon content, it is impossible to control the texture of a cold-rolled strip and to completely prevent brittleness.The present invention provides a novel rolling method in which, due to the heating of a steel strip prior to the carrying out of cold-rolling, a desirable texture can be formed and rupture of the cold-rolled strip can be prevented. The strip is heated to within a temperature range, in which both the minimum temperature which is at least 200.degree. C. and at least equal to T.sub.L (.degree.C.)=(x-3.0).sup.2 .times.100, x being the silicon content in weight percent, and the maximum temperature which temperature range being is not more than 400.degree. C. and not more than T.sub.H (.degree.C.)=-200.times.log (1/y), y being the strain rate (second.sup.-1) during the cold rolling are determined so as to satisfy the temperature of the first cold rolling pass.
摘要翻译： 通常，晶粒取向电工钢的硅含量最大为3％左右，因为如果硅含量高，则难以进行冷轧。 虽然常规的热轧可以偶尔减轻硅含量高的硅钢的可加工性差，但是不可能控制冷轧带材的质地并且完全防止脆性。 本发明提供一种新的轧制方法，其中由于在进行冷轧之前对钢带进行加热，可以形成所需的组织，并且可以防止冷轧带材的断裂。 将条带加热到温度范围内，其中最低温度至少为200℃，至少等于TL（℃）=（x-3.0）×2x100，x为重量的硅含量 百分比，该温度范围的最高温度不超过400℃，不大于TH（℃）= - 200xlog（1 / y），y为冷时的应变速率（秒-1） 确定轧制以满足第一冷轧道次的温度。
-
公开(公告)号：US4376661A
公开(公告)日：1983-03-15
申请号：US048587
申请日：1979-06-13
申请人： Hiroshi Takechi , Munetsugu Matsuo , Kazuo Koyama
发明人： Hiroshi Takechi , Munetsugu Matsuo , Kazuo Koyama
CPC分类号： C22C38/04 , C21D8/0273 , C21D2211/001 , C21D2211/008
摘要： A method of producing a dual phase structure cold rolled steel sheet having tensile strength 35 to 50 kg/mm.sup.2, yield ratio less than 60% and high elongation which comprises hot rolling and cold rolling by conventional process a steel containing 0.01 to 0.05% C, less than 0.2% Si, 1.7 to 2.5% Mn, 0.01 to 0.10 Al with the balance being Fe and unavoidable impurities, holding the produced steel sheet for 20 seconds to 20 minutes at a temperature 720.degree. to 850.degree. C., and cooling the steel sheet at a cooling speed between 3.degree. and 50.degree. C. per second and also above a value (.degree.C. per second) shown by following formulae:12.times.[Mn(%)].sup.2 -62.times.[Mn(%)]+81.
摘要翻译： 一种制造拉伸强度为35〜50kg / mm2，屈服比小于60％，高伸长率的双相结构冷轧钢板的方法，其包括通过常规方法的热轧和冷轧含有0.01〜0.05％C的钢， 小于0.2％的Si，1.7〜2.5％的Mn，0.01〜0.10的Al，余量为Fe和不可避免的杂质，在720〜850℃的温度下将生成的钢板保持20秒〜20分钟， 钢板以每秒3〜50℃的冷却速度，也高于以下公式所示的值（℃/秒）：12x [Mn（％）] 2-62x [Mn（％）] + 81。
-
10.发明授权Apparatus for continuously producing a high strength dual-phase steel strip or sheet 失效用于连续生产高强度双相钢带或片的设备
公开(公告)号：US4296919A
公开(公告)日：1981-10-27
申请号：US178015
申请日：1980-08-13
CPC分类号： C21D9/56 , C21D8/0242
摘要： An apparatus for continuously producing a high strength dual-phase steel strip or sheet having a chemical composition which produces a dual-phase structure composed of ferrite grains and a low temperature transformed phase when rapidly cooled from the (.alpha.+.gamma.) temperature range or from the .gamma. temperature range. The apparatus has a continuous heat treatment furnace in which the strip moves vertically and which is composed of a heating zone, a soaking zone and a cooling zone, and conventional equipment associated therewith. The cooling zone has an upper hearth roll group, a lower hearth roll group and cooling equipment for cooling the strip at a rate in the range between 1.degree. and 300.degree. C./sec. for retaining the austenite in the steel of the strip. The hearth rolls of each hearth roll group are arranged to guide the strip coming from the soaking zone up and down through the cooling zone from the inlet end to the outlet end, alternately passing around the upper hearth rolls and the lower hearth rolls. The hearth roll at the position where the strip is subjected to straining and begins to work harden as a result of the bending, and the hearth rolls subsequent to such position, have diameters such that the strain induced phase transformation of the retained austenite and consequently the work hardening of the strip when it is turned around the hearth rolls is avoided.
摘要翻译： 一种用于连续生产具有化学组成的高强度双相钢带或片材的装置，当从（α+γ）温度范围或从（α+γ）温度范围或 伽玛温度范围。 该设备具有连续的热处理炉，其中钢带垂直移动，其由加热区，均热区和冷却区组成，以及与之相关的常规设备。 冷却区具有上炉辊组，下炉辊组和用于以1℃至300℃/秒之间的速率冷却钢带的冷却设备。 用于将奥氏体保持在钢带的钢中。 每个炉床辊组的炉底辊被布置成将来自均热区的条带从入口端到出口端上下导引通过冷却区，交替地通过上炉底辊和下炉底辊。 在钢带受到应变的位置处的炉床辊，由于弯曲而开始加工硬化，并且在这种位置之后的炉床辊具有直径，使得应变引起残余奥氏体的相变，因此 避免了在转动炉床辊时钢带的加工硬化。
-
-
-
-
-
-
-
-
-
搜索结果
14 条记录 (耗时 0.022 秒)
