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公开(公告)号：US20200282454A1
公开(公告)日：2020-09-10
申请号：US16064897
申请日：2016-12-20
申请人： ArcelorMittal
IPC分类号： B22D11/124 , C21D1/56 , C21D1/667 , C09K5/10
摘要： A method of heat treatment of a non-metallic or metallic item is provided. The method includes at least one step of heat transfer between the item and a heat transfer fluid A′. The heat transfer fluid A′ includes a fluid medium and nanoparticles having a lateral size between 26 and 50 μm. The heat transfer fluid has a heat transfer coefficient below the heat transfer coefficient of water.
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公开(公告)号：US10563278B2
公开(公告)日：2020-02-18
申请号：US16180508
申请日：2018-11-05
IPC分类号： C21D9/04 , B21B1/085 , B21B45/02 , C21D1/18 , C22C38/00 , C21D1/62 , C21D1/667 , C22C38/20 , C22C38/26 , C22C38/24 , C22C38/22 , C22C38/40 , C22C38/18 , C22C38/04 , C22C38/02 , C21D1/56 , C21D6/00 , C22C38/50
摘要： Rail-manufacturing equipment that performs forced cooling on at least a head of a hot rail hot-rolled at or heated to the austenite region temperature or higher. The rail-manufacturing equipment includes a head-cooling header configured to jet a cooling medium toward the head of the rail, a head thermometer configured to measure surface temperature of the head of the rail, and a controller configured to adjust jet of the cooling medium from the head-cooling header. The controller includes a temperature-monitoring unit configured to monitor measurement results by the head thermometer during the forced cooling, and a cooling-rate controller.
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3.发明申请公开(公告)号：US20180347022A1
公开(公告)日：2018-12-06
申请号：US16101718
申请日：2018-08-13
发明人： Takahiro SHIKAMA , Shinji YOSHIHARA
摘要： The stress corrosion cracking resistance of an aluminum alloy member consisting of 7000-series aluminum alloy extruded shape is improved. At least one region of a quenched aluminum alloy extruded shape is subjected to a restoring treatment of heating at a temperature-raising rate of 0.4° C./second or more, holding at a temperature ranging 300 to 590° C. for a time longer than zero second and cooling at a cooling rate of 0.5° C./second or more. A plastic working is applied to the region within 72 hours. The region is subjected to a heat treatment of heating at a temperature-raising rate of 0.4° C./second or more, holding at a temperature ranging 300 to 590° C. for a time longer than zero second and not longer than 300 seconds and cooling at a cooling rate of 2000° C./minute or less. The whole of the aluminum alloy extruded shape is subjected to an artificial aging treatment.
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公开(公告)号：US10036078B2
公开(公告)日：2018-07-31
申请号：US14905311
申请日：2014-07-23
发明人： Yuji Arai , Tomohiko Omura , Keiichi Kondo
IPC分类号： C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C21D9/08 , C21D8/10 , B21B3/00 , C22C38/00 , C21D1/56 , C21D6/00 , C21D7/13 , C22C38/02 , C22C38/04 , C22C38/06 , B21B19/04 , B21B19/10
CPC分类号： C21D9/085 , B21B3/00 , B21B19/04 , B21B19/10 , C21D1/56 , C21D6/002 , C21D6/005 , C21D6/008 , C21D7/13 , C21D8/105 , C21D9/08 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32
摘要： Low-alloy oil-well steel pipe includes a composition consisting, in mass %, of C: 0.40 to 0.65%, Si: 0.05 to 0.50%, Mn: 0.10 to 1.00%, P: 0.020% or less, S: 0.0020% or less, Cu: 0.15% or less, Cr: 0.40 to 1.50%, Mo: 0.50 to 2.50%, V: 0.05 to 0.25%, Ti: 0 to less than 0.01%, Nb: 0.01 to 0.2%, sol. Al: 0.010 to 0.100%, N: 0.006% or less, B: 0 to 0.0015%, and Ca: 0 to 0.003%, the balance being Fe and impurities. The structure has tempered martensite and 0 to less than 2% volume ratio of retained austenite. A grain size number of prior-austenite grain in the structure is 9.0 or more. An equivalent circular diameter of a sub-structure surrounded by a boundary having a crystal orientation difference of 15° or more from a packet boundary, a block boundary and a lath boundary is 3 μm or less for the tempered martensite.
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公开(公告)号：US20170314088A1
公开(公告)日：2017-11-02
申请号：US15141248
申请日：2016-04-28
发明人： Jianfeng Wang
IPC分类号： C21D9/00 , B32B15/01 , C22C38/28 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C22C38/38 , C21D6/04 , C21D6/00 , C21D1/667 , C21D1/63 , C21D1/613 , C21D1/60 , C21D1/56 , C21D1/06 , C23C2/06
CPC分类号： C21D9/0068 , B32B15/013 , C21D1/06 , C21D1/56 , C21D1/60 , C21D1/613 , C21D1/63 , C21D1/667 , C21D6/002 , C21D6/005 , C21D6/008 , C21D6/04 , C21D2211/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/28 , C22C38/38 , C23C2/06
摘要： Methods of selectively cooling and quenching surface regions of high-strength transformation induced plasticity (TRIP) steel are provided. The method may comprise selectively cooling at least one region of an exposed surface of a hot-formed press-hardened component comprising a high-strength steel. Prior to selective cooling, the component has a microstructure comprising≧about 5% by volume retained austenite in a matrix of martensite. The selective cooling is conducted at a temperature of≦about −40° C. and forms at least one quenched region comprising≦about 2% by volume austenite. The TRIP steel may be zinc-coated and having a surface coating comprising zinc and substantially free of liquid metal embrittlement (LME). Zinc-coated hot-formed press-hardened components, including automotive components, formed from such methods are also provided.
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公开(公告)号：US20160333523A1
公开(公告)日：2016-11-17
申请号：US15112008
申请日：2015-01-17
发明人： Chris MILLWARD
IPC分类号： D21G3/04 , C22C38/22 , C22C38/04 , C22C38/02 , C22C38/00 , B22F3/24 , C21D9/52 , C21D8/02 , C21D1/18 , C21D1/56 , B22F9/08 , B22F3/15 , C22C38/24 , C21D9/22
CPC分类号： D21G3/04 , B22F3/15 , B22F3/24 , B22F9/082 , B22F2003/248 , B22F2005/001 , B22F2009/0824 , B31F1/145 , C21D1/18 , C21D1/25 , C21D1/56 , C21D6/002 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D9/18 , C21D9/22 , C21D9/52 , C21D9/58 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/22 , C22C38/24
摘要： The invention relates to a creping blade for the detachment of a travelling paper web from a dryer cylinder, said blade having a working edge to be placed against the cylinder, wherein the creping blade has a tensile strength of 1800-2500 N/mm2 and a hardness of 57-66 HRC in the hardened and tempered condition and wherein the blade is made from a steel, which comprises the following main components (in wt. %): C: 1.2-1.5; Si: 0.1-0.8; Mn: 0.1-0.7; Cr: 4.2-5.2; Mo: 3.0-4.0; V: 3.2-4.2; N: 0.01-0.15; balance Fe and impurities.
摘要翻译： 本发明涉及一种用于将移动的纸幅从烘缸中分离的起皱刀片，所述刀片具有一工作边缘以抵靠该缸体放置，其中该起皱刀片具有1800-2500N / mm2的拉伸强度和一 在硬化和回火状态下的硬度为57-66HRC，并且其中所述刀片由钢制成，所述钢包括以下主要组分（重量％）：C：1.2-1.5; Si：0.1-0.8; Mn：0.1-0.7; Cr：4.2-5.2; Mo：3.0-4.0; V：3.2-4.2; N：0.01-0.15; 平衡铁和杂质。
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公开(公告)号：US20160305194A1
公开(公告)日：2016-10-20
申请号：US14685847
申请日：2015-04-14
IPC分类号： E21B17/04 , F16L13/02 , B23K31/02 , C21D1/00 , C21D9/50 , C21D1/26 , C21D1/56 , E21B17/00 , C21D6/00
CPC分类号： C21D1/00 , B23K9/0282 , B23K9/23 , B23K20/129 , B23K20/227 , B23K31/02 , B23K2101/06 , B23K2103/04 , C21D1/26 , C21D1/56 , C21D6/00 , C21D9/505 , E21B17/16
摘要： A heavy weight drill pipe may include a tube body formed of AISI 1340 alloy steel, and first and second tool joints at respective ends of the tube body, and which are formed of an AISI 41XX series alloy steel. The first and second tool joints may be welded to the tube body at a weld line within a weld region. A Charpy impact toughness at the weld line or surrounding weld region may be least 12 ft-lbs. (16.5 N-m). Yield and tensile strengths at the weld line or weld region may be at least 65 ksi (448.0 MPa) and at least 106 ksi (731.0 MPa), respectively. Material properties at the weld line or weld region may be achieved by heat treating after welding. Heat treating may include austenitizing, quenching, and tempering the weld line and/or the surrounding weld region.
摘要翻译： 重型钻杆可以包括由AISI 1340合金钢形成的管体，以及在管体的各个端部处的第一和第二工具接头，并且由AISI 41XX系列合金钢形成。 第一和第二工具接头可以在焊接区域内的焊接线处焊接到管体。 焊接线或周围焊接区域的夏比冲击韧性可能至少为12 ft-lbs。 （16.5N-m）。 在焊接线或焊接区域的屈服强度和拉伸强度可以分别为至少65ksi（448.0MPa）和至少106ksi（731.0MPa）。 焊接线或焊接区域的材料特性可通过焊接后的热处理实现。 热处理可以包括奥氏体化，淬火和回火焊接线和/或周围的焊接区域。
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公开(公告)号：US09303293B2
公开(公告)日：2016-04-05
申请号：US14101101
申请日：2013-12-09
发明人： Augusto Parodi , Leandro Marini , Felice Matta , Simone Bianchi
IPC分类号： C21D1/56 , C10M105/38
CPC分类号： C21D1/56 , C10M105/38 , C10M2207/026 , C10M2207/2835 , C10M2215/064 , C10M2215/223 , C10M2219/044 , C10N2230/10 , C10N2230/64 , C10N2240/00
摘要： A fluid composition is prepared by esterification of (a) at least one synthetic alcohol and (b) a mixture of fatty acids, including at least oleic and linoleic acids, and at least one of a mixture comprising a Miristic acid, Palmitoleic acid, Margarinic acid, Margaroleic acid, α-Linoleic acid, Arachidic acid, Eicosenoic Behenic acid, and Erucic acid. The fatty acids can also include at least one of stearic acid and palmitic acid. The composition can be used as, or as part of, a quenching bath for a metal.
摘要翻译： 通过酯化（a）至少一种合成醇和（b）包含至少油酸和亚油酸的脂肪酸的混合物和至少一种包含Miristic酸，棕榈油酸，Margarinic的混合物 酸，马草酸，α-亚油酸，花生四烯酸，二十烷酸苯二甲酸和芥酸。 脂肪酸还可以包括硬脂酸和棕榈酸中的至少一种。 该组合物可以用作金属淬火浴的一部分或作为其一部分。
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公开(公告)号：US20160040263A1
公开(公告)日：2016-02-11
申请号：US14770664
申请日：2014-03-25
CPC分类号： C21D9/04 , B21B1/085 , B21B45/02 , B21B2045/0221 , C21D1/18 , C21D1/56 , C21D1/62 , C21D1/667 , C21D6/00 , C21D2211/009 , C22C38/00 , C22C38/50
摘要： Rail manufacturing method performs, on at least a head of the rail that is hot after hot-rolled at an austenite region temperature or higher or after heated to the austenite region temperature or higher, forced cooling: for 10 seconds from start of the forced cooling so that a cooling rate at a surface of the head becomes 1° C./s to 20° C./s; during a period after a lapse of 10 seconds from the start until heat generation during transformation begins at the surface so that the cooling rate becomes 1° C./s to 5° C./s; during transformation from beginning to end of the heat generation during transformation so that the cooling rate becomes lower than 1° C./s or a temperature-rising rate becomes 5° C./s or lower; and during a period after the end of the heat generation during transformation until temperature at the surface becomes 450° C. or lower so that the cooling rate becomes 1° C./s to 20° C./s.
摘要翻译： 轨道制造方法在奥氏体区域以上的热轧后或加热到奥氏体区域温度以上之后，至少在热轧头部进行强制冷却：从强制冷却开始10秒钟 使得头部表面的冷却速度变为1℃/ 20℃/秒; 在从开始经过10秒之后的一段时间到在表面处的变换开始之前发热，从而使冷却速度变为1℃/ 5℃/ 5℃。 在转化期间从发热开始到结束的转变，使得冷却速度变得低于1℃/ s或升温速率变为5℃/ s以下; 并且在转化期间的热产生结束之后的一段时间内，直到表面的温度变为450℃或更低，使得冷却速率变为1℃/ 20℃/秒。
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公开(公告)号：US20050217820A1
公开(公告)日：2005-10-06
申请号：US11090940
申请日：2005-03-25
申请人： Bartolomeo Tosco
发明人： Bartolomeo Tosco
摘要： A method for cooling foundry castings, characterized in that it comprises the steps of: forming a cooling fog by nebulizing a flow of water, exposing a substantial part of the external surface of the casting to said cooling fog, measuring the temperature of the casting, and interrupting the exposure of the casting to the cooling fog when the measured temperature drops below the predetermined threshold.
摘要翻译： 一种用于冷却铸造铸件的方法，其特征在于，其包括以下步骤：通过喷雾水流形成冷却雾，将铸件的大部分外表面暴露于所述冷却雾，测量铸件的温度， 并且当测量的温度降到预定阈值以下时，中断铸件暴露于冷却雾。
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