公开(公告)号：US4983357A

公开(公告)日：1991-01-08

申请号：US389360

申请日：1989-08-03

申请人： Shinji Mitao ,  Seishi Tsuyama ,  Kuninori Minakawa

发明人： Shinji Mitao ,  Seishi Tsuyama ,  Kuninori Minakawa

IPC分类号： C22C14/00

CPC分类号： C22C14/00

摘要： A heat-resistant TiAl alloy having excellent room-temperature fracture toughness, high-temperature oxidation resistance and high-temperature strength is disclosed. Said alloy consists essentially of from 29 to 35 wt. % aluminum, from 0.5 to 20 wt. % nobium, and at least one element selected from the group consisting of from 0.1 to 1.8 wt. % silicon, and from 0.3 to 5.5 wt. % zirconium, the balance being titanium and incidental impurities. Preferably impurities are limited to 0.6 wt.-% oxygen, 0.1 wt.-% nitrogen and 0.5 wt.-% hydrogen.

公开(公告)号：US5035754A

公开(公告)日：1991-07-30

申请号：US504255

申请日：1990-04-04

申请人： Tetsuo Sakiyama ,  Seishi Tsuyama ,  Kuninori Minakawa

发明人： Tetsuo Sakiyama ,  Seishi Tsuyama ,  Kuninori Minakawa

IPC分类号： C22C21/10 ,  C22F1/00 ,  C22F1/053

CPC分类号： C22F1/053

摘要： A heat treating method for a high strength aluminum alloy comprising the steps of: solution heat treating of an aluminum alloy consisting essentially of about 3 to 9 wt. % Zn, 1 to 6 wt. % Mg, 1 to 3 wt. % Cu, at least one element selected from the group consisting of 0.1 to 0.5 wt. % Cr, 0.1 to 0.5 wt. % Zr, 0.2 to 1.0 wt. % Mn, and the balance being Al, heating of the solution heat treated alloy to a temperature of a lower temperature zone of from 100.degree. to 140.degree. C. and optionally maintaining the alloy at a temperature within the lower temperature zone for a duration of time, reheating of the alloy to a temperature of an upper temperature zone of from 160.degree. to 200.degree. C. and optionally maintaining the alloy at a temperature within the upper temperature zone for a second duration of time, cooling of the alloy to a temperature of the lower temperature zone, and repeating the steps (2), (3), and (4) at least twice.

公开(公告)号：US5531839A

公开(公告)日：1996-07-02

申请号：US407011

申请日：1995-03-28

申请人： Yoshihiro Hosoya ,  Masaya Morita ,  Seishi Tsuyama

发明人： Yoshihiro Hosoya ,  Masaya Morita ,  Seishi Tsuyama

IPC分类号： C21D8/04 ,  C22C38/14

CPC分类号： C22C38/14 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473

摘要： A continuously annealed cold-rolled steel sheet excellent in balance between deep drawability and resistance to secondary-work embrittlement, which consists essentially of: under 0.0030 wt. % carbon, up to 0.05 wt. % silicon, from 0.05 to 0.20 wt. % manganese, up to 0.02 wt. % phosphorus, up to 0.15 wt. % sulfur, from 0.025 to 0.06 wt. % soluble aluminum, up to 0.0030 wt. % nitrogen, from 0.02 to 0.10 wt. % titanium, from 0.0003 to 0.0010 wt. % boron, and the balance being iron and incidental impurities, where a value of an index (X) representing a content rate of titanium to boron, as calculated by specific formulae, is of from 9.2 to 11.2. The above-mentioned continuously annealed cold-rolled steel sheet is manufactured by: carrying out a finishing-rolling in a hot-rolling of a steel slab having the above-mentioned chemical composition so that a reduction rate distribution function (Y) as expressed by another specific formula is satisfied; completing the finishing-rolling at a temperature of from 880.degree. to 920.degree. C.; then coiling the resultant hot-rolled steel strip; then cold-rolling the hot-rolled steel strip at an accumulative reduction rate of at least 70%; and then continuously annealing the resultant cold-rolled steel strip in a temperature region of from 750.degree. C. to an Ac.sub.3 transformation point.

摘要翻译： PCT No.PCT / JP94 / 01663 Sec。 371日期：1995年3月28日 102（e）1995年3月28日PCT PCT 1994年10月5日PCT公布。 公开号WO95 / 09931 日期：1995年04月13日。一种连续退火的冷拉伸性能优异的深冲性和耐二次加工脆性之间的平衡，其基本上由以下组成：0.0030wt。 ％碳，至多0.05重量％ ％硅，0.05〜0.20wt。 ％锰，至多0.02重量％ ％磷，至多0.15重量％ ％硫，0.025〜0.06重量％ ％可溶性铝，至多0.0030wt。 ％氮，0.02〜0.10wt。 ％钛，0.0003〜0.0010重量％ ％硼，余量为铁和附带杂质，其中代表由特定公式计算的钛与硼的含量比的指数（X）为9.2至11.2。 上述连续退火冷轧钢板是通过以下方式制造的：在具有上述化学成分的钢坯的热轧中进行精轧，使得如下所示的减速率分布函数（Y）如 另外一个具体的公式是满足的; 在880°至920°C的温度下完成精轧。 然后卷取所得热轧钢带; 然后以至少70％的累积减速率冷轧热轧钢带; 然后在750℃的温度区域中将所得到的冷轧钢带连续退火至Ac 3相变点。

公开(公告)号：US5542996A

公开(公告)日：1996-08-06

申请号：US199254

申请日：1994-03-04

申请人： Yasunobu Nagataki ,  Seishi Tsuyama ,  Yoshihiro Hosoya ,  Tomoyoshi Okita ,  Shuzi Kanetoh ,  Yasuyuki Takada

发明人： Yasunobu Nagataki ,  Seishi Tsuyama ,  Yoshihiro Hosoya ,  Tomoyoshi Okita ,  Shuzi Kanetoh ,  Yasuyuki Takada

IPC分类号： C22C38/04 ,  C22C38/06 ,  C21D9/46 ,  C22C38/58

CPC分类号： C22C38/06 ,  C22C38/04

摘要： A method for manufacturing an ultra-high-strength cold-rolled steel sheet having desirable delayed fracture resistance, which comprises: preparing a material consisting essentially of 0.1 to 0.25 wt. % carbon, up to 1 wt. % silicon, 1 to 2.5 wt. % manganese, up to 0.020 wt. % phosphorus, up to 0.005 wt. % sulfur, 0.01 to 0.05 wt. % soluble aluminum, 0.0010 to 0.0050 wt. % nitrogen, optionally at least one of Nb, Ti or V, optionally at least one of Cu, Ni, B, Cr or Mo, the balance being iron and incidental impurities; subjecting the material to a hot rolling, a pickling and a cold rolling to prepare a cold-rolled steel sheet; and subjecting the cold-rolled steel sheet to a continuous heat treatment which comprises: subjecting the cold-rolled steel sheet to a soaking treatment at a temperature of Ac.sub.3 to 900.degree. C. for 30 seconds to 15 minutes, quenching the cold-rolled steel sheet at a quenching rate of at least 400.degree. C./second from a temperature of at least a lower limit temperature (T.sub.Q) for starting quenching as expressed by the following formula to a temperature of up to 100.degree. C.: T.sub.Q (.degree.C.)=600+800.times.C+(20.times.Si+12.times.Mo+13.times.Cr)-(30.times.Mn+8.times.Cu+7.times.Ni+5000.times.B), wherein C, Si, Mo, Cr, Mn, Cu, Ni and B are respectively weight percents for carbon, silicon, molybdenum, chromium, manganese, copper, nitrogen and boron, and tempering the cold-rolled steel sheet at a temperature of 100.degree. C. to 300.degree. C. for 1 to 15 minutes.

摘要翻译： PCT No.PCT / JP94 / 00038 Sec。 371日期1994年3月4日 102（e）1994年3月4日PCT 1994年1月13日PCT PCT。 出版物WO94 / 16115 日期1994年7月21日制造具有期望的耐断裂性的超高强度冷轧钢板的方法，其包括：制备基本上由0.1〜0.25重量％ ％碳，至多1重量％ ％硅，1〜2.5wt。 ％锰，至多0.020重量％ ％磷，至多0.005重量％ ％硫，0.01〜0.05wt。 ％可溶性铝，0.0010〜0.0050重​​量％ ％氮，任选至少一种Nb，Ti或V，任选至少一种Cu，Ni，B，Cr或Mo，余量为铁和杂质; 对该材料进行热轧，酸洗和冷轧以制备冷轧钢板; 对该冷轧钢板进行连续热处理，其特征在于，将所述冷轧钢板在Ac3〜900℃的温度下均热处理30秒〜15分钟，冷却所述冷轧钢板 从至少下限温度（TQ）至少下降温度（TQ）至少为400℃/秒的淬火速度，如下式所示，温度高达100℃：TQ（DEG （30xMn + 8xCu + 7xNi + 5000xB），其中C，Si，Mo，Cr，Mn，Cu，Ni和B分别为碳，硅， 钼，铬，锰，铜，氮和硼，并在100℃至300℃的温度下回火冷轧钢板1至15分钟。

公开(公告)号：US5356493A

公开(公告)日：1994-10-18

申请号：US86507

申请日：1993-07-01

申请人： Seishi Tsuyama ,  Yoshihiro Hosoya ,  Shuji Kanetoh ,  Daijiro Koyanagi ,  Hiromi Nakamura ,  Satoshi Kohira

发明人： Seishi Tsuyama ,  Yoshihiro Hosoya ,  Shuji Kanetoh ,  Daijiro Koyanagi ,  Hiromi Nakamura ,  Satoshi Kohira

IPC分类号： C22C38/14 ,  C21P8/04 ,  C22C38/06

CPC分类号： C22C38/14

摘要： Blister-resistant steel sheet consists essentially of 0.0005 to 0.003 wt. % C, 0.10 to 2.2 wt. % Mn, 0.6 wt. % or less Si, 0.07 wt. % or less P, 0.025 wt. % or less S, 0.02 to 0.06 wt. % of sol. Al, 0.0035 wt. % or less N, 0.003 wt. % or less O, [(48/14)N+(48/32)S+4.times.(48/12)C] wt. % or less Ti and the balance being Fe and inevitable impurities; and smaller one of either Ti (wt. %) or [(48/14)N+(48/32)S] (wt. %) being [0.002 t.sup.2 +0.003] or more, where t is a thickness (mm) of the steel sheet. Method for producing blister-resistant steel sheet comprises preparing a cold rolled steel sheet having the composition of described above, and continuously annealing or continuous hot dip galvanizing by heating the steel sheet from room temperature to 650.degree.-720.degree. C. at a rate of 20.degree. C. sec or more and further to the soaking temperature above recrystallization temperature at a rate of 1.degree.-5.degree. C./sec.

摘要翻译： 防水钢板基本上由0.0005〜0.003重量％ ％C，0.10〜2.2重量％ ％Mn，0.6重量％ ％以下Si，0.07重量％ ％以下P，0.025重量％ ％以下S，0.02〜0.06重量％ ％的溶胶。 Al，0.0035wt。 ％以下N，0.003重量％ ％或更少的O，[（48/14）N +（48/32）S + 4x（48/12）C] Ti％以下，余量为Fe和不可避免的杂质; Ti（重量％）或[（48/14）N +（48/32）S]（重量％）中的较小的一个为[0.002t2 + 0.003]或更大，其中t是 钢板。 制造耐泡性钢板的方法包括制备具有上述组成的冷轧钢板，并且通过将钢板从室温加热至650-720℃，连续退火或连续热浸镀锌，速率为 20℃以上，进一步在1℃〜5℃/秒的重结晶温度以上的均热温度。

公开(公告)号：US4736884A

公开(公告)日：1988-04-12

申请号：US879219

申请日：1986-06-27

申请人： Seishi Tsuyama ,  Kazuaki Matsumoto ,  Masaharu Honda ,  Shigeyasu Matsumoto ,  Akira Tagane ,  Toru Izawa

发明人： Seishi Tsuyama ,  Kazuaki Matsumoto ,  Masaharu Honda ,  Shigeyasu Matsumoto ,  Akira Tagane ,  Toru Izawa

IPC分类号： B21B1/38 ,  B23K20/04 ,  B23K20/24 ,  C21D8/02 ,  C21B

CPC分类号： B23K20/04 ,  B23K20/24 ,  C21D8/0226 ,  C21D2251/02

摘要： A method for manufacturing a high-strength clad steel plate excellent in corrosion resistance, which comprises the steps of: placing a cladding sheet comprising stainless steel onto at least one of the surfaces of a substrate sheet comprising any one of carbon steel and low-alloy steel; welding together the peripheries of the substrate sheet and the cladding sheet to prepare a slab; heating the prepared slab to a temperature of from 1,050.degree. to 1,300.degree. C.; hot-rolling the heated slab at a finishing temperature of at least 800.degree. C. to obtain a clad steel plate comprising the substrate sheet and the cladding sheet; and cooling the obtained clad steel plate at a cooling rate of from 2.degree. to 60.degree. C. per second until the temperature of the clad steel plate is less than 450.degree. C. The above-mentioned slab may be a composite slab prepared by: placing a first cladding sheet onto a first substrate sheet, applying a peeloff material onto the upper surface of the first cladding sheet, placing a second cladding sheet onto the first cladding sheet through the peeloff material therebetween, placing a second substrate sheet onto the second cladding sheet, and welding together the peripheries of the first and second substrate sheets through spacers.

摘要翻译： 一种耐腐蚀性优异的高强度复合钢板的制造方法，其特征在于，将包含不锈钢的包覆片放置在由碳钢和低合金中任一种构成的基板的至少一个面上 钢; 将基片和包层片的周边焊接在一起，制成板坯; 将制备的板坯加热至1050℃至1300℃的温度; 在800℃以上的终轧温度下进行热轧，得到包含该基板和包层板的复合钢板; 以2〜60℃/秒的冷却速度冷却得到的复合钢板，直到复合钢板的温度低于450℃。上述板坯可以是复合板坯， 将第一包覆片放置在第一基片上，将剥落材料施加到第一包覆片的上表面上，通过其间的剥落材料将第二包覆片放置在第一包覆片上，将第二基片放置在第二包层上 并且通过间隔件将第一和第二基板的外周焊接在一起。

公开(公告)号：US07294215B2

公开(公告)日：2007-11-13

申请号：US10489382

申请日：2002-09-11

申请人： Seishi Tsuyama ,  Akio Fujibayashi ,  Akira Tagane ,  Isao Takahashi ,  Kazuo Omata

发明人： Seishi Tsuyama ,  Akio Fujibayashi ,  Akira Tagane ,  Isao Takahashi ,  Kazuo Omata

IPC分类号： C21D1/667 ,  C21D1/64 ,  C21D9/573

CPC分类号： C21D1/667 ,  B21B45/0218 ,  B21B45/0233 ,  C21D1/60 ,  C21D9/46 ,  C21D9/573

摘要： The present invention relates to a method for cooling a steel plate comprising the steps of: forming a water pool with jets of cooling water being injected to impinge on one another by using one slit-nozzle and a plurality of induced laminar flow nozzles, the slit nozzle being provided in a position on an upper surface side of the steel plate, and the induced laminar flow nozzles being provided in a position on a lower surface side of the steel plate along a transfer direction and a direction perpendicular to the transfer direction; and passing the steel plate into the water pool, wherein when a top portion of the steel plate passes over the induced laminar flow nozzles located at least on the side of highest upstream, a volume of the cooling water to be injected from each of the induced laminar flow nozzles is reduced. According to the method of the present invention, when on-line cooling is performed for a hot rolled steel plate, the top portion of the steel plate can be prevented from being super cooled, and the steel plate can therefore be uniformly cooled.

摘要翻译： 本发明涉及一种用于冷却钢板的方法，包括以下步骤：通过使用一个狭缝喷嘴和多个感应层流喷嘴将冷却水射流喷射以相互冲击而形成水池，所述狭缝 喷嘴设置在钢板的上表面侧的位置，感应层流喷嘴沿着传送方向和垂直于传送方向的方向设置在钢板的下表面侧的位置; 并且将钢板通入水池中，其中当钢板的顶部通过至少位于最高侧的一侧的感应层流喷嘴时，从每个诱导的冷却水中注入的体积的冷却水 层流喷嘴减少。 根据本发明的方法，当对热轧钢板进行在线冷却时，可以防止钢板的顶部被超冷却，因此能够均匀地冷却钢板。

公开(公告)号：US5116571A

公开(公告)日：1992-05-26

申请号：US730013

申请日：1991-07-12

申请人： Nakatsugu Abe ,  Haruo Suzuki ,  Hiroaki Tsukamoto ,  Seishi Tsuyama ,  Moriyasu Nagae

发明人： Nakatsugu Abe ,  Haruo Suzuki ,  Hiroaki Tsukamoto ,  Seishi Tsuyama ,  Moriyasu Nagae

IPC分类号： C22C38/00 ,  C22C38/24 ,  C22C38/26 ,  C22C38/54

CPC分类号： C22C38/24 ,  C22C38/26

摘要： A chromium heat-resistant steel excellent in toughness and having a high cracking resistance and a high creep strength when said steel is utilized to form a welded joint, said steel consisting essentially of:______________________________________ carbon: from 0.04 to 0.09 wt. %, silicon: from 0.01 to 0.50 wt. %, manganese: from 0.25 to 1.50 wt. %, chromium: from 7.0 to 9.2 wt. %, molybdenum: from 0.50 to 1.50 wt. %, soluble aluminum: from 0.005 to 0.060 wt. %, nitrogen: from 0.001 to 0.060 wt. %, ______________________________________ where, the total amount of nitrogen and carbon being up to 0.13 wt. %, at least one element selected from the group consisting of:______________________________________ vanadium: from 0.01 to 0.30 wt. %, and niobium: from 0.005 to 0.200 wt. %, ______________________________________ where, the total amount of vanadium and 1.5 times niobium being up to 0.30 wt. %, and the balance being iron and incidental impurities; and the amount of ferrite as represented by the ferrite number (.delta..sub.F) in the above-mentioned chromium heat-resistant steel being -5 or lower, as calculated by the following formula:.delta..sub.F=-104-555 (C+6/7N)+32.9Si-49.5Mn+12.1Cr+39.1Mo+46.1V+83.5Nb.

摘要翻译： 当所述钢用于形成焊接接头时，韧性优异且具有高抗裂性和高蠕变强度的铬耐热钢，所述钢主要由以下组成： - 碳：0.04〜0.09重量％ ％， - 硅氧烷：0.01〜0.50wt。 ％， - 锰：0.25至1.50wt。 ％，-chromium：7.0〜9.2wt。 ％， - 钼：0.50〜1.50wt。 ％，可溶性铝：0.005〜0.060重量％ ％， - 氮：0.001〜0.060重量％ ％， - 其中，氮和碳的总量高达0.13wt。 ％，选自以下的至少一种元素： - 钒：0.01〜0.30重量％ ％， - 和 - 铌：0.005〜0.200wt。 ％， - 其中钒和1.5倍铌的总量高达0.30重量％。 ％，余量为铁和杂质; 和由上述铬耐热钢中的铁素体数（ΔF）表示的铁素体的量为-5以下，通过下式计算：ΔF= -104-555（C + 6 / 7N）+ 32.9Si-49.5Mn + 12.1Cr + 39.1Mo + 46.1V + 83.5Nb。

公开(公告)号：US4720307A

公开(公告)日：1988-01-19

申请号：US847288

申请日：1986-04-02

申请人： Kazuaki Matsumoto ,  Seishi Tsuyama ,  Hisatoshi Tagawa ,  Yoshitaka Yamasaki

发明人： Kazuaki Matsumoto ,  Seishi Tsuyama ,  Hisatoshi Tagawa ,  Yoshitaka Yamasaki

IPC分类号： C21D8/00 ,  C21D7/14

CPC分类号： C21D8/00

摘要： A steel which is excellent in mechanical properties after a warm working process is produced by specifying a chemical composition as claimed, subjecting the steel to a controlled rolling under conditions at temperatures of not more than 900.degree. C. and accumulated reduction of more than 30%, leaving it, after the controlled rolling, as it is in the air or performing it to an accelerated cooling wherein the steel is cooled at rate between the air cooling and 100.degree. C./sec until temperatures where a transformation finishes, subsequently reheating the steel to ranges between 400.degree. C. and 750.degree. C., and carrying out the warm working thereon instantaneously or after the air cooling at the temperatures between 250.degree. C. and 750.degree. C.

摘要翻译： 通过规定所要求的化学组成来制造温加工后的机械性能优异的钢，在不高于900℃的温度条件下对钢进行受控轧制，并且累积减少30％以上 在受控轧制之后，将其留在空气中或将其进行加速冷却，其中钢在空气冷却和100℃/秒之间的速率下冷却直到转变完成的温度，然后再加热 钢在400℃至750℃的范围内，并在250℃至750℃的温度下瞬间或空气冷却后进行温热加工。