公开(公告)号：US5580402A

公开(公告)日：1996-12-03

申请号：US156034

申请日：1993-11-19

申请人： Takeshi Fujita ,  Masakazu Niikura ,  Shinji Mitao ,  Masataka Suga ,  Kohei Hasegawa

发明人： Takeshi Fujita ,  Masakazu Niikura ,  Shinji Mitao ,  Masataka Suga ,  Kohei Hasegawa

IPC分类号： C22C21/06 ,  C22F1/04 ,  C22F1/047 ,  C22C21/08

CPC分类号： C22F1/04 ,  C22C21/06 ,  C22F1/047

摘要： Disclosed is an aluminum alloy sheet having a chemical composition of an Si-containing Al--Mg--CU alloy. The aluminum alloy sheet exhibits a streak-shaped modulated structure at a diffraction grating points of an Al--Cu--Mg--system compound in the electron beam diffraction grating image. The above mentioned streak can be generated efficiently when the alloy essentially consists of 1.5 to 3.5% by weight of Mg, 0.3 to 1.0% by weight of Cu, 0.05 to 0.6% by weight of Si, and the balance of Al and inevitable impurities, and the ratio of Mg/Cu is in the range of 2 to 7. The alloy contains 0.01-0.50% of at least one element selected from the group consisting of Sn, Cd, and In.

摘要翻译： 公开了具有含Si的Al-Mg-Cu合金的化学组​​成的铝合金板。 铝合金板在电子束衍射光栅图像中的Al-Cu-Mg系化合物的衍射光栅点处呈现条纹状的调制结构。 当合金基本上由Mg，0.3〜1.0重量％的Cu，0.05〜0.6重量％的Si，余量的Al和不可避免的杂质组成时，能够有效地产生上述条纹， 并且Mg / Cu的比例在2〜7的范围内。该合金含有0.01-0.50％的选自Sn，Cd和In中的至少一种元素。

公开(公告)号：US5460666A

公开(公告)日：1995-10-24

申请号：US205623

申请日：1994-03-02

申请人： Takeshi Fujita ,  Kohei Hasegawa ,  Shinji Mitao ,  Masataka Suga ,  Masakazu Niikura ,  Koichi Ohori ,  Hiroshi Saitoh

发明人： Takeshi Fujita ,  Kohei Hasegawa ,  Shinji Mitao ,  Masataka Suga ,  Masakazu Niikura ,  Koichi Ohori ,  Hiroshi Saitoh

IPC分类号： C22C21/06 ,  C22C21/08 ,  C22F1/047

CPC分类号： C22C21/08 ,  C22F1/047

摘要： A method manufacturing an aluminum alloy sheet comprising preparing an aluminum alloy ingot essentially consisting of 1.5 to 3.5% by weight of Mg, 0.3 to 1.0% by weight of Cu, 0.05 to 0.6% by weight of Si, and a balance of Al, in which the ratio of Mg/Cu is in the range of 2 to 7, homogenizing the ingot in one step or in multiple steps, performed at a temperature within a range of 400 to 580.degree. C., preparing an alloy sheet having a desired sheet thickness by subjecting the ingot to a hot rolling and a cold rolling, subjecting the alloy sheet to heat treatment including heating the sheet up to a range of 500.degree. to 580.degree. C. at a heating rate of 3.degree. C./sec. or more, keeping it for 0 to 60 seconds at the temperature reached, and cooling it to 100.degree. C. or less at a looking rate of 2.degree. C./sec. or more, and keeping the alloy sheet at a temperature within a range of 180.degree. to 300.degree. C. for 3 to 60 seconds. Thus, a natural aging-retardated aluminum alloy sheet is obtained.

摘要翻译： 一种制造铝合金板的方法，包括制备基本上由1.5至3.5重量％的Mg，0.3至1.0重量％的Cu，0.05至0.6重量％的Si和余量的Al的铝合金锭 其中Mg / Cu的比例在2〜7的范围内，在400〜580℃的温度范围内进行1步或多步均质化，制备具有所需片材的合金薄片 通过使锭进行热轧和冷轧，使该合金板进行热处理，包括将片材加热至500℃〜580℃的范围，加热速度为3℃/秒。 以上，在达到的温度下保持0〜60秒，并以2℃/秒的倍率冷却至100℃以下。 以上，将合金板保持在180〜300℃的范围内3〜60秒。 因此，获得了自然老化延迟的铝合金板。

公开(公告)号：US5441582A

公开(公告)日：1995-08-15

申请号：US188155

申请日：1994-01-27

申请人： Takeshi Fujita ,  Shinji Mitao ,  Kohei Hasegawa ,  Masataka Suga

发明人： Takeshi Fujita ,  Shinji Mitao ,  Kohei Hasegawa ,  Masataka Suga

IPC分类号： C22C21/06 ,  C22F1/047 ,  C22C21/08

CPC分类号： C22C21/06 ,  C22F1/047

摘要： Disclosed is a method manufacturing an aluminum alloy sheet comprising preparing an aluminum alloy ingot essentially consisting of 1.5 to 3.5% by weight of Mg, 0.3% to 1.0% by weight of Cu, 0.05 to 0.35% by weight of Si, 0.03 to 0.5% by weight of Fe, 0.005 to 0.15% by weight of Ti, 0.0002 to 0.05% by weight of B and a balance of Al, in which the ratio of Mg/Cu is in the range of 2 to 7, homogenizing the ingot in one step or in multiple steps, performed at a temperature within the range of 400.degree. to 580.degree. C., preparing an alloy sheet having a desired sheet thickness by subjecting the ingot to a hot rolling and a cold rolling, subjecting the alloy sheet to a heat treatment including heating the sheet up to a range of 500.degree. to 580.degree. C. at a heating rate of 3.degree. C./second or more, keeping it at the temperature reached for 0 to 60 seconds, and cooling at a cooling rate of 2.degree. C./second or more, subjecting the alloy sheet to a preliminary aging treatment performed at a temperature within the range of 45.degree. to 100.degree. C. for 2 to 48 hours after keeping at room temperature or immediately after the heat treatment, and subjecting the alloy sheet to a restoring treatment performed at a temperature within the range of 180.degree. to 300.degree. C. for 3 to 60 seconds. Thus, a natural aging-retardated aluminum alloy sheet exhibiting excellent formability and excellent bake hardenability is obtained.

摘要翻译： 公开了一种制造铝合金板的方法，其包括制备基本上由1.5至3.5重量％的Mg，0.3重量％至1.0重量％的Cu，0.05至0.35重量％的Si，0.03至0.5重量％ 的Fe，0.005〜0.15重量％的Ti，0.0002〜0.05重量％的B，余量为Al，其中Mg / Cu的比例在2〜7的范围内，将锭均质化为1 在400〜580℃的温度范围内进行工序或多步骤，通过对锭进行热轧和冷轧，制备具有所需片材厚度的合金板，对合金板进行 热处理，包括以3℃/秒以上的加热速度将片材加热至500〜580℃的范围，将其保持在0〜60秒的温度下，以冷却速度 在2℃/秒以上的温度下进行预熟化处理 在室温或立即热处理后保持2〜48小时，在45〜100℃的范围内进行2〜48小时，在180〜300℃的温度范围内进行恢复处理 C. 3至60秒。 因此，获得了优异的成形性和优异的烘烤淬透性的自然老化延迟铝合金板。

公开(公告)号：US4572748A

公开(公告)日：1986-02-25

申请号：US722763

申请日：1985-04-15

申请人： Masataka Suga ,  Makoto Yamada ,  Kazuhide Takahashi ,  Nobuhiro Iwasaki ,  Kazuyuki Matsui ,  Toru Izawa ,  Itaru Watanabe ,  Hisatoshi Tagawa

发明人： Masataka Suga ,  Makoto Yamada ,  Kazuhide Takahashi ,  Nobuhiro Iwasaki ,  Kazuyuki Matsui ,  Toru Izawa ,  Itaru Watanabe ,  Hisatoshi Tagawa

IPC分类号： B21B3/00 ,  C21D1/18 ,  C21D6/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/44 ,  C22C38/54 ,  C21D1/62

CPC分类号： C21D8/0226 ,  C22C38/44 ,  C21D1/18 ,  C21D8/021 ,  C21D8/0263

摘要： The steel plate having a high tensile strength is manufactured from a steel consisting essentially of 0.04-0.16% by weight of C, 0.02-0.50% by weight of Si, 0.4-1.2% by weight of Mn, 0.2-5.0% by weight of Ni, 0.2-1.5% by weight of Cr, 0.2-1.0% by weight of Mo, 0.01-0.10% by weight of acid soluble Al, 0.03-0.15% by weight of one or more of V, Ti and Nb, 0.015% or less by weight of P, 0.006% or less by weight of S and the balance of iron and inherent impurities. The steel is heated to a temperature above a temperature at which carbo-nitrides of V and Nb and carbides of Ti become complete solid solution state, rolled with total reduction of 40% or more below 950.degree. C., quenched by simultaneous cooling immediately after completion of the rolling from a temperature above (A.sub.3 -50).degree.C. and tempered at a temperature lower than Ac.sub.1 temperature. The density of cooling water (W) for the quenching is detemined by the following equation (I) or (II) in accordance with the plate thickness (t):(I) for the plate over 40 mm thicknessW=0.7 to 1.5 m.sup.3 /min.multidot.m.sup.2(II) for the plate over 25 mm and under 40 mm thicknessW=0.7 to (8.5-0.1 t)/3 m.sup.3 /min.multidot.m.sup.2.

摘要翻译： 具有高拉伸强度的钢板由基本上由以下组成的钢制成，所述钢主要由C，0.02-0.50重量％的Si，0.4-1.2重量％的Mn，0.2-5.0重量％的C， Ni，0.2-1.5重量％的Cr，0.2-1.0重量％的Mo，0.01-0.10重量％的酸溶性Al，0.03-0.15重量％的V，Ti和Nb中的一种或多种，​​0.015％ 或更少的P，0.006重量％以下的S和余量的铁和固有的杂质。 将钢加热到高于V和Nb的碳氮化物和Ti的碳化物变成完全固溶状态的温度的温度下，在950℃下总共降低40％以上的轧制，在立即冷却后立即淬火淬火 从高于（A3-50）℃的温度完成轧制，并在低于Ac1温度的温度下回火。 用于淬火的冷却水的密度（W）根据板厚度（t）由以下等式（I）或（II）确定：对于厚度大于40mm的板，板的厚度（t）为：（I）W = 0.7至1.5m 3 / minxm2（II），对于25mm以上且40mm以下厚度的板W = 0.7〜（8.5-0.1t）/ 3m 3 / min×m2。