Continuous annealing apparatus
    3.
    发明授权
    Continuous annealing apparatus 失效
    连续退火装置

    公开(公告)号:US4575053A

    公开(公告)日:1986-03-11

    申请号:US623950

    申请日:1984-06-25

    IPC分类号: C21D9/56

    CPC分类号: C21D9/563

    摘要: A continuous annealing apparatus for metal strips comprises cylindrical rolls each arranged at a location immediately before the metal strip passes about a hearth roll in a high temperature heat-treatment region of the apparatus. An axis of the cylindrical roll is finely tilted relative to the hearth roll within 0.15 degree in directions compensating for shifted distances of the metal strip on the hearth roll in response to every 50 mm shift of the strip, thereby preventing meandering and buckling of the metal strip caused by the hearth rolls.

    摘要翻译: 用于金属条的连续退火装置包括圆柱形辊,每个圆柱形辊布置在紧接在金属带在设备的高温热处理区域内绕炉底辊的位置。 响应于条带的每50mm的偏移,圆柱形辊的轴线相对于炉床辊在0.15度内精细地倾斜,以补偿炉床辊上的金属带的移动距离,从而防止金属的弯曲和弯曲 由炉底辊引起的条带。

    Method for continuous annealing of a metal strip
    5.
    发明授权
    Method for continuous annealing of a metal strip 失效
    金属条的连续退火方法

    公开(公告)号:US4571274A

    公开(公告)日:1986-02-18

    申请号:US649425

    申请日:1984-09-11

    IPC分类号: C21D9/56 C21D9/52

    CPC分类号: C21D9/563

    摘要: In the operation of a continuous-process annealing furnace for a steel strip of a continuous length which is guided through the high-temperature zones of the furnace by the upper and lower hearth rolls in an alternate up and down vertical movement, each of the hearth rolls having an end-tapered or crowned configuration to correct the meandering of the running strip, each of the hearth rolls is coupled with one or a plural number of straightly cylindrical auxiliary rolls in contact with the strip at a position close to the hearth roll. By virtue of the installation of the auxiliary rolls, the phenomenon of wrinkling or buckling in the steel strip can be effectively prevented without causing meandering and the effect is more remarkable when specific relationships are held among the values of the diameters of the hearth roll and auxiliary roll and the position of the auxiliary roll relative to the hearth roll.

    摘要翻译: 在连续长度的钢带的连续加工退火炉的操作中,通过上下炉底辊在上下垂直运动中被引导通过炉的高温区域,每个炉床 具有端部锥形或凸起构造的辊以校正行进条的曲折,每个炉床辊在靠近炉床辊的位置处与一个或多个直圆柱形辅助辊联接,该辊与条带接触。 通过安装辅助辊,可以有效地防止钢带中的起皱或翘曲现象,而不会产生曲折,并且当炉床辊和辅助辊的直径的值之间保持特定关系时效果更显着 辊和辅助辊相对于炉床辊的位置。

    CLOSED STRUCTURE PARTS, METHOD AND PRESS FORMING APPARATUS FOR MANUFACTURING THE SAME
    6.
    发明申请
    CLOSED STRUCTURE PARTS, METHOD AND PRESS FORMING APPARATUS FOR MANUFACTURING THE SAME 有权
    封闭结构件,其制造方法和压制成型装置

    公开(公告)号:US20110174409A1

    公开(公告)日:2011-07-21

    申请号:US13120589

    申请日:2009-09-24

    IPC分类号: F16L11/00 B21D22/00

    摘要: The number of sub-parts of a closed structure part and the number of steps for manufacturing the closed structure part can be reduced and, therefore, the closed structure part can be efficiently manufactured. In a hemming press step, a punch is further lowered, and a pair of flange portions is inserted into a slit clearance. Hemming prongs are bent and each of the hemming prongs sandwiches the flange portion. The flange portion, which is one of the two flange portions, is joined to the other flange portion. At the same time, a pair of press forming surfaces of the punch presses a metal plate and performs press-forming on a pair of shoulder portions of a blank into a predetermined shape. The flange portion can be fixed to the other flange portion using the hemming prongs. The pair of shoulder portions of the blank can be press-formed into the predetermined shape.

    摘要翻译: 可以减少封闭结构部分的子部件的数量和用于制造封闭结构部件的步骤数量,因此可以有效地制造封闭结构部件。 在折边加压步骤中,冲头进一步下降,并且一对凸缘部分插入狭缝间隙。 折弯叉弯曲,每个折边叉将三角法兰部分夹在中间。 作为两个凸缘部之一的凸缘部与另一个凸缘部接合。 同时,一对冲压成形面冲压金属板,并对坯料的一对肩部进行压制成形为预定的形状。 凸缘部分可以使用折边叉固定到另一个凸缘部分。 坯料的一对肩部可以压制成预定的形状。

    Laminated piezoelectric device
    7.
    发明授权
    Laminated piezoelectric device 有权
    层压式压电装置

    公开(公告)号:US07656077B2

    公开(公告)日:2010-02-02

    申请号:US10596475

    申请日:2004-12-17

    IPC分类号: H01L41/047

    摘要: A laminated piezoelectric device obtained by alternately laminating the piezoelectric layers containing Pb and the conducting layers containing palladium as a conducting component, wherein the piezoelectric layer formed between the two conducting layers has layer regions where Pb and Pd are mixed together in the interfacial portions thereof relative to the conducting layers, the layer regions having a thickness of not larger than 3% of the thickness of the piezoelectric layer. The laminated piezoelectric device is formed by co-firing the Pb-containing piezoelectric layers and the palladium (Pd)-containing layers, the piezoelectric layers therein having a large insulation resistance and good piezoelectric characteristics.

    摘要翻译: 通过交替层叠含有Pb的压电层和含有钯的导电层作为导电成分而获得的叠层压电元件,其中形成在两个导电层之间的压电层具有其相互界面部分中Pb和Pd混合在一起的层区域 对于导电层,层区域的厚度不大于压电层的厚度的3%。 叠层压电元件通过共烧烧含有Pb的压电层和含钯(Pd)的层,其中具有绝缘电阻大的压电层和良好的压电特性而形成。

    Steel pipe having high ductility and high strength and process for production thereof
    8.
    发明授权
    Steel pipe having high ductility and high strength and process for production thereof 有权
    具有高延展性和高强度的钢管及其生产方法

    公开(公告)号:US06331216B1

    公开(公告)日:2001-12-18

    申请号:US09214226

    申请日:1998-12-30

    IPC分类号: C21D713

    摘要: The steel pipe has a structure composed mainly of ferrite or ferrite plus pearlite or ferrite plus cementite. The steel pipe is characterized by grain size not greater than 3 &mgr;m, preferably not greater than 1 &mgr;m, elongation greater than 20%, tensile strength (TS:MPa) and elongation (E1:%) whose product is greater than 10000, and percent ductile fracture greater than 95%, preferably 100%, measured by Charpy impact test on an actual pipe at −100° C. The structure is characterized by C: 0.005-0.03%, Si: 0.01-3.0%, Mn: 0.01-2.0%, and Al: 0.001-0.10% on a weight basis, and is composed of ferrite or ferrite and a secondary phase, with ferrite grains being not greater than 3 &mgr;m and the secondary phase having an areal ratio not more than 30%. A steel pipe stock having the above-mentioned composition is heated at a temperature of (Ac1+50° C.) to 400° C. and subsequently reduced at a rolling temperature of (Ac1+50° C.) to 400° C. such that the cumulative reduction of diameter is greater than 20%. The reducing is preferably performed such that at least one of rolling passes reduces the diameter by more than 6% per pass. The steel pipe will have high ductility and high strength and will be superior in toughness and stress corrosion cracking resistance, if the content of C, Si, Mn, and other alloying elements is limited low and reducing is performed at the temperature specified above. The resulting steel pipe has good fatigue resistance and is suitable for use as line pipe.

    摘要翻译: 钢管具有主要由铁素体或铁素体加珠光体或铁素体和渗碳体组成的结构。 钢管的特征在于,其粒径不大于3μm,优选不大于1μm,伸长率大于20%,拉伸强度(TS:MPa)和伸长率(E1:%)大于10000, 延性断裂大于95%,优选100%,通过夏比冲击试验在-100℃的实际管上测量。该结构的特征在于C:0.005-0.03%,Si:0.01-3.0%,Mn:0.01-2.0 %,Al:0.001-0.10%,由铁素体或铁素体和二次相组成,铁素体晶粒不大于3μm,第二相的面积比不大于30%。 将具有上述组成的钢管坯料在(Ac1 + 50℃)的温度下加热至400℃,随后在(Ac1 + 50℃)的轧制温度下降低至400℃。 使得直径的累积减小大于20%。 优选地进行还原,使得至少一个轧制通道将直径每次通过减少6%以上。 如果C,Si,Mn和其他合金元素的含量低,并且在上述规定的温度下进行还原,则钢管将具有高延展性和高强度,并且在韧性和耐应力腐蚀开裂性方面优异。 所得钢管具有良好的抗疲劳性能,适用于管线管。

    Steel sheet for automobiles having excellent impact resistance and
method of manufacturing the steel sheet
    9.
    发明授权
    Steel sheet for automobiles having excellent impact resistance and method of manufacturing the steel sheet 失效
    具有优异抗冲击性的汽车用钢板和钢板的制造方法

    公开(公告)号:US5558727A

    公开(公告)日:1996-09-24

    申请号:US393445

    申请日:1995-02-23

    摘要: A high strength steel sheet for automobiles which exhibits excellent press-formability strength against impact resistance at a high strain rate is hot rolled under specific conditions, or is cold rolled from hot rolled sheet which is prepared under conventional conditions, with the cold rolled steel being annealed under specific conditions. The steel sheet comprises 0.010-0.10 wt % of C, not greater than 1.50 wt % of Si, 0.50-3.00 wt % of Mn, not greater than 0.010 wt % of S and 0.01-0.1 wt % of Al, and one kind or two kinds selected from 0.05-0.15 wt % of P and 0.5-1.5 wt % of Cr, and the balance being Fe and inevitable impurities and having a structure mainly composed of 2-30 vol % of martensite phase and a ferrite phase containing a solution C not greater than 0.0010 wt %.

    摘要翻译: 用于汽车的高强度钢板在高应变率下表现出优异的耐冲击强度,在特定条件下进行热轧,或者由常规条件下制备的热轧板进行冷轧,冷轧钢为 在特定条件下退火。 该钢板包含0.010-0.10重量%的C,不大于1.50重量%的Si,0.50-3.00重量%的Mn,不大于0.010重量%的S和0.01-0.1重量%的Al,以及一种或 两种选自P为0.05-0.15重量%和Cr为0.5-1.5重量%,余量为Fe和不可避免的杂质,主要由2-30体积%的马氏体相组成的结构和含有溶液的铁素体相 C不大于0.0010重量%。

    Closed structure parts, method and press forming apparatus for manufacturing the same
    10.
    发明授权
    Closed structure parts, method and press forming apparatus for manufacturing the same 有权
    封闭结构件,制造方法和冲压成形装置

    公开(公告)号:US08844581B2

    公开(公告)日:2014-09-30

    申请号:US13120589

    申请日:2009-09-24

    摘要: The number of sub-parts of a closed structure part and the number of steps for manufacturing the closed structure part can be reduced and, therefore, the closed structure part can be efficiently manufactured. In a hemming press step, a punch is further lowered, and a pair of flange portions is inserted into a slit clearance. Hemming prongs are bent and each of the hemming prongs sandwiches the flange portion. The flange portion, which is one of the two flange portions, is joined to the other flange portion. At the same time, a pair of press forming surfaces of the punch presses a metal plate and performs press-forming on a pair of shoulder portions of a blank into a predetermined shape. The flange portion can be fixed to the other flange portion using the hemming prongs. The pair of shoulder portions of the blank can be press-formed into the predetermined shape.

    摘要翻译: 可以减少封闭结构部分的子部件的数量和用于制造封闭结构部件的步骤数量,因此可以有效地制造封闭结构部件。 在折边加压步骤中,冲头进一步下降,并且一对凸缘部分插入狭缝间隙。 折弯叉弯曲,每个折边叉将三角法兰部分夹在中间。 作为两个凸缘部之一的凸缘部与另一个凸缘部接合。 同时,一对冲压成形面冲压金属板,并对坯料的一对肩部进行冲压成形为规定形状。 凸缘部分可以使用折边叉固定到另一个凸缘部分。 坯料的一对肩部可以压制成预定的形状。