利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

8 条记录 (耗时 0.021 秒)

    High-efficiency fillet welding method for steel plate
    1.
    发明授权
    High-efficiency fillet welding method for steel plate 失效
    钢板高效圆角焊接方法

    公开(公告)号：US5171958A

    公开(公告)日：1992-12-15

    申请号：US744328

    申请日：1991-08-13

    申请人： Tadamasa Yamaguchi ,  Yoshimitsu Meguro ,  Saburo Hayashi ,  Matsushige Nakajima

    发明人： Tadamasa Yamaguchi ,  Yoshimitsu Meguro ,  Saburo Hayashi ,  Matsushige Nakajima

    IPC分类号： B23K9/18 ,  B23K35/30 ,  B23K35/362

    CPC分类号： B23K9/188 ,  B23K35/3073 ,  B23K35/362

    摘要： A high-efficiency fillet welding method for conducting, without edge preparation, T-shape fillet welding of thick steel webs having a C content not more than 0.21 wt %. The welding is conducted by using a leading electrode (L) and a trailing electrode (T) composed of wires of about 4.8 to 6.4 mm diameter and containing C in an amount which meets the condition of formula (1), as well as 1.50 to 2.50 wt % of Mn. The welding is executed in such a manner that the ratio I.sub.T /I.sub.L of the current I.sub.T supplied to the trailing electrode (T) to the current I.sub.L supplied to the leading electrode (L) ranges from 0.75 to 1.00. The flux used in the welding is a bonded flux containing 60 to 91 wt % in total of SiO.sub.2, MgO and CaO, 5 to 30 wt % in total of TiO.sub.2, Al.sub.2 O.sub.3 and CaF.sub.2, 2 to 8 wt % of metal powder, said flux containing a carbonate gas-forming component in an amount to generate 2 to 10 wt % of gases by thermal decomposition of said carbonate during welding, and the balance incidental impurities, the flux having a bulk specific gravity of 0.80 to 1.20 g/cm.sup.3 :0.39C.sub.WIRE 0.39C.sub.WEB +0.22C.sub.FLANGE .ltoreq.0.135 (1)whereC.sub.WIRE is the C content of the wire (wt %),C.sub.WEB is the C content of the web (wt %) and is .ltoreq.0.21, andC.sub.FLANGE is the C content of the flange (wt %) and is .ltoreq.0.21.

    摘要翻译： 一种高效角焊接方法，用于对C含量不超过0.21重量％的厚钢网进行T型角焊焊接，无需边缘准备。 通过使用由直径约4.8至6.4mm的线构成的包含C的量的前导电极（L）和后端电极（T）进行焊接，其量为满足式（1）的条件，以及1.50至 2.50重量％的Mn。 以如下方式执行焊接：向提供给引导电极（L）的电流IL提供给后端电极（T）的电流IT的比值IT / IL为0.75至1.00。 焊接中使用的焊剂是含有60〜91重量％的SiO 2，MgO和CaO，5.0〜30重量％的TiO 2，Al 2 O 3和CaF 2，2〜8重量％的金属粉末，所述焊剂 含有碳酸盐气体形成组分，其量通过在焊接期间所述碳酸酯的热分解而产生2至10重量％的气体，并且平衡附带的杂质，堆积比重为0.80至1.20g / cm 3的通量为0.39 CWIRE0.39CWEB + 0.22CFLANGE

    Tanning method
    2.
    发明授权
    Tanning method 失效
    鞣制方法

    公开(公告)号：US4314803A

    公开(公告)日：1982-02-09

    申请号：US187857

    申请日：1979-10-23

    申请人： Tohru Okabe ,  Shigeaki Mizutani ,  Saburo Hayashi

    发明人： Tohru Okabe ,  Shigeaki Mizutani ,  Saburo Hayashi

    IPC分类号： C14C1/08 ,  C14C3/06

    CPC分类号： C14C3/06 ,  C14C1/08

    摘要： By subjecting a hide which has completed beamhouse work to a pickling treatment in the presence of urotropin (hexamethylenetetramine) and then to a chrome-tanning treatment, pH control of chrome-tanning bath becomes simpler and easier, the combination between hide and basic chrome complex increases, and the amount of residual chromium in the waste water can be minimized. Further, by treating the formed leather which has completed tanning treatment with ammonia or ammonium salt of weak acid in the chrome bath after use, the workability in the finishing steps improves, quality of the leather additionally improves, and the chromium content of the residual solution can be made nearly zero.

    摘要翻译： 通过使已经完成的波纹加工作业的皮革在泌乳素（六亚甲基四胺）存在下进行酸洗处理，然后进行铬鞣处理，铬鞣浴的pH控制变得更简单和容易，皮革和碱性铬复合物 可以减少废水中的残留铬的量。 此外，通过在使用后在铬浴中用氨或弱酸铵盐处理已经完成了鞣制处理的成形皮革，在精加工步骤中的可加工性提高，皮革质量进一步提高，残留溶液的铬含量 可以几乎为零。

    Process for preparing catalysts for removal of nitrogen oxides
    6.
    发明授权
    Process for preparing catalysts for removal of nitrogen oxides 失效
    制备催化剂去除氮氧化物的方法

    公开(公告)号：US4152296A

    公开(公告)日：1979-05-01

    申请号：US865802

    申请日：1977-12-30

    申请人： Thoru Okabe ,  Saburo Hayashi

    发明人： Thoru Okabe ,  Saburo Hayashi

    IPC分类号： B01D53/94 ,  B01D53/86 ,  B01J23/22 ,  B01J27/02 ,  B01J21/00 ,  C01B17/20

    CPC分类号： B01D53/8628 ,  B01J23/22

    摘要： A catalyst for removal of nitrogen oxides which shows extremely good catalytic activity and is excellent in durability and is low in the activity of oxidizing SO.sub.2 into SO.sub.3 be prepared at a low cost by impregnating a titanium oxide carrier with a vanadium sulfate, a vanadyl sulfate or a mixture thereof and then reacting a mixed gas consisting of 0.05 to 100% by mole of ammonia and 99.95 to 0% by mole of an inert gas which is inert to both ammonia and vanadium and vanadyl sulfates with the impregnated carrier while the reaction mixture is maintained at a temperature of 300.degree. to 520.degree. C., and preferably 370.degree. to 450.degree. C., or by shaping a mixture of titanium oxide and a vanadium sulfate, a vanadyl sulfate or a mixture thereof into a desired shape and then reacting a mixed gas consisting of 0.05 to 100% by mole of ammonia and 99.95 to 0% by mole of an inert gas which is inert to both ammonia and vanadium and vanadyl sulfates with the shaped mixture while the reaction mixture is maintained at a temperature of 300.degree. to 520.degree. C., and preferably 370.degree. to 450.degree. C.

    Process for obtaining high concentration argon by pressure-swing-adsorption
    7.
    发明授权
    Process for obtaining high concentration argon by pressure-swing-adsorption 失效
    通过变压吸附获得高浓度氩气的方法

    公开(公告)号：US4529412A

    公开(公告)日：1985-07-16

    申请号：US552895

    申请日：1983-11-17

    申请人： Saburo Hayashi ,  Hiroo Tsuchiya ,  Kazuo Haruna

    发明人： Saburo Hayashi ,  Hiroo Tsuchiya ,  Kazuo Haruna

    IPC分类号： B01D53/04 ,  C01B13/02 ,  C01B21/04 ,  C01B23/00

    CPC分类号： C01B23/00 ,  B01D53/047 ,  B01D2256/18

    摘要： A process for obtaining high concentration argon from air by means of pressure-swing-adsorption, characterized by passing air through a zeolite molecular sieve-packed adsorption apparatus and a carbon molecular sieve-packed adsorption apparatus in this order, subjecting the air to pressure-swing-adsorption operation independently in the above pieces of adsorption apparatus, thereby obtaining concentrated argon and high purity oxygen simultaneously.

    摘要翻译： 通过变压吸附从空气中获得高浓度氩的方法，其特征在于使空气依次通过沸石分子筛填充吸附装置和碳分子筛填充吸附装置， 在上述吸附装置中独立地进行摆动吸附操作，从而同时获得浓氩和高纯氧。