Shielded metal arc welding electrode for Cr-Mo low alloy steels
    1.
    发明授权
    Shielded metal arc welding electrode for Cr-Mo low alloy steels 失效
    用于Cr-Mo低合金钢的屏蔽金属电弧焊接电极

    公开(公告)号:US4503129A

    公开(公告)日:1985-03-05

    申请号:US414938

    申请日:1982-09-03

    摘要: A shielded arc welding electrode containing in a core wire or a covering flux thereof alloy elements in the proportions satisfying the following conditions. ##EQU1## in which B.sub.w is a coefficient of yield in deposited metal of a wire-originating element, B.sub.f is a coefficient of yield in the deposited metal of a flux-originating element, [elementary symbol (%)].sub.w is the percentage by weight of a component element of the core wire to the total weight thereof, [elementary symbol(%)].sub.f is the percentage by weight of a component element of the flux to the total weight thereof, and A.sub.f is the flux ratio (the weight ratio of the applied flux to the total weight of the welding electrode).

    摘要翻译: 一种屏蔽电弧焊接电极,其以满足以下条件的比例在芯线或其覆盖助焊剂中包含合金元素。 其中Bw是有线元素的沉积金属的屈服系数,Bf是在线源元素的成品系数, 助熔剂元素的沉积金属[元素符号(%)] w是芯线的组分元素的重量占其总重量的重量百分比,[基本符号(%)] f是 助熔剂的总量的组成要素,Af是通量比(所施加的焊剂与焊接电极的总重量的重量比)。

    Image forming apparatus having a gripper portion
    2.
    发明授权
    Image forming apparatus having a gripper portion 失效
    具有夹持部的图像形成装置

    公开(公告)号:US5737667A

    公开(公告)日:1998-04-07

    申请号:US378355

    申请日:1995-01-25

    IPC分类号: G03G21/16 G03G21/00

    摘要: An image forming apparatus for forming an image on a recording medium, comprising a first frame, a second frame rotatable with respect to the first frame around a rotational center, and a gripper portion formed on the first frame at a position immediately below the hinge means, to be gripped for lifting and transmitting the image forming apparatus. The image forming apparatus can be made light weight and inexpensive, and stable transportation of the apparatus is ensured.

    摘要翻译: 一种用于在记录介质上形成图像的图像形成装置,包括第一框架,围绕旋转中心相对于第一框架可旋转的第二框架,以及在紧邻铰链装置下方的位置处形成在第一框架上的夹持部分 被夹持以提升和传送图像形成装置。 图像形成装置的重量轻且便宜,确保了设备的稳定运输。

    Image forming apparatus with developing device accommodating means
    6.
    发明授权
    Image forming apparatus with developing device accommodating means 失效
    具有显影装置容纳装置的图像形成装置

    公开(公告)号:US4841336A

    公开(公告)日:1989-06-20

    申请号:US165934

    申请日:1988-03-09

    IPC分类号: G03G15/01 G03G15/08

    CPC分类号: G03G15/0126 G03G15/08

    摘要: A multi-color image forming apparatus, for forming a superimposed multi-color image on a transfer material, includes: a latent image bearing member; device for forming a latent image on the image bearing member; plural developing devices containing different color developers for developing the latent image in different colors; device for accommodating the plural developing devices; guiding device for guiding the developing device between a first position within the accommodating device and a second position adjacent the image bearing member; driving device for moving the developing device between the first position and the second position for exchanging the developing device at the second position; device for discriminating the plural developing devices; and a second developing device disposed adjacent the image bearing member at a different position; wherein when plural colors are selected for development; a discrimination is made as to whether the developing device containing the developer of the selected color is at the first position or not, and if so, the developing device located at the first position is operated before the other of the plural developing devices, irrespective of the order of the selection.

    Baked flux for submerged arc welding
    7.
    发明授权
    Baked flux for submerged arc welding 失效
    埋弧焊用于埋弧焊

    公开(公告)号:US4764224A

    公开(公告)日:1988-08-16

    申请号:US68277

    申请日:1987-07-01

    CPC分类号: B23K35/362 B23K35/3602

    摘要: A baked flux of high basicity for submerged arc welding which has a chemical composition suitable for use in universal combination with various types of welding wires in welding low alloying steels. The baked flux reduces the oxygen content and diffusible hydrogen content of the weld metal to form a weld metal having a high toughness, enables forming regular beads without causing weld defects such as lack of fusion and slag inclusion, and facilitates welding work. The performance of baked fluxes is described in comparison with that of the conventional baked fluxes.

    摘要翻译: 用于埋弧焊的高碱度焙烧焊剂,其具有适用于焊接低合金钢的各种类型焊丝的通用组合的化学成分。 烘烤的焊剂降低焊接金属的氧含量和可扩散的氢含量,形成具有高韧性的焊接金属,能够形成规则的珠粒而不会引起诸如熔融缺陷和熔渣夹杂之类的焊接缺陷,并且便于焊接工作。 与常规焙烧焊剂相比,描述了烘烤焊剂的性能。

    Welding wire for use in submerged arc welding of Cr-Mo steels
    8.
    发明授权
    Welding wire for use in submerged arc welding of Cr-Mo steels 失效
    用于Cr-Mo钢的埋弧焊的焊丝

    公开(公告)号:US4561888A

    公开(公告)日:1985-12-31

    申请号:US545240

    申请日:1983-10-25

    IPC分类号: B23K35/30 C22C38/44

    CPC分类号: B23K35/308

    摘要: A welding wire for use in submerged arc welding of Cr-Mo steels comprising less than 0.25% C, less than 0.60% Si, 0.15-1.50% Mn, 0.50-10.0% Cr and 0.40-2.50% Mo on the basis of the weight ratio comprises 0.05-0.19% C, less than 0.60% Si, less than 1.6% Mn, 0.50-10.5% Cr and 0.30-2.50% Mo as the basic elements boron and nitrogen added thereto as the essential elements each in the range of 0.0001-0.25% B and 0.010-0.040% N; and at least one of titanium, zirconium and aluminum further incorporated therein each in the range of 0.01-0.30% Ti, 0.05-0.30% Zr and less than 0.40% Al, while being adjusting such that the sum of the elements: Ti+Al+Zr+10B lies within a range between 0.003-0.40% on the basis of the weight ratio. The welding wire of the novel composition can provide weld alloy steels with high strength and excellent toughness even at low temperature.

    摘要翻译: 一种用于Cr-Mo钢的埋弧焊的焊丝,其包含基于重量的小于0.25%C,小于0.60%Si,0.15-1.50%Mn,0.50-10.0%Cr和0.40-2.50%Mo 的比例包括0.05-0.19%C,小于0.60%Si,小于1.6%Mn,0.50-10.5%Cr和0.30-2.50%Mo作为基本元素添加硼和氮作为必需元素,各自在0.0001 -0.25%B和0.010-0.040%N; 进一步掺入钛,锆和铝中的至少一种,其中分别在0.01-0.30%的Ti,0.05-0.30%的Zr和小于0.40%的Al的范围内,同时进行调节,使得元素的总和:Ti + Al + Zr + 10B基于重量比在0.003-0.40%的范围内。 新型组合物的焊丝即使在低温下也能提供高强度和优异韧性的焊接合金钢。

    Method of vertical welding of aluminum and aluminum alloys
    9.
    发明授权
    Method of vertical welding of aluminum and aluminum alloys 失效
    铝和铝合金垂直焊接方法

    公开(公告)号:US4029933A

    公开(公告)日:1977-06-14

    申请号:US548624

    申请日:1975-02-10

    IPC分类号: B23K9/02 B23K9/23 B23K9/12

    摘要: A method of vertical welding of aluminum and aluminum alloys comprising welding Al or an Al alloy while oscillating in a welding groove an electrode in a closed pattern corresponding substantially to the groove shape, wherein the welding is conducted by using a welding current higher by 10 to 150 A than the base welding current at least during the course of oscillation of the electrode along the groove face of one of the materials to be welded while the electrode is pursuing courses of oscillation along both groove faces of the materials to be welded.

    摘要翻译: 一种铝和铝合金的垂直焊接方法,其特征在于,在焊接槽内以Al或Al合金的方式焊接以基本上与槽形状对应的封闭形式的电极,焊接时,使用10〜 至少在基板焊接电流时,电极沿着待焊接材料的槽面的振荡过程中,同时电极沿待焊接的材料的两个凹槽面进行振荡的过程。