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    • 4. 发明授权
    • Welding wire for use in submerged arc welding of Cr-Mo steels
    • 用于Cr-Mo钢的埋弧焊的焊丝
    • US4561888A
    • 1985-12-31
    • US545240
    • 1983-10-25
    • Naoki OkudaMinoru YamadaFumito Yoshino
    • Naoki OkudaMinoru YamadaFumito Yoshino
    • B23K35/30C22C38/44
    • B23K35/308
    • 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.
    • 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。
    • 10. 发明授权
    • Multiple electrode submerged arc welding method
    • 多电极埋弧焊法
    • US4214141A
    • 1980-07-22
    • US974546
    • 1978-12-29
    • Naoki OkudaAkira Nakano
    • Naoki OkudaAkira Nakano
    • B23K9/18B23K35/362
    • B23K35/362B23K9/188
    • A submerged arc welding method and more specifically, a multiple electrode welding method is disclosed wherein welding is performed by arranging electrodes in such a manner that the distance becomes at least 300 mm between a first molten pool formed by multilayer welding or by a single or plural electrodes preceding along the weld line and a subsequent molten pool formed by a single subsequent electrode or plural subsequent electrodes, as well as a submerged arc welding method which is characterized in that there is formed a slag having the components listed below on the weld metal formed by an electrode or a preceding electrode forming a preceding layer, and welding is carried out as such, without removing the slag, using an electrode or a subsequent electrode forming a subsequent layer;TiO.sub.2 : 20-65% by weight (up to 60% by weight, based on the total TiO.sub.2 amount, of which may be substituted by ZrO.sub.2);CaF.sub.2 : 9.6-40% by weight, andAl.sub.2 O.sub.3 : 10-56% by weight.
    • 一种埋弧焊方法,更具体地说,公开了一种多电极焊接方法,其中通过以如下方式布置电极来进行焊接,即在通过多层焊接形成的第一熔池之间的距离至少为300mm,或通过单个或多个 沿着焊接线前方的电极以及由单个随后的电极或多个随后的电极形成的后续熔池,以及浸没电弧焊接方法,其特征在于在形成的焊接金属上形成具有下列组分的炉渣 通过形成前一层的电极或前面的电极,并且使用形成后续层的电极或后续电极,不用去除炉渣进行焊接, TiO 2:20-65重量%(高达60重量%,基于TiO 2总量,其可以被ZrO 2取代); CaF 2:9.6〜40重量%,Al 2 O 3:10-56重量%。