公开(公告)号：US06428633B1

公开(公告)日：2002-08-06

申请号：US09174848

申请日：1998-10-19

申请人： Tadashi Kasuya ,  Shigeru Ohkita ,  Masao Fuji ,  Naoki Saitou ,  Junichi Kobayashi ,  Toshihiko Chiba

发明人： Tadashi Kasuya ,  Shigeru Ohkita ,  Masao Fuji ,  Naoki Saitou ,  Junichi Kobayashi ,  Toshihiko Chiba

IPC分类号： C22C3808

CPC分类号： C22C38/46 ,  B23K33/00 ,  B23K33/004 ,  B23K35/3066 ,  B23K35/3086 ,  C22C38/08 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50

摘要： In order to conduct welding so that the welded steel shows a decreased residual stress after welding without a post treatment such as a PWHT, the steel for welded structures and the welding wire of the present invention starts a transformation from austenite into martensite at a temperature (Ms temperature) from at least 200° C. to up to 350° C., and has a yield strength from at least 60 kg/mm2 to up to 120 kg/mm2 at the transformation starting temperature. The multipass welding process of the present invention comprises forming a weld metal having a Ms temperature of 150° C. to 300° C., and TIG remelt-run welding the surface of the final layer.

摘要翻译： 为了进行焊接，焊接后的焊接钢在PWHT等后处理中显示出残留应力降低，本发明的焊接结构用钢和焊丝开始在温度（奥氏体）向奥氏体转变为马氏体 Ms温度）从至少200℃至高达350℃，并且在转变开始温度下的屈服强度从至少60kg / mm 2至高达120kg / mm 2。 本发明的多焊接方法包括形成Ms温度为150℃至300℃的焊接金属，并且TIG重熔焊接最终层的表面。

公开(公告)号：US4482003A

公开(公告)日：1984-11-13

申请号：US368446

申请日：1982-04-14

申请人： Taketo Nakano ,  Masao Fuji ,  Shozo Mizoguchi

发明人： Taketo Nakano ,  Masao Fuji ,  Shozo Mizoguchi

IPC分类号： B22D11/10 ,  B22D11/108 ,  B22D11/11 ,  B22D11/111 ,  B22D11/128 ,  B22D11/20 ,  B22D11/16

CPC分类号： B22D11/111 ,  B22D11/11

摘要： In a method for continuous casting of steel, an improvement which is constituted by carrying out the continuous casting process while the thickness of a molten mold powder pool adjacent to the molten steel melt within a continuous casting mold is maintained at a desired preset value, and whenever the actual value deviates from the preset value, the continuous casting can still be continued by adjusting the casting conditions or by selecting a powder appropriate for the casting conditions. The method produces a casting requiring no subsequent processing to remove defects.

摘要翻译： 在连续铸造钢的方法中，通过连续铸造工艺构成的改进，同时在连续铸造模具内熔融的熔融模具熔池的厚度保持在期望的预设值，并且 每当实际值偏离预设值时，连续铸造仍然可以通过调整铸造条件或选择适合于铸造条件的粉末来继续。 该方法产生不需要后续处理以去除缺陷的铸件。