公开(公告)号：US20150228387A1

公开(公告)日：2015-08-13

申请号：US14406288

申请日：2013-07-09

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

发明人： Wataru Urushihara ,  Mikako Takeda ,  Mamoru Hosokawa ,  Hirofumi Hojo ,  Tomotsuna Kamijo

IPC分类号： H01F1/24 ,  B22F3/02 ,  H01F1/26 ,  H01F41/02 ,  H01F1/20 ,  C23C22/07 ,  H01F1/147

CPC分类号： H01F1/24 ,  B22F1/0062 ,  B22F1/02 ,  B22F3/02 ,  C22C2202/02 ,  C23C22/07 ,  C23C22/08 ,  C23C22/23 ,  H01F1/147 ,  H01F1/20 ,  H01F1/26 ,  H01F3/08 ,  H01F41/0246

摘要： A powder for a powder magnetic core, being composed of iron-base soft magnetic powder particles which each have a phosphoric acid-based chemical conversion coating on the surface. In this powder, the maximum thickness of the phosphoric acid-based chemical conversion coating is 20 to 200 nm, and recessed portions are formed on the surface of the chemical conversion coating with the total area of openings of the recessed portions being 0.5 to 50% by area relative to the total area of the observation visual fields, as determined by observing ten or more parts of the surface of the phosphoric acid-based chemical conversion coating through a scanning electron microscope with a magnification of 10000× or more.

摘要翻译： 粉末磁芯用粉末，由表面上具有磷酸系化学转化膜的铁基软磁性粉末颗粒构成。 在该粉末中，磷酸系化学转化膜的最大厚度为20〜200nm，在化学转化膜的表面形成有凹部，凹部的开口总面积为0.5〜50％ 相对于观察视野的总面积，通过用10000倍以上的倍率的扫描电子显微镜观察磷酸系化学转化膜的表面的10个以上的部分来测定。

公开(公告)号：US20140183402A1

公开(公告)日：2014-07-03

申请号：US14124866

申请日：2012-06-15

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

发明人： Mamoru Hosokawa ,  Wataru Urushihara ,  Takeshi Ohwaki ,  Tomotsuna Kamijo ,  Hirofumi Hojo

IPC分类号： H01F1/20 ,  H01F41/02 ,  H01F1/24

CPC分类号： H01F1/20 ,  B22F2998/10 ,  C22C33/02 ,  H01F1/24 ,  H01F1/26 ,  H01F27/255 ,  H01F41/02 ,  H01F41/0246 ,  B22F1/02 ,  B22F3/02 ,  B22F2003/248

摘要： Disclosed is an iron-based soft magnetic powder for dust core use, which includes an iron-based soft magnetic matrix powder and a phosphate conversion coating on a surface of the matrix powder. The phosphate conversion coating contains nickel element and has an aluminum content of equal to or less than that in the matrix powder. The iron-based soft magnetic powder has such excellent heat resistance as to maintain electrical insulation at satisfactory level even after subjected to a high-temperature heat treatment.

摘要翻译： 公开了一种用于粉尘芯的铁基软磁性粉末，其包括在基质粉末的表面上的铁基软磁性基质粉末和磷酸盐转化膜。 磷酸盐转化涂层含有镍元素，并且铝含量等于或小于基质粉末中的铝含量。 铁基软磁性粉末具有如此优异的耐热性，即使在进行高温热处理后也将电绝缘性保持在令人满意的水平。

公开(公告)号：US20140377123A1

公开(公告)日：2014-12-25

申请号：US14370877

申请日：2013-02-25

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd)

发明人： Hidenori Nako ,  Takuya Kochi ,  Wataru Urushihara ,  Munenobu Sato ,  Yoshihiko Kitagawa

IPC分类号： B23K35/30

CPC分类号： B23K35/3093 ,  B23K9/025 ,  B23K9/173 ,  B23K9/23 ,  B23K33/004 ,  B23K35/0255 ,  B23K35/0266 ,  B23K35/3053 ,  B23K35/3066 ,  B23K35/3073 ,  B23K35/3086 ,  B23K2103/04 ,  C21D2211/001 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/44 ,  C22C38/50 ,  C22C38/58

摘要： The present invention is a weld metal formed by gas shielded arc welding using a flux cored wire, the welded metal having a predetermined chemical composition, residual austenite particles being present in an amount of at least 2500 particles/mm2, and the volume fraction of residual austenite particles being at least 4.0%.

摘要翻译： 本发明是使用药芯焊丝通过气体保护电弧焊形成的焊接金属，焊接金属具有预定的化学组成，残余奥氏体颗粒以至少2500个/ mm 2的量存在，并且剩余的体积分数 奥氏体颗粒为至少4.0％。