公开(公告)号：EP1702903A1

公开(公告)日：2006-09-20

申请号：EP04807776.2

申请日：2004-12-24

申请人： HITACHI METALS, LTD.

发明人： TAKAHASHI, Masahiro ,  TAKANO, Syuichi

IPC分类号： C04B35/38 ,  H01F1/34 ,  H01F41/02

CPC分类号： C04B35/2658 ,  C04B2235/3208 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3263 ,  C04B2235/3284 ,  C04B2235/3409 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/83 ,  C04B2235/96 ,  H01F1/344 ,  H01F41/0246

摘要： A sintered ferrite body having a main composition comprising 63-80% by mol of Fe 2 O 3 , and 3-15% by mol of ZnO, the balance being manganese oxide; R cal determined from the Fe 2 O 3 content X (% by mol) by the formula (1) of R cal = [200(X-50)]/(3X), and the ratio R (%) of Fe 2+ per the total amount of Fe in the sintered body meeting the condition of R cal - 2.0 ≤ R ≤ R cal + 0.3; and the sintered body having a density of 4.9 g/cm 3 or more.

摘要翻译： 一种烧结铁氧体，其主要组成为：Fe 3 O 3的比例为63〜80摩尔％，ZnO为3〜15摩尔％，余量为氧化锰; 通过R cal = [200（X-50）] /（3X）的式（1）从Fe 2 O 3含量X（摩尔％）测定的R cal和Fe 2+的比例R（％） 满足R cal-2.0‰¤R‰R cal + 0.3的条件下烧结体中Fe的总量; 烧结体的密度为4.9g / cm 3以上。

公开(公告)号：EP1702903B1

公开(公告)日：2012-02-08

申请号：EP04807776.2

申请日：2004-12-24

申请人： HITACHI METALS, LTD.

发明人： TAKAHASHI, Masahiro ,  TAKANO, Syuichi

IPC分类号： C04B35/38 ,  H01F1/34 ,  H01F41/02

CPC分类号： C04B35/2658 ,  C04B2235/3208 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3263 ,  C04B2235/3284 ,  C04B2235/3409 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/83 ,  C04B2235/96 ,  H01F1/344 ,  H01F41/0246

摘要： A ferrite sintered compact, which has a primary composition containing 63 to 80 mole % of Fe2O3, 3 to 15 mole % of ZnO and the balanced amount of manganese oxides, wherein Rcal - 2.0 ≤ R ≤ Rcal + 0.3 is satisfied where Rcal is determined by the formula (1): Rcal = [200(X - 50)]/(3X), where X is a content (mole %) of Fe2O3, and R (%) is a proportion of Fe2+ in the total amount of Fe in the sintered compact, and wherein the sintered compact has a density of 4.9 g/cm3 or more.