发明名称 |
DEFLECTION RING OF SINTERED MgZn-FERRITE MATERIAL, CATHODE RAY TUBE COMPRISING SUCH A RING AND MOULDING MADE FROM THIS MATERIAL |
摘要 |
<p>The invention relates to a deflection ring of sintered MgZn-ferrite material. In accordance with the invention, this deflection ring is characterized in that the majority of the grains of the sintered material have a monodomain structure. By virtue thereof, a relatively small heat dissipation occurs in the ring when it is used in a cathode ray tube. The average grain size of the sintered MgZn-ferrite material is preferably 2.8 micrometers or less. MgZn-ferrite materials whose composition corresponds to the formulaMg1-zZnzFe2-yO4, wherein 0.1 < z < 0.4 and 0.01 < y < 0.3, have the additional advantage that they have a relatively high saturation magnetization and a relatively high electrical resistance. The invention also relates to a cathode ray tube comprising the above-mentioned deflection ring and to a moulding made from the above-mentioned MgZn-ferrite material.</p> |
申请公布号 |
WO9615543(A1) |
申请公布日期 |
1996.05.23 |
申请号 |
WO1995IB00920 |
申请日期 |
1995.10.25 |
申请人 |
PHILIPS ELECTRONICS N.V.;PHILIPS NORDEN AB |
发明人 |
VAN DER ZAAG, PIETER, JAN;VAN DER VALK, PIETER, JOHAN;DE WIT, HENDRIK, JAN |
分类号 |
C04B35/26;H01F1/34;H01F41/02;H01J29/76;(IPC1-7):H01J29/76 |
主分类号 |
C04B35/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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