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公开(公告)号：US5876618A
公开(公告)日：1999-03-02
申请号：US974190
申请日：1997-11-19
CPC分类号： C04B35/265 , H01F1/344
摘要： A Ni--Zn type ferrite has the composition represented by the general formula: Ni.sub.X Zn.sub.1-X Fe.sub.2-Y-Z Mn.sub.Y Zr.sub.Z O.sub.4 (0.55.ltoreq.X.ltoreq.0.80, 0.001.ltoreq.Y.ltoreq.0.20, 0.001.ltoreq.Z.ltoreq.0.04). The Ni--Zn type ferrite is formed with the step described below. A raw powder is first mixed for 64 hours and then fired at 850.degree. C. in an oxygen atmosphere for two hours. Next, the fired powder is crushed and then the crushed powder is again mixed. Then, a binder is added to the resulting powder, which is then press-formed under a pressure of 2.5 ton/cm.sup.2, and the press-formed powder is sintered at 1350.degree. C. for 5 hours in an oxygen atmosphere.
摘要翻译： Ni-Zn型铁氧体具有以下通式所示的组成：NiXZn1-XFe2-Y-ZMnYZrZO4（0.55≤X≤0.80,0.001,0.Y≤0.:0.,,,,,,,,,,,,,,,,,,,, = 0.04）。 通过下述步骤形成Ni-Zn型铁氧体。 首先将原料粉末混合64小时，然后在氧气氛中在850℃下烧制2小时。 接着，将烧成的粉末粉碎，然后粉碎的粉末再次混合。 然后，向所得粉末中加入粘合剂，然后在2.5吨/ cm2的压力下压制成型，将压制成形的粉末在氧气氛中在1350℃下烧结5小时。
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公开(公告)号：US5874020A
公开(公告)日：1999-02-23
申请号：US851716
申请日：1997-05-05
CPC分类号： H01F1/344 , C04B35/265
摘要： A Ni--Zn base ferrite is provided with a relatively small dielectric loss (tan.delta.(.epsilon.)) of the order of 10.sup.-3. Its saturation magnetization (4.pi.Ms) is relatively still high. A Ni--Zn base ferrite having a small dielectric loss (of the order of 10.sup.-3) can be obtained by proportioning raw materials to give a finished composition range of Ni.sub.X Zn.sub.1-X Fe.sub.2-Y-Z Mn.sub.Y M.sub.Z O.sub.4 where M: Ge and/or Sn, 0.55.ltoreq.X.ltoreq.1.00, 0.001.ltoreq.Y.ltoreq.0.36, and 0.002.ltoreq.Z.ltoreq.0.36, by calcination.
摘要翻译： Ni-Zn基铁素体具有10-3数量级的较小的介电损耗（tanδ（ε））。 其饱和磁化强度（4 pi Ms）相对较高。 可以通过配比原料得到Ni:Zi1-XFe2-Y-ZMnYMZO4的成品组成范围，其中M：Ge和/或Sn， 通过煅烧，0.55
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公开(公告)号：US5176341A
公开(公告)日：1993-01-05
申请号：US729295
申请日：1991-07-12
IPC分类号： B64F1/14
CPC分类号： B64F1/14 , Y10T24/3969
摘要： An airship yaw line tractor comprising: a yaw line connector for holding and releasing the yaw line of the airship through remote control; a winch for winding and unwinding a cable connected to the yaw line connector; and a control unit for automatically controlling the tensile force of the cable extending from the winch to the yaw line connector and automatically releasing the yaw line held by the yaw line connector in an emergency.
摘要翻译： 一种飞艇偏航线拖拉机，包括：偏航线连接器，用于通过遥控器保持和释放飞艇的偏航线; 用于卷绕和展开连接到偏航线连接器的电缆的绞盘; 以及控制单元，用于自动控制从绞盘延伸到偏航线连接器的电缆的拉力，并在紧急情况下自动释放由偏航线连接器保持的偏航线。
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公开(公告)号：US4832908A
公开(公告)日：1989-05-23
申请号：US160782
申请日：1988-02-19
CPC分类号： C22C38/08
摘要： A novel low thermal expansion cast alloy is provided. The alloy consists of, by percents by weight, 0.02 to 0.25% of C, 30.5 to 33.3% of Ni, 4.0 to 6.0% of Co, 0.005 to 0.70% of Mn, 0.005-0.50% of Si and the balance substantially of Fe, with the proviso that % C.gtoreq.3.0285-0.0936 x % Ni (% C and % Ni are weight % of C and Ni). By such composition, micro-segregation of Ni can be reduced and the Ni content range showing the low thermal expansion coefficient can be broadened to an extent of substantially enabling mass production by a casting process in place of the conventional forging or rolling process. The average thermal expansion coefficient at the temperature range from - 50 to 120.degree. C. of the cast alloy is not more than 1.5.times.10.sup.-6 /.degree.C.
摘要翻译： 提供了一种新型的低热膨胀铸造合金。 该合金的重量百分比为0.02〜0.25％的C，30.5〜33.3％的Ni，4.0〜6.0％的Co，0.005〜0.70％的Mn，0.005〜0.50％的Si，余量基本上由Fe ，但条件是％C> = 3.0285-0.0936 x％Ni（％C和％Ni是C和Ni的重量％）。 通过这样的组成，可以减少Ni的微分离，并且可以将表现出低热膨胀系数的Ni含量范围扩大到通过铸造工艺代替常规锻造或轧制过程的大量生产的程度。 在铸造合金的-50〜120℃的温度范围内的平均热膨胀系数为1.5×10 -6 /℃以下。
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