公开(公告)号：US5698145A

公开(公告)日：1997-12-16

申请号：US230878

申请日：1994-04-20

申请人： Tetsu Narutani ,  Masakatsu Yamazaki ,  Keizou Okuno ,  Katsunobu Okutani ,  Kouzou Fujiwara

发明人： Tetsu Narutani ,  Masakatsu Yamazaki ,  Keizou Okuno ,  Katsunobu Okutani ,  Kouzou Fujiwara

IPC分类号： C04B35/26 ,  C04B35/38 ,  C04B35/64 ,  H01F1/34

CPC分类号： C04B35/2658 ,  C04B35/64

摘要： A method for sintering Mn--Zn ferrite green compacts is provided which includes a first heating step of raising the temperature from room temperature to 600.degree. C. within a period from 30 minutes to 5 hours, a second heating step of raising the temperature from 600.degree. C. to the sintering temperature and holding the sintering temperature until the start of cooling within a period shorter than 10 hours, and a cooling step of lowering the temperature to 150.degree. C. within a period longer than 3 hours, with the total period of the three steps being shorter than 20 hours. This method permits the efficient production in a short time of Mn--Zn ferrites having good magnetic properties.

摘要翻译： 提供一种用于烧结Mn-Zn铁氧体生坯的方法，其包括在30分钟至5小时内将温度从室温升至600℃的第一加热步骤，将温度从600℃升高的第二加热步骤 ℃至烧结温度，并保持烧结温度直到在短于10小时的时间内开始冷却，以及在超过3小时内将温度降至150℃的冷却步骤，总周期 这三个步骤短于20小时。 该方法允许在短时间内有效地生产具有良好磁性能的Mn-Zn铁氧体。

公开(公告)号：US4710481A

公开(公告)日：1987-12-01

申请号：US906487

申请日：1986-09-11

申请人： Toru Degawa ,  Gen Okuyama ,  Akio Hashimoto ,  Seiju Uchida ,  Kouzou Fujiwara ,  Makoto Ebata ,  Takashi Satou ,  Tohei Ototani

发明人： Toru Degawa ,  Gen Okuyama ,  Akio Hashimoto ,  Seiju Uchida ,  Kouzou Fujiwara ,  Makoto Ebata ,  Takashi Satou ,  Tohei Ototani

IPC分类号： C22C1/02 ,  C04B35/057 ,  C04B2/02

CPC分类号： C04B35/057 ,  Y10S29/045

摘要： Ti or a high-Ti alloy is melted in a container composed of high-purity CaO materials on its inner sides. The materials are composed of not less than 99% by weight of CaO, not more than 0.1% by weight of SiO.sub.2, not more than 0.02% by weight of Fe.sub.2 O.sub.3, and not more than 0.5% by weight in total of other metal oxides under a non-oxidizing atmosphere.CaO refractories for use in the melting of Ti or a high-Ti alloy contains not less than 99% by weight of CaO, not more than 0.1% by weight of SiO.sub.2, 0.02% by weight of Fe.sub.2 O.sub.3, and not more than 0.5% by weight of other metal oxides.

摘要翻译： Ti或高Ti合金在其内侧在由高纯度CaO材料构成的容器中熔融。 该材料由不低于99重量％的CaO，不超过0.1重量％的SiO 2，不超过0.02重量％的Fe 2 O 3和不超过0.5重量％的其它金属氧化物组成 非氧化气氛。 用于熔融Ti或高Ti合金的CaO耐火材料含有不小于99重量％的CaO，不超过0.1重量％的SiO 2，0.02重量％的Fe 2 O 3，不超过0.5重量％ 其他金属氧化物的重量。