巻号一覧
1965 巻 (1965)
- 43 号 p. 2-
- 42 号 p. 3-
- 41 号 p. 3-
1965 巻, 41 号
選択された号の論文の5件中1～5を表示しています
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東海道新幹線用主電動機, MT200形用ブラシ熊谷 正博, 国分 欣治1965 年 1965 巻 41 号 p. 3-10
発行日: 1965/06/10
公開日: 2011/03/01
ジャーナル フリーMain traction motors MT 200 for the New Tokaido Line, which are used at high speed and high current density in pulslating or direct current, are carefully designed in order to keep good commutation and the brushes used are split ones made from soot. As tempered colour was considerably noticed at the pig tails of brushes in the car running test, unbalanced current among brushes was measured in the original machine with the voltage drop method at stand test of factories.
Obtained results are followed;
(1) Unbalanced current between brush splits is higher at the leading split than at the trailing one, and indicates considerably larger value than the general unbalanced current among parallel brushes. This causes are assumed mainly to be the motor design constructed of over-commutation.
(2) Though sliding charactristics of split brushes depend upon each split moving independently, this independency causes unbalnced current.
(3) Since the unbalanced current in split brushes is unavoidable, selection of brush current density and fastening method of brush pig tails should be designed move carefully.抄録全体を表示PDF形式でダウンロード (968K) -
上野 敦行, 野々山 倍弘, 岡 俊平1965 年 1965 巻 41 号 p. 11-17
発行日: 1965/06/10
公開日: 2011/03/01
ジャーナル フリーIn order to find out profitable uses for the carbon black, produced in the Texaco Process Furnaces, the behaviors and properties under ball mill treatments were studied, and compared with those of acetylene black, which in commonly used in the dry battery industry.
The following 6 properties of both carbons crushed by ball mill were studied; (1) initial apparent specific volume υo, (2) apparent specific volume after tapping 100 times υt, (3) apparent specific volume compressed statically υc, (4) oil adsorption, (5) electric resistance ρ and (6) observation of the configuration of the “Structure” by an electron micrography, and the structure of both carbons were discussed.抄録全体を表示PDF形式でダウンロード (4553K) -
セリサイトをはじめ, 2, 3のアルミノケイ酸塩鉱物の黒鉛化触媒作用石川 忠夫, 鈎 三郎, 水谷 保男, 吉沢 四郎1965 年 1965 巻 41 号 p. 18-25
発行日: 1965/06/10
公開日: 2011/03/01
ジャーナル フリーWe planned to lower the graphitization temperature by relying on the action of catalyst.
Our observation on aluminosilicate minerals is based on the fact that the graphitelike lustre of the smonked tile produced with the body, the surface of which is smeared with the clay containing micaceous minerals such as sericite, is better than that of one produced without such a clay.
In case of sericite, the following were obtained.
Its own action increased suddenly at about 1800°C and disappeared already at 2000°C, the temperature at which the graphitization of the simple coke not containing sericite increased suddenly, but the effect obtained was equivalent to the heat-treatment of 2500°C without sericite. It was found that sericite is effective to the contraction of the interlayer spacing, d, and to the growth of the average diameter of an hexagonal network layer, La. In the range of from 2000° to 2400°C, the best result was observed by applying about 8% of sericite. Both the uncalcined sericite and the anhydrous one prepared by calcination showed no difference in the effects on the graphitization and on the physical properties of the produced graphite. The mixture of reagents of the same compositions as sericite was not effective. Sericite also exhibited the purifying action. Next the higher graphitized product was trial manufactured with sericite on a large scale by the industrial process in haste; thus it was confirmed that the industrial application of sericite is possible.
Lepidolite of the same mica group as sericite, petalite, and kaolinite were effective, too.
The following were concluded from the above facts.
The catalytic action may be effective in the temperature range which is necessary to complete the final carbonization of the residual incomplete parts in the structure of coke which were not carbonized completely yet at the coking temperature. The hexagonal network layer structure of aluminosilicate may act effectively on the growth of the layer structure of graphite. The increase of graphitization and purification established during the graphitization process may connect closely each other.抄録全体を表示PDF形式でダウンロード (2738K) -
矢島 聖使, 平井 敏雄1965 年 1965 巻 41 号 p. 26-35
発行日: 1965/06/10
公開日: 2011/07/05
ジャーナル フリーPDF形式でダウンロード (12308K) -
大谷 杉郎1965 年 1965 巻 41 号 p. 36-38
発行日: 1965/06/10
公開日: 2010/06/28
ジャーナル フリーPDF形式でダウンロード (408K)
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