著者

河村 驍

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.21, no.6, pp.373-383, 1935-06-25

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The development and progress of the iron and steel industry during last ten years is reviewed, giving frank criticism upon the policies carried during the period and concluding with future prospect of the industry. The statistical review of production, Consumption and import of finished as well as raw materials is also given.

著者

佐野 幸吉

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.76, no.2, 1990-02-01

著者

絹川 武良司

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.25, no.3, pp.163-174, 1939-03-25

著者

谷村 熈

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.67, no.3, pp.497-507, 1981-03-01

著者

永野 治

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.64, no.5, pp.659-663, 1978-04-01

被引用文献数

4

著者

佐々川 清

出版者

社団法人日本鉄鋼協会

雑誌

鉄と鋼 (ISSN:00211575)

巻号頁・発行日

vol.53, no.9, pp.1119-1129, 1967

被引用文献数

1

著者

杉本 惣吉

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.3, no.9, pp.九九〇-一〇〇五, 1917-09-25

著者

伊丹 哲 井川 良雄 尾崎 義正

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.73, no.13, 1987-09-04

著者

芹澤 正雄

出版者

社団法人日本鉄鋼協会

雑誌

鉄と鋼 (ISSN:00211575)

巻号頁・発行日

vol.73, no.10, pp.1281-1287, 1987

著者

松本 年男 安井 健一 津森 芳勝 西村 孝

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.72, no.5, 1986-03-04

著者

高瀬 孝次

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.18, no.12, pp.1333-1374, 1932-12-25

著者

小日山 直登

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.25, no.12, pp.1119-1125, 1939-12-25

著者

渡辺 ともみ

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.91, no.1, pp.108-115, 2005-01-01

参考文献数

34

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The traditional steel manufacturing (Tatara) of Japan which developed in the early modern times fell into the decline in the Meiji Period. On the other hand, because it is being made by reducing iron sand with charcoal, the amount of phosphorus and sulfur of Tatara iron is low. Therefore it was adopted as a raw material of the alloy steel at Naval Arsenal of the Meiji latter period. The purpose of the main subject is to explain that process.<BR>The quality which the navy demanded was limited to the speck of the low phosphorus. Then, the navy never tried to admit the cost which corresponded with that quality. The makers of Tatara iron had efforts to cope with a naval requirement. But, they had to give up their Tatara business suddenly. That was because naval warship manufacture stopped observing Washington disarmament treaty. They advanced all together to charcoal industry after that.

著者

高瀬 孝次

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.18, no.10, pp.1099-1130, 1932-10-25

著者

佐々木 直彦 堀井 胤匡 藤原 幹男 斎藤 英之 三澤 俊平

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.86, no.1, pp.45-50, 2000-01

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Micro-strucure, micro-hardness and micro-absorbed impact energy in the Japanese sword have been investigated to clarify excellent mechanical properties of the Japanese sword. The Japanese sword specimen used in the present research has been made by using TSUKURIKOMI process which combines four kinds of steels ; HAGANE (edge), SHINGANE (core), MUNEGANE (back) and KAWAGANE (side) steels, with different carbon contents. By this process, HASAKI (edge) side becomes high carbon steel and MUNE (back) side possesses low carbon steel. The cooling velocity in quenching of the Japanese sword is controlled by TSUCHIOKI treatment which coats the clay thinner in the HASAKI side and thicker in the MUNE side. The HASAKI side is quickly cooled and the MUNE side is slowly cooled. The micro-structure in the HASAKI side shows martensite while the MUNE side shows the coexist structure of ferrite and pearlite. The HASAKI side has a lower value while the MUNE side shows a higher value in the micro absorbed impact energies obtained with the 1.0 and 0.7mm square miniaturized specimens. It has been shown clearly that the TSUKURIKOMI and the TSUCHIOKI processes give the excellent gradated balance of strength-toughness to the Japanese sword. The ORIKAESHI (folding) forging has an effect both on the carbon content and as quenched hardness in HAGANE steel. The most suitable times of ORIKAESHI cycles which adjust to the carbon content of 0.55-0.60mass% and hardness of 800HV1 have been determined to be thirteen times. These times of ORIKAESHI cycles correspond to the optimum traditional cycles lying between twelve and fifteen times. The present research from the viewpoint of the metallurgy sheds light on the empirical rule in the traditional Japanese sword processing.

著者

小藪 重行

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.29, no.1, pp.54-67, 1943-01-25

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The principal causes of erosion in the gun-barrel bore are cracks and the deterioration caused by the action of the gun-powder gas, as well as abrasion due to projectiles passing through. The author investigated microspically and by X-rays the cracks and the characteristic-layer on the eroded surface of the bore. It was ascertained that the characteristic layer has a structure which has become martensitic due to the heating effect of the gun-powder gas. At the instant of discharge, the barrel, expands and contracts, and also the hard layer itse'f does so due to the heating effect of the gun-powder gas, so that innumerable number of cracks occurs on that layer by repetition of such actions. The gun-powder gas penetrates through these cracks and accelerates the erosion. Thus it was concluded that the action of the gun-powder gas is the fatal cause of the deformation of the bore by erosion.

著者

浜田 幸一 井坂 和実 土居 大治 米満 善久 岩崎 信吾

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.88, no.2, pp.66-72, 2002-02

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Clad steel sheet is formed by cladding different metals and used for the functional material, which has convenient characteristics of each metal. Especially, a lot of stainless steel/aluminum clad strip is produced for electromagnetic rice cookers which are in demand because of the higher thermal conductivity, having magnetism and corrosion resistance. For the demand, continuous cladding technology of the wide width stainless steel/aluminum strip has been developed by warm rolling after the rapid heating process. Recently, much higher uniformity for peeling strength is required as the market grows. So, a new heating process, in which uniform heat generation is achieved by the electric resistance of metals and the directly applied current, is developed in place of the conventional process of induction heating. After solving some technical problems about sparks and temperature uniformity, direct resistance heating equipment have installed in the manufacturing line. As the result, high-quality clad steel sheets, which have the uniform peeling strength, can be produced by the improvement of temperature deflection on rolling.

著者

辻畑 敬治 宮川 奨蔵 大坪 茂 大野 重治 花木 功

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.46, no.4, pp.455-460, 1960-04-01

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In line with the starting of experiments on the use of self-fluxing sinter in blast furnaces, the experimental production of lime sinter using 5&acd;10% of lime stone was conducted at Kukioka D. L. Sintering Plant since May, 1958, and from the operation data the following items were inferred : - 1) Although in lime sinter the mean grain size was getting smaller, the amount of the fine fraction (minus five millimeter fraction) became rather decreased than in normal sinter, from which it was inferred that lime sinter was more improved in point of grain distribution. 2) Lime sinter had almost the same degree of strength as normal sinter. 3) By adding 5&acd;10% of lime stone, the output of sinter was increased by 4&acd;6.5%. When calculated in terms of iron, the output, however, was almost constant. 4) In case of using the burden of 100% lime sinter, operation was carried out with special attention paid to the control of basicity, and for that purpose such measures as the use of foreign fine ores divided into the three classes according to SiO_2 content, etc. were enforced, and, as the result, the sinter that could almost satisfy the requirements of blast furnaces was able to be produced. 5) Cost of sinter production was decreased by 2% and 5.5% by the addition of 5% and 10% of lime stone, respectively, but the cost in terms of iron was almost unchanged. For these reasons it was concluded that lime sinter was superior to normal sinter.

著者

堀切 政康

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.16, no.9, pp.935-960, 1930-09-25

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The present author investigated the improvements of physical and mechanical properties of cast iron from a practical foundry work and attained to the next conclusions : -The properties of cast iron vary with the cupola melting conditions remarkably, consequently, if we want to produce a high quality cast iron, it is necessary to get a suitable melting condition, say, high and slow melting for the first time. And also if we want to get a high quality cast iron, it is necessary to lowering the total carbon content of cast iron, according to the rate of cooling for the purpose of producing a cast iron with a uniform and an excellent mechanical property. But the lowering of carbon content necessitates an addition of a resultant amount of Silicon, if we want to produce a sound casting with uniform structures. Thus it is presumed that there is a relation between the total C%+Si%, and the size of casting on the condition of a reasonable melting. By these conclusions, the present author produced high grade cast irons (T.C 2.5%&acd;2.8%, Si 3.0%&acd;2.0%, Mn 1.0%&acd;2.0%, P, S trace) for the large and complex cast iron by the cupola direct melting Semi-Steels. But in the cupola melting, if we want to produce a low carbon Semi-Steels it is necessary to determine the cupola conditions for the restriction of carbon absorption and high temperature melting. For these Purposes, the present author already investigated the whole conditions for a cupola melting by the aid of small cupola. Its contents are as follows : - 1 tuyere problems 2 blast volume problems 3 on the effects of carboneous matter 4 on the condition of cupola melting zone 5 on the depth of cupola hearth. 6 on the relations between the combustion gas (CO_2 CO O_2) and the change of cupola operation, etc. After that the present author continued the same investigations on a large cupola and attained to the same conclusions, so that in this paper, he wants to make public these results, that is, the whole conditions for the mode of production of low carbon Semi-Steels by a large cupola melting.

著者

高谷 幸司

出版者

社団法人日本鉄鋼協会

雑誌

鐵と鋼 : 日本鐡鋼協會々誌 (ISSN:00211575)

巻号頁・発行日

vol.90, no.10, pp.751-757, 2004-10-01

参考文献数

41

被引用文献数

8

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電磁撹〓と電磁ブレーキは,その基本的な動作として,電磁撹〓は能動的で流動促進作用,電磁ブレーキは受動的で流動抑制作用を特徴とするが,両者ともに近年の連続鋳造設備の多くに設置され,高生産性かつ高品質の鋳片製造に効果を発揮している。その選択は状況次第であるが,その動作特性から考えて,薄スラブマシンに代表されるより高速な連続鋳造の実現には電磁ブレーキ,表面品質が問題となる比較的低速なマシンにはメニスカス電磁撹〓の採用が適切な選択と考えられる。また,浸漬ノズルの形状についても,今なお多くの改善が継続されており,ノズル閉塞防止技術と併せて今後の進展が期待される。さらに,今後の技術として軟接触鋳造の商用化に期待がかかるものの解決すべき課題は多い。<BR>適切な流動制御を行うには,磁場の効果を含めて,鋳型内の流動・伝熱現象と鋳片に発生する種々の欠陥との定量的関係のさらなる解明が必要である。複雑な現象の解明と新たなアイデアで,更なる高生産性かつ高品質な鋳片製造技術が確立されることを願ってやまない。