Nkk Corporation

Other

Sony Corporation

Jfe Steel Corporation

Meiwa Sangyo Co., Ltd.

Yasuyuki Takada

Hideki Matsuoka

Tatsuhiko Hiratani

Kunikazu Tomita

Kenji Tahara

Ichiro Saito

Takeshi Fujita

Yoshihiko Oda

Yasushi Tanaka

Nobuyuki Nakamura

Reiko Sugihara

Satoshi Kodama

Nobuo Yamagami

Katsutoshi Ito

Ken-ichi Mitsuzuka

Yasunobu Nagataki

Tomoyoshi Okita

Yoshihiro Hosoya

Hiroaki Kato

Teruo Takeuchi

Tomio Aoki

Seishi Tsuyama

Shiro Kenmotsu

Katsumi Nakajima

Chohachi Sato

Syotaro Nagamori

Shuzi Kanetoh

To provide a high carbon steel sheet having excellent hardenability and toughness, and low planar anisotropy of tensile properties affecting workability, and a method of producing the same. A high car steel sheet having chemical composition specified by JIS G 4051 (Carbon steels for machine structural use), JIS G 4401 (Carbon tool steels) or JIS G 4802 (Cold-rolled steel strips for springs), wherein more than 50 carbides having a diameter of 1.5 &#x3bc;m or larger exist in 2500 &#x3bc;m, the ratio of number of carbides having a diameter of 0.6 &#x3bc;m or less with respect to all the carbides is 80% or more, and the &#x394;r is more than &#x2212;0.15 to less than 0.15, herein &#x394;r=(r0+r90&#x2212;2&#xd7;r45)/4, and r0, r45, and r90 shows a r-value of the directions of 0&#xb0; (L), 45&#xb0; (S) and 90&#xb0; (C) with respect to the rolling direction respectively.

High carbon steel and production method thereof

A steel sheet for a magnetic shield comprising less than 0.005% by weight of C and 0.0003 to 0.01% by weight of B, and having a thickness of 0.05 to 0.5 mm and an anhysteresis magnetic permeability of 7500 or more.

Steel sheet for magnetic shields and manufacturing method thereof

The present invention relates to a high carbon steel sheet having chemical composition specified by JIS G 4051 (Carbon steels for machine structural use), JIS G 4401 (Carbon tool steels) or JIS G 4802 (Cold-rolled steel strips for springs), wherein the ratio of number of carbides having a diameter of 0.6 &mgr;m or less with respect to all the carbides is 80% or more, more than 50 carbides having a diameter of 1.5 &mgr;m or larger exist in 2500 &mgr;m of observation field area of electron microscope, and the &Dgr;r is more than &minus;0.15 to less than 0.15. The high carbon steel sheet of the invention is excellent in hardenability and toughness, and formable with a high dimensional precision.

High carbon steel sheet

A steel sheet for magnetic shields is provided containing 0.15% by weight or less of C and having a thickness of 0.05-0.5 mm and an anhysteretic magnetic permeability of 7500 or higher.

Magnetic shielding steel sheet and method for producing the same

A steel sheet for preparing a heat shrink band effective for preventing the color drift is provided by a steel sheet having 24 kg/mm or higher of yield stress and 400 or higher of the product between the permeability &mgr; under a magnetic field of 0.3 Oe and the sheet thickness.

Steel sheet for heat shrink band effective for preventing color drift

A heat shrink band steel sheet of the present invention comprises on the basis of percent in weight C: 0.1% or less, Si: 0.1% or less, Mn: 0.1 to 2%, P: 0.15% or less, S: 0.02% or less, sol Al: 0.08% or less, and N: 0.005% or less, or C: 0.005% or less, Si: 0.1% or less, Mn: 0.1 to 2%, P: 0.15% or less, S: 0.02% or less, sol Al: 0.08% or less, N: 0.005% or less, Ti: 0.02 to 0.06%, and B: 0.0003 to 0.005%, wherein the product of a magnetic permeability at the magnetic field of 0.3 Oe after heat shrinking treatment and a thickness (mm) is at least 350. A color CRT having a sufficient magnetic shielding characteristic and a less amount of color deviation can be realized by the steel sheet.

Heat shrink band steel sheet and manufacturing method thereof

A steel sheet for a heat-shrink band, which is to be thermally expanded and fitted over the outer periphery of the panel portion of a cathode ray tube, which has at least a 20% elongation at an ambient temperature and at least a 40 kg/mm.sup.2 stress of yielding point after the heating and cooling, in particular one comprised by a dual phase cold rolled steel sheet comprising a ferrite phase and a martensite phase or a cold rolled steel sheet containing a retained austenite.

Steel sheet for heat-shrink band

Method for manufacturing an ultra-high strength cold-rolled steel sheet

A gastric resident object having elastic stimulus members, which is admitted into the rumen, functions as a substitute for roughage and stimulates the mucous membrane and the wall of the rumen, so that the rumen can be maintained healthily and appropriately. Thus, it is possible to the use of roughage in quantity and decrease excretion, to thereby curtail the costs for dealing with the excretion and feeding for the ruminants.

Method and apparatus for raising ruminants

Growing community of inventors

Fukuyama, Japan

Yasuyuki Takada