专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH11106860A FERRITIC HEAT RESISTANT STEEL EXCELLENT IN CREEP CHARACTERISTIC IN HEAT-AFFECTED ZONE 失效
公开(公告)号：JPH11106860A
公开(公告)日：1999-04-20
申请号：JP26683597
申请日：1997-09-30
申请人： KOBE STEEL LTD
发明人： FUJITSUNA NORIYUKI , SAKAI TADAMICHI , UCHIDA HIROYUKI , OKUDA TAKANARI
IPC分类号： C22C38/00 , C22C38/32 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To prevent the segregation of Nb and W in a steel by allowing it to have a compsn. composed of specified amounts of C, N, Mn, Ni, Cr, Mo, W, V and Nb, in which the amounts of Mo and W are also regulated to specified ratios, and the balance Fe with inevitable impurities. SOLUTION: A ferritic heat resistant steel having a compsn. contg., by mass, 0.05 to 0.15% C, =3.5, and the balance Fe with inevitable impurity elements is prepd. Furthermore, >=0.01% B and 0.1% Si may be added thereto according to necessary. In this way, the ferritic heat resistant steel having proof stress, tensile strength and absorbed energy at a room temp. and at about 550 deg.C can be obtd.

2. 发明专利

JPH09202941A HIGH WEAR RESISTANT HIGH MANGANESE CAST STEEL AND ITS PRODUCTION 失效
公开(公告)号：JPH09202941A
公开(公告)日：1997-08-05
申请号：JP2989296
申请日：1996-01-23
申请人： KOBE STEEL LTD , YONAGO SEIKO KK
发明人： MURAKAMI SHOGO , UCHIDA HIROYUKI , MINAGAWA KOJI , MASUMOTO TAKESHI , NAKAI HISANAO
IPC分类号： C22C38/00 , C22C38/38
摘要： PROBLEM TO BE SOLVED: To produce a high wear resistant high Mn cast steel for a wear resistant member having wear resistance more improved than that of the conventional one and having a long service life and to provide a method for producing the above steel. SOLUTION: This high wear resistant high Mn cast steel is the one contg., by weight, 1.1 to 1.6% C, 0.3 to 1.0% Si, 15.0 to 35.0% Mn,

3. 发明专利

JPH05339679A 失效
公开(公告)号：JPH05339679A
公开(公告)日：1993-12-21
申请号：JP40992690
申请日：1990-12-11
申请人： KOBE STEEL LTD
发明人： UCHIDA HIROYUKI , FUJIWARA MASAYUKI
IPC分类号： C01G49/00 , C22C38/00 , C22C38/50 , H01M8/02 , H01M8/06
摘要： PURPOSE:To obtain a modifier material excellent in creep rupture strength, furthermore excellent in oxidation resistance, capable of withstanding use for a long term and free from or extremely small in the formation of a harmful sigmaphase. CONSTITUTION:The objective modifier material for a fuel cell contains, by weight,

4. 发明专利

JPH04141540A ALLOY FOR CONDUCTING ROLL 失效
公开(公告)号：JPH04141540A
公开(公告)日：1992-05-15
申请号：JP26117290
申请日：1990-09-28
申请人： KOBE STEEL LTD
发明人： IJIMA KIYOYUKI , TSUTSUMI MASAYUKI , TOMARI HARUO , UCHIDA HIROYUKI
IPC分类号： C22C19/05
摘要： PURPOSE:To improve the corrosion resistance and wear resistance of an alloy by specifying the content of C, Si, Mn, Cr, Mo, Fe, Al and Nb in an Ni base allay. CONSTITUTION:The compsn. of an alloy for a conducting roll is constituted of, by weight,

5. 发明专利

JPS649379B2 失效
公开(公告)号：JPS649379B2
公开(公告)日：1989-02-17
申请号：JP14080982
申请日：1982-08-12
申请人： KOBE STEEL LTD
发明人： OOTA SADAO , FUJIWARA MASAYUKI , UCHIDA HIROYUKI , NAGAI NOBUYUKI , TANAKA YOSHIRO
IPC分类号： C22C38/00 , C21D6/00 , C22C38/54 , G21C3/07

6. 发明专利

JPS62180039A FERRITIC HEAT-RESISTANT STEEL WITH VERY LOW CARBON CONTENT FOR STRUCTURAL MATERIAL FOR HIGH TEMPERATURE SERVICE 失效
公开(公告)号：JPS62180039A
公开(公告)日：1987-08-07
申请号：JP2152586
申请日：1986-02-03
申请人： KOBE STEEL LTD
发明人： UCHIDA HIROYUKI , FUJIWARA MASAYUKI , KASHIMA TAKAHIRO
IPC分类号： C22C38/00 , C22C38/48
摘要： PURPOSE:To improve weldability and workability as well as strength at high temp. by specifying the amounts of C, Mn, Cr, Mo, N, Ni, V, and Nb. CONSTITUTION:This ferritic heat-resistant steel with very low carbon content has a composition consisting of, by weight,

7. 发明专利

JPS6283450A HIGH-CR FERRITIC STEEL FOR MATERIAL FOR CORE OF FAST BREEDER 失效
公开(公告)号：JPS6283450A
公开(公告)日：1987-04-16
申请号：JP22532585
申请日：1985-10-09
申请人： KOBE STEEL LTD
发明人： UCHIDA HIROYUKI , FUJIWARA MASAYUKI
IPC分类号： G21C13/08 , C22C38/00 , C22C38/48
摘要： PURPOSE:To obtain a high-Cr ferritic steel for a material for the core of a fast breeder having superior strength at high temp. by reducing the amount of C in a steel, increasing the amount of Mo, regulating the amount of N and the total amount of C+ and adding Ni in combination with Mn, Cr, V and Nb. CONSTITUTION:The composition of this high-Cr ferritic steel for a material for the core of a fast breeder is composed of, by weight, 0.04-0.1% C,

8. 发明专利

JPS6244559A STAINLESS STEEL FOR USE IN CORE MATERIAL FOR FAST BREEDER REACTOR AND ITS PRODUCTION 失效
公开(公告)号：JPS6244559A
公开(公告)日：1987-02-26
申请号：JP18354185
申请日：1985-08-20
申请人： KOBE STEEL LTD
发明人： OOTA SADAO , FUJIWARA MASAYUKI , UCHIDA HIROYUKI
IPC分类号： C21D6/00 , C22C38/00 , C22C38/54
摘要： PURPOSE:To obtain the titled steel showing excellent swelling resistance even if subjected to neutron irradiation for a long period, having superior strength at high temp. and free of fine cracks by increasing the amount of Ni and optimizing the additive quantities of C, Ti and Nb in a Cr-Ni-Mo-Ti-Nb steel having a specific composition. CONSTITUTION:The steel consists of, by weight, 0.05-0.07% C, =1110 deg.C and then to cold working at 10-30% draft. In the above steel, swelling resistance is greatly improved and creep rupture strength is also improved and further the rate of tine cracking is reduced, so that service life as a core material for a breeder reactor can be prolonged to a great extent by the use of this steel.

9. 发明专利

JPS60187421A MANUFACTURE OF SEAMLESS STAINLESS STEEL PIPE 失效
公开(公告)号：JPS60187421A
公开(公告)日：1985-09-24
申请号：JP4438884
申请日：1984-03-07
申请人： KOBE STEEL LTD
发明人： NOZAKI TERUHIKO , YAO YASUTAKE , KOORI MITSURU , UCHIDA HIROYUKI
IPC分类号： B21C1/00 , B21C23/00 , B21C23/08 , C21D8/10
摘要： PURPOSE:To simplify manufacturing process omitting blooming process by manufacturing round ingots of stainless steel by a continuous casting machine, and after cutting the surface of one side by specified amount, making hot extrusion, and further cold drawing at specified reduction rate of area. CONSTITUTION:In manufacturing of a seamless stainless steel pipe, round ingots of stainless steel are made by a horizontal continuous casting machine, and after cutting the surface of one side 1-2mm., hot extruded, and further cold drawing is made at reduction rate of area of above 40%. When soaking is necessary, round ingots having diameter larger than 150mm. and smaller than 300mm. are manufactured by a horizontal continuous casting machine before above-mentioned hot extrusion, and soaking process is made at soaking temperature of above 1,200 deg.C and for a soaking time that satisfies d/50+2>=H>=d/50 (dmm. is diameter of round ingot, H is time of soaking).

10. 发明专利

JPH09157808A METHOD FOR PREDICTING HIGH-TEMPERATURE STRENGTH OF ALUMINUM ALLOY MATERIAL AND APPARATUS THEREFOR 失效
公开(公告)号：JPH09157808A
公开(公告)日：1997-06-17
申请号：JP31837195
申请日：1995-12-06
申请人： KOBE STEEL LTD
发明人： NAGAO MAMORU , UCHIDA HIROYUKI
IPC分类号： C22F1/04 , C22F1/00
摘要： PROBLEM TO BE SOLVED: To provide a method for predicting the high-temp. strength of a precipitation reinforcing type aluminum alloy capable of predicting the change in the strength of this aluminum alloy under a high-temp. environment of fluctuating temps. and an apparatus therefor. SOLUTION: This apparatus predicts the high-temp. strength of the precipitation reinforcing type aluminum alloy used under the high-temp. environment of the continuously changing temps. The apparatus has a first memory section 5a which stores the function of the strength and temp. with respect to the base phase of the aluminum alloy material, a second memory section 5 which stores the calculation equation for the change rate of the strength based on the growth of the precipitation phase in the aluminum alloy material, an accumulation section 4a which successively accumulates the time elapsed from the start of use of the aluminum alloy material to be predicted and the member temp. at the point of this time and a strength prediction section 5e which predicts the future temp. in accordance with the time elapsed and member temp. accumulated in this accumulation section 4a and determines the high-temp. strength of the aluminum alloy material at the predicted temp. by the sum of the strength of the base phase and the strength change rate of the precipitation phase.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式