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

JP2000144244A PRODUCTION OF STEEL HAVING SUPERFINE STRUCTURE 失效
公开(公告)号：JP2000144244A
公开(公告)日：2000-05-26
申请号：JP31911098
申请日：1998-11-10
申请人： NIPPON KOKAN KK , NIPPON STEEL CORP , SUMITOMO METAL IND , KOBE STEEL LTD
发明人： YOKOTA TOMOYUKI , SHIRAGAMI TETSUO , NIIKURA MASAKAZU , FUJIOKA MASAAKI , ADACHI YOSHITAKA , MATSUKURA NARIKAZU
IPC分类号： C21D8/00 , C22C38/00 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a means for producing steel with a superfine structure excellent in strength and toughness by an industrially easy method. SOLUTION: As for steel contg., by weight, 0.01 to 0.8% C, 0.01 to 3.0% Si, 0.1 to 3.0% Mn, 0.005 to 0.3% Al and 0.001 to 0.05% N, in the stage of temp. rising or cooling, working is executed at a temp. lower than the Ac1 point in the respective stages and also at the temp. and working ratio bringing dynamic inverse transformation simultaneously with the working, and immediately after that, cooling is executed.

2. 发明专利

JP2977650B2 失效
公开(公告)号：JP2977650B2
公开(公告)日：1999-11-15
申请号：JP22692291
申请日：1991-09-06
申请人： NIPPON KOKAN KK , MITSUBISHI ARUMINIUMU KK , TOYOTA JIDOSHA KK
发明人： YOMURA YOSHINORI , KOIKE TETSUHIRO , IDA IWAO , KIMA KYOSHI , NIIKURA MASAKAZU
IPC分类号： C23C28/00 , C25D3/20 , C25D3/22 , C25D3/56 , C25D5/10 , C25D5/30

3. 发明专利

JPH0860300A ULTRALOW CARBON STEEL HAVING FINE HOT ROLLED STRUCTURE AND ITS PRODUCTION 失效
公开(公告)号：JPH0860300A
公开(公告)日：1996-03-05
申请号：JP19648094
申请日：1994-08-22
申请人： NIPPON KOKAN KK
发明人： YAMADA KATSUMI , NIIKURA MASAKAZU
IPC分类号： C21D9/48 , C22C38/00 , C22C38/54
摘要： PURPOSE: To refine a hot rolled structure and to produce an ultralow carbon steel excellent in high-degree formability. CONSTITUTION: The ultralow carbon steel, having a composition consisting of, by weight,

4. 发明专利

JPH0693400A PRODUCTION OF ELECTRODEPOSITION DRUM MADE OF TITANIUM 失效
公开(公告)号：JPH0693400A
公开(公告)日：1994-04-05
申请号：JP24668692
申请日：1992-09-16
申请人： NIPPON KOKAN KK
发明人： FUKAI HIDEAKI , NIIKURA MASAKAZU , OUCHI CHIAKI
IPC分类号： B21H1/06 , C22F1/00 , C22F1/18 , C25D1/04
摘要： PURPOSE:To efficiently produce an electrodeposition drum made of titanium having fine structure by applying hot ring rolling to a titanium stock, applying cold rolling reduction again, and then performing annealing. CONSTITUTION:Hot ring rolling is applied at about 800-880 deg.C to a titanium stock, by which an annular intermediate product made of titanium is easily formed. Cold rolling reduction is applied again to the intermediate product at 20-70% draft, by which the structure of the intermediate product formed by hot ring rolling is destroyed and prescribed strain energy is provided. Subsequently, this intermediate product is annealed and formed into a fine recrystallized structure. It is preferable that temp. T deg.C and time (t)min at this annealing satisfy the relations in 570

5. 发明专利

JPH05112840A BAKING HARDENABILITY AL-MG-SI ALLOY SHEET EXCELLENT IN PRESS FORMABILITY AND ITS MANUFACTURE 失效
公开(公告)号：JPH05112840A
公开(公告)日：1993-05-07
申请号：JP27141391
申请日：1991-10-18
申请人： NIPPON KOKAN KK
发明人： FUJITA TAKESHI , MITAO SHINJI , NIIKURA MASAKAZU
IPC分类号： C22C21/06 , C22F1/00 , C22F1/04 , C22F1/05
摘要： PURPOSE:To provide an Al-Mg-Si alloy sheet free from the generation of strains and stretcher strain marks, excellent in press formability and hardenability by low temp. baking and suitable for an automobile body sheet, and its manufacturing method. CONSTITUTION:This cover is a baking hardenability Al-Mg-Si allay sheet contg., by weight, 0.4 to 1.5% Mg, 0.24 to 1.5% Si, 0.12 to 1.5% Cu, 0.1 to 1.0% Zn, 0.005 to 0.15% Ti and =two kinds among 0.08 to 0.30% Mn, 0.05 to 0.20% Cr, 0.05 to 0.20% Zr, 0.04 to 0.10% V and 0.0002 to 0.05% B and the balance Al with inevitable impurities and excellent in press formability.

6. 发明专利

JPH0559509A METHOD FOR HEAT-TREATING (ALPHA+BETA) TYPE TITANIUM ALLOY 失效
公开(公告)号：JPH0559509A
公开(公告)日：1993-03-09
申请号：JP21955791
申请日：1991-08-30
申请人： NIPPON KOKAN KK
发明人： KUBOYAMA OSAMU , NIIKURA MASAKAZU , OUCHI CHIAKI
IPC分类号： C22C14/00 , C22F1/00 , C22F1/18
摘要： PURPOSE:To provide an (alpha+beta) type titanium alloy excellent in strength, tough ness and ductility by executing a heat treatment in specified conditions. CONSTITUTION:When the (alpha+beta) type titanium alloy having a compsn. satisfying the conditions of following inequalities (1) to (6) and the balance Ti with inevitable impurities is applied to a solution annealing aging treatment, it is heated to a soln. annealing aging treatment temp. of >= the beta transformation point (Tbeta) and to less than the beta transformation point (Tbeta)+100 deg.C at >=2 deg.C/s heating rate, is held for =2 deg.C/s cooling rate; where it contains 3.0

7. 发明专利

JPH0379429B2 失效
公开(公告)号：JPH0379429B2
公开(公告)日：1991-12-18
申请号：JP4731786
申请日：1986-03-06
申请人： NIPPON KOKAN KK
发明人： OOCHI CHIAKI , NIIKURA MASAKAZU , TAKAHASHI KAZUHIDE
IPC分类号： C22F1/04 , C22C21/00

8. 发明专利

JPH0238041B2 失效
公开(公告)号：JPH0238041B2
公开(公告)日：1990-08-28
申请号：JP14217485
申请日：1985-06-28
申请人： NIPPON KOKAN KK
发明人： OOCHI CHIAKI , NIIKURA MASAKAZU , TAKAHASHI KAZUHIKO
IPC分类号： B21C26/00 , B21C29/00

9. 发明专利

JPS6289588A MANUFACTURE OF CLAD STEEL 失效
公开(公告)号：JPS6289588A
公开(公告)日：1987-04-24
申请号：JP22891085
申请日：1985-10-16
申请人： NIPPON KOKAN KK
发明人： NAKADA KIYOKAZU , KOSUGE SHIGECHIKA , WATANABE ITARU , NIIKURA MASAKAZU , SUENAGA HIROYOSHI
IPC分类号： B23K20/00
摘要： PURPOSE:To improve the quality of a junction part by inserting an insert material between a base material having a specified carbon content and a coupling material, also forming a gap between the former and the coupling material, and subsequently rolling after applying seal-welding to the gap, and exhausting. CONSTITUTION:Between a base material 20 whose carbon content is >=0.06% and a titanium plate 10 being a coupling material, an insert material 30 of carbon steel, etc. is inserted, and between the former and the coupling material 10, a gap in a range of 0.1-8.0mm is formed. Also, a spacer material 40 and a sacrifice material 50 are placed on the base material 20 and the coupling material 10, respectively. In such a case, a release material Al2O3 is applied to the whole joint surface of the sacrifice material 50 and the coupling material 10. Subsequently, by an electron beam welding, the spacer material 40, the base material 20, and the sacrifice material 50 are brought to seal-welding, respectively, and exhausted from inside of the gap Next, this laminated material is heated, and rolled under a prescribed condition. Since the insert material 30 is inserted by providing the gap, the quality of a junction part is improved.

10. 发明专利

JPS61108483A Manufacture of titanium clad steel by hot rolling 失效
标题翻译：钛合金热轧制造
公开(公告)号：JPS61108483A
公开(公告)日：1986-05-27
申请号：JP22688584
申请日：1984-10-30
申请人： Nippon Kokan Kk
发明人： OUCHI CHIAKI , NIIKURA MASAKAZU , SUENAGA HIROYOSHI
IPC分类号： B23K20/00 , B23K9/028 , B23K20/04 , B23K20/14
CPC分类号： B23K20/04 , B23K20/14
摘要： PURPOSE: To manufacture at a low cost a titanium clad steel whose joining force is excellent by forming an assembly slab by applying an oxide of Mo or V of a specified quantity to a joint surface of a ferrous base material and a titanium clad material, heating it to a correct temperature, and thereafter, rolling it.
CONSTITUTION: A joint surface of a steel material of a carbon steel, etc. and a titanium clad material of a pure titanium, etc. is cleaned by removing an oxide layer by grinding, etc., and thereafter, an oxide of an Mo compound or a V compound of MoO
3 , V
2 O
5 , etc. is applied by 20W300g/m
2 to at least one surface. Subsequently,, when forming an assembly slab by superposing these base materials and bringing four peripheries to sealing welding, its inside is evacuated to ≤10
-1 torr. The assembly slab obtained in this way is heated to above a temperature which is higher by 50°C than a melting point of said oxide and ≤1,050°C, and thereafter, rolled. In this way, said oxide is reduced by Ti and a metal Mo or V is generated, the base material and the clad material are joined firmly and a titanium clad steel is obtained.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：以低成本制造钛合金钢，其通过将特定量的Mo或V的氧化物施加到铁基材料和钛包覆材料的接合表面上而形成组装板而具有优异的接合力，加热它到正确的温度，然后滚动它。构成：通过研磨等除去氧化物层，然后将Mo化合物的氧化物除去碳钢等的钢材的接合面和纯钛等的钛包覆材料或MoO 3，V 2 O 5等的V化合物以20-300g / m 2施加至至少一个表面。随后，当通过叠加这些基底材料并使四个周边进行密封焊接形成组装板时，将其内部抽空至<= 10 -1托。以这种方式获得的组装板被加热到高于所述氧化物的熔点和<= 1050℃的温度高于50℃的温度，然后进行轧制。以这种方式，通过Ti还原所述氧化物，并且产生金属Mo或V，基材和包层材料牢固地接合并获得钛包覆钢。

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