公开(公告)号：US5136819A

公开(公告)日：1992-08-11

申请号：US649076

申请日：1991-02-01

申请人： Masakuni Takagi ,  Hiroyoshi Takeuchi ,  Hideaki Fukai ,  Toshio Sakiyama ,  Hiroyoshi Suenaga ,  Kuninori Minakawa

发明人： Masakuni Takagi ,  Hiroyoshi Takeuchi ,  Hideaki Fukai ,  Toshio Sakiyama ,  Hiroyoshi Suenaga ,  Kuninori Minakawa

IPC分类号： B24B29/00 ,  B24B13/00 ,  G11B5/84

CPC分类号： B24B13/00 ,  B24B37/042

摘要： According to a mirror surface polishing process of the present invention, it is possible to produce Ti-made magnetic disc substrate which have the excellent flatness degree and surface roughness in that the average roughness is not more than 0.05 .mu.m and the flatness degree of the outer periphery is not more than 0.15 .mu.m.

摘要翻译： 根据本发明的镜面抛光工艺，可以生产具有优异的平坦度和表面粗糙度的Ti制磁盘基片，其平均粗糙度不大于0.05μm，平均度为 外围不超过0.15亩。

公开(公告)号：US5360677A

公开(公告)日：1994-11-01

申请号：US4190

申请日：1993-01-13

申请人： Hideaki Fukai ,  Hiroyoshi Suenaga ,  Kuninori Minakawa ,  Shinichiro Otaka ,  Masahiko Naoe

发明人： Hideaki Fukai ,  Hiroyoshi Suenaga ,  Kuninori Minakawa ,  Shinichiro Otaka ,  Masahiko Naoe

IPC分类号： G11B5/82 ,  C22C14/00 ,  G11B5/73 ,  G11B5/66

CPC分类号： G11B5/7315 ,  G11B5/73 ,  Y10S428/90

摘要： A magnetic disk substrate having a composition wherein (V/13)+(Fe/20)+(Cr/17)+(Ni/31)+(Co/23) are no greater than 0.010%, Rem+Si+B+W are no greater than 0.015% (where Rem denotes rare earth metals), 0+2N+0.75C are no less than 0.03% and no greater than 0.5%, and the remainder consists substantially of Ti, all % being weight %.

摘要翻译： 具有（V / 13）+（Fe / 20）+（Cr / 17）+（Ni / 31）+（Co / 23）为0.010％以下的组成的磁盘基板，Rem + Si + B + W不大于0.015％（其中Rem表示稀土金属），0 + 2N + 0.75C不小于0.03％且不大于0.5％，余量基本上由Ti组成，全部为重量％。

公开(公告)号：US4799975A

公开(公告)日：1989-01-24

申请号：US99537

申请日：1987-09-22

申请人： Chiaki Ouchi ,  Yohji Kohsaka ,  Hiroyoshi Suenaga ,  Hideo Sakuyama ,  Hideo Takatori

发明人： Chiaki Ouchi ,  Yohji Kohsaka ,  Hiroyoshi Suenaga ,  Hideo Sakuyama ,  Hideo Takatori

IPC分类号： C22F1/18 ,  C22C14/00

CPC分类号： C22F1/183

摘要： A .beta. type titanium alloy material is passed through processes and heating treatments of cold working--intermediate solution treatment--final cold working--final solution treatment--aging. In this process, a structure, which has been provided with strains by the cold working performed prior to the final cold working, will be changed into a recrystallized structure by carrying out the intermediate solution treatment, where uniform and fine micro substructure of dislocations, remain with grains. If such an intermediate solution-treated material is processed with a slight cold working by the final cold working and further with the solution treatment, only a recovery phenomenon progresses, and it is possible to provide such a micro substructure containing more uniform and finer dislocation network not only in grains but also in grain boundaries. Therefore, in the aging, expedition of precipitation and uniform distribution of .alpha. crystals will be realized in the grains and grain boundary regions, and intergranular cracking is difficult to take place, and alloy materials having high strength and high ductility may be produced.

公开(公告)号：US5159787A

公开(公告)日：1992-11-03

申请号：US769326

申请日：1991-09-30

申请人： Hiroyoshi Suenaga ,  Takeshi Ito ,  Masakuni Takagi ,  Hiroyoshi Takeuchi ,  Hideaki Fukai ,  Kuninori Minakawa

发明人： Hiroyoshi Suenaga ,  Takeshi Ito ,  Masakuni Takagi ,  Hiroyoshi Takeuchi ,  Hideaki Fukai ,  Kuninori Minakawa

IPC分类号： B24B37/27 ,  B24B37/28

CPC分类号： B24B37/28

摘要： A method for lapping two surfaces of a titanium disk comprises inserting loosely a titanium disk to be lapped into an opening in a disk-type carrier, the carrier rotating and revolving between an upper surface plate and a lower surface plate which are held in parallel with each other and which applies lapping pressure to the titanium disk, feeding abrasives between the surface plates and the titanium disk and satisfying the following relationship between thickness t (mm) of the titanium disk and thickness T (mm) of the carrier:0.025 exp (t+1.5).ltoreq.T.ltoreq.0.9 t

摘要翻译： 用于研磨钛盘的两个表面的方法包括将待研磨的钛盘松散地插入盘形载体的开口中，所述载体在上表面板和下表面板之间旋转并旋转，所述载体与 彼此并且对钛盘施加研磨压力，在表面板和钛盘之间输送磨料，并且满足钛盘的厚度t（mm）和载体的厚度T（mm）之间的以下关系：0.025exp（ t + 1.5）

公开(公告)号：US4990362A

公开(公告)日：1991-02-05

申请号：US482026

申请日：1990-02-16

申请人： Hiroshi Kibe ,  Hideaki Fukai ,  Hiroyoshi Suenaga

发明人： Hiroshi Kibe ,  Hideaki Fukai ,  Hiroyoshi Suenaga

IPC分类号： C23C14/16 ,  C23C14/02 ,  C23C14/14 ,  C23C16/02 ,  C23C16/06 ,  G11B5/73 ,  G11B5/738 ,  G11B5/82 ,  G11B5/84

CPC分类号： G11B5/8404 ,  G11B5/7315

摘要： Titanium magnetic disk substrates are manufactured by preparing a base by stripping not less than 5 .mu.m from the surface layer of a titanium cold-rolled plate, and then forming a film of not less than 5 .mu.m consisting of 1 or more non-magnetic transition metal elements belonging to Groups IVA, VA, VIA, VIIA and VIIIA of the Periodic Table, on the surface of this base.

公开(公告)号：US5221459A

公开(公告)日：1993-06-22

申请号：US874049

申请日：1992-04-24

申请人： Yoko Okano ,  Hiroyoshi Suenaga ,  Toshio Sakiyama ,  Kenji Morita ,  Masanori Ohmura ,  Iwao Ida ,  Hitoshi Nagashima

发明人： Yoko Okano ,  Hiroyoshi Suenaga ,  Toshio Sakiyama ,  Kenji Morita ,  Masanori Ohmura ,  Iwao Ida ,  Hitoshi Nagashima

IPC分类号： C25D11/26 ,  G11B5/84

CPC分类号： G11B5/8404 ,  C25D11/26

摘要： A method of manufacturing a magnetic disk substrate made of titanium, in which chemical etching is performed on a titanium disk for magnetic disk substrate, thereby removing a surface portion thereof having a thickness of at least 2 nm, and the new surface of the titanium disk, formed by the chemical etching, is anodized, thereby forming anodized film on the titanium disk.

公开(公告)号：US5120615A

公开(公告)日：1992-06-09

申请号：US536701

申请日：1990-06-12

申请人： Hideaki Fukai ,  Hiroyoshi Suenaga ,  Kuninori Minakawa

发明人： Hideaki Fukai ,  Hiroyoshi Suenaga ,  Kuninori Minakawa

IPC分类号： G11B5/73 ,  G11B5/84

CPC分类号： G11B5/8404 ,  G11B5/7315

摘要： A magnetic disk substrate composition 0.5 wt % to 1.0 wt % of Mo, 0.03 wt % to 0.5 wt % of O+2N+0.75C, and a balance of Ti. The alloy sheet having a composition of above range is cold-rolled at a rolling ratio of 30% or more to form a magnetic disk substrate material, and the material is thermal-flattened under the following condition:500.ltoreq.T.ltoreq.-(150/11).multidot.t+7850/111.ltoreq.twhere T represents a thermal-flattening temperature (.degree.C.), and t represents a thermal-flattening time (houre), thereby obtaining a magnetic disk substrate having the average grain size of 30 .mu.m or less.

公开(公告)号：US5060845A

公开(公告)日：1991-10-29

申请号：US532911

申请日：1990-06-04

申请人： Hiroyoshi Suenaga ,  Misao Ishikawa ,  Kuninori Minakawa

发明人： Hiroyoshi Suenaga ,  Misao Ishikawa ,  Kuninori Minakawa

IPC分类号： B23K20/04 ,  B32B15/01 ,  C22C19/05

CPC分类号： B32B15/01 ,  B23K20/04 ,  Y10T428/12806 ,  Y10T428/12937

摘要： A method for manufacturing titanium clad steel plate by forming a slab assembly having an alloy steel substrate, a titanium metal or alloy cladding on said substrate and a Ni-Cr alloy foil or film having opposed surfaces between said alloy steel and said cladding. The Ni-Cr alloy foil or film has one surface in surface contact with the cladding and the opposed surface in surface contact with the alloy steel substrate. The Ni-Cr alloy contains 32.5 to 40 wt. % Cr and 55 to 65 wt. % Ni. The slab assembly is heated at a temperature of 850.degree. to 1010.degree. C. The heated slab assembly is hot rolled with a reduction ratio of 30% or more to form the titanium clad steel plate.

公开(公告)号：US4944914A

公开(公告)日：1990-07-31

申请号：US443930

申请日：1989-11-30

申请人： Atsushi Ogawa ,  Hiroyoshi Suenaga ,  Kuninori Minakawa

发明人： Atsushi Ogawa ,  Hiroyoshi Suenaga ,  Kuninori Minakawa

IPC分类号： C22C14/00

CPC分类号： C22C14/00

摘要： The invention provides a titanium alloy having improved superplastic forming characteristics and mechanical characteristics. A titanium alloy having superplastic forming characteristics consisting essentially of about 5.5 to 6.75 wt. % Al, 3.5 to 4.5 wt. % V, 0.01 to 0.2 wt. % O, 0.85 to 3.15 wt. % Fe, 0.85 to 3.25 wt. % Mo, with 2.times.Fe wt. %+Mo wt. % being from 3 to 8, and balance titanium; said alloy containing .alpha.-crystals having a grain size below about 6 .mu.m in diameter. The Fe and Mo act as .beta.-stabilizing elements and contributing elements to lowering the beta transus and to the improvement of the superplastic characteristics.

公开(公告)号：US4694985A

公开(公告)日：1987-09-22

申请号：US892576

申请日：1986-08-01

申请人： Chiaki Ouchi ,  Masakazu Niikura ,  Hiroyoshi Suenaga

发明人： Chiaki Ouchi ,  Masakazu Niikura ,  Hiroyoshi Suenaga

IPC分类号： B23K20/00 ,  B23K9/028 ,  B23K20/04 ,  B23K20/14 ,  B23K31/02

CPC分类号： B23K20/04 ,  B23K20/14

摘要： For producing titanium clad steel plates by hot rolling, oxide of Mo or V is used as an intermediate material, and a slab assembly is formed with ferrous bases and titanium cladding materials. At least one side of cladding surfaces of the bases and the cladding materials is coated with an oxide of Mo or V of 20 to 300 g/m.sup.2, and an interior of the slab assembly is air-discharged less than 10.sup.-1 torr, and the slab assembly is heated at temperatures between a melting point of the employed oxide plus 50.degree. C. and 1050.degree. C. and undertaken with hot rolling.

摘要翻译： 为了通过热轧生产钛复合钢板，使用Mo或V的氧化物作为中间材料，并且用铁基和钛包覆材料形成板坯组件。 基体和包覆材料的包层表面的至少一侧涂覆有20〜300g / m 2的Mo或V的氧化物，并且板坯组件的内部空气排出小于10-1乇，以及 将板坯组件在所用氧化物的熔点加上50℃至1050℃之间的温度下加热，并进行热轧。