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1. 发明授权

US3974559A Continuous casting process 失效
标题翻译：连铸工艺
公开(公告)号：US3974559A
公开(公告)日：1976-08-17
申请号：US453276
申请日：1974-03-21
申请人： Takaho Kawawa , Tohru Arimura , Masaru Okado
发明人： Takaho Kawawa , Tohru Arimura , Masaru Okado
IPC分类号： B21B1/46 , B22D11/12 , B22D11/128 , B22D11/16
CPC分类号： B22D11/1206 , Y10T29/49991
摘要： In the withdrawing stage following the secondary cooling zone, each pair of rolls of a plurality of pairs of rolls reduces the cross section less than 1.5 percent at the portion between the liquidus line and solidus one in unsolidified phase, thereby to produce a sound cast piece without producing the known center segregation and the known center porosity.
摘要翻译：在二次冷却区之后的抽出阶段，多对辊的每对辊在非固化阶段使液面线和固相线之间的部分的横截面减小到1.5％以下，从而产生声铸件而不产生已知的中心偏析和已知的中心孔隙。

2. 发明授权

US4917872A Method for producing titanium fluoride 失效
标题翻译：氟化钛的制造方法
公开(公告)号：US4917872A
公开(公告)日：1990-04-17
申请号：US276311
申请日：1988-11-25
申请人： Keisuke Nakahara , Hideyuki Yoshikoshi , Toshio Hinami , Takaho Kawawa
发明人： Keisuke Nakahara , Hideyuki Yoshikoshi , Toshio Hinami , Takaho Kawawa
IPC分类号： C01G23/02 , C22B34/12
CPC分类号： C22B34/1222 , C01G23/028 , Y02P10/23
摘要： A method for producing titanium fluoride comprises: a dissolution process, wherein iron-containing titanium material is dissolved in solutions containing hydrofluoric acid, fluoride solutions being produced; a first crystallization and separation process, wherein ferric fluoride is crystallized and ferric fluoride crystals thus obtained are separated from the fluoride solutions by cooling the fluoride solutions, crude titanium fluoride solutions being produced; a second crystallization and separation process, wherein a mixed salt of (NH.sub.4).sub.2 TiF.sub.6 and (NH).sub.3 FeF.sub.6 is crystallized and separated by mixing ammonium fluoride solutions with the crude titanium fluoride solutions to obtain a mixture and concentrating the mixture; a first pyrolysis process, wherein the ammonium fluoride salt is pyrolyzed at a temperature of from 300.degree. to 800.degree. C. in a stream of dry gas after having dried the ammonium fluoride, solid ferric fluoride (FeF.sub.3) and gaseous TF.sub.4, HF and NH.sub.3 being produced; a condensation and separation process, wherein the gaseous TiF.sub.4, HF and NH.sub.3 are condensed at a temperature of from 20.degree. to 280.degree. C. and followed by the TiF.sub.4 separation of solid.

3. 发明授权

US4027844A Big-end-down ingot mold for casting metal 失效
标题翻译：用于铸造金属的大端铸锭模具
公开(公告)号：US4027844A
公开(公告)日：1977-06-07
申请号：US695458
申请日：1976-06-14
申请人： Takaho Kawawa , Masaharu Ito
发明人： Takaho Kawawa , Masaharu Ito
IPC分类号： B22D7/06 , B22D7/10 , B22D15/00
CPC分类号： B22D7/10
摘要： A big-end-down ingot mold has a heat insulating chamber which, when the ratio of the width of the wider walls to that of the narrower walls of the mold is less than 1.7:1, is formed in each of the four side walls and, when the ratio is 1.7:1 or more, is formed in each of the two opposed wider walls and whose horizontal sectional areas each gradually increase from below toward above. By means of the heat insulating chambers the solidification rate of the molten metal is regulated to prevent the formation of secondary pipes and segregation around the pipes within an ingot cast in the mold.
摘要翻译：大型铸锭模具具有绝热室，当四个侧壁中的每一个中形成较宽壁与宽度较小的壁的宽度的比值小于1.7:1时，并且当比例为1.7:1或更大时，形成在两个相对较宽的壁中的每一个中，并且其水平截面积从下向上逐渐增加。通过隔热室，调节熔融金属的固化速率，以防止二次管的形成和在模具内铸造的锭内的管周围的偏析。

4. 发明授权

US4134440A Method of continuously casting steel 失效
标题翻译：连铸钢的方法
公开(公告)号：US4134440A
公开(公告)日：1979-01-16
申请号：US751618
申请日：1976-12-16
申请人： Takaho Kawawa , Hideki Sato , Shinobu Miyahara
发明人： Takaho Kawawa , Hideki Sato , Shinobu Miyahara
IPC分类号： B22D11/20 , B22D11/22 , B22D11/16
CPC分类号： B22D11/225 , B22D11/207
摘要： In continuously casting molten steel at least a pair of rolls is disposed near the leading end of the crater at which solidification of the molten steel in the cast piece completes so as to roll the cast piece at a reduction rate of from 0.1 to 2.0%. The variation in the thickness of the cast piece is detected and compared with a definite reference value for controlling the drawing speed and or the quantity of the secondary cooling water.
摘要翻译：在连续铸造钢水中，至少一对辊设置在火山口的前端附近，铸钢件中的钢水的凝固完成，从而以0.1-2.0％的压下率滚动铸件。检测铸件厚度的变化，并将其与用于控制二次冷却水的拉拔速度和数量的确定参考值进行比较。

5. 发明授权

US4886547A Powder manufacturing apparatus and method therefor 失效
标题翻译：粉末制造装置及其制造方法
公开(公告)号：US4886547A
公开(公告)日：1989-12-12
申请号：US204426
申请日：1988-05-16
申请人： Hideaki Mizukami , Kentaro Mori , Akichika Ozeki , Takaho Kawawa , Yuji Sugitani , Hirokazu Nomura , Tadashi Fujioka , Hirotaka Nakagawa
发明人： Hideaki Mizukami , Kentaro Mori , Akichika Ozeki , Takaho Kawawa , Yuji Sugitani , Hirokazu Nomura , Tadashi Fujioka , Hirotaka Nakagawa
IPC分类号： B22F9/10 , B22F3/00
CPC分类号： B22F9/10
摘要： The present invention provides a method of efficiently and stably manufacturing a high-purity metal powder of a desired particle size, which is used for powder metallurgy or the like, by generating arc 18 between electrodes 12 and 13 to melt the distal end portions of the electrodes, causing droplets 19 of the molten metal to drop onto rotating disk 14, scattering the dropped droplets by a centrifugal force, thereby cooling the droplets, and an apparatus for the same.

6. 发明授权

US4764209A Method for manufacturing alloy 失效
标题翻译：制造合金的方法
公开(公告)号：US4764209A
公开(公告)日：1988-08-16
申请号：US92679
申请日：1987-09-03
申请人： Kentaro Mori , Hideaki Mizukami , Hirotaka Nakagawa , Akichika Ozeki , Takaho Kawawa
发明人： Kentaro Mori , Hideaki Mizukami , Hirotaka Nakagawa , Akichika Ozeki , Takaho Kawawa
IPC分类号： C22C1/02 , C22C33/00 , C22B4/00 , C21C5/52
CPC分类号： C22C1/02
摘要： A method for manufacturing alloy comprising: allowing a consumable electrode consisting a single metal element to form a pair of electrodes which have the same element, to set plurality of the pair so that an electrode metal element of each of the plurality of the pair may be different from one another; generating arc between the electrodes in a non-oxidizing atmosphere, to allow the consumable electrodes to be melted at their top ends; and allowing molten drops produced by the melting to go down into a mold to form molten metal, and the molten metal to be cast into alloy consisting of two metal elements. Two pairs consisting of the consumable electrodes allow the two consumable electrodes to be set on an axis, with a predetermined distance between their top ends, on horizontal plane above the mold.The two pairs of the consumable electrodes are alternated by three pairs of the consumable electrodes when alloy consisting of three metal elements.
摘要翻译：一种制造合金的方法，包括：使由单一金属元素构成的可消耗电极形成具有相同元件的一对电极，以设置多个所述一对电极，使得所述一对电极金属元件可以为彼此不同在非氧化气氛中在电极之间产生电弧，以允许消耗电极在其顶端熔化; 并使由熔融产生的熔滴落入模具中以形成熔融金属，并将待铸造的熔融金属制成由两个金属元素组成的合金。由消耗电极组成的两对允许将两个可消耗电极设置在轴线上，在其顶端之间的预定距离上，在模具上方的水平面上。当由三个金属元素组成的合金时，两对可消耗电极由三对可消耗电极交替。

7. 发明授权

US4619308A Mold for horizontally and continuously casting molten metal into cast metal strand 失效
标题翻译：用于水平和连续铸造熔融金属成铸造金属线的模具
公开(公告)号：US4619308A
公开(公告)日：1986-10-28
申请号：US734771
申请日：1985-05-16
申请人： Takaho Kawawa
发明人： Takaho Kawawa
IPC分类号： B22D11/04 , B22D11/045
CPC分类号： B22D11/045
摘要： A mold for horizontally and continuously casting molten metal into a cast metal strand, which is horizontally connected, through a front nozzle, a feed nozzle and a break ring to an opening in a lower portion of a side wall of a tundish for a horizontal type continuous casting machine. Molten metal received in the tundish is intermittently and continuously withdrawn into a cast metal strand in the horizontal direction through the mold in a plurality of cycles each comprising one pull and one push. The transverse sectional area of the inner bore of the mold at the inlet end portion thereof becomes gradually larger from the inlet end of the mold toward the middle portion thereof over a prescribed distance (l), and the inner bore of the mold has substantially the same transverse sectional area for the remaining portion other than the inlet portion of the mold over the above-mentioned prescribed distance (l).
摘要翻译：水平连续地将熔融金属水平连续铸造成水平连接的铸造金属股线的模具，前浇口，进料喷嘴和断环，用于水平型中间包的侧壁的下部的开口连铸机。在中间包中容纳的熔融金属在水平方向上以多次循环的方式间断地连续地退出铸造金属线，每个循环包括一次拉和一次推动。模具的入口端部的内孔的横截面积从模具的入口端朝向中间部分的规定距离（l）逐渐变大，并且模具的内孔基本上为相对于上述规定距离（l），除了模具的入口部分之外的剩余部分具有相同的横截面面积。

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