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1. 发明申请

WO1987001184A1 OXYGEN GAS PRODUCTION UNIT 审中-公开
标题翻译：氧气生产单位
公开(公告)号：WO1987001184A1
公开(公告)日：1987-02-26
申请号：PCT/JP1986000409
申请日：1986-08-08
申请人： DAIDOUSANSO CO., LTD. , YOSHINO, Akira
发明人： DAIDOUSANSO CO., LTD.
IPC分类号： F25J03/04
CPC分类号： F25J3/04181 , F25J3/04018 , F25J3/0409 , F25J3/04157 , F25J3/04212 , F25J3/04218 , F25J3/04254 , F25J3/04412 , F25J3/04636 , F25J3/0486 , F25J3/04866 , F25J2200/06 , F25J2205/32 , F25J2205/34 , F25J2205/60 , F25J2205/70 , F25J2210/50 , F25J2230/04 , F25J2235/50 , F25J2250/40 , F25J2250/50 , Y10S62/913
摘要： A unit for producing an oxygen gas of a super-high purity by deep freezing of the air, and an object of the present invention is to provide an oxygen gas production unit capable of dispensing with an expansion turbine which is expensive and which often causes troubles. In the unit according to the present invention, a liquid oxygen storage means (23) is connected via an introduction passage (23a) to an upper portion (15) of a rectifier (11) which consists of the upper portion (15) provided with a condenser (16) therein and a lower portion (12) of an intermediate pressure, so as to cool the condenser (16) with liquid oxygen. The compressed air of a super-low temperature is fed into the interior of the lower portion (12) of an intermediate pressure of the rectifier (11) via an air-compressing means (1), an air cooling column (6), an adsorption column (7) and a heat-exchanging means (8), and then cooled with the latent heat of vaporization of a refluxing liquid nitrogen obtained in the condenser (16) to thereby convert the resultant air into liquid air having a higher oxygen content. This liquid air is introduced into the upper portion (15), and the nitrogen is taken out as a gas of an intermediate pressure from the top of the upper portion (15) with the oxygen left therein in a liquid state by utilizing a difference between the boiling points of the two substances. The gasified oxygen obtained from the remaining liquid oxygen is utilized as a product oxygen gas.

2. 发明申请

WO1992008556A1 METHOD OF MANUFACTURING ROLLED PRODUCT OF TITANIUM MATERIAL 审中-公开
标题翻译：制造钛材料轧制产品的方法
公开(公告)号：WO1992008556A1
公开(公告)日：1992-05-29
申请号：PCT/JP1991001598
申请日：1991-11-20
申请人： DAIDOUSANSO CO., LTD. , YOSHINO, Akira , SENBOKUYA, Haruo , TAHARA. Masaaki
发明人： DAIDOUSANSO CO., LTD.
IPC分类号： B21B03/00
CPC分类号： B21B9/00 , B21B3/00 , Y02P70/125
摘要： A method of manufacturing rolled products, in which a titanium material in the heated state is brought into contact with fluoric gas so as to form a fluoridized film on said material and then is rolled into a product immediately after removal of said fluoridized film. Hence, a passive film such as oxidized film on the titanium material turns into a fluoridized film to protect the surface of said material. Accordingly, even with the lapse of time between formation of a fluoridized film and removal thereof, the fluoridized film formed on the surface of the titanium material protects said surface in favorable condition and, therefore, prevents an oxidized film from being formed again on said surface.

3. 发明申请

WO1986000693A1 APPARATUS FOR PRODUCING HIGH-FREQUENCY NITROGEN GAS 审中-公开
标题翻译：用于生产高频氮气的装置
公开(公告)号：WO1986000693A1
公开(公告)日：1986-01-30
申请号：PCT/JP1985000385
申请日：1985-07-08
申请人： DAIDOUSANSO CO., LTD , YOSINO, Akira
发明人： DAIDOUSANSO CO., LTD
IPC分类号： F25J03/04
CPC分类号： F25J3/044 , F17C9/04 , F17C2205/0326 , F17C2205/0341 , F17C2221/011 , F17C2221/014 , F17C2221/05 , F17C2223/0161 , F17C2223/033 , F17C2225/0123 , F17C2227/0311 , F17C2227/039 , F17C2227/045 , F17C2250/0408 , F17C2250/0439 , F17C2265/015 , F25J3/042 , F25J3/04218 , F25J3/04254 , F25J3/0426 , F25J3/0443 , F25J3/04636 , F25J3/04824 , F25J3/0486 , F25J2200/30 , F25J2200/50 , F25J2200/74 , F25J2205/60 , F25J2210/42 , F25J2245/40 , F25J2245/42 , F25J2250/20 , F25J2250/40 , F25J2250/50 , F25J2290/10 , F25J2290/62 , Y10S62/913
摘要： Apparatus for producing nitrogen gas of a super-high purity by subjecting air to supercooling, liquefaction and separation. It is an object of this invention to obtain an apparatus for producing nitrogen gas of a super-high purity, which does not require an expensive expansion turbine which frequently malfunctions. The apparatus according to the present invention is formed by connecting a liquid nitrogen storage means (23) via a first introduction passage (24a) to a fractionating tower (15), into which the outside air is introduced in the form of chilled, compressed raw air via an air-compressing means (9) and heat exchange means (13), (14); and this storage means (23) to the heat exchange means (13), (14) via a second introduction passage (24b). The raw air is cooled to a supercooled temperature by the heat loss in the evaporation of liquid nitrogen, and this air of a supercooled temperature is further cooled by the heat loss of evaporation of liquid nitrogen in the fractionating tower (15). The nitrogen is recovered in the liquid phase, and the oxygen is left in the liquid phase, by utilizing the difference between the boiling points thereof. The nitrogen gas thus obtained is mixed with the gasified liquid nitrogen from the liquid nitrogen storage means (23) to form the finished product, nitrogen gas.

4. 发明申请

WO1992008820A1 CRANKSHAFT AND METHOD OF MANUFACTURING THEREOF 审中-公开
标题翻译：起重机及其制造方法
公开(公告)号：WO1992008820A1
公开(公告)日：1992-05-29
申请号：PCT/JP1991001597
申请日：1991-11-20
申请人： DAIDOUSANSO CO., LTD. , YOSHINO, Akira
发明人： DAIDOUSANSO CO., LTD.
IPC分类号： C23C08/26
CPC分类号： F16C3/14 , C23C8/26 , C23C8/34
摘要： A crankshaft having the surface layer of the journal only thereof formed of a hard nitride. Thus, the crankshaft is lower in price, lighter, and more durable than those composed of hard material throughout. A method of this invention applies fluoridization to the crankshaft prior to nitridation. In this way, a passive film such as oxidized film on the surface of the journal turns into a fluoridized film to protect said surface. Accordingly, even after the lapse of time from formation of a fluoridized film to nitridation, the fluoridized film formed on the surface of said journal protects said surface in favorable condition and, as a result, prevents an oxidized film from being formed again on said surface.

5. 发明申请

WO1992008561A1 MAKING OF PRESSURE-MOLDED PRODUCT FROM ALUMINUM POWDER 审中-公开
标题翻译：由铝粉制成的压模产品
公开(公告)号：WO1992008561A1
公开(公告)日：1992-05-29
申请号：PCT/JP1991001600
申请日：1991-11-20
申请人： DAIDOUSANSO CO., LTD. , YOSHINO, Akira , SENBOKUYA, Haruo , TAHARA, Masaaki
发明人： DAIDOUSANSO CO., LTD.
IPC分类号： B22F01/02
CPC分类号： B22F1/0088
摘要： A method of making a pressure-molded product from aluminum powder through the process that aluminum powder is brought into contact with fluoric gas while heated so as to form a fluoridized film on the surface of said aluminum powder and then subjected to pressure molding immediately after removal of the fluoridized film on said surface. Thus, a passive film such as an oxide film on the surface of alumium powder turns into a fluoridized film to protect said surface. Even with the lapse of time between formation and removal of a fluoridized film, the fluoridized film formed on the surface of aluminum powder protects said surface and consequently prevents an oxide film from being formed on said surface again. Since the fluoridized film is decomposed and removed immediately before pressure-molding, it is not necessary to heat aluminum powder containing a mixture of various kinds of powder materials before pressure-molding.
摘要翻译：通过铝粉与加热氟化气体接触而在铝粉表面形成氟化膜的方法，由铝粉制造加压成型体的方法，然后在除去后立即进行加压成型的所述表面上的氟化膜。因此，在铝粉表面上的诸如氧化膜的钝化膜变成氟化膜以保护所述表面。即使在形成和除去氟化膜之间的时间过去，形成在铝粉表面上的氟化膜保护所述表面，因此防止再次在所述表面上形成氧化膜。由于氟化膜在加压成形之前立即分解除去，因此在加压成型前不需要加热含有各种粉末材料的混合物的铝粉末。

6. 发明申请

WO1992008819A1 ROTATING SHAFT OF MOTOR AND METHOD OF MANUFACTURE THEREOF 审中-公开
标题翻译：电动机的旋转轴及其制造方法
公开(公告)号：WO1992008819A1
公开(公告)日：1992-05-29
申请号：PCT/JP1991001596
申请日：1991-11-20
申请人： DAIDOUSANSO CO., LTD. , YOSHINO, Akira
发明人： DAIDOUSANSO CO., LTD.
IPC分类号： C23C08/26
CPC分类号： F16C33/14 , C23C8/26 , C23C8/34 , F16C3/02 , H02K5/1672 , H02K5/1732
摘要： The rotating shaft of a motor has the surface layer of the journal only thereof formed of hard nitride. Thus, the shaft is lower in price, lighter, and more durable than those composed of hard material throughout. A method of this invention applies fluoridization to the shaft prior to nitridation. In this way, a passive film such as oxidized film on the surface of the journal turns into a fluoridized film to protect said surface. Accordingly, even after the lapse of time from formation of a fluoridized film to nitridation, the fluoridized film formed on the surface of said journal protects said surface in favorable condition and prevents an oxidized film from being formed again on said surface.

7. 发明申请

WO1985004466A1 APPARATUS FOR PRODUCING HIGH-PURITY NITROGEN GAS 审中-公开
标题翻译：用于生产高纯度氮气的装置
公开(公告)号：WO1985004466A1
公开(公告)日：1985-10-10
申请号：PCT/JP1984000151
申请日：1984-03-29
申请人： DAIDOUSANSO CO., LTD. , YOSINO, Akira
发明人： DAIDOUSANSO CO., LTD.
IPC分类号： F25J03/04
CPC分类号： F25J3/044 , F17C9/04 , F17C2201/0109 , F17C2203/0391 , F17C2221/011 , F17C2221/014 , F17C2221/031 , F17C2223/0123 , F17C2223/0161 , F17C2270/0518 , F25J3/0426 , F25J3/04636 , F25J3/04824 , F25J2200/74 , F25J2205/60 , F25J2210/42 , F25J2245/42 , F25J2250/42 , F25J2290/10 , F25J2290/62 , Y10S62/908 , Y10S62/913
摘要： This apparatus produces ultra-high purity nitrogen gas employed in fields such as the electronics industry when manufacturing a silicon semiconductor, for example. Conventional cryogenic liquefaction and PSA nitrogen gas production apparatuses often break down, and the nitrogen gas obtained by these conventional apparatuses is expensive, but its purity is not particularly high. In the apparatus of the present invention, a liquid nitrogen storage means (23) is connected to heat exchange means (13), (14) by an inlet path (16), and compressed air arriving at the heat exchanger means (13), (14) through an air compression means (9) and an elimination means (12) is cooled to an ultra-low temperature by the heat of evaporation of liquid nitrogen, and is pumped into a fractionating tower (15) from which nitrogen is taken out in a gaseous state leaving oxygen as a liquid, making use of the difference in boiling points therebetween. The obtained nitrogen gas is mixed with vaporized liquid nitrogen from the liquid nitrogen storage means (23) to obtain the final nitrogen gas. This makes it possible to produce inexpensive, high-purity nitrogen gas, with little likelihood of mechanical failure.

8. 发明申请

WO1992008560A1 METHOD OF MAKING PRESSURE-MOLDED PRODUCT FROM ALUMINUM POWDER 审中-公开
标题翻译：从铝粉制造压力成型产品的方法
公开(公告)号：WO1992008560A1
公开(公告)日：1992-05-29
申请号：PCT/JP1991001599
申请日：1991-11-20
申请人： DAIDOUSANSO CO., LTD. , YOSHINO, Akira , SENBOKUYA, Haruo , TAHARA, Masaaki
发明人： DAIDOUSANSO CO., LTD.
IPC分类号： B22F01/02
CPC分类号： B22F1/0088 , C01B21/0722 , C04B35/581 , C22C32/0068
摘要： A method of making a pressure-molded product from aluminum powder according to this invention consists in a fluoridizing process performed prior to nitriding process. Thus, a passive film such as an oxide film on the surface of aluminum powder turns into a fluoridized film to protect the surface of aluminum powder. Therefore, even with the lapse of time between formation of the fluoridized film and nitriding process, the fluoridized film formed on the surface of aluminum powder protects said surface in satisfactory condition and prevents an oxide film form from being formed again. Since the fluoridized film is decomposed at the time of subsequent nitriding process, N atoms acting during the nitriding process are dispersed evenly and deeply into the surface layer of aluminum powder to form a uniform hard nitride layer.
摘要翻译：根据本发明的由铝粉制备加压成型产品的方法在于在氮化处理之前进行的氟化处理。因此，在铝粉表面上的钝化膜如氧化膜变成氟化膜以保护铝粉表面。因此，即使在形成氟化膜之间经过时间和氮化处理之间，形成在铝粉表面上的氟化膜在令人满意的状态下保护所述表面，并且防止再次形成氧化膜形式。由于在随后的氮化处理中氟化膜分解，在氮化过程中作用的N原子均匀地深度分散在铝粉的表面层中以形成均匀的硬质氮化物层。

9. 发明申请

WO1987001185A1 OXYGEN GAS PRODUCTION UNIT 审中-公开
标题翻译：氧气生产装置
公开(公告)号：WO1987001185A1
公开(公告)日：1987-02-26
申请号：PCT/JP1986000410
申请日：1986-08-08
申请人： DAIDOUSANSO CO., LTD. , YOSHINO, Akira
发明人： DAIDOUSANSO CO., LTD.
IPC分类号： F25J03/04
CPC分类号： F25J3/0483 , F25J3/0409 , F25J3/04254 , F25J3/04309 , F25J3/04412 , F25J3/04824 , F25J3/04866 , F25J2210/50 , F25J2235/50 , F25J2250/50 , F25J2250/52 , F25J2290/62 , Y10S62/913
摘要： A unit for producing an oxygen gas of a superhigh purity by deep freezing of the air, and an object of the present invention is to obtain a unit which is capable of dealing with sudden variations in the demand for an oxygen gas, by using both an expansion turbine and a liquid oxygen storage means as the refrigerating source. In this unit, a liquid oxygen storage means (23) is connected to an upper portion (14) of a rectifier, provided with a condenser (17) therein, via an introduction passage (23a) so as to cool said condenser with a liquid oxygen, and a lower portion (15) of the rectifier and an expansion turbine (31) for cooling a heat exchanger (7) are connected by an introduction passage (29). The raw compressed air is cooled to a super-low temperature in the heat exchanger, and then fed to the lower portion of the rectifier, in which the resultant air is further cooled with the latent heat of vaporization of a refluxing liquid nitrogen obtained in the condenser, to obtain liquid air having a higher oxygen content. This liquid air is introduced into the upper portion of the rectifier to separate a liquid containing oxygen alone from the liquid air, by utilizing a boiling point difference, and the remainder is discharged to the outside as waste nitrogen. The liquid oxygen is taken out through a conduit (32), and then gasified and taken out as a product oxygen gas through a conduit (35).
摘要翻译：高纯度气体制氧装置，在非常低的空气温度下冷却。本发明的一个目的是提供一种单元，该单元能够使用膨胀涡轮机和液氧储存部件作为一个单元来对氧气需求的突然变化做出反应。制冷源。在所述单元中，液态氧储存元件（23）经由引入通道（23a）连接到整流器的上部（14），冷凝器（17）位于所述整流器的上部允许所述冷凝器用液氧冷却，并且精馏器的下部（15）和用于冷却热交换器（7）的膨胀涡轮（31）通过插入通道（29）连接。）。被压缩的原始空气在热交换器中被冷却到极低的温度，然后被送到整流器的底部，在那里随着氮气的潜热以液态被潜热冷却。在冷凝器中回流，以获得具有较高氧含量的液体空气。这种液体空气被引入整流器的上部，利用沸点之间的差异从液态空气中分离出仅含有氧的液体，残余物以废氮。液氧通过管线（32）排出，然后通过管线（35）以气态形式气化和提取。

10. 发明专利

AU7812691A NITRIDING OF FLUORIDE-ACTIVATED STEEL 未知
公开(公告)号：AU7812691A
公开(公告)日：1992-12-17
申请号：AU7812691
申请日：1991-06-04
申请人： DAIDOUSANSO CO., LTD.
发明人： AKIRA YOSHINO , MASAAKI TAHARA , HARUO SENBOKUYA , KENZO KITANO , TERUO MINATO
IPC分类号： C23C8/08 , C23C8/26 , C23C8/34

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