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1. 发明专利

JP2004344966A Freezing method and freezer 审中-公开
公开(公告)号：JP2004344966A
公开(公告)日：2004-12-09
申请号：JP2003147963
申请日：2003-05-26
申请人： Yamaha Motor Co Ltd , ヤマハ発動機株式会社
发明人： NAKAJIMA TOMOYUKI , TASHIRO YOJI , YOSHINO TAMIO
IPC分类号： F25D13/00 , B21D7/00 , B21D9/18 , B21D53/84
摘要： PROBLEM TO BE SOLVED: To provide a freezing method and a freezer in which a frozen state of a frozen object successively used for the succeeding process can be equalized to the utmost.
SOLUTION: The frozen object is frozen as follows. It is moved in a hung and immersed state into a freezing tank from the above, in which a freezing coolant cooled by a freezing machine is stored, in a distance between from an immersion position for immersing the object into the coolant to a release position for releasing the frozen object from the coolant.
COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JPH08187521A MANUFACTURE FOR U-TYPE BEND PIPE WITH COMPARATIVELY LARGE CURVATURE 失效
公开(公告)号：JPH08187521A
公开(公告)日：1996-07-23
申请号：JP34099794
申请日：1994-12-30
申请人： FUJII MASAKATSU
发明人： FUJII MASAKATSU
IPC分类号： B21D7/06 , B21D9/01 , B21D9/18
摘要： PURPOSE: To inexpensively and efficiently produce a U-type bend pipe with a comparatively large curvature without flat part, wrinkle, etc., by inserting a metal slender bar closely into the inside of a tube, bending the tube to the U-type by using press and bending die, and after that, pulling out the metal slender bar from the tube. CONSTITUTION: A tube 1 with proper length is formed by cutting a steel pipe. On the other hand, a metal slender bar 2 with proper length is formed by cutting a copper-plated annealing wire in length slightly longer than the dimension of the tube 1. And, the metal slender bar 2 is closely inserted into the inside of the tube 1 with a manual operation. Successively, the tube 1 is pushed and bent by placing the tube 1 with the metal slender bar 2 inserted on the guide grooves of a pair of rollers 5 and 5, and lowering and operating a die 6 fixed on the output end 3a of a press 3. After this, the metal slender bar 2 is pulled out from the tube 1 by using a proper tool. For the U-type tube 1 obtained in this way, an unnecessary length part is cut, successively, each end face is properly chamfered, and the tube 1 is made a U-type bend pipe.

3. 发明专利

JPH02127927A BENDING METHOD FOR METALLIC TUBE 失效
公开(公告)号：JPH02127927A
公开(公告)日：1990-05-16
申请号：JP28211688
申请日：1988-11-08
申请人： HORIUCHI YASUSHI
发明人： HORIUCHI YASUSHI
IPC分类号： B21D7/00 , B21D7/16 , B21D9/18
摘要： PURPOSE:To execute bending by a simple equipment even with respect to a metallic tube whose wall thickness is thick or whose outside diameter is large by performing the bending in a state that the outside surface part and the inside surface part of the wall thickness part of a bending part of the metallic tube hold rigidity and the inside of the wall thickness part is plastic at a high temperature. CONSTITUTION:In a state that a core 20 is inserted into a hollow part of a metallic tube 10, the metallic tube 10 is allowed to pass through a high frequency heating furnace 40 and a jig 30 and fed in the direction P. The high frequency heating device 40 executes high frequency heating until the inside 13 of a wall thickness part of the metallic tube 10 which is allowed to pass through its device is plasticized, and it is set so as to execute such heating as the inside surface part 11 and the outside surface part 12 of the wall thickness part of the metallic tube 10 can hold its rigidity. The part of the metallic tube 10 which passes through the high frequency heating device 40 is allowed to pass through the jig 30, and bent to a desired curvature by applying suitable bending stress by its jig 30 in a state that the outside surface part 12 and the inside surface part 11 of the wall thickness part hold rigidity as a metal, and the inside 13 of the wall thickness part is plastic at a high temperature. Thereafter, the metallic tube 10 is cooled and the inside 13 of the wall thickness part is returned to a rigid body, and bending is completed.

4. 发明专利

JPS62166028A MICRO RADIUS BENDING METHOD FOR ALUMINUM ALLOY TUBE 失效
公开(公告)号：JPS62166028A
公开(公告)日：1987-07-22
申请号：JP643486
申请日：1986-01-17
申请人： HITACHI LTD
发明人： TATEISHI HIROYUKI , TAMURA JUNJI
IPC分类号： B21D7/025 , B21D7/00 , B21D7/16 , B21D9/18
摘要： PURPOSE:To enable a micro radius (R) bending by restraining the generation of a thickness reduction and thickness deviation accompanied by the working, by fitting the cooling device by a liquid nitrogen to the bender for working and by performing a rotary stretch bending of Al-Mg alloy pipe at very low temp. in case of bending the Al-Mg alloy tube. CONSTITUTION:Al-Mg group alloy has the minimum elongation at room temp. and a large value at the high temp and low temp. sides, the tensile stress becomes high at low temp. and needs the security of the rigid force for obtaining uniform plastic flow and an elongation as the optimum conditions in the rotary bending and the optimum temp. in the bending is about -200 deg.C. In case of performing the micro R bending of the Al-Mg group alloy tube, it is possible by restraining the thickness reduction and thickness deviation due to the plastic deformation by performing the rotary bending with cooling to the very low temp. of -196 deg.C by liquid nitrogen.

5. 发明专利

JPS62101326A METHOD AND DEVICE FOR MANUFACTURING BEND PIPE 失效
公开(公告)号：JPS62101326A
公开(公告)日：1987-05-11
申请号：JP23860785
申请日：1985-10-26
申请人： DAI ICHI HIGH FREQUENCY CO LTD
发明人： YAMAGUCHI JOSUKE , FUJITA MASATSUGU
IPC分类号： B21D7/16 , B21D9/05 , B21D9/18
摘要： PURPOSE:To prevent the thickness increase on the bend inner peripheral side and to obtain the bend pipe with uniform thickness by cutting the pipe wall of the bend inner peripheral side at the part where a bend deformation is caused or at the position before that. CONSTITUTION:The pipe 3 to be bent is held by a tail stock and whirling arm and heated in annular shape of narrow width zone by an inductor 22 from the pipe inner face. When the tail stock is advanced in this state, the annular heating part is moved in the longitudinal direction of the pipe and simultaneously a bend moment is applied on the pipe 3 by the whirling arm and bend deformation is performed from the annular heating part. The continuous bending is performed by rapidly cooling with the cooling water from a cooling device 35 immediately thereafter. In this case, the pipe 3 has the tendency to become flat at the bend deforming time, but due to the 1st and 2nd mandrels 20, 21 being arranged inside the pipe, the flattening of the pipe cross section is prevented and yet the thickness increasing part due to the bend is bulged to the outer face side of the pipe at the bend inner peripheral side. This bulging part is cut and removed by the cutter 31 which is driven with turning by a motor 33. In this way the bend pipe having the pipe wall in comparatively uniform thickness is obtd.

6. 发明专利

JPS5938048B2 JPS5938048B2 - 失效
公开(公告)号：JPS5938048B2
公开(公告)日：1984-09-13
申请号：JP11346875
申请日：1975-09-18
申请人： Daiichi Koshuha Kogyo Kk
发明人： KAWANAMI SHUNPEI , HANAMOTO YUKIMITSU
IPC分类号： B21D7/025 , B21D7/16 , B21D9/00 , B21D9/18
CPC分类号： B21D7/162 , B21D7/025 , B21D9/00 , B21D9/18

7. 发明专利

JPS55128326A TILTING DEVICE OF HEATING PLASTIC WORKING MACHINE 失效
公开(公告)号：JPS55128326A
公开(公告)日：1980-10-04
申请号：JP3734079
申请日：1979-03-29
申请人： SUMITOMO METAL IND , SUMIKIN KIKO KK , MEIDENSHA ELECTRIC MFG CO LTD
发明人： KAGEYOSHI IWAO , MOROOKA WAHEI , YAMAMOTO HITOSHI , SHIBAZAKI HIROSHI , HIURA EIJI , ASANO MITSUSHI
IPC分类号： B21D7/16 , B21D9/18
摘要： PURPOSE:To improve the heating efficiency of the captioned device by tilting and moving high-frequency heating coils in follow-up to the core metal whose inclination changes with a receiving roll as a fulcrum at the feeding of the work. CONSTITUTION:At the time of inserting the tubular work onto a core metal 3 from its stem part, a contact body 17 oscillates about an oscillating axis 17a while making contact with the core metal 3 tilting with a receiving roll 11 as a fulcrum. The oscillating angle of this contact body 17 is measured accurately by the inclination detector 21 provided to a stand 16. A tilting table 15 is tilted by the operation of the actuator 23 which is controlled by a detector 21. Namely, it turns out that the tilting table 15 tilts in follow-up to the core meral 3 and therefore the coils to be respectively built in coil containers 18, 19, 20 mounted to the tilting table 15 tilt and move while maintaining always a fixed relative positive with respect to the core metal 3. Hence, the spacing between each coil and core metal 3 may be narrowed down to a minimum required limit with respect to the work, whereby the heating efficiency may be improved.

8. 发明专利

JPS5236553A METHOD OF AND APPARATUS FOR CONTINUOUSLY BENDING LONG MATERIAL 失效
公开(公告)号：JPS5236553A
公开(公告)日：1977-03-19
申请号：JP11346875
申请日：1975-09-18
申请人： DAIICHI KOSHUHA KOGYO KK
发明人： KAWANAMI SHIYUNPEI , HANAMOTO YUKIMITSU
IPC分类号： B21D7/025 , B21D7/16 , B21D9/00 , B21D9/18

9. 实用新型

JPS5019005Y2 失效
公开(公告)号：JPS5019005Y2
公开(公告)日：1975-06-10
申请号：JP2312871
申请日：1971-04-01
IPC分类号： B21C37/28 , B21D7/00 , B21D7/16 , B21D9/00 , B21D9/18

10. 发明专利

JPS5038122A 失效
公开(公告)号：JPS5038122A
公开(公告)日：1975-04-09
申请号：JP8903373
申请日：1973-08-08
IPC分类号： F16L9/19 , B21D7/00 , B21D7/08 , B21D9/18 , F16L9/02

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