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1. 发明专利

JPH0826143A EXTRUDED MEMBER FOR HOLLOW PANEL, AND MANUFACTURE OF HOLLOW PANEL USING IT 失效
公开(公告)号：JPH0826143A
公开(公告)日：1996-01-30
申请号：JP16658394
申请日：1994-07-19
申请人： HONDA MOTOR CO LTD , SHOWA ALUMINUM CORP
发明人： SATO MASAKAZU , MOCHITO MINORU , SAITO YUJI , KITANO MITSUHIRO , TASHIRO YASUSHI , ONO TATSUJI
IPC分类号： B62D25/20 , B21C23/14
摘要： PURPOSE:To provide a manufacturing method of an extruded shape for a hollow panel and a hollow panel using the extruded shape to manufacture the wide hollow panel with less unevenness in a simple manner. CONSTITUTION:In an extruded shape 1 for a hollow panel, adjacent sets of at least two hollow panels 2, 3, 4, 5 are connected to each other in the V-shape or reverse V-shape through a connecting piece 6 at the end. Engagement parts 22, 32 to be engaged in the direction to keep the developed condition in the plane developed condition of the hollow panel unit are formed at the adjacent end part of the connected hollow panel unit. The positional relationship between the connecting piece and the engagement part in the thickness direction of the hollow panel unit is preferably reverse in an alternate manner for each connected part. In the manufacturing method of the hollow panel, the adjacent hollow panel units 2, 3, 4, 5 of the extruded shape 1 for the hollow panel are developed to be worked in the plane developed condition until the engagement parts 22, 32 of the adjacent end parts are engaged with each other by deforming the connecting piece 6.

2. 发明专利

JPH08174045A PRODUCTION OF METALLIC TUBE MATERIAL 失效
公开(公告)号：JPH08174045A
公开(公告)日：1996-07-09
申请号：JP32211394
申请日：1994-12-26
申请人： SHOWA ALUMINUM CORP
发明人： ONO TATSUJI
IPC分类号： B21C23/08 , B21C25/02 , F28F1/02
摘要： PURPOSE: To extrude integrally a tube material with communicating holes juxtaposed at spaced intervals on partition walls. CONSTITUTION: A female mold 7 having a forming hole bearing part 6 forming the outer peripheral part of the tube material and a male mold 10 having plural pieces of forming projecting parts 9... for forming the respective cells inside the tube material are combined. A die 11 for extrusion formed in such a manner that an extruding material is joined and compression bonded between the forming projecting parts 9... and that the partition walls are formed is used. Extrusion working is executed at the specified extrusion rate at which intermittent bead cracks are caused in the partition walls.

3. 发明专利

JPH07100553A STRETCH-OPENING METHOD 失效
公开(公告)号：JPH07100553A
公开(公告)日：1995-04-18
申请号：JP24660093
申请日：1993-10-01
申请人： SHOWA ALUMINUM CORP
发明人： ONO TATSUJI
IPC分类号： B21C37/02 , B21D25/02
摘要： PURPOSE:To provide a plate with excellent flatability from an extruded material where the whole or a part of the section is formed in the U-shape. CONSTITUTION:In a stretch opening method in which a thin-walled extruded mateiral 1 where the whole or a part of the section is formed in the U-shape having linear parts 3, 3 on each end of a curved part 2 in a semi-circular shape is stretched at the linear parts 3, 3 and opened at the curved part 2 to be worked into the plate, the extruded material 1 is formed to be thin-walled of the constant thickness at the curved part 2, and the thickness t1 is regulated to meet the inequality 0.7t

4. 发明专利

JPH08178568A METAL TUBE MATERIAL FOR HEAT EXCHANGER AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH08178568A
公开(公告)日：1996-07-12
申请号：JP32212294
申请日：1994-12-26
申请人： SHOWA ALUMINUM CORP
发明人： ONO TATSUJI , FURUKAWA YUICHI
IPC分类号： F28D1/053 , F28F1/02 , F28F1/40 , F28F3/04
摘要： PURPOSE: To increase the heat transfer area for heat exchanging by providing a fin protruding stripe raised in a cantilever state from its inner surface in a longitudinal direction and molding the stripe in a three-dimensional shape having different cross sectional shape at the longitudinal position. CONSTITUTION: The peripheral wall 2 of a tube material 1 is molded flatly in a cross sectional elliptical state, a partition wall 3 is connected at the upper and lower flat walls 2a of the wall 2, which is partitioned into a plurality of chambers 5 in its lateral direction. Fin protruding stripes 4 are so provided as to be alternately disposed at the walls 2a of the chambers 5 at adjacent chambers 5. The stripes 4 are molded in a three-dimensional shape having different cross sectional shape at the longitudinal position. Thus, the heat transfer area for heat exchanging can be increased by the stripes 4, thereby improving the heat exchanging performance as the material 1 for a heat exchanger.

5. 发明专利

JPH0719775A MULTIHOLE TUBE MATERIAL FOR HEAT EXCHANGER, EXTRUSION DIE FOR MANUFACTURING THE SAME TUBE MATERIAL AND MANUFACTURE OF THE SAME TUBE MATERIAL 失效
公开(公告)号：JPH0719775A
公开(公告)日：1995-01-20
申请号：JP15941293
申请日：1993-06-29
申请人： SHOWA ALUMINUM CORP
发明人： ONO TATSUJI , KITANO MITSUHIRO
IPC分类号： B21C23/08 , B21C25/02 , F28F1/02
摘要： PURPOSE:To improve productivity of a tube material for a heat exchanger of which the heat exchange efficiency is excellent, by a method wherein holes making adjacent chambers communicate with each other are provided in each partition wall and the respective communication holes of at least two or more partition walls are provided in a state of being asymmetric mutually on the right and the left, in the direction of the length of the tube. CONSTITUTION:A tube material 1 is a flat tube material. Inside a hollow part, three partition walls 2, 3 and 4 are disposed in the width direction and provided respectively with communication holes 2a, 3a and 4a, through which adjacent chambers 6 are made to communicate with each other. When the communication holes 3a provided in the partition wall 3 positioned in the center are compared with the communication holes 2a and 4a provided in the partition walls 2 and 4 positioned on the right and the left, the holes 3a, 2a and 4a are formed in a state of being asymmetric on the right and the left wherein they are different in the size of the hole, though identical in the number thereof for a unit length, in the direction of the length of a tube.

6. 发明专利

JPH07290159A MANUFACTURE OF DEEP DRAWING PRODUCT HAVING ARC-STATE RECESSED PART 失效
公开(公告)号：JPH07290159A
公开(公告)日：1995-11-07
申请号：JP9148494
申请日：1994-04-28
申请人： SHOWA ALUMINUM CORP
发明人： SAKAGUCHI MASASHI , ONO TATSUJI , MURAMATSU TOSHIAKI
IPC分类号： B21D22/20 , B21D51/16
摘要： PURPOSE:To enable manufacture of a deep drawing product without developing crack to a wall part at the deepest part of a recessed part by using a blank formed as narrower flange width than the flange width corresponding to the deepest part of the circular-arcuate recessed part. CONSTITUTION:The blank 4 is formed so as to have the circular-arcuate flange parts 5, 6 projected outward in the recessed part 2 side and a projected part 3 side of the drawing product 1 and have the shape and the size enabling the formation of the side walls of the product 1. The recessions 7, 7 are formed at both positions mutually adjoined while interposing the deepest part 2a so that the flange widths F2, F2 at both positions are made to be narrower than the flange width F1 at the position of the deepest part 2a in the flange part 5 at the recessed part side. The deep drawing is executed to the blank 4. In this way, strain in the circumferential direction can be made small at the flange part corresponding to the deepest part 2a in the circular-arcuate recessed part.

7. 发明专利

JPH07204770A MANUFACTURE OF SHORT METAL-MADE THREE DIMENSIONAL SHAPED PRODUCT HAVING FIXED PRODUCT LENGTH 失效
公开(公告)号：JPH07204770A
公开(公告)日：1995-08-08
申请号：JP376294
申请日：1994-01-18
申请人： SHOWA ALUMINUM CORP
发明人： ONO TATSUJI
IPC分类号： A63B59/51 , A63B102/18 , B21J5/06 , B21K17/00 , A63B59/06
摘要： PURPOSE:To manufacture a short metal-made three dimensional shaped product having the fixed product length with small manufacturing man-hour and good yield of production. CONSTITUTION:Each of blanks 25a-25d having the preset quantity according to the short product forming quantity is charged into each blank charging part 6-9 in a die 1, and during forming by pressurizing the blanks 25a-25d in the blank charging parts 6-9 with press rods 26a-26d, the combination of the pressurized blanks 25a-25d is changed.

8. 发明专利

JPH07308793A HOLLOW PANEL AND WELDING METHOD THEREFOR 失效
公开(公告)号：JPH07308793A
公开(公告)日：1995-11-28
申请号：JP10511394
申请日：1994-05-19
申请人： NICHIMO KK , SHOWA ALUMINUM CORP
发明人： ANZAI YUICHI , ONO TATSUJI
IPC分类号： B23K31/00 , B23K9/00 , B23K33/00
摘要： PURPOSE:To obtain the hollow panel and its welding method capable of easily restraining an assembled welding posture for welding with uniform force and easily securing a prescribed root opening. CONSTITUTION:In the hollow panel A, a hollow part 4a is formed with two base materials 1a, 2a partitioned with plural partition walls 3a at a prescribed distance, an engaging part is arranged in at least one end part so that the end part of the other hollow panel A is engaged in abutting state and the welding posture with the other hollow panel B is held. Also, the welding of hollow panels is executed in such method that after the two hollow panels A, B are abutted on each other and engaged in a engaging part formed at each end part to form a welding posture, the abutted part of two hollow panels A, B is welded.

9. 发明专利

JPH07171615A DIE FOR EXTRUSION 失效
公开(公告)号：JPH07171615A
公开(公告)日：1995-07-11
申请号：JP31865393
申请日：1993-12-17
申请人： SHOWA ALUMINUM CORP
发明人： ONO TATSUJI
IPC分类号： B21C25/02
摘要： PURPOSE:To extrude extruded materials having various three-dimensional shapes by variously combining material cunducting parts through which an extruding material is conducted. CONSTITUTION:A 1st square annular forming clearance 22 is composed of the combination of four unit forming clearances 24a, 24b, 24c, 24d which are mutually communicated in their four corner parts. And mutually independent material conducting parts 23a, 23b, 23c, 23d are respectively communicated to each unit forming clearance 24a, 24b, 24c, 24d and the extruding materials which flow through each material conducting part 23a, 23b, 23c, 23d are pressed to stick in the mutual communicating parts of each unit forming clearance 24a, 24b, 24c, 24d in the 1st forming clearance 22.

10. 发明专利

JPH07171614A DIE FOR EXTRUSION 失效
公开(公告)号：JPH07171614A
公开(公告)日：1995-07-11
申请号：JP31865293
申请日：1993-12-17
申请人： SHOWA ALUMINUM CORP
发明人： ONO TATSUJI
IPC分类号： B21C25/02
摘要： PURPOSE:To strongly press-fix the extruding material which is passed through a 2nd forming clearance to the extruding material which is passed through a 1st forming clearance by having the 1st and 2nd forming clearances and opening each side opening part of the 2nd forming clearance and material pool in the 1st forming clearance. CONSTITUTION:The 1st annular forming clearance 21 is formed between a male bearing part 20 and the hole part 13 of a female bearing. In the tip part of a forming projecting-part 19, the 2nd forming clearance 23 for forming a partition which is held between internal bearing parts 22, 22 which are forwardly opened in a slit shape is formed. The extruding material which goes to the side opening part of the 2nd forming clearance is press-fixed to the extruding material which is passed through the 1st forming clearance 21. While advancing motion of peripheral systems 7 to peripheral port hole 17 of a die 5 is continued, when advancing motion of the center system 7 in accordance with the material conducting hole 25 of a core 15 is stopped, formed products without partition are extruded.

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