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131. 发明专利

JP2894536B2 失效
公开(公告)号：JP2894536B2
公开(公告)日：1999-05-24
申请号：JP3500894
申请日：1994-03-04
申请人： UBE KOSAN KK
发明人： IWAI HIDEKI , FUJII SETSUO
IPC分类号： B21C25/02 , B21C27/04 , B21C35/04

132. 发明专利

JP2887887B2 失效
公开(公告)号：JP2887887B2
公开(公告)日：1999-05-10
申请号：JP31837093
申请日：1993-12-17
申请人： UBE KOSAN KK
发明人： IWAI HIDEKI , FUJII SETSUO
IPC分类号： B21C27/04

133. 发明专利

JPH09155440A EXTRUSION EQUIPMENT 失效
公开(公告)号：JPH09155440A
公开(公告)日：1997-06-17
申请号：JP32064995
申请日：1995-12-08
申请人： UBE INDUSTRIES
发明人： OBA HIROYOSHI
IPC分类号： B21C26/00 , B21C27/04 , B21C29/00
摘要： PROBLEM TO BE SOLVED: To prevent generation of defects such as blister by arranging a cooling device to cool a sealing material on a seal block to allow the outer end face side of a billet to be cooled and to regulate the flow in the outer circumferential surface of the billet metal. SOLUTION: A plurality of secondary refrigerant passages 97 communicated with a primary refrigerant passage 96 are formed between an inner seal block 40A and an outer seal block 40B opposite to the primary refrigerant passage 96. The refrigerant introduced into the secondary refrigerant passages 97 appropriately cool a seal packing 41 by the refrigerant to be blown from a second gas blowing outlet 101 opened in a side of the seal packing 41. The gas for cooling is constantly blown from a first gas blowing outlet 100 of the inner seal block 40A and the second gas blowing outlet 101 of the outer seal block 40B irrespective of the retraction limit position at which the seal block 40 is opened or the advancement limit position at which the seal block is closed.

134. 发明专利

JPH0994608A EXTRUSION FORMING DEVICE 失效
公开(公告)号：JPH0994608A
公开(公告)日：1997-04-08
申请号：JP25276695
申请日：1995-09-29
申请人： UBE INDUSTRIES
发明人： OBA HIROYOSHI
IPC分类号： B21C26/00 , B21C27/00 , B21C27/04 , B21C29/00
摘要： PROBLEM TO BE SOLVED: To prevent the quality of the extruded shape and yield from lowering due to blister inclusion by arranging a cooling device to cool a seal member in a pair of bisected annular seal blocks freely to be opened/closed. SOLUTION: A cooling gas medium is constantly and respectively blown toward seal packings 44, 41 from both a first gas blowing mouth 100 and second gas injection mouth 101 arranged to an inner seal block 40A. When a seal block 40R (40L) approaches more to an extruding stem 14 and fixed dummy block 70, the outer cirumferential face of a heat insulating pressure plate 48 and heat insulating ring 53 are cooled and the stuck dust is blown off with pressure of the cooling gas medium blown from the first gas blowing mouth 100 and second gas blowing mouth 101. After the seal block 40R (40L) is abutted on the fixed dummy block 70 and heat insulating ring 53, the cooling gas medium to be continued to blow is blocked with the seal packings 41, 44 not to communicate to a deaerating space 31.

135. 发明专利

JPH07314032A METHOD AND DEVICE FOR EXTRUSION 失效
公开(公告)号：JPH07314032A
公开(公告)日：1995-12-05
申请号：JP11300994
申请日：1994-05-26
申请人： UBE INDUSTRIES
发明人： FUJII SETSUO , OBA HIROYOSHI
IPC分类号： B21C27/04
摘要： PURPOSE:To enable an extrusion cycle whose degassing process is unnecessary by deaerating air existing between container and billet out of a container before a billet is extruded through a die from the inside of the container, and effectively extruding the billet without containing air. CONSTITUTION:A temporary stop mechanism is provided, by which air existing in a space between extruding container 1 and billet 13, is allowed to temporarily stop just before the container 1 comes into contact with a die 3 before the extrusion of the billet is started. An outer ring 10 is fixed on the end face on the die side of a container tire 2, further, a seal ring which is allowed to freely, movably and undetachably engage in an extruding direction to the outer ring 10, is allowed to abut on a die ring 5. On the other hand, the container is evacuated after arranging a seal block 40 on the end face of the container on an extrusion stem 14 side and making the seal block 40 come into close contact with the outer peripheral surface of the extrusion stem 14. Consequently, an extruded product without the entrainment of air, can be easily attained.

136. 发明专利

JPH07178446A HOT EXTRUSION METHOD OF AL 失效
公开(公告)号：JPH07178446A
公开(公告)日：1995-07-18
申请号：JP32893493
申请日：1993-12-24
申请人： SHOWA ELECTRIC WIRE & CABLE CO
发明人： KASAHARA TOSHIO , IMAI AKIRA , INAI TOSHIAKI , MATSUMOTO NOBUYUKI
IPC分类号： B21C27/04 , B21C29/02
摘要： PURPOSE:To prevent the generation of air hole, vertical crack, etc., due to air entrapment. CONSTITUTION:An Al billet 2 is placed in contact with a remained billet 2' in a container 1, a cap shape cover body 10 of pure Al is inserted in the rear end of the billet 2. A flange part 10b of the cover body 10 is placed in contact with a seal part 11a of a seal ring 11, a fastening ring 12 is mounted above the seal ring, the inside of the container 1 is tightly sealed. Further, after the space between container and billet is evacuated by connecting a gas deplating pipe 10a to a vacuum pump, upsetting is applied with proceeding a piston rod, by executing extrusion after Al is filled in the container 1, the entrapment of air in a material to be extruded is prevented.

137. 发明专利

JPH0775823A METHOD AND PRESS FOR EXTRUDING METAL BILLET 失效
公开(公告)号：JPH0775823A
公开(公告)日：1995-03-20
申请号：JP9438194
申请日：1994-05-06
申请人： CLECIM SA
发明人： BETSUSE GII
IPC分类号： B21C23/21 , B21C27/04
摘要： PURPOSE: To provide an extrusion process for metal billets which eliminates the waste of time and enhances productivity and an extrusion press. CONSTITUTION: The bottom of a container 3 having a cylindrical housing 4 is closed by a supporting piece 13 and a die 14 is housed in the supporting piece and is supported at a stationary cross piece 1. The billet 6 is put into the cylindrical housing 4 and a dummy block 5 of the same cross section as the cross section of the cylindrical housing is penetrated into the cylindrical housing by a piston 52 of a main cylinder 53 disposed at another stationary cross piece 11, by which the billet 6 is subjected to pre-compression between the dummy block and the supporting piece 13. During this pre-compression, the pressing of the container to the supporting piece is prevented, by which a slight spacing (e) is maintained between the supporting piece and the corresponding end of the container. As a result, the air in the housing is gradually expelled until the billet 6 is completely added to the wall of the housing 4 during the pre-compression. The extrusion of the billet 6 in the absent state of the air is thus made possible.

138. 发明专利

JPH03413A EXTRUSION-MOLDING METHOD AND EXTRUSION COMPRESSOR 失效
公开(公告)号：JPH03413A
公开(公告)日：1991-01-07
申请号：JP12280490
申请日：1990-05-10
申请人： INDARETSUKUSU LTD
发明人： MAIKERU JIEEMUZU NIYUUMAN
IPC分类号： B21C23/21 , B21C27/04
摘要： PURPOSE: To shorten the time for a producing cycle in an extrusion press by sucking and evacuating a void space between a pressure pad, billet and die extruding surface in the inner part of a billet container through the pressure pad and hollow extrusion stem before applying the extrusion. CONSTITUTION: The container 5 is tightly sealed with the die 6 and the billet 12 is inserted between the pressure pad 4 and the container 5 and charged into the container 5 with the pressure pad 4 by advancing a ram 2. Successively, the void space between the billet 12, pressure pad 4, die 6 surface and container 5 is perfectly evacuated by opening a switch valve 9 and connected with a vacuum reservoir 7 through a vacuum line 8, and the billet 12 is extruded by advancing the ram 2. Successively, the ram 12 is further advanced by closing the switch valve 9, and at the time of completing the extrusion, the compressed air is fed to the pressure pad 4 by opening a switch valve 11, and the retreated ram 2, the die 6 taken out from the container 4, container 5 and pressure pad 4 are cleaned. In this way, the producing cycle time of the extrusion press 1 is shortened.

139. 发明专利

JPS6250238B2 失效
公开(公告)号：JPS6250238B2
公开(公告)日：1987-10-23
申请号：JP2047182
申请日：1982-02-10
申请人： KOBE STEEL LTD
发明人： YAMAMOTO HIDEKI , KONISHI SUSUMU , SAIJO KATSUMI
IPC分类号： B21C27/04 , B23K35/40

140. 发明专利

JPS6114891B2 JPS6114891B2 - 失效
公开(公告)号：JPS6114891B2
公开(公告)日：1986-04-21
申请号：JP13556477
申请日：1977-11-11
申请人： Alusuisse
发明人： ARUFURETSUDO WAGUNAA , ADORUFU AMESU , KAARU GURAFU
IPC分类号： B21C23/00 , B21C23/01 , B21C23/21 , B21C27/04 , B21C43/00 , B23D79/12
CPC分类号： B23D79/12 , B21C23/00 , B21C23/01 , B21C23/218 , B21C27/04 , B21C29/006 , B21C43/00 , Y10T409/50164

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