专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP3239833B2 失效
公开(公告)号：JP3239833B2
公开(公告)日：2001-12-17
申请号：JP4404198
申请日：1998-02-25
IPC分类号： B21C1/22 , B21C3/06 , B21C37/15 , F28D7/10 , F28F1/06

2. 发明专利

JPH08108211A DIAMOND DIE FOR DRAWING STEEL 失效
公开(公告)号：JPH08108211A
公开(公告)日：1996-04-30
申请号：JP26802994
申请日：1994-10-07
申请人： TOKYO SEIKO CO LTD
发明人： KUSUDA MASAHIRO
IPC分类号： B21C1/00 , B21C3/02 , B21C3/06
摘要： PURPOSE: To improve the drawing performance of a steel wire, also working life of a die, productivity and quality of a drawn wire by making the drawing part of die, inlet part of die and outlet part of die of a diamond die into a suitable structure for drawing the steel wire and raising the performance of wire drawing, introducing property of a lubricating liquid and dischargeability of the lubricating liquid and transformed matter. CONSTITUTION: In the diamond die 10 for drawing the steel wire (a), the reduction angle 3γ in the wire drawing parts 3, 4 of die are formed at 11π2 deg. and also the ratio L/D of the bearing length L in the wire drawing parts 3, 4 of die to the bearing diameter D is formed into 0.4±1. In this diamond die 10, the bell angle 1α is formed at 90±10 deg. and also the approach angle 2β in the inlet parts 1, 2 of die is formed at 45±5 deg.. Further, the back angle 5θ in the outlet parts 5, 6 of die is formed at 30±5 deg. and also the back relief angle 6ψ in the outlet parts 5, 6 of die is formed at 90±10 deg..

3. 发明专利

JPH0724858B2 失效
公开(公告)号：JPH0724858B2
公开(公告)日：1995-03-22
申请号：JP23459488
申请日：1988-09-19
IPC分类号： B21C37/15 , B21C3/06 , B21C37/30

4. 实用新型

JPS61133210U 失效
公开(公告)号：JPS61133210U
公开(公告)日：1986-08-20
申请号：JP1312985
申请日：1985-01-31
IPC分类号： B21C3/02 , B21C3/06 , B21C3/12

5. 发明专利

JPS6082218A FORMING DEVICE OF FINNED TUBE 失效
公开(公告)号：JPS6082218A
公开(公告)日：1985-05-10
申请号：JP18516483
申请日：1983-10-05
申请人： MITSUBISHI HEAVY IND LTD
发明人： SUGINO MOTOHIKO
IPC分类号： B21C3/02 , B21C3/06 , B21C23/10 , B21C25/08 , B21C37/20
摘要： PURPOSE:To form fins in the desired position of a tube by juxtaposing a die for forming a finned part and a die for forming a non-finned part in an extruding direction. CONSTITUTION:A die 3 for forming a finned part and a die 4' for forming a non-finned part on the rear side of an extruding direction are dividedly retreated and a die 4 for forming a non-finned part on the front side of the extruding direction is joined thereto. A mandrel 6 is inserted into a blank material and the blank material is pushed in the arrow direction to form the cylindrical non- finned part at the front end of a tube 1. The die 4 is then retreated and the die 3 is joined thereto. The finned part projected with fins 2 on the outside circumference of the tube 1 is formed by the die 3 in succession to the non-finned part. The die 3 is finally retreated and the die 4' for forming the non-finned part on the rear side is joined thereto to form the cylindrical non-finned part at the rear end of the tube 1. The finned tube which is not projected with the fins 2 at both ends of the tube 1 is thus formed.

6. 实用新型

JPS56165609U 失效
公开(公告)号：JPS56165609U
公开(公告)日：1981-12-08
申请号：JP6578880
申请日：1980-05-13
IPC分类号： B29C55/00 , B21C3/02 , B21C3/06 , B29C33/42 , B29C45/00 , B29C55/30 , B29C17/02

7. 发明专利

JPS54500073A 失效
公开(公告)号：JPS54500073A
公开(公告)日：1979-11-29
申请号：JP50005378
申请日：1978-10-13
IPC分类号： B21C3/02 , B21C3/06 , B21C3/18 , B21K5/20 , B22F7/00 , B30B11/00

8. 发明专利

JPS5199656A 失效
公开(公告)号：JPS5199656A
公开(公告)日：1976-09-02
申请号：JP2470775
申请日：1975-02-28
申请人： FURUKAWA ELECTRIC CO LTD , FURUKAWA METALS CO
发明人： NAKAJIMA KATSUHISA , INOE SADAO
IPC分类号： B21C3/02 , B21B1/16 , B21C3/06 , B21C25/02 , B21F7/00

9. 发明专利

JPS5199655A 失效
公开(公告)号：JPS5199655A
公开(公告)日：1976-09-02
申请号：JP2470575
申请日：1975-02-28
申请人： FURUKAWA ELECTRIC CO LTD , FURUKAWA METALS CO
发明人： NAKAJIMA KATSUHISA
IPC分类号： B21C3/02 , B21B1/16 , B21C3/06 , B21C25/02 , B21F7/00

10. 发明专利

JP2012076129A Method for manufacturing metallic double wall pipe 有权
标题翻译：制造金属双壁管的方法
公开(公告)号：JP2012076129A
公开(公告)日：2012-04-19
申请号：JP2010224692
申请日：2010-10-04
申请人： Sumitomo Metal Ind Ltd , 住友金属工業株式会社
发明人： NAKAJIMA TAKASHI , HANADA TAKUYA , OKUI TATSUYA
IPC分类号： B21C37/06 , B21C3/06
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a metallic double wall pipe, in which surface pressure can be generated on the interface between an internal pipe and an external pipe of the metallic double wall pipe obtained.SOLUTION: There is provided a method for manufacturing a metallic double wall pipe 1 in which the external surface of the internal pipe 12 is in contact with the internal surface of the external pipe 11 by cold drawing using a tapered die 2 as a working die. In the manufacturing method, the internal pipe 12 is processed by polishing its external surface in advance so that an arithmetic average roughness Ra (Ra1) (JIS B 0601) of the external surface is controlled to 2.3 to 5.0 μm and then drawn without using a plug. The external pipe 11 used is processed by polishing its internal surface in advance so that the internal surface has an arithmetic average roughness Ra (Ra2) of ≤5.0 μm, and an f value defined by equation (1):f=(Ra1+1)×(Ra2+1) is adjusted to ≥6.
摘要翻译：要解决的问题：提供一种金属双壁管的制造方法，其中在所获得的金属双壁管的内管和外管之间的界面上可能产生表面压力。解决方案：提供了一种用于制造金属双壁管1的方法，其中内管12的外表面通过使用锥形模具2作为冷拉制与外管11的内表面接触工作死亡在制造方法中，通过预先对其外表面进行抛光处理内管12，使外表面的算术平均粗糙度Ra（Ra1）（JISB0601）控制在2.3〜5.0μm，然后在不使用插头。所使用的外管11通过预先对其内表面进行抛光加工，使得内表面的算术平均粗糙度Ra（Ra2）≤5.0μm，以及由式（1）定义的f值：f =（Ra1 + 1 ）×（Ra2 + 1）调整为≥6。版权所有（C）2012，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式