JPS642734A - Production of joint hardware for deformed steel bar and its device - Google Patents
Production of joint hardware for deformed steel bar and its deviceInfo
- Publication number
- JPS642734A JPS642734A JP62155936A JP15593687A JPS642734A JP S642734 A JPS642734 A JP S642734A JP 62155936 A JP62155936 A JP 62155936A JP 15593687 A JP15593687 A JP 15593687A JP S642734 A JPS642734 A JP S642734A
- Authority
- JP
- Japan
- Prior art keywords
- tubular body
- shape
- joint hardware
- parts
- closed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To easily and surely form the projecting part for increasing the adhesion force of a packing material by inserting the tubular body for a joint hardware to the shape that plural projecting bar parts are formed on the inner face and pouring a super high pressure water inside the tubular body.
CONSTITUTION: The tubular body 5 for a joint hardware is inserted into the inner part of a shape 4, urethane is expanded by compressing the urethane of both closed parts 6, 6 and both end parts of the tubular body 5 are closed. When an extra high pressure water is poured into a feeding hole 10 from a center hole jack 14 side, it is poured between both closed parts 6, 6 inside the tubular body 5 from each pouring hole 7. And when the water pressure inside the tubular body 5 is increased, the tubular body 5 is pressed and deformed along the shape of the shape 4. The tubular body 5 is thus made a joint hardware with the plural projecting part for increasing the adhesion force of a packing material corresponding to the projecting bar part 2 of the shape 4 being formed on its inner face.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-155936A JPH012734A (en) | 1987-06-23 | Manufacturing method and device for joint metal fittings for deformed steel bars |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62-155936A JPH012734A (en) | 1987-06-23 | Manufacturing method and device for joint metal fittings for deformed steel bars |
Publications (3)
Publication Number | Publication Date |
---|---|
JPS642734A true JPS642734A (en) | 1989-01-06 |
JPH012734A JPH012734A (en) | 1989-01-06 |
JPH0248332B2 JPH0248332B2 (en) | 1990-10-24 |
Family
ID=
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011000617A (en) * | 2009-06-19 | 2011-01-06 | Nippon Steel Corp | Device and method for hot press-forming metallic pipe |
JP2011020137A (en) * | 2009-07-15 | 2011-02-03 | Nippon Steel Corp | Hot forming apparatus for metal tube and hot forming method using the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4834925U (en) * | 1971-08-26 | 1973-04-26 | ||
JPS4841428U (en) * | 1971-09-20 | 1973-05-26 |
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4834925U (en) * | 1971-08-26 | 1973-04-26 | ||
JPS4841428U (en) * | 1971-09-20 | 1973-05-26 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011000617A (en) * | 2009-06-19 | 2011-01-06 | Nippon Steel Corp | Device and method for hot press-forming metallic pipe |
JP2011020137A (en) * | 2009-07-15 | 2011-02-03 | Nippon Steel Corp | Hot forming apparatus for metal tube and hot forming method using the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0248332B2 (en) | 1990-10-24 |
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