JPS5728623A - Method for forming elbow with straight pipe in one body - Google Patents

Method for forming elbow with straight pipe in one body

Info

Publication number
JPS5728623A
JPS5728623A JP10353980A JP10353980A JPS5728623A JP S5728623 A JPS5728623 A JP S5728623A JP 10353980 A JP10353980 A JP 10353980A JP 10353980 A JP10353980 A JP 10353980A JP S5728623 A JPS5728623 A JP S5728623A
Authority
JP
Japan
Prior art keywords
pipe
elbow
straight pipe
straight
angle
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
Application number
JP10353980A
Other languages
Japanese (ja)
Other versions
JPS602129B2 (en
Inventor
Takeshi Uchinami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP10353980A priority Critical patent/JPS602129B2/en
Publication of JPS5728623A publication Critical patent/JPS5728623A/en
Publication of JPS602129B2 publication Critical patent/JPS602129B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

PURPOSE: To prevent a formed pipe from generating corrugated and elliptial shapes of the border between bent part and straight part, and to form the titled product of good quality in one body by a difference of bent angle at the pipe shaped part of the upper and lower dies which forms an elbow with straight pipe.
CONSTITUTION: A pipe material 10 is placed on a lower die B, and an upper die A is lowered by a press upon it to form an elbow 10a with straight pipe. As the pipe shaped parts 1 are provided to the upper and lower dies A, B, a sideward expanding of the pipe material 10 is prevented at the time of its bending. And as the angle θ2 of the lower die B is smaller than the angle θ1 of the upper die A by 3W7°, some allowance 11 between underside of the elbow 10a with a straight pipe and a pipe shaped part of the lower die B does not restrict the distortion of underside of the elbow 10a with straight pipe thus enabling it to prevent from generating elliptical shape at the section of the border of the straight pipe and further the corrugated shape of upside of the elbow.
COPYRIGHT: (C)1982,JPO&Japio
JP10353980A 1980-07-30 1980-07-30 Integral molding method for straight pipe elbow Expired JPS602129B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10353980A JPS602129B2 (en) 1980-07-30 1980-07-30 Integral molding method for straight pipe elbow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10353980A JPS602129B2 (en) 1980-07-30 1980-07-30 Integral molding method for straight pipe elbow

Publications (2)

Publication Number Publication Date
JPS5728623A true JPS5728623A (en) 1982-02-16
JPS602129B2 JPS602129B2 (en) 1985-01-19

Family

ID=14356640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10353980A Expired JPS602129B2 (en) 1980-07-30 1980-07-30 Integral molding method for straight pipe elbow

Country Status (1)

Country Link
JP (1) JPS602129B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62110857U (en) * 1985-12-28 1987-07-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62110857U (en) * 1985-12-28 1987-07-15
JPH0448926Y2 (en) * 1985-12-28 1992-11-18

Also Published As

Publication number Publication date
JPS602129B2 (en) 1985-01-19

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