JPS5736015A - Manufacture metallic pipe having truly round inner diameter and outer diameter in optional shape except true round by drawing process - Google Patents

Manufacture metallic pipe having truly round inner diameter and outer diameter in optional shape except true round by drawing process

Info

Publication number
JPS5736015A
JPS5736015A JP11217880A JP11217880A JPS5736015A JP S5736015 A JPS5736015 A JP S5736015A JP 11217880 A JP11217880 A JP 11217880A JP 11217880 A JP11217880 A JP 11217880A JP S5736015 A JPS5736015 A JP S5736015A
Authority
JP
Japan
Prior art keywords
round
outer diameter
truly
inner diameter
pipe blank
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.)
Pending
Application number
JP11217880A
Other languages
Japanese (ja)
Inventor
Tamio Ishida
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP11217880A priority Critical patent/JPS5736015A/en
Publication of JPS5736015A publication Critical patent/JPS5736015A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To manufacture a metallic pipe having a truly round inner diameter and an optionally shaped outer diameter, by drawing a round pipe blank with an external die having an optionally shaped inner surface and a round column shaped internal die.
CONSTITUTION: The inner surface of an external die 1 is formed into an optional shape except a true round; an internal die 2 is formed into a round column shape and is attached to the tip of a mandrel 3. A round pipe blank 4 is chucked by a carriage 5 which is then withdrawn so as to pull the pipe blank 4 in the drawing direction; hereby, the outer diameter, that is the outer surface, of the pipe blank 4 is formed into such a desired shape as a hexagon, an octagon, etc., for example, by the inner sueface of the external die 1; at the same time, the inner diameter of the pipe blank 4 is always kept at a truly round shape by the round column shaped internal die 2; the desired metallic pipe is thus manufactured by the drawing process.
COPYRIGHT: (C)1982,JPO&Japio
JP11217880A 1980-08-14 1980-08-14 Manufacture metallic pipe having truly round inner diameter and outer diameter in optional shape except true round by drawing process Pending JPS5736015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11217880A JPS5736015A (en) 1980-08-14 1980-08-14 Manufacture metallic pipe having truly round inner diameter and outer diameter in optional shape except true round by drawing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11217880A JPS5736015A (en) 1980-08-14 1980-08-14 Manufacture metallic pipe having truly round inner diameter and outer diameter in optional shape except true round by drawing process

Publications (1)

Publication Number Publication Date
JPS5736015A true JPS5736015A (en) 1982-02-26

Family

ID=14580198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11217880A Pending JPS5736015A (en) 1980-08-14 1980-08-14 Manufacture metallic pipe having truly round inner diameter and outer diameter in optional shape except true round by drawing process

Country Status (1)

Country Link
JP (1) JPS5736015A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141906A (en) * 1990-06-29 1992-08-25 Toyota Jidosha Kabushiki Kaisha Catalyst for purifying exhaust gas
US7824474B2 (en) 2005-09-09 2010-11-02 Taiyo Nippon Sanso Corporation Molded Cu-ZSM5 zeolite adsorbent, method of activating the same, temperature swing adsorption apparatus, and method of purifying gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141906A (en) * 1990-06-29 1992-08-25 Toyota Jidosha Kabushiki Kaisha Catalyst for purifying exhaust gas
US7824474B2 (en) 2005-09-09 2010-11-02 Taiyo Nippon Sanso Corporation Molded Cu-ZSM5 zeolite adsorbent, method of activating the same, temperature swing adsorption apparatus, and method of purifying gas

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