JPS55103206A - Manufacture of seamless metallic pipe - Google Patents

Manufacture of seamless metallic pipe

Info

Publication number
JPS55103206A
JPS55103206A JP908179A JP908179A JPS55103206A JP S55103206 A JPS55103206 A JP S55103206A JP 908179 A JP908179 A JP 908179A JP 908179 A JP908179 A JP 908179A JP S55103206 A JPS55103206 A JP S55103206A
Authority
JP
Japan
Prior art keywords
mandrel
mill
blank
pipe
rolling
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
JP908179A
Other languages
Japanese (ja)
Other versions
JPS5937685B2 (en
Inventor
Seishiro Yoshihara
Hirokichi Higashiyama
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP908179A priority Critical patent/JPS5937685B2/en
Priority to US06/105,746 priority patent/US4318294A/en
Priority to FR7931939A priority patent/FR2445187A1/en
Priority to DE19792952647 priority patent/DE2952647A1/en
Priority to IT28473/79A priority patent/IT1127783B/en
Publication of JPS55103206A publication Critical patent/JPS55103206A/en
Publication of JPS5937685B2 publication Critical patent/JPS5937685B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Abstract

PURPOSE: To make few the variety of mandrel, and to manufacture the product of good quality at high rolling efficiency, by rolling the cylindrical blank, being inserted with the mandrel to the bottom, placing the bottom is front, with the continuous rolling mill and next the cross herical roll mill, and after that, by recycling the mandrel being pulled away, for reuse.
CONSTITUTION: The mandrel M2 is inserted into the bottomed cylindrical blank P to the bottom, and the mandrel M2 is forced into the continuous rolling mill 4 placing the bottom of the blank in front; hereupon, the mill 4 possesses plural units of coupled plural rolls 15 forming the caliber arranged in the direction of the pass line. The rolling work is given to the blank at least until the end of the mandrel M2 passes the final caliber; hereby, the transverse section of the pipe P is reduced over the entire length. Next, as the mandrel M2 is being inserted, the blank P is pushed into the cross helical roll 17 mill 15, placing the pipe bottom in front. After the rolling work, the mandrel M2 is pulled away, and is recycled for reuse to the continuous rolling mill 4 through the support bed 8c. After reheating the pipe P to a suitable temperature, the pipe P is finish rolled by the sizer, etc. Meantime, the bottomed cylindrical blank formed from the polygonally sectioned bloom is used in this method.
COPYRIGHT: (C)1980,JPO&Japio
JP908179A 1978-12-29 1979-01-31 Manufacturing method of seamless metal pipe Expired JPS5937685B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP908179A JPS5937685B2 (en) 1979-01-31 1979-01-31 Manufacturing method of seamless metal pipe
US06/105,746 US4318294A (en) 1978-12-29 1979-12-19 Method of manufacturing seamless metal pipes and tubes
FR7931939A FR2445187A1 (en) 1978-12-29 1979-12-28 PROCESS FOR THE MANUFACTURE OF SOLDER-FREE METAL PIPES AND TUBES
DE19792952647 DE2952647A1 (en) 1978-12-29 1979-12-28 METHOD FOR PRODUCING SEAMLESS METAL TUBES
IT28473/79A IT1127783B (en) 1978-12-29 1979-12-31 METHOD FOR THE MANUFACTURE OF SEAMLESS METAL PIPES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP908179A JPS5937685B2 (en) 1979-01-31 1979-01-31 Manufacturing method of seamless metal pipe

Publications (2)

Publication Number Publication Date
JPS55103206A true JPS55103206A (en) 1980-08-07
JPS5937685B2 JPS5937685B2 (en) 1984-09-11

Family

ID=11710659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP908179A Expired JPS5937685B2 (en) 1978-12-29 1979-01-31 Manufacturing method of seamless metal pipe

Country Status (1)

Country Link
JP (1) JPS5937685B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130707A (en) * 1981-02-03 1982-08-13 Sumitomo Metal Ind Ltd Method and device for producing seamless pipe
JPS58119408A (en) * 1982-01-05 1983-07-15 Kawasaki Steel Corp Elongating method of seamless pipe
JPS6092007A (en) * 1983-10-24 1985-05-23 Nippon Steel Corp Rolling method for seamless pipe

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130707A (en) * 1981-02-03 1982-08-13 Sumitomo Metal Ind Ltd Method and device for producing seamless pipe
JPS58119408A (en) * 1982-01-05 1983-07-15 Kawasaki Steel Corp Elongating method of seamless pipe
JPS6353883B2 (en) * 1982-01-05 1988-10-26 Kawasaki Steel Co
JPS6092007A (en) * 1983-10-24 1985-05-23 Nippon Steel Corp Rolling method for seamless pipe

Also Published As

Publication number Publication date
JPS5937685B2 (en) 1984-09-11

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