JPS6471520A - Roll forming apparatus for welded pipe - Google Patents

Roll forming apparatus for welded pipe

Info

Publication number
JPS6471520A
JPS6471520A JP22708287A JP22708287A JPS6471520A JP S6471520 A JPS6471520 A JP S6471520A JP 22708287 A JP22708287 A JP 22708287A JP 22708287 A JP22708287 A JP 22708287A JP S6471520 A JPS6471520 A JP S6471520A
Authority
JP
Japan
Prior art keywords
rolling
rolls
longitudinal
forming apparatus
downs
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
JP22708287A
Other languages
Japanese (ja)
Inventor
Takeo Yamada
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
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP22708287A priority Critical patent/JPS6471520A/en
Publication of JPS6471520A publication Critical patent/JPS6471520A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To very easily prevent the occurrence of rolling with a simple constitution by disposing one or more longitudinal rolls slant obliquely in the direction of material advancing and by making it to a driving type. CONSTITUTION:A forming stand 10 is constituted of a brake-downs 12 and fin passes 13, and horizontal rolls 14, 16, 18, 20 and longitudinal rolls 22, 24, 26, 28 are provided on the brake-downs 12. Then, the longitudinal roll 28 on the final stage is disposed obliquely in the material advancing direction, and made into the driving type. When an inclined rolling is performed by using such rolls, a frictional force F is operated on the rolling part, and by its downward component of the force Fy, a restoring force is generated on the rolling part to eliminate the rolling action. Therefore, the occurrence of the rolling is very easily prevented with the simple constitution.
JP22708287A 1987-09-10 1987-09-10 Roll forming apparatus for welded pipe Pending JPS6471520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22708287A JPS6471520A (en) 1987-09-10 1987-09-10 Roll forming apparatus for welded pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22708287A JPS6471520A (en) 1987-09-10 1987-09-10 Roll forming apparatus for welded pipe

Publications (1)

Publication Number Publication Date
JPS6471520A true JPS6471520A (en) 1989-03-16

Family

ID=16855226

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22708287A Pending JPS6471520A (en) 1987-09-10 1987-09-10 Roll forming apparatus for welded pipe

Country Status (1)

Country Link
JP (1) JPS6471520A (en)

Similar Documents

Publication Publication Date Title
MX9702106A (en) Method and apparatus for packaging compressible insulation material.
JPS56141211A (en) Accelerated accumulate chain conveyer
JPS6471520A (en) Roll forming apparatus for welded pipe
KR830009811A (en) Rolling mill
JPS57154324A (en) Pinch roll device for vertical laying head
JPS53127353A (en) Method and apparatus for rolling by multistage rolling mill
JPS57202911A (en) Method and device for roll shifting of rolling mill
JPS55139102A (en) Rolling method for strip
AU4003193A (en) Method and apparatus for structuring tobacco materials
JPS5354391A (en) Method for processing double row conical roller bearing
JPS57175005A (en) Cold rolling method in multistages rolling mill
SE8103526L (en) PROCEDURE AND DEVICE FOR HEAT COLLECTION
JPS5536105A (en) Rolled material forcing machine
JPS5354640A (en) Machining for double row cone roller bearing
EP0099737A3 (en) Forming helical grooves in tubes
ES482622A1 (en) An improved Device for Guiding Pairs of Rolled Members to be Connected by Welding
JPS53146958A (en) Rolling method of steel material at high area reduction
JPS57171506A (en) Mandrel rolling mill and its rolling method
JPS5732803A (en) Rolling mill for shaft material
JPS5354637A (en) Cylinder roller bearing assembly method
JPS5210986A (en) Method of shearing waste steel member having large diameter
JPS5420942A (en) Controlling method for tension in tandem rolling mill
JPS5217291A (en) Process and equipment for cutting the work roll of a roller
JPS5354392A (en) Method for processing double row roller bearing
JPS5533804A (en) Method and apparatus for roll forming of bellows