JPS56139282A - Surface defect removing pretreatment of billet - Google Patents

Surface defect removing pretreatment of billet

Info

Publication number
JPS56139282A
JPS56139282A JP4182280A JP4182280A JPS56139282A JP S56139282 A JPS56139282 A JP S56139282A JP 4182280 A JP4182280 A JP 4182280A JP 4182280 A JP4182280 A JP 4182280A JP S56139282 A JPS56139282 A JP S56139282A
Authority
JP
Japan
Prior art keywords
billet
scarfing
surface defect
defect removing
groove
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
JP4182280A
Other languages
Japanese (ja)
Inventor
Satoru Yoshioka
Masashi Okai
Tsuneo Suzuki
Joji Aoki
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP4182280A priority Critical patent/JPS56139282A/en
Publication of JPS56139282A publication Critical patent/JPS56139282A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding In General (AREA)

Abstract

PURPOSE: To extremely easily perform surface defect removing pretreatment of billets by performing burr through automatically forming a scarfing groove at the end part of hot billet.
CONSTITUTION: Hot billet 5 from the cutter is sent to the fixed location of table roller 11. The scarfing groove 9 is formed on shear drop surface 6 of billet 5 with torch 12 of the scarfing machine 4, and the marginal parts of both sides of this scarfing groove 9 become the burrs 10. This work is extremely easy and the working efficiency is improved considerably.
COPYRIGHT: (C)1981,JPO&Japio
JP4182280A 1980-03-31 1980-03-31 Surface defect removing pretreatment of billet Pending JPS56139282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4182280A JPS56139282A (en) 1980-03-31 1980-03-31 Surface defect removing pretreatment of billet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4182280A JPS56139282A (en) 1980-03-31 1980-03-31 Surface defect removing pretreatment of billet

Publications (1)

Publication Number Publication Date
JPS56139282A true JPS56139282A (en) 1981-10-30

Family

ID=12618976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4182280A Pending JPS56139282A (en) 1980-03-31 1980-03-31 Surface defect removing pretreatment of billet

Country Status (1)

Country Link
JP (1) JPS56139282A (en)

Similar Documents

Publication Publication Date Title
JPS57144629A (en) Wire cut discharge working method
JPS56139282A (en) Surface defect removing pretreatment of billet
JPS5336792A (en) Machine tool
JPS57154359A (en) Method for deburring of continuously cast ingot
JPS547689A (en) Sawing device
JPS56105831A (en) Manufacture of punch for use of press work
JPS563102A (en) Crankshaft machining machine
JPS54106056A (en) Equipment for blank out for steel plate
JPS5234490A (en) Method of shearing steel band running in line
JPS5617129A (en) Method and apparatus for drawing and cutting pipe
JPS5429184A (en) Device for cutting pipe end
JPS5226093A (en) Welding bead face cutting device
JPS51113289A (en) Device for cutting the end surface of steel piece
JPS53113389A (en) Apparatus for trimming welded joint
JPS5756193A (en) Welding method for tube and tube plate
JPS53115982A (en) Method of forming fluid passage in hydraulic tools or the like
Jakubcik Contribution to thermal cutting of metals by oxygen-petrol flame
JPS55164407A (en) Machining crank shaft in crank pin millor
JPS52112106A (en) Lubricating method of fluid machine
JPS51113280A (en) Method of cutting metal plate
JPS5557355A (en) Terminal truck for mold making machine
JPS5469552A (en) Brazing method
JPS5234491A (en) Method of cutting steel pipe
JPS56102415A (en) Cutting method of pipe and apparatus thereof
Krajny et al. The Utilization of an Abrasive Water Jet for the Cutting Up of Steel Tubes