JPS6475171A - Scarfer - Google Patents
ScarferInfo
- Publication number
- JPS6475171A JPS6475171A JP23397687A JP23397687A JPS6475171A JP S6475171 A JPS6475171 A JP S6475171A JP 23397687 A JP23397687 A JP 23397687A JP 23397687 A JP23397687 A JP 23397687A JP S6475171 A JPS6475171 A JP S6475171A
- Authority
- JP
- Japan
- Prior art keywords
- billet
- scarved
- length
- scarfing
- control device
- 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
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE:To check the generation of a roll over and to reduce the repairing work of the following stage by detecting the length of a billet from the surface side of the billet subjected to scarfing and actuating a gas injection nozzle at the time when an unscarfing part becomes in the specified length from the rear end of the billet. CONSTITUTION:The end part 16 of a billet 10 is preheated by jetting a coke gas flame from scarfing nozzles 14, 15 and the surface 41 thereof is scarved by transferring the billet 10 as well as increasing the oxygen gas pressure. The full length L of the billet 10 is measured by a 1st measuring roll 19. When the surface 41 and side face 42 are scarved by the scarfing nozzle 14, the distance L1 of the billet 10 tip and a 2nd measuring roll 20 is continuously measured and the signal thereof is inputted to a control device 40. The length L-L1-L2 of the rear end of the billet 10 and a scarfer main body 5 is continuously operated by the control device 40. At the time when the result thereof becomes equal to the set value, an inert gas is injected from a gas injection nozzle 35 to move the scarved melted body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23397687A JPS6475171A (en) | 1987-09-18 | 1987-09-18 | Scarfer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23397687A JPS6475171A (en) | 1987-09-18 | 1987-09-18 | Scarfer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6475171A true JPS6475171A (en) | 1989-03-20 |
Family
ID=16963586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23397687A Pending JPS6475171A (en) | 1987-09-18 | 1987-09-18 | Scarfer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6475171A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008274716A (en) * | 2007-05-07 | 2008-11-13 | Daikin Ind Ltd | Operating device of hybrid shovel |
JP2009022961A (en) * | 2007-07-17 | 2009-02-05 | Sumitomo Metal Ind Ltd | Scarfing device and slag removing method |
CN102223981A (en) * | 2008-11-25 | 2011-10-19 | 新日本制铁株式会社 | Apparatus for scarfing steel bar and method for scarfing steel bar |
-
1987
- 1987-09-18 JP JP23397687A patent/JPS6475171A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008274716A (en) * | 2007-05-07 | 2008-11-13 | Daikin Ind Ltd | Operating device of hybrid shovel |
JP2009022961A (en) * | 2007-07-17 | 2009-02-05 | Sumitomo Metal Ind Ltd | Scarfing device and slag removing method |
CN102223981A (en) * | 2008-11-25 | 2011-10-19 | 新日本制铁株式会社 | Apparatus for scarfing steel bar and method for scarfing steel bar |
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