JPS5573475A - Broad width scarfing method of metal surface - Google Patents
Broad width scarfing method of metal surfaceInfo
- Publication number
- JPS5573475A JPS5573475A JP14738978A JP14738978A JPS5573475A JP S5573475 A JPS5573475 A JP S5573475A JP 14738978 A JP14738978 A JP 14738978A JP 14738978 A JP14738978 A JP 14738978A JP S5573475 A JPS5573475 A JP S5573475A
- Authority
- JP
- Japan
- Prior art keywords
- scarfing
- nozzle
- broad width
- commutator
- electrode
- 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
Abstract
PURPOSE: To prevent occurrence of scarfing defect and undulations on the metal surface after scarfing, by providing a commutator between nozzle and electrode and making uniform the distribution of plasma gas flow rate.
CONSTITUTION: A commutator 9 made of insulating material is provided in the space between a nozzle 4 and a broad width electrode 1. When scarfing, a pilot arc is discharged in the space between the board width electrode 1 and nozzle 4 by means of high frequency generating circuit 17, and a plasma arc is ignited between the broad width electrode 1 and metal body 2 by means of high output DC power supply 16. The plasma gas being supplied is controlled by the commutator so that the flow rate distribution may be uniform, and is injected from the end of the nozzle 4. Thus, while scarfing the surface of metal body 2, a fluid for blow- off is injected from a fluid injection nozzle 18 to blow off the molten metal at the same time. By passing a current to an electromagnet 14 from an AC power supply 15 to create an alternating magnetic field, which causes to move a plasma arc column 19 to move reciprocally or the torch 3 to move, thereby scarfing the surface of the metal body 2 in a broad width.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14738978A JPS5573475A (en) | 1978-11-28 | 1978-11-28 | Broad width scarfing method of metal surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14738978A JPS5573475A (en) | 1978-11-28 | 1978-11-28 | Broad width scarfing method of metal surface |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5573475A true JPS5573475A (en) | 1980-06-03 |
Family
ID=15429147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14738978A Pending JPS5573475A (en) | 1978-11-28 | 1978-11-28 | Broad width scarfing method of metal surface |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5573475A (en) |
-
1978
- 1978-11-28 JP JP14738978A patent/JPS5573475A/en active Pending
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