JPS57118863A - Gas cutting method and nozzle for gas cutting - Google Patents
Gas cutting method and nozzle for gas cuttingInfo
- Publication number
- JPS57118863A JPS57118863A JP560381A JP560381A JPS57118863A JP S57118863 A JPS57118863 A JP S57118863A JP 560381 A JP560381 A JP 560381A JP 560381 A JP560381 A JP 560381A JP S57118863 A JPS57118863 A JP S57118863A
- Authority
- JP
- Japan
- Prior art keywords
- preheating
- groups
- cutting
- hole
- gaseous mixture
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/52—Nozzles for torches; for blow-pipes
- F23D14/54—Nozzles for torches; for blow-pipes for cutting or welding metal
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
PURPOSE:To save the amt. of a gaseous mixture for preheating by providing plural groups of gaseous mixture holes for preheating of a nozzle and selectively using the gas hole groups in accordance with need. CONSTITUTION:Gaseous mixture hole groups 11, 12 for primary preheating and secondaty preheating are provided respectively on the outside circumference of a cutting oxygen hole 10 of a nozzle concentrically in order from the inner side. When a large amt. of a gaseous mixture for pregeating is necessary, for example, in the case of groove cutting, the work is preheated with the groups 11, 12, and even after the start of cutting with the hole 10, the preheating flames of the groups 11, 12 are continued in succession. On the other hand, if te gaseous mixtre for preheating is required in a small amt., for example, in the case of I type cutting, the work is preheated for a constant time with the groups 11, 12, after which the preheating flame from the group 12 is put out upon starting of cutting with the hole 10, and the cutting is accomplished only by the preheating flame from the group 11.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP560381A JPS57118863A (en) | 1981-01-16 | 1981-01-16 | Gas cutting method and nozzle for gas cutting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP560381A JPS57118863A (en) | 1981-01-16 | 1981-01-16 | Gas cutting method and nozzle for gas cutting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57118863A true JPS57118863A (en) | 1982-07-23 |
Family
ID=11615787
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP560381A Pending JPS57118863A (en) | 1981-01-16 | 1981-01-16 | Gas cutting method and nozzle for gas cutting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57118863A (en) |
-
1981
- 1981-01-16 JP JP560381A patent/JPS57118863A/en active Pending
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