1. THE OXYACETYLENE TORCH
AENT2803
ASSIGNMENT #10
DR.CURTIS BORNE
11/18/2018
FORT VALLEY STATE UNIVERSITY

2. #1 PART I CUTTING TORCH RIG
LABELLING O/A EQUIPMENT
1. WORKING PRESSURE GAUGE
2. CYLINDER PRESSURE GAUGE
3. OXYGEN REGULATOR 1 2 1 2 3 O x y g e n
gas
11/18/2018
FORT VALLEY STATE UNIVERSITY

3. LABELLING PARTS CONTINUED
4. ACETYLENE REGULATOR
5. HOSES
6. TIP
7. TORCH
8. SPARKLIGHTER
9. WRENCH 3 O x y g e n
gas 5
11/18/2018
FORT VALLEY STATE UNIVERSITY

4. FORT VALLEY STATE UNIVERSITY
2. PRESSURE READINGS
HIGH PRESSURE IN CYLINDER
CYLINGER PRESSURE
LOW PRESSURE IN TORCH
WORKING PRESSURE
11/18/2018
FORT VALLEY STATE UNIVERSITY

5. FORT VALLEY STATE UNIVERSITY
TORCH HOSES
3. OXYGEN HOSE IS GREEN
4. ACETYLENE HOSE IS RED
11/18/2018
FORT VALLEY STATE UNIVERSITY

6. 5. CUTTING PRESSURE SETTING
RATIO OF 2.5 PSI OF OXYGEN
TO 1 PSI OF ACETYLENE
NEVER OVER 15 PSI OF ACETYLENE
THICKNESS OF METAL AND TIP SIZE DETERMINES PRESSURE
11/18/2018

7. 5 PSI OF ACETYLENE AND 12.5 PSI OXYGEN
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8. OXYACETYLENE WELDING USES LOWER PRESSURE 3 PSI ACETYLENE
7.5 PSI OXYGEN
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9. 6. OPEN OXYGEN CYLINDER
OPEN ALLTHE WAY
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10. 7. OPEN ACETYLENE CYLINDER
NOT MORE THAN1-1/2 TURNS
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11. 8. GAUGES
ON REGULATORS
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12. 9. MANIFOLD TORCH SYSTEM AT FVSU CYLINDERS OUTSIDE
GASES PIPED INTO MULTIPLE STATIONS
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13. 10. OXYGEN CYLINDERS
RIGHT HAND CONNECTOR THREAD
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14. 11. OXYACETYLENE GOGGLE #6 FILTER LENS USED FOR TORCH WORK
DON’T BE STUBBURN REMEMBER TO WEAR GOGGLES
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15. 12. CHECKING FOR TORCH LEAKS
USE SOAP AND WATER
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16. 13. HOSE CONNECTIONS
SHOULD BE HAND TIGHT
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17. 14. PARTS OF CUTTING TORCH 1. CUTTING TIP 2. MIXING CHAMBER6 5 3
1. CUTTING TIP
2. MIXING CHAMBER
3. TORCH HEAD
4. OXYGEN SET AT TWO PLACES
5. ACETYLENE AT ONE PLACE
6. OXYGEN LEVER 2 1 4
11/18/2018

18. SETTING CUTTING FLAME WEAR GLOVES & #6 LENS GOGGLES
HOLD TORCH IN BOTH HANDS
USE NEUTRAL FLAME
TOO MUCH ACETYLENE SENDS FLAME AWAY FROM TIP
TOO LITTLE CAUSES BLACK SMOKE
11/18/2018

19. OBTAINING NEUTRAL FLAME
1. OPEN ACETYLENE 1/2 TURN
2. USE STRIKER TO LIGHT
3. OPEN OXYGEN SLOWLY UNTIL FLAME IS NEUTRAL
Flame Tip
11/18/2018

20. CUTTING PROCEDURE PREHEAT UNTIL CHERRY RED PRESS OXYGEN LEVER
MOVE STEADLY ACROSS METAL
IF YOU MOVE TOO FAST CUTTING STOPS AND MUST PREHEAT AGAIN
11/18/2018

21. TORCH SAFETY #6 FILTER LENS FASTEN CYLINDERS WITH CHAIN
KEEP SAFETY CAPS ON CYLINDERS
CHECK FOR LEAKS WITH SOAPY WATER
NEVER PUT OIL ON EQUIPMENT
11/18/2018

22. SAFETY CONTINUED OPEN ACETYLENE CYLINDER 1-1/2 TURNS
POINT TIP AWAY FROM YOU AND OTHERS
USE PROPER PRESSURE (LESS THAN 15 PSI)
USE STRIKER NOT MATCHES
NEVER LAY LIGTHED TORCH DOWN
11/18/2018

23. SHUTTING DOWN PROCEDURE
TURN OFF ACETYLENE FIRST AT TORCH
TURN OFF OXYEN AT TORCH
CLOSE CYLINDERS
DRAIN HOSES
11/18/2018