Safety precautions while using gas cutting torch & Surface preparation

 

Task No.   25.1                                                                                                 

  Task: Gas cutting welding practices

  Sub Task: Demonstrate safety precautions while using gas cutting torch.

  Aims:

1.     What are the safety precautions needs to be following while using gas cutting torch.

 

Requirement for performing the task:

1.     Reference theory from MEK text book.

 

Precaution to be observed:

1.  Inspect equipment for leaks at all connections using approved leak-test solution.
2. Inspect hoses for leaks and worn places.
3. Replace bad hoses.
4. Protect hoses and cylinders from sparks, flames and hot metal.
5. Use a flint lighter to ignite the flame.
6. Stand to the side (away from the regulators) when opening cylinder valves.
7. Infrared radiation is a cause of retinal burning and cataracts. Protect your eyes with safety glasses.
8. Protect your body from welding spatter and arc flash with protective clothing.
9. Be sure there is adequate ventilation available when welding in confined areas
10. Always have a fire extinguisher ready for immediate use

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Task No.  25.2                                                                                                

  Task: Gas cutting welding practices

  Sub Task: Carryout surface preparation prior gas welding/gas cutting Job.

  Aims:

1.     How to carryout surface preparation for gas welding.

2.     What are tools used for surface preparation.

 

Requirement for performing the task:

1.     Reference theory from MEK text book

2.     Chipping hammer

3.     Wire brush

4.     Hand grinder

 

 

Precaution to be observed:

 

1.     Surface should be free from oil and grease

2.     Remove rust from surface.

3.     Grind the surface.

4.     Don’t weld or cut on container.