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31 Cards in this Set
- Front
- Back
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Bourbon Tube ? |
Located in gauge, indicates how much pressure is in cylinder. Can be damaged if cylinder is opened too fast. |
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Flashback? |
> Flames burn beyond mixing chamber. > Flame extinguished with hissing sound. > Torch handle gets hot |
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Backfire? |
>Flame burns back into tip >Popping sound caused by too little gas flow > Easily re-ignited |
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Burnback? |
>Hot tip, orifices enlarged not allowing mixer passages adequate gas flow >Faulty mixing and torch body seats |
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Working in smoke range will result in? |
Backfires |
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Oxygen Cylinder Fibre disk will rupture at? |
32000 PSI |
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Liquid Cryogenic tanks pressure at? |
240 PSI |
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Fuse Plugs on Acetylene cylinders melt at? |
100 C 212 F |
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Acetylene is manufactured by? |
Dropping calcium carbide in water |
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Maximum working pressure of acetylene cylinder? |
15 PSI |
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Acetylene Cylinder pressure? |
250 PSI |
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Max. inlet pressure of Oxygen Cylinder regulator is? |
3000 PSI |
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Three types of flames |
>Reducing ( Oxidizing) flame > Neutral > Carburizing |
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Welding, cutting and heating tips are made of? |
Copper |
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Carburizing Flame is? |
>more acetylene than oxygen > 700F > Reducing flame >Weld is hard n brittle |
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Neutral Flame? |
> equal amounts of acetylene and oxygen > 6000F >Quality weld >mild steel use > 1X flame |
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Oxidizing Flame? |
>6300F > Loud, Hot flame >Foamy Sparky Puddle >Excess Oxygen > weak brittle weld |
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Brass is? |
Alloy made up of 60%copper and 40%Zinc |
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An Adhesion process heated but not melted? |
Brazing |
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A physical process which liquid is drawn into the space. |
Capillary Action |
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Temperature at which brazing alloy is liquid is? |
Flow temp. ranges from 1145-1640F |
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Inhaling the metal fumes of Zinc causes? |
Brass Chills |
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Hot short? |
Temp. above 800F of copper and brass become weak. |
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Bellmouthed Kerf ? |
excessive oxygen cutting pressure |
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Check valves? |
Allow flow in one direction, have spring and o-ring |
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Chrome, Nickel, Cadmium and Beryllium require what? |
SCBA to avoid fumes |
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Three S-Rays? |
>Infared > Ultra-voilet >visible light |
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Flashback Arrestors have..... |
stainless steel filters to distinguish flame. |
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Filler Rod RG45 = |
45,000 TENSILE STRENGTH |
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Filler Rod RG60= |
65,000 TENSILE STRENGTH |
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Filler Rod RG65= |
108,000 TENSILE STRENGTH |
