Английский для сварщиков. Гричин С.В. - 88 стр.

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ТПУ | Томск

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88
cattle.
Speaking
True or false?
1. The only used fuel gas in oxy-fuel welding is acetylene.
2. 'Oxidation' and 'combustion' are two terms which mean one and the same
process.
3. Oxygen is the best fuel in oxy-fuel welding.
4. The blowtorch has two valves and one connection.
5. The welder wears goggles to protect his hands from burns.
6. The procedures and equipment used for gas welding and gas brazing are
different.
7. When setting up the equipment, the valve cap is removed before the
oxygen tank is fastened.
8. Both pliers and a wrench are used to tighten the nut of the regulator.
9. Sunglasses can be used instead of goggles to protect eyes from sparks and
splatter.
10. The size of the flame depends on the size of the orifice in the tip and can
be adjusted by the valves on the torch and by the regulator settings.
Answer the following questions:
1. What are the other two names of the oxy-fuel welding process?
2. What does the high temperature needed to melt the metal obtained by?
3. Is acetylene always shipped to the welding site in containers?
4. Why is hydrogen useful for underwater welding?
5. How can hydrogen be produced for small torches?
6. How is oxygen delivered to the welding site?
7. What does the apparatus used in gas welding consist of?
8. What colour are the oxygen and fuel hoses?
9. What is a neutral flame?
10. How many parts does an acetylene flame have?
Use the plan to make a report about gas welding:
1. Difference between Oxy-fuel welding and oxy-fuel cutting.
2. Fuel gases used for gas welding.
3. Parts of the apparatus used in gas welding.
4. Rules of setting up the equipment

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