Task 5. Give Ukrainian equivalents to the following words and word combinations.

the simplest process, metal articles, relatively low melting point, to permit, to be suitable, rammed, wooden or metallic pattern, intricate, sand molds, superior, permanent mold, "die castings", high surface smoothness, dimensional accuracy, plaster, mechanical properties, to increase the strength, beneficial results, binary aluminium-zinc casting alloys, inferior, hot shortness, specific gravity, marked tendency, brittle, extensively, elongation, addition, machinability, common impurities, undesirable, amount, tensile strength, viscosity.

Task 6. Fill in the gaps with the missing words or word combinations. Use English equivalents to the following Ukrainian words: стійкість до корозії, розробка, рівність поверхні, взяти на себе.

1. _____ of the required strength has been a basic problem of the fabricating industry.

2. The fundamental properties of aluminium are lightness, workability, _____, high electrical and thermal conductivity and high power of reflecting light and radiant heat.

3. The whole burden of both technological and commercial development had to be _____ by the producers of the metal.

4. "Die castings" have very high _____ and dimensional accuracy.

Task 7. Find in the text information about the processes used in aluminium industry. Write this information down in the form of a table.

Type of a mold	Characteristics of castings

Дата добавления: 2015-07-20