- •Vacuum technology development
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •5. Decide whether the following statements are true or false according to text a.
- •6. Answer the following questions to text a.
- •7. Read text b carefully paying attention to the words in bold type.
- •8. Decide whether the following statements are true or false according to text b.
- •9. Answer the questions to text b.
- •10. Match the words with the synonyms.
- •14. Match the parts of the sentences.
- •16. Grammar Tutorials: Word Order, Miscellaneous
- •17. Translate the following sentences. Notice the difference in the underlined words.
- •19. Translate the text from Russian into English. Use the list of words below for help.
- •Unit II. Theory of pvd Coatings
- •1. Words to be remembered.
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •3. Read text a carefully paying attention to the words in bold type.
- •4. Decide whether the following statements are true or false according to text a.
- •5. Answer the following questions to text a.
- •6. Read text b carefully paying attention to the words in bold type.
- •7. Decide whether the following statements are true or false according to text b.
- •8. Answer the questions to text b.
- •10. Make sure you know the meanings of these words. Match the words with their definitions.
- •11. Match the words with the synonyms (text a).
- •12. Match the same words with the antonyms (text a).
- •13. Translate the text on theory and practical use of pvd coatings, study the structure of TiAln. Make its technical and non-technical description.
- •14. Scan the text about Copper (Cu) carefully. Use the scattered Nouns – Verbs – Adjectives – Adverbial Modifiers to make as many correct sentences-statements as possible.
- •17. See the difference in the following words. Use a dictionary. Read all of them aloud. Make some sentences of your own. Some eight examples are given for you.
- •20. Learn the poem “The Planets” by heart. Say, if gold, silver and lead are used in vacuum technologies. What does present-day science say about the content of metals in the planets? The Planets
- •21. Practice makes perfect. Translate the text on Vacuum history in a written form.
- •24. Scan the biography of Michael Faraday. Put questions to the answers given below.
- •25. Look through the texts a-b again and make notes under the following headings. Then use your notes to talk about it.
- •History
- •II. Home Appliances II: Vacuum-Cleaner
- •20. Scan the biography. Put questions to the given answers.
- •Reading, Vocabulary & Creative Practice
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •3. Read text a. Pay attention to the words in bold type.
- •4. Decide whether the following statements are true or false according to text a.
- •5. Answer the questions to text a.
- •6. Read text b. Pay attention to the words in bold type.
- •7. Decide whether the following statements are true or false according to text b.
- •8. Answer the questions to text b.
- •13. Special Quiz. Think of the better way to remember the most of the vocabulary and the vacuum pump classification. Share your opinion on it with your partner.
- •Russian English
- •II. Классификация вакуумных насосов по принципу действия
- •15. A) Open the brackets giving the right forms of the words; b) Translate the text “Cryopump” in a written form; c) Compare texts 15.1 and 15.2.
- •16. Grammar Tutorials: Question Technique Read and give a title to the text. Put questions to the given answers.
- •18. Translate from Russian into English. Use the proper grammar rules and the prompting words in brackets.
- •19. Read the text “Pump Accessories”. Pay attention to the abbreviations, and Stone Wall Constructions. Summarize the text.
- •20. Translate the following abbreviations and Stone Wall Constructions.
- •21. Read about some pumps’ features and benefits. Pay attention to the suffixes in the words, describing the pumps. Using the descriptive words, try to persuade the customers to buy the pumps.
- •23. Make notes under the following headings. Then use your notes to talk about it.
- •Unit VI. Pumps and Compressors
- •“First, be sure a thing is wanted or needed, then go ahead.” Thomas Edison.
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •3. Read the text a. Pay attention to the words in bold type.
- •4. Decide whether the following statements are true or false according to text a.
- •5. Answer the questions to text a.
- •6. Read text b. Pay attention to the words in bold type.
- •7. Decide whether the following statements are true or false according to text b.
- •8. Answer the questions to text b.
- •10. Match the words with the synonyms.
- •11. Match the words with the antonyms.
- •12. Fill in the correct prepositions.
- •13. Open the brackets. Give the right forms of the words in bold. Translate the text in a written form.
- •14. Special Quiz. Read about the uses of compressors. Match the parts of the sentences making the sentences complete. Start from: Gas compressors are used … … .
- •17. Study the key words to the crossword from Unit III.
- •18. Engineer tested. Do you believe …
- •19. Study the compressor refrigerator schematic, operation and construction. Discuss the information in dialogues. How do you see the compressor refrigerator in the future?
- •Construction
- •20. Scan the biography both I) in English and II) in Russian. Make a close look at English and Russian versions. Find and write down the differences.
- •Follow-up Activity
- •21. Make notes under the following headings. Then use your notes to talk about it.
- •1. Kinetic Devices (General View).
- •Unit VII. Vacuum Engineering and Its Prospects
- •1. Words to be remembered.
- •2. Translate the sentences. Pay attention to the words in italics.
- •3. Read text a. Pay attention to the words in bold type.
- •4. Decide whether the following statements are true or false according to text a.
- •5. Answer the questions to text a.
- •6. Read text b. Pay attention to the words in bold type.
- •7. Decide whether the following statements are true or false according to text b.
- •8. Answer the questions to text b.
- •9. Make sure you know the meanings of these words. Match the words with their definitions. Consult the dictionaries.
- •10. Match the words with the synonyms.
- •11. Match the same words with the antonyms.
- •12. Fill in the correct prepositions.
- •13. Scan the text. Make its summary in Russian then give English translation of the summary.
- •14. 1) Scan the biography of Sir William Crookes. Pay attention to the underlined words and notions. Say or write what you know about them.
- •14. 2) Scan the biography of John Dalton. Put questions to the given answers.
- •15. Scan the article “Vacuum Technology Developed to Control Insects in Wood.” Divide the text into logical parts.
- •17. Read the advertisement. Make everybody trust the method described.
- •19. Read the article “Japanese Camera Used to Test Innovation.” Make up some 3–5 statements of your own which might be a summary to the article.
- •20. Study the suggested key answers to the previous tasks.
- •21. Make notes under the following headings. Then use your notes to talk about it.
- •Permissible pressure units including the torr 1) and its conversion
- •Vocabulary Terms And Abbreviations Used In Vacuum Engineering
- •Casing n оболочка, обшивка; отливка, литье
- •Confine V удерживать
- •Deliberate adj умышленный, обдуманный
- •Develop V развивать, строить, подготавливать, совершенствовать
- •Drastic adj глубокий, интенсивный, резкий
- •Drift n наклонный ствол, отклонение
- •Neutral n нейтральный
- •Vacuum technology development
- •220013, Минск, проспект Независимости, 65.
2. Translate the sentences. Pay attention to the words in italics.
1. Car accessories include the roof rack, rubber mat, mirrors.
2. It is clear that a booster pipeline is needed in this case.
3. The data is captured by means of an optical scanner.
4. Smoking can damage your health.
5. The missile has the device which enables it to find its target.
6. It would improve our efficiency if we used more up-to-date methods.
7. The whole story was a complete fabrication.
8. If our industries don’t use innovative methods we will never succeed.
9. These seeds must be covered with a layer of earth.
10. New production methods have led to high productivity.
11. The pump is under repair.
12. Sensor is an apparatus used for discovering of a particular quality.
13. The steam spins a turbine to produce electricity.
14. Your support is vital for the success of my plan.
3. Read text a. Pay attention to the words in bold type.
A. Means and Purposes
Vacuum engineering deals with technological processes and equipment that use vacuum to achieve better results than those run under atmospheric pressure. Either vacuum coatings or films, vacuum impregnation, vacuum deposition, electro-spray ionization, plasma spraying techniques, metal properties and many other things are of practical use and large interest for vacuum engineers and scientists, who take an active part in innovative developments. The purpose of vacuum engineering is to provide innovative solutions for helping to improve productivity and efficiency in manufacturing processes. For example, when handling metal pieces in automotive stamping applications, it is particularly vital to have flexible tooling because changes in size occur each time the vehicle model or car part changes. In the case of sheet metal stamping applications, vacuum is used to pick up the metal sheet and transport it to the next destination.
Vacuum deposition is a process used to create a thin layer of a substance (a coating) on a solid object (the substrate). The substrate is placed into a vacuum chamber and a small amount of the coating material is vaporized into the chamber. The molecules or atoms of vapor condense onto the substrate, forming (ideally) a uniform coating of controllable thickness. Many such layers can be built up, for example (in optics) to form an interference filter or other multiplayer optic, or (in microelectronics) to form different layers within a complex microchip.
Vacuum deposition is very commonly used in the fabrication of optics. Everyday objects that are created by vacuum deposition include mirrors, which are most frequently made of a glass substrate with aluminum or silver vacuum-deposited onto it; sunglasses, which often use vacuum-deposited coatings to attenuate light; and electronic microchips, which are fabricated using a combination of vacuum deposition and photography.
Common vacuum deposition techniques include sputtering, in which the vapor is created by directing an electron beam at a target made of the material to be deposited; and ion implantation, in which ions of the coating material are accelerated directly to land on the surface of the substrate.
Electro-spray ionization (ESI) is a technique used in mass spectrometry to produce ions. It is especially useful in producing ions from macromolecules because it overcomes the propensity of these molecules to fragment when ionized. In nanotechnology the electro-spray method may be employed to deposit single particles on surfaces.
Plasma spraying is a technique for producing coatings using a plasma jet. Deposits having thickness from micrometers to several millimeters can be produced from a variety of materials – metals, ceramics, polymers and composites. This technique is mostly used to produce coatings on structural materials. Such coatings provide protection against high temperatures, corrosion, erosion, wear; they can also change the appearance, electrical or tribological properties of the surface, replace worn material, etc. It can also be used for powder processing, modification of chemistry, etc. In that case, the substrate for deposition is absent and the particles solidify during flight or in a controlled environment (e.g. water). Vacuum coating processes consist of a source of vapor (atomic or molecular) of the material to be deposited. Such metals as brass, copper, bronze are popular in decorative coatings.
Spin coating is a special procedure used to apply uniform thin films to flat substrates. In short, an excess amount of the solvent is placed on the substrate, which is then rotated at high speed in order to spread the fluid by centrifugal force. Rotation is continued while the fluid spins off the edges of the substrate, until the desired thickness of the film is achieved. The applied solvent is usually volatile, and simultaneously evaporates. So, the higher the angular speed of spinning, the thinner the film is. The thickness of the film also depends on the concentration of the solution and the solvent. A device used for spin coating is called a spin coater, which is very popular in semiconductor industry. Spin coating can be used to create very thin films.
Vacuum impregnation sealing is not an external coating process, rather it is a process that internally seals parts using a vacuum pressure chamber, which impregnates liquid resin into minute pores in the part's surface. The process was previously used to seal porous parts, such as transmission housings and power steering pumps, to make them impermeable to liquids and gases, but it is now enjoying a renaissance of use by electronic OEMs who seek a competitive edge in terms of quality.
Since vacuum engineering and equipment are in great demand, there are many firms around the world, which supply a wide range of vacuum equipment, including replacement parts and accessories to various pumps, compressors, boosters as well as blowers, etc.
Comprehension Check – 1