COPPER AND COPPER ALLOYS COPPER AND COPPER ALLOYS: Copper and its alloys are widely used in many products that are used in our everyday life. They have excellent properties such as electrical and thermal conductivity good strength. They have high corrosion resistance and fatigue resistance. Copper is a non-magnetic material. Pure Copper is soft and used widely in wires and cables and is extensively used for passage of electricity. Copper is used in the building construction. Source:
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leather more elastic and water-resistant". Chromium is a very rigid metal with a very firm chemical composition and is widely used in stainless steel (alloy steel) manufacture. When Chromium is supplemented to steel‚ it becomes harder‚ shinier‚ and corrosion resistance. Chromium is one of the hardest metals with an incredibly high melting point. However‚ the melting temperature of Chromium depends on its purity. The average melting temperature goes from 1513 Cº to 1920 Cº‚ with the boiling point of 2199
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SKMO 3713 SHIP AND OFFSHORE PRODUCTION TECHNOLOGY TITLE: PRODUCTION PROCESS OF VERY LARGE CRUDE CARRIER (VLCC) TEAM MEMBERS: MUHAMMAD AZAM AZRAEI BIN ABDUL HALIM (A12KM0163) MUHAMMAD AMIRUL ARSYAD BIN KHASIRAT (A12KM0243) MUHAMMAD AZINUDDIN B OTHMAN ARIFF (A12KM0164) MUHAMMAD HAFIDZ BIN REDZUAN (A12KM0165) MUHAMMAD HAKIMI BIN ZULKEPLI (A12KM0166) MOHAMAD AZAM BIN MOHD AZMI (A12KM0157) PREPARED FOR: DR. JASWAR KOTO ACKNOWLEDGEMENTS First of all‚ we would like to
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Boiler Water Tests A BRIEF DESCRIPTION OF THEIR MEANING AND PURPOSE Expression of Test Results - PPM (parts per million) In water treatment‚ results are most commonly expressed in parts per million (ppm). Other terms commonly encountered are milligrams per liter (mg/l) and grains per gallon (gpg). For practical purposes‚ 1 ppm = 1 mg/l and 1 gpg = 17.1 ppm. The term “ppm” is unitless; that is‚ as long as the same units are used on both sides of the relationship‚ any units can be used. For example
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Materials Final Review (TESTS I‚ II‚ & III) Part I : Multiple Choice 1) As the temperature of a polymer increases‚ its density a. Increases b. Decreases c. Remains fairly constant 2) Which one of the three polymer types does not involve cross-linking: a. Elastomers b. Thermoplastics c. Thermosets 3) Degree of polymerization is which of the following: a. Average number of mers in the molecule chain b. Proportion of the monomer that has been polymerized c. Sum of the molecule weights of the
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be used in this EEI. The purpose of this EEI is to test the rate in which lipase reacts to different variables such as temperature and pH. Enzymes are found in foods‚ epically raw foods such as meat‚ but cooking foods destroys any enzyme activity‚ including lipases. If the temperature changes then the pH levels will change. The optimum temperature is 37°‚ that is the average temperature inside the human body; the optimum pH level is 8.0. (Corporation‚ 2013) The purpose of this EEI and experiment
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on which brake shoe aligns is made of a special type of cast iron that is heat conductive and wear resistant. But one problem with that is its ability to undergo corrosion. As these vehicles operate in mines where the rate of oxidation is pretty more the drum gets easily corroded and there is a need for frequent change of the brake shoe. I proposed a solution‚ stating that aluminizing of this brake drum will reduce the rate of corrosion which in turn reduces the necessity of changing brake shoe frequently
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HKDSE Chemistry – A Modern View 1 (SAMPLE) Suggested Answers (Coursebook) |Chapter 1 The fundamentals of chemistry | |Class Practice |1 | |Chapter Exercises |3 | |Chapter 2 The atmosphere
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Customers today demand higher quality and durability from the products they buy. Not only do they expect these products to perform well‚ but they want the finish to look good and resist corrosion for a much longer period of time. Powder coating is different from painting. There are no liquids or solvents. Therefore‚ it is the ultimate coating for environmental friendliness. Being dry‚ the powder overspray can be reclaimed for very high application efficiency. It uses heat to convert its state from
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* Another substance‚ called a reducing agent causes or promotes the reduction of a metal compound to an elemental metal. In this example‚ it is CO. * Corrosion‚ including the rusting of metals‚ is now understood to be similar to combustion. * Reactions of substances with oxygen‚ whether they are combustion‚ burning‚ or corrosion‚ came to be called oxidation. * Oxidation is a process in which metals are converted to compounds by most non-metals. * This does not always occur
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