Chapter 4 Extrusion Subjects of interest • Introduction/objectives • Classification of extrusion processes • Extrusion equipment (Presses‚ dies and tools) • Hot extrusion • Deformation‚ lubrication‚ and defects in extrusion • Analysis of the extrusion process • Cold extrusion and cold-forming • Hydrostatic extrusion • Extrusion of tubing • Production of seamless pipe and tubing Suranaree University of Technology Tapany Udomphol Jan-Mar 2007 Objective • This chapter aims to provide
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scientist you are responsible for conveying the results of an experiment to a supervisor‚ a colleague‚ or the public. Often‚ you will convey this information in the form of a scientific paper describing your work. This paper needs to clearly describe why and how an experiment was done‚ and it must include an interpretation of results‚ including a discussion of their importance and any significant sources of error. You lab report will be a brief version of a publication. It should contain the following
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Determining the Percentage of Copper in a Copper Ore Aim: To determine the percentage of copper present in malachite. Hypothesis: That the percentage of copper in the malachite will be four percent. Materials: 2 x 250mL beaker‚ pestle‚ malachite‚ sulfuric acid‚ water‚ 2 x filter paper‚ funnel‚ filter stand‚ Safety Precautions: Wear safety glasses at all times when dealing with chemicals and apron to avoid ruining clothes. Method: Record the mass of the malachite sample. Place the malachite
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The Effect of pH Level of a Liquid on the Rate of Corrosion of Copper wire In this experiment‚ I will be testing the corrosion rate of copper wire after leaving them in different liquids with different pH levels. By doing so I will be able to determine which pH level corrodes copper the fastest. I will conduct this experiment by pouring 250mL of different liquids with different pH levels in cups‚ followed by an iron strip placed into the cup. A stopwatch will be timing how long it takes the iron
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Pieces February 19 to march 20 Be ready for…. Neptune your life ruler‚ was last in pieces between 1847 and 1861. This time brought an end to slavery‚ new forms of art‚ and high philosophical and spiritual ideas. For you‚ intuition‚ compassion‚ creativity and magic now become your keywords. As does truth. 2011 overview for too long‚ pisceans have weathered tough times and worn all the non sense the heaven can muster. So‚ when do you say enough is enough? Well‚ as long as your still breathing. You
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Density of Metals Problem: How does the mass and volume help determine the density of known metal samples? Hypothesis: When comparing the density of Zn(zinc) and Cu(copper)‚ you will find that Copper is more dense than Zinc. You can test this out by using the density formula D=m/v. Materials: * 2 metals (options: zn‚ al‚ or cu) * 3 samples of each metal (small‚ medium‚ and large) * Scale/Balance * Calculator * Water * Graduated Cylinder Safety: * Be prepared for your
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Reading Reaction A Very Old Man with Enormous Wings Reading Reaction The short story‚ A Very Old Man with Enormous Wings‚ is written by Gabriel Garcia Marquez. It is a story containing lots of imagery and symbolism‚ and sheds light on the cruelty of human nature. With those elements‚ Marquez wrote a perfect magical realism story‚ everything from the setting‚ to the smell of the town’s air is put under the microscope. The story starts off at what many would guess is a small town off the coast somewhere
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Metal fabrication is the building of metal structures by cutting‚ bending‚ and assembling processes: Cutting is done by sawing‚ shearing‚ or chiseling (all with manual and powered variants); torching with hand-held torches (such as oxy-fuel torches or plasma torches); and via numerical control (CNC) cutters (using a laser‚ mill bits‚ torch‚ or water jet). Bending is done by hammering (manual or powered) or via press brakes and similar tools. Modern metal fabricators utilize press brakes to either
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reasons why it is an effective piece of drama. Use the film version as your source. William Shakespeare‚ England’s greatest writer. How could any Theatre deny this legend from their stage? His famous play Othello is a classic‚ a Greek tragedy promoting many themes‚ to name a few: love‚ anti – femininity‚ and racism. First performed in 1604 this intriguing storyline based in Venice and Cyprus has been thrilling audiences world wide for 400 years it has every character one could hope for from a typical
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Decomposing Copper Carbonate Mass of Crucible (g) Mass of CuCo3 added (g) Mass of Crucible + Copper Oxide (g) Mass of CuO produced (g) 0.00 0.25 0.50 0.75 1.00 1.25 What happens to the mass of the copper carbonate when it is heated? Give a conclusion‚ which describes why the mass of copper carbonate may have changed during your experiment. When the copper carbonate is heated it decomposes forming copper oxide and carbon dioxide. The copper carbonate turns into a
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