melt or even vaporize metal. The melted metal is washed away by the dielectric. The sparks cut small‚ spherical shaped‚ cups into the surface. The surface is covered with recast (melted and resolidified) metal. Thus‚ there will always be a hard‚ brittle‚ surface layer on EDM part surfaces. What process would you recommend to make many small holes in a very hard alloy where the holes will be used for cooling and venting? Again‚ LBM is good for small holes in hard metals and since they are being
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environments. Here are those solubility rules: Most alkali metal compounds and compounds are soluble. Cl-‚ Br-‚ I- compounds are soluble‚ except when they contain Ag+‚ ‚ or Pb2+. F- compounds are soluble‚ except when they contain group 2A metals. ‚ ‚ ‚ and CH3COO- compounds are soluble. compounds are soluble‚ except when they include Ca2+‚ Sr2+‚ Ba2+‚ Ag+‚ Pb2+‚ or . ‚ ‚ ‚ ‚ S2-‚ OH-‚ and O2- compounds are insoluble. Group 2A metal oxides are classified as strong bases even though they are
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WHAT ARE CHALCOGELS? Chalcogels are a new type of aerogel that is chalcogen-based. Aerogels are a special type of material that presents a high surface area. Chalcogels are composed of metal-chalcogen moieties that are interconnected with a linking metal ion (Riley et al.‚2012). Figure 1 AeroGel INTRODUCING… TM Physical and Chemical Properties Chalcogels are a new family of aerogel that is not oxide-based (Katnatzidis and Bag‚ 2008). Zinc chalcogenide‚ like many other aerogels‚ have
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opened state. Also‚ it is usually made from chrome-plated steel like the wedges to prevent any possible failures through metal fatigue in continued use. The handles/grips of the staple remover are important for the usage‚ but it does not have any functional roles for the aim of the device. The grips provide easy use for users‚ because people do not have to hold cold and tough metal surface. Grips are largely made from plastic materials which are the most proper choose with its cheapness and formability
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speed of a metal carbonate breaking down depends on where the metal is in the reactivity series. The more reactive a metal is the slower it takes for it to breakdown. The less reactive a metal is it breaks down faster. Explain the hypothesis using scientific ideas: The metal carbonate which is lower in the reactivity series such as copper can thermally decompose much faster because it is the least reactive metal so its an unstable carbonate and the bonds are much weaker. So the metal that is
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LIVERPOOL JOHN MOORES UNIVERSITY School of Engineering‚ Technology and Maritime Operations COLD WORKING OF METALS Author: Student No: Module Code: Module title: Date: S. S. Hlongwane 508450 5065ENG Materials 31/10/2011 5065ENG COLD WORKING OF METALS REPORT CONTENTS S.S. HLONGWANE 508450 1 INTRODUCTION ............................................................................................................................... 3 1.1 1.2 BACKGROUND ......................
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The first sentence in the “Magic Metal Tube” incorporates the title into the sentence‚ giving you an idea of what the story is about. A vivid description of what is on the tube‚ like the gold circles and the red lines. Color really brings a sense of visualization to the reader’s mind. The writer also uses sensory details‚ to explain a memory and the smell the character experiences when interacting with an object when he/she opens it. The character gets this sense of smell from ancient China‚ that’s
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manager because they were examined and professionally recruited. c. More emphasis is now placed on project management which leads to more good quality work in less time. 3. What skill set would be ideal for the future project managers at Apache Metals? a. Strong leader b. Highly organized c. Time-efficient d. Effective communicator e. Quick Problemsolver f. Economical g. Excellent negotiator h. Open-minded i. Good planer j. Good teambuilder/worker 4. What overall cultural issues must
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The term “retardation” has often been used in society as a word to insult ones intelligence. However‚ Metal Retardation (MR) is a serious illness thousands of people suffer from each day. Due to historical negative connotations of retardation‚ the term Intellectual Disability (ID) has been adapted as a means of describing the disorder. MR has been recognized as a neurodevelopmental disorder‚ which impairs ones intellectual and adaptive functioning capability. Often times an IQ score less than 70
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In this experiment‚ we used acquired observational data to develop an activity series describing the relative reactivity of the metals being tested. The elements within a periodic table often show different trends in physical and chemical properties depending on the period or group they are apart of. In a periodic table‚ elements are arranged by increasing atomic number in horizontal rows called periods. The atomic numbers represent the number of protons in each element. The periodic table is also
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