employed. The higher weld-metal deposition rate of FCAW over GMAW (Gas Metal Arc Welding) has led to its popularity in joining relatively heavy sections of 1" or thicker. Another major advantage of FCAW is the ease with which specific weld-metal alloy chemistries can be
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References: Alloy‚ L. (2004). Abnormal Psychology: Current Perspective‚ 9th Ed. McGraw Hill Co. Baird‚ T. & August‚ G. (1985). Familial Heterogeneity in Infantile Autism. Journal of Autism and Development Disorders. 15‚ 315 – 321. Gillberg‚ C. & Coleman‚ M. (2000)
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last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1. Scope 1.1 The primary objective of metallographic examinations is to reveal the constituents and structure of metals and their alloys by means of the light microscope. In special cases‚ the objective of the examination may require the development of less detail than in other cases but‚ under nearly all conditions‚ the proper selection and preparation of the specimen is of major
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BS 3551:1962 BRITISH STANDARD Incorporating amendment issued August 1963 (PD 4964) Specification for Alloy steel shackles --`‚‚``‚‚````````‚‚‚``‚‚‚`‚``‚``-`-`‚‚`‚‚`‚`‚‚`--- [UDC 621.885.7:669.15] Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Licensee=BP International/5928366101 Not for Resale‚ 06/04/2010 04:58:11 MDT BS 3551:1962 Co-operating organizations
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guess paper 1. Express the rate of following reaction in terms of disappearance of hydrogen in the reaction. 3H2(g) + N2(g) 2NH3(g) 2. What is peptisation? 3. Write Reimer Tiemann reaction. 4. Why is CO stronger ligand that Cl-. 5. Write structure of 2-(2-Bromophenyl)butane. 6. Complete the reaction C6H6+R COCl 7. Why pentahalides more covalent than trihalides? 8. What is difference between nucleoside and nucleotide? 9. Explain the following- (a) Gattermann Koch
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than water‚ and has great strength when alloyed‚ it doesnt rust and has high electrical conductivity‚ and Aluminium is also ductile‚ making it a very useful metal. Aluminium readily makes alloys with copper‚ zinc‚ magnesium‚ manganese and silicon. Aluminium foil is 92-99% pure aluminium. Other uses of aluminium alloys include computers (all Apple MacBooks are made from aluminium)‚ cooking utensils‚ transportation (aircraft‚ rockets and cars mainly because of their high strength-to-weight ratio)‚ packaging
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http://www.plating.com/platingtechnical/poorsdhesion.htm POOR ADHESION Poor adhesion results in the chrome deposit separating from the substrate. This can occur as either peeling or blistering of the chromium layer‚ and can happen immediately as the part comes out of the bath‚ or later when it is put into service. Unfortunately‚ a viable nondestructive test for adhesion is not available. An inconclusive tests is to immerse the part in boiling water AP‚ until it is up to temperature‚ then immediately
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Casting Processes Sand Casting http://www.youtube.com/watch?v=rgL2Jn5mk1A http://www.youtube.com/watch?v=dlQ54WATvzA Investment Casting http://www.youtube.com/watch?v=tyrXq_u1OH0 http://www.youtube.com/watch?v=dOw624I9FDQ Die Casting http://www.youtube.com/watch?v=LH8B3i6e8d4 http://www.youtube.com/watch?v=1AgDGLNE6Es Continous Casting http://www.youtube.com/watch?v=d-72gc6I-_E Centrifugal Casting http://www.youtube.com/watch?v=3qKGx_AxHp0 Process Physics 1 A1 V1 2 V2
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Elasticity of Solids Deformation: Changes in shape or size of an object through the application of external forces. Elasticity: Property which allows a material to regain its shape after being distorted. Elastic Limit: The maximum amounts by which an object or a material can be stretched and still regain its original shape after the distorting forces are removed. An object or a material which returns to its original length or size after being distorted suffers elastic deformation
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of chromium‚ this helps to cross-link their strands of collagen proteins into a mesh‚ making the 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
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