Solder (/ˈsoʊldə/‚[1] /ˈsɒldə/[1] or in USA /ˈsɒdər/[2]) is a fusible metal alloy used to join together metal workpieces and having a melting point below that of the workpiece(s). Soft solder is typically thought of when solder or soldering is mentioned‚ with a typical melting range of 90 to 450 °C (190 to 840 °F).[3] It is commonly used in electronics‚ plumbing‚ and assembly of sheet metal parts. Manual soldering uses a soldering iron or soldering gun.Alloys that melt between 180 and 190 °C (360
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has been accumulated in this field‚ largely by trial-and-error methods. Nevertheless‚ the forging industry has been capable of supplying products that are sophisticated and manufactured to very rigid standards from newly developed‚ difficult-to-form alloys. The physical phenomena describing a forging operation are difficult to express with quantitative relationships. The metal flow‚ the friction at the tool/material interface‚ the heat generation and transfer during plastic flow‚ and the relationships
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manufacturer’s new metal alloy prosthesis. This communication strategy will cover a 12- to 18-month period. The topics under discussion will be a description of the product (or service) our team will launch; how different communication modalities would be effective in marketing our client’s product to target groups of different ages; what specific modalities would be effective with different age groups and why; the concept of an integrated communication
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Alloy Wheel Powder Coating Importance of Powder Coating The process of powder coating is significant for making colour changes as well as to match the existing finish of the wheel. We at Alloy Wheel Refurbishment Services use the latest technology to provide the best services for long-term benefits and client’s satisfaction. In actuality‚ Powder Coating is considered to be a better and wiser choice compared to spray paint since the powder coating is not only durable but also it provides you with
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pre corrosion on the mechanical properties‚ fatigue life‚ microstructure and weight density of Aluminium alloy 8011. 3.5 % NaCl solution was used to pre corrode the Aluminium alloy 8011 specimens. The specimens were kept in the solution for 100 hours. After the pre corrosion various test were performed to study the effects of pre corrosion on tensile strength and fatigue life. Aluminium alloy 8011 is used in the production of fins of various heat exchangers which are used in the cooling systems of
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Co-Cr-Ni-Fe alloy coatings in 3.5%NaCl solution.The black arrows next to the forward and reverse anodic branches indicate the potential scan directions. Negative hysteresis is said to occur when the current density of the reverse scan is less than that of the forward scan whereas positive hysteresis is said to occur when the reverse scan exceeds the forward scan [33‚34]. The negative hysteresis in the reverse scan of the cyclic polarization curve (Fig.5) indicates that the Co-Cr-Ni-Fe alloy is not susceptible
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9.1 Manufacture of Sulphuric Acid 1. State uses of sulphuric acid in daily life. - lead acid batteries in automobiles and for home use - extraction of elements from ores - manufacturing of fertilizers 2.The following shows an incomplete flow chart of the Contact process. a) b)Chemical equation A. B. C. D. 3. Briefly explain the sources of sulphuric dioxide gas in atmosphere. -Sulphur dioxide is produced mainly from the combustion of fossil fuels
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wt% C alloy at a temperature just below the eutectoid‚ determine the following: (a) The fractions of total ferrite and cementite phase. (b) The fractions of the proeutectoid ferrite and pearlite. (c) The fraction of eutectoid ferrite. (a) This part of the problem is solved by application of the lever rule employing a tie line that extends all the way across the α + Fe3C phase field. Noting that the alloy composition is 99.65 wt% Fe – 0.35 wt% C‚ i.e. carbon concentration in the alloy‚ CO
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Study of the mechanical properties and corrosion behaviour of AISI 304L by varying welding parameters by Abdus Samad Anwar‚ 070601 Rajesh Kumar‚ 070646 A Project Report submitted in partial fulfillment of the requirements for the degree of Bachelor of Technology in Metallurgical and Materials Engineering Supervised by Prof V.K.Tewari Department of Metallurgical and Materials Engineering Indian Institute of Technology Roorkee May 2011 CANDIDATE’S DECLARATION This is to
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Issues with Solder Alloys‚ Solder Pastes and Lead-free Solders 1. Solder Alloy Considerations on selecting solder alloy should be based on the following criteria [1]: 1) The melting range of solder alloy‚ considering application temperature; 2) The mechanic properties of solder alloy‚ considering to application conditions; 3) Metallurgic compatibility‚ considering leaching phenomenon and possible intermetallic compound; 4) Compatibility with application environment; 5) Wetting performance
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