Formation by cold working (Cold Working) can also be done in a simple but if oversize desired size then it must first be softened (annealing) on the heating temperature 5000C. Cooling speed is not critical but Quenching with water to eliminate dirt and slag as well as ease in cleaning.<\/p>\n
a. Copper Alloy (Copper base Alloy)<\/strong> Copper Alloy (Copper Alloy) can be grouped into: b. Copper alloys with low levels<\/strong> 2) Cadmium-Copper;<\/strong> Soft nature of the cable is made of Cadmium-Copper is widely used in the electrical wiring of the aircraft because it is flexible and resistant to vibration. Cadmium levels were lower only memanajang damage will occur but depends on the conductivity of the copper itself.<\/p>\n 3) Chromium-Copper,<\/strong> Solid solution of Chroimum will be increased according to the increase in temperature and all elements of Chromium will be entered in the solid solution at temperatures 10000C. If the alloy is in-Quenching of this temperature there will be a “Solution treated” so that all the rest of the chromium will remain in solid solution and produce a tenacious and tough alloys.<\/p>\n The process of precipitation (precipitation treatment) is done to redress the balance and improved mechanical properties, namely by providing the reheating temperature up to 5000C with time (Holding time) for 2 hours and then cooled.<\/p>\n<\/div>\n
\nCopper Alloy (Copper base Alloy) the most widely used as an engineering material because it has many advantages, among others:
\n1) It has good mechanical properties, electrical properties and high thermal conductivity and resistance to corrosion and wear resistance.
\n2) Easily formed by machining
\n3) Easily formed through heat processing (Hot working) and cold working (Cold Working)
\n4) Easy to be connected via soldering, brazing and welding.
\n5) Easy polished or diplating if desired
\n6) Pressing and forging temperature is lower than with the use of metallic materials Ferro.<\/p>\n
\n1) Copper low alloy included in this group are Silver-Copper, Cadmium-Copper, Tellurium-Copper, Berylium-Copper and Copper-Nickel Alloy-Silicon.
\n2) Copper alloy with high levels, namely Brass and Bronze.<\/p>\n
\n1) Silver-Copper;<\/strong>
\nSoftening temperature of this type of copper can be increased from 200 0 to 350 0 via the addition of up to 0.08% Nickel element. The copper will be harder with the voltage can not be reduced by soldering temperatures, penimahan (Tining) or other process that uses a low temperature. Silver Elements with low levels of these effects occur only very few irregularities and depending on the value of the conductivity of the copper itself. Silver-Copper is used as part of Comutator Radiator components and the various applications that require hardness and stable voltage without being affected by the heat caused by heating during the process pnyambungan. Silver also has a creep resistance properties of the copper due to softening temperature.<\/p>\n
\nCadmium levels of 1% on Copper will increase the softening temperature, as well as resistance, voltage and increases ductility and fatigue. Cadmium-Copper conductors are used to extend the range of overhead line cables and conduction of electrical current to the electrode resistance welding (welding electrodes)<\/p>\n
\nelements up to 0.5% Chromium Copper will minimize the effect on conductivity, but the violence and the tension will increase and will receive treatment panas.Analisis reaction to equilibrium diagram between Chromium alloy with Copper gives an indication that only a small quantity of chromium that DAPT mixed in solution on (solid solution).<\/p>\n
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