Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Copper And Its Production
Copper is marked via a host of good engineering properties. The foremost is copper's good electrical conductivity and bulk of copper is utilized as electrical conductor. This also has a high thermal conductivity and coupled along with its resistance to corrosion this is largely employed as heat exchanger tubes particularly beneath circumstances while corrosive atmosphere exists. Its fabrication ease and medium tensile strength are added advantages in its industrial application.
Copper is removed from its sulfide ore. That ores also comprise sulfides of iron. Low grade ore is transformed in sulfide concentrate that is smelted in reverberatory furnace to generate a mixture of sulfides of copper and iron, called mate. The level is separated from matte. The copper sulfides are then chemically transformed in impure or blister copper of 98 percent purity, via blowing air via the matte. The iron sulfides is oxidized and converted in slag. The blister copper is after that transferred to refining furnace where main impurities are transformed in slag and removed. Such fire refined cooper is termed as tough pitch copper and is then refined electrolytically to produce 99.95 percent pure copper termed as electrolytic tough pitch or ETP copper.
Electrolytic tough pitch copper is utilized for production of strip, rod plate and wire. Such products offer several industrial reasons. But electrolytic tough pitch copper contains 0.04% oxygen that forms interdendritic Cu2O while copper is cast. If copper is heated to a temperature of 400oC in the atmosphere of hydrogen, then hydrogen reacts along with densritic Cu2O and generates steam. Such H2O molecules being large in size do not diffuse readily and cluster around grain boundaries hence causing internal holes. This phenomenon is known as hydrogen embrittlement. The methods of refusing hydrogen embrittlement are adding phosphorous in the alloy copper and hence allowing P2O5 to form. The alternative method is to cast electrolytic tough pitch copper under a controlled reducing atmosphere to produce copper that is oxygen free high conductivity or OFHC copper.
why this great equation does not apply(involved) in nuclear reaction ?
Calculate thermal efficiency and compression: Q: Calculate thermal efficiency and compression ratio for automobile working on otto cycle. If energy generated per cycle is t
Hi there. I am stuck on a problem. I am working out the section of 2 beams for the floor of an elevator. Thus far the critical conditions are made up of a beam that is 1.8m long
how to find view factor for a cylinder to humanbody at a distance?
Draw neat diagram of aWankel engine and explain its working. Derive expressions for work done and efficiency for an Otto cycle. Illustrate with diagrams the several types of
m=4.9Kg, K=3694 N/m, x=0.013m. I have this much details, now I want to find the damping constant ''b''. I hv tried so much, but this question needs damping ratio ''zeta'' or damped
say about it
Differences between torque and torsion: Give differences between torque and torsion. List a few examples of torsion in the engineering practice. Sol.: When structural or
In a nuclear power plant saturated steam at 30 bar enters a h.p. turbine and expands isentrophically to a pressure at which its quality is 0.841. At this pressure the steam is pass
Getting Familiar: An entrepreneur wishing to set up an industry must first formulate a comprehensive plan for setting the industry for its success. For this, he/she should have co
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd