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Viscosity of Copper slags

Viscosity-composition Relationship

For most typical slags the content of several minor components(Al2o3 , Mgo , Zno) Has been varied , and their influence on the slag viscosity has been investigated. Al2o3 markedly increases viscosity beyond 7% , Zno is the best basic reagent to lower viscosity and 5% Mgo gives the highest viscosity.

Viscosity-composition Relationship

Several authors have claimed that some indices of viscosity exist that lead to fairly simple relationships with chemical compositions at constant temperature. Winterhager and Kammel[1] proposed the equations

Viscosity = a/(Kz-b) (1)

a and b are constants; equation valid when Kz is of low value, and

Viscosity = c-d. Kz (2)

c and d are constants; equation valid when Kz is of high value . viscosity module' Kz is written:

Kz = [ %Feo+%Cao+%Mgo+%Zno+%Pbo]/ [%Sio2+%Al2o3] (3)

Higgins and jones[2] correlated viscosity with a "modified viscosity ratio" ,MVR , which we adapted as follows:

MVR ={ 056[Al+3]+1.40[Si+4]}/ {0.44[Fe+2] +0.36[Ca+2] +0.46[Mg+2] +0.44[Zn+2] +0.29[Pb+2]} (4)

In neither case was it possible to obtain a satisfactory correlation between the indices and viscosity of the slags. The trends of the plots were correct , but the dispersion of the values was very high , particularly at low temperatures.

References

[1] Butts A. Metallurgical problems , 2nd edn (New York:McGraw-Hill ,1943),446p.

[2]Kubaschewski O.Evans E.L1.And Alcock C.B.Metallurgical thermochemistry ,4th edn (Oxford ,etc.:pergamon,1967),495p.

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Wear

Please refrain from making test edits in Wikipedia articles, such as those you made to Wear, even if your ultimate intention is to fix them. Such edits appear to be vandalism and have been reverted. If you would like to experiment again, please use the sandbox. Please contribute your work from your sandbox or user page when you are done testing. Wnzrf (talk) 22:15, 2 March 2008 (UTC)

Article creations

Hi. I note you've created a number of new articles, such as Calculations on Scrap addition during copper blowing. May I suggest reading some help files, such as Help:Contents/Editing_Wikipedia and Wikipedia:Your first article before creating articles, to learn the markup and presentation standards that Wikipedia has? If you have any questions, please feel free to ask at the help desk, or on my own talk page. Good luck, and happy editing! Lankiveil ^{(speak to me)} 11:49, 13 March 2008 (UTC).

• Wikipedia is not a technical journal nor should you use it to draft articles for a technical journal. I think you should be working elsewhere. -- RHaworth (Talk | contribs) 12:16, 13 March 2008 (UTC)
• kneestody:I created to improve and check my skills for editing.
• kneestody: Because the password of the User:Masoud Sheykhi was forgotten , the User:kneestoday is doing the duty of the User:Masoud Sheykhi .

DISCIPLINES IN TRIBOLOGY

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April 2008

Hi, the recent edit you made to DISCIPLINES IN TRIBOLOGY has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thanks. Cometstyles 10:34, 11 April 2008 (UTC)

I assume that by blanking the article that you created you wanted the page deleted. I have tagged the page as such. LittleOldMe (talk) 10:38, 11 April 2008 (UTC)

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