>
Fa   |   Ar   |   En
   Producing Low Fluorine Mold Powder By Replacing Caf2 With Na2co3, Zno and Fe2o3  
   
نویسنده Arefpour ..A.R ,Monshi .A ,Saidi .A ,Khayamian .T
منبع International Journal Of Iron And Steel Society Of Iran - 2011 - دوره : 8 - شماره : 1 - صفحه:12 -18
چکیده    Mold powders in continuous casting of steel contain fluorine through mainly caf2 and occasionally naf andna3alf6. fluorine develops dangerous gases such as sif4 and hf at high temperatures. in this study, caf2 is partlyreplaced by substances such as na2co3, zno and fe2o3.sulfur free portland cement clinker containing gypsumwas used as a new product base. these additions developed comparable viscosity to the industrially used powder.in order to compare the viscosity of laboratory samples with the reference sample, study the crystalline behavior ofsamples, and compare them to the reference sample, there were performed sloped plate groove viscometer, xrdand sem studies. it can be detected the crystalline phases such as gehlenite, nepheline, akermanite, cuspidine,na2znsio4, ca2znsi2o7, ca3sio5 and mn3o4, fe2sio4. in order to develop less toxic mold powder in continuescasting of steels, it is proposed being crystalline and glassy with comparable viscosity.
کلیدواژه Mold Powder ,Viscosity ,Crystalline Behavior
آدرس دانشگاه آزاد اسلامی واحد نجف آباد, Department Of Materials Engineering, Najaf Abad Branch, Islamic Azad University, Esfahan, Iran, ایران, دانشگاه آزاد اسلامی واحد نجف آباد, Department Of Materials Engineering, Najaf Abad Branch, Islamic Azad University, Esfahan, Iran, ایران, دانشگاه آزاد اسلامی واحد نجف آباد, Department Of Materials Engineering, Najaf Abad Branch, Islamic Azad University, Esfahan, Iran, ایران, دانشگاه آزاد اسلامی واحد نجف آباد, Department Of Materials Engineering, Najaf Abad Branch, Islamic Azad University, Esfahan, Iran, ایران
 
     
   
Authors
  
 
 

Copyright 2023
Islamic World Science Citation Center
All Rights Reserved