Azim Safikhani

4 Questions 7 Answers 0 Followers

Questions related from Azim Safikhani

What is difference between type of scraps in use to grey cast iron?

I mean of the question is, we have two difference conditions parameters for the question: 1) We have a scrap for melting that there are in their chemical composition some alloying elements such as...

01 November 2016 5,004 4 View

How can we remove or reduce Ti from the gray iron molten metal?

Since the presence of Ti in gray iron lead to decreases hardness and the other hand lead to formation ferrite on the surface especially thin section, then the element (Ti) is harmful in the...

01 June 2016 1,231 2 View

What's the impact of increase in the amount of coal dust in the mixture of sand molding on formation ferrite on the surface grey iron parts?

We increase amount of coal dust in mixture of sand molding in order to reduce ferrite formation on surface of the grey cast iron. In for example (x) kg mixture of sand we added about 10 kg coal...

30 May 2016 1,199 6 View

What happened to absorbent colorless silica gel if in effect when heated it turned to brown?

Colorless silica gel heating in 120-140 oC for resuscitation. After it was observed that some of the granules change the color and turned to brown. Does it change color on absorption is effective...

01 March 2015 2,660 3 View