YogiSource.com my account | view cart | customer service
 Search:    
Welcome to the new Yoga.com Forums home!
For future visits, link to "http://www.YogiSource.com/forums".
Make a new bookmark.
Tell your friends so they can find us and you!

Coming soon ... exciting new changes for our website, now at YogiSource.com.

Search | Statistics | User Listing View All Forums
You are logged in as a guest. ( logon | register )



Angle size representation
Moderators: Moderators

Jump to page : 1
Now viewing page 1 [25 messages per page]
View previous thread :: View next thread
   Yoga -> General YogaMessage format
 
qizhen0926
Posted 2019-06-24 4:16 AM (#252005)
Subject: Angle size representation


Expert Yogi

Posts: 6088
50001000252525

9. What are the ways to reduce oxide inclusions in steel?

Answer: To reduce oxide inclusions in steel, foreign inclusions should be minimized. Improve the purity of raw materials; adopt reasonable smelting process, deoxidation system and refining process of molten steel according to the requirements of steel grade; improve the quality and performance of refractory materials used in converter and gating system; reduce and prevent secondary oxidation of molten steel, maintain normal Casting temperature, full protection casting, select good performance of protective slag; the selection of reasonable steel hot processing and heat treatment process are beneficial to improve the properties of inclusions and improve steel quality.

10. Why is argon gas blown without nitrogen?

Answer: Argon in inert gas, which is not dissolved in molten steel and reacts with any element, is an ideal stirring gas and is therefore widely used. Nitrogen is the same as argon in terms of agitation, and nitrogen is cheap, but at high temperatures, nitrogen can be dissolved in molten steel, and its nitrogen increase increases with temperature and nitrogen blowing time. When the temperature is higher than 1575 ??C When the nitrogen content in the steel is increased by 0.003%, which affects the quality of the steel, the use of nitrogen as a stirring gas is limited, and only a small amount of nitrogen-containing steel can be used as a stirring gas, and there is also a nitrogen-inducing instability. problem.

11. What is the significance of the decarburization reaction for the steelmaking process?

Answer: 1 The carbon in the molten iron is oxidized by the decarburization reaction to be close to or equal to the specification of the carbon in the molten steel at the time of tapping. 2 The cyclic agitation of the molten pool 3 The CO produced is necessary to remove the gas in the steel. 4 is conducive to the elimination of non-metallic inclusions in steel. 5 provides a heat source for the steelmaking reaction. 6 is conducive to the reaction between the slag steel in the blowing process.

Read More:

Stainless Steel Pipes & Coil Manufacturer, Supplier | CostaSteel
China Stainless Steel Pipes Manufacturer and Supplier
Cold & Hot Rolled Stainless Steel Coil Supplier
2B , No.1 Stainless Steel Sheets Prices


Read More:
Top of the page Bottom of the page
Jump to page : 1
Now viewing page 1 [25 messages per page]
Jump to forum :
Search this forum
Printer friendly version
E-mail a link to this thread


(Delete all cookies set by this site)