Slag pots are made of electric furnace molten steel, and the service life is longer than slag pots which are made of converter molten steel.
1. Making processTo extend the service life of the slag pot, Tenfaye analyzes the thermal strength and improve the structure of slag pot by using the finite element and ANSYS. With the help of "Huazhu CAE" casting simulation software, Tenfaye simulates the solidification process of the slag pot to control its internal quality.
Wood molding
The electric arc furnace tapping + LF, refining furnace accurately controls the chemical composition, improves inclusions in molten steel and reduces S, P, H, and N contents.
Pouring, OBLF GS1000 direct-reading spectrometer in front of the furnace, accurately detects the chemical composition of the product
Annealing + normalizing: eliminate stress and make the internal structure uniform in order to ensure no deformation or cracks in the later stage.
Mechanical shot blasting of outer surface + finishing of inner surface, roughness Ra100
Ultrasonic flaw detection in the 500mm range of the slag pot trunnion: the flaw detection level reaches: JB/T5000.14-1998 Level 2, and flaw detection of slag pot body reaches level 3.
The outer surface of the slag pot is coated with silver-gray matte waterproof and heat-resistant paint.
2. Technical requirements
The trunnion is the most important position of the pouring ladle. It belongs to the red detection area and no defects are allowed. The trunnion material is: 35CrMo, 40Cr. It follows the Chinese industry standard JB/T6396-2006.
The inner working surface, polished smooth and excessive. Perform ASTM A802 LEVEL 3.
Heat treatment: normalizing + tempering, issuing heat treatment curve record chart and heat treatment report.
Non-destructive testing: UT performs DIN EN 12680, 3-1, level 3 MT performs DIN EN 1369, LM2/SM2/AM2.
Provide material chemical composition reports and material mechanical properties reports.
Steel castings applied in metallurgy industry are the core products of Tenfaye. Welcome your inquiry! Email:mischa.wang@tenfaye.com