ABSTRACT of OUTLET ACTIVITY of the MASTER
Subject of a thesis: “RESEARCH of HEAT-TRANSPORT PROCESSES AT DEGASIFICATION of molten METAL In a steel FURNACE
".
The chief: Tuyachov А.I.
The writer: Ponomarenko А.А.
Speciality: "Industrial теплотехника".
TOTAL CHARACTERISTIC of ACTIVITY
Urgency of a subject:
The world(global) tendency in сталеплавильном effecting - obtaining of high-performance metal for all marks of steels
. The quality of metal is determined not only structure of regulated components ( C, Si, Mn, S, P ), But also such parasitic impurity(additives) as nonmetallics
( Al2O3, SiO2 и др. ) And dissolved gass ( H, N, O
).
The purpose and research problems
:
The purpose of activity was the decrease of the contents of hydrogen in metal at the expense of purging By oxygen On 2 - 4 cm 3 / 100г With his(its) subsequent ladle degassing in conditions ОАО " ММК ". Such decrease of the contents The hydrogen can be reached(achieved) at intensity of purging 4500 – 5000 м3 / ч. The increase of intensity of purging conducts to further degasification of metal, however thus oxygen flow rate considerably increases.
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