Temperature and phase transformations fields during surfacing by welding of CCS machine roll

• Autorzy: Winczek J.
• Języki publikacji: EN

Abstrakty

EN

In work have been presented models of temperature fields and kinetics of phase transformations in continuous casting steel machine roll surfacing spiral welding sequence with swinging motion of welding head. The temperature field was determined by analytical solution for massive body heated by moving voluminal heat source. The progress of diffusional phase transformations was described basing on equation of kinetics JMA-K and Koistinen-Marburger’s for martensitic transfomation. Deliberations were illustrated by computational example of surfaced roll made from steel 13CrMo4. The temperature field and structural components fraction was calculated in section of regenerated area of material decline (along the roll axis). Considering critical temperatures, heat-affected zones have been determined: A1 and A3 – austenitic transformation, and solidus - fusion line. Accepted technological parameters of rebuilding gave results that reproduce geometry of padding weld heat-affected zones confirmed experimentally.

Słowa kluczowe

EN

surface treatment; heat treatment; multi-pass welding; numerical simulation

PL

obróbka powierzchniowa; obróbka cieplna; spawanie wielowarstwowe; symulacja numeryczna

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 3s
• Strony: 117--122
• Opis fizyczny: Bibliogr. 24 poz., rys., wykr.

Twórcy

autor

Winczek J.

• Czestochowa University of Technology, The Institute of Mechanics and Machine Design, Dabrowski st. 73, 42-200 Czestochowa, Poland

Bibliografia

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