TY  - JOUR
AU  - Odanović, Zoran
AU  - Grabulov, Vencislav
AU  - Momčilović, Saša
AU  - Tasić, Boban
AU  - Đurđević, M.
AU  - Arsić, Miodrag
PY  - 2008
UR  - http://rims.institutims.rs/handle/123456789/79
AB  - As a part of the coal fired power stations a coal milling plant is important, as it supplies a coal and air mixture for combustion in a power plant. Coal milling plant is involved in wearing process, since the raw coal is an abrasive substance. Availability of milling plant is critical to the ability of coal fired power stations to generate electricity, and repair work can be expensive and time-consuming. The details of the investigation of the optimal parameters for repair welding of abrasive damaged working wheel of the coal mill are presented in the paper. Repair was performed without disassemble of the wheel. Diameter of the wheel was 4100 mm, and a weight was approximately 23 tons. The wheel was made of the cast steel GS 17 CrMo 55. As the weldability of this steel is limited, a series of trial welds with different welding and thermal conditions were performed. The effects of the different welding processes and parameters, different filler materials and different preheating and post weld heat treatment conditions on hardness and macro and micro structure were analyzed. The Y probe was used for sensitivity testing to crack forming. Based on obtained results, the optimal welding parameters were selected, and the repair welding of the wheel was performed. Hardness measurement and NDT testing were verified quality of the applied repair welding.
T2  - Welding in the World
T1  - Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station
EP  - 352
IS  - SPEC. ISS.
SP  - 347
VL  - 52
UR  - https://hdl.handle.net/21.15107/rcub_rims_79
ER  - 

@article{
author = "Odanović, Zoran and Grabulov, Vencislav and Momčilović, Saša and Tasić, Boban and Đurđević, M. and Arsić, Miodrag",
year = "2008",
abstract = "As a part of the coal fired power stations a coal milling plant is important, as it supplies a coal and air mixture for combustion in a power plant. Coal milling plant is involved in wearing process, since the raw coal is an abrasive substance. Availability of milling plant is critical to the ability of coal fired power stations to generate electricity, and repair work can be expensive and time-consuming. The details of the investigation of the optimal parameters for repair welding of abrasive damaged working wheel of the coal mill are presented in the paper. Repair was performed without disassemble of the wheel. Diameter of the wheel was 4100 mm, and a weight was approximately 23 tons. The wheel was made of the cast steel GS 17 CrMo 55. As the weldability of this steel is limited, a series of trial welds with different welding and thermal conditions were performed. The effects of the different welding processes and parameters, different filler materials and different preheating and post weld heat treatment conditions on hardness and macro and micro structure were analyzed. The Y probe was used for sensitivity testing to crack forming. Based on obtained results, the optimal welding parameters were selected, and the repair welding of the wheel was performed. Hardness measurement and NDT testing were verified quality of the applied repair welding.",
journal = "Welding in the World",
title = "Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station",
pages = "352-347",
number = "SPEC. ISS.",
volume = "52",
url = "https://hdl.handle.net/21.15107/rcub_rims_79"
}

Odanović, Z., Grabulov, V., Momčilović, S., Tasić, B., Đurđević, M.,& Arsić, M.. (2008). Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station. in Welding in the World, 52(SPEC. ISS.), 347-352.
https://hdl.handle.net/21.15107/rcub_rims_79

Odanović Z, Grabulov V, Momčilović S, Tasić B, Đurđević M, Arsić M. Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station. in Welding in the World. 2008;52(SPEC. ISS.):347-352.
https://hdl.handle.net/21.15107/rcub_rims_79 .

Odanović, Zoran, Grabulov, Vencislav, Momčilović, Saša, Tasić, Boban, Đurđević, M., Arsić, Miodrag, "Investigation of the optimal parameters for repair welding of the coal mill in the fossil power station" in Welding in the World, 52, no. SPEC. ISS. (2008):347-352,
https://hdl.handle.net/21.15107/rcub_rims_79 .

TY  - JOUR
AU  - Grabulov, Vencislav
AU  - Odanović, Zoran
AU  - Katavić, Boris
AU  - Momčilović, Saša
AU  - Tasić, Boban
PY  - 2008
UR  - http://rims.institutims.rs/handle/123456789/77
AB  - U ovom radu prikazano je istraživanje u cilju određivanja optimalnih parametara reparaturnog navarivanja diska radnog kola mlina za ugalj u termoelektrani, koji je oštećen abrazijom. Reparatura je izvedena na radnom kolu, bez njegove demontaže na sastavne delove kao što su disk, prsten i udarne ploče. Prečnik radnog kola je θ 4100 mm, a težina 23 tone. Odlivak diska radnog kola je izrađen od čelika GS17CrMo55, koji spada u grupu uslovno zavarljivih čelika, koji mogu uspešno da se zavaruju uz primenu posebnih dodatnih materijala, predgrevanja i drugih mera predostrožnosti. Iz tih razloga izvršena je anlitička procena zavarljivosti, ispitivanja na osnovu tehnoloških proba i izvedeno nekoliko serija probnih navarivanja CrMo čeličnog liva sa različitim uslovima navarivanja i termičke obrade. Na osnovu ovih ispitivanja izvedena je analiza uticaja primene različitih postupaka i uslova navarivanja, dodatnih materijala, kao i različitih uslova termičke obrade pre i posle zavarivanja na strukturno - mehaničke osobine CrMo liva. Rezultati analize omogućili su izbor optimalnih parametara navarivanja i izvođenje reparaturnog navarivanja diska radnog kola mlina za ugalj. Rezultati merenja tvrdoće i IBR-a potvrdila su zadovoljavajući kvalitet reparaturnog navarivanja diska.
AB  - In the paper the details of the investigation of the optimal parameters for repair welding of abrasive damaged working wheel of the coal mill are presented. Repair was performed without disassemble of the wheel. Diameter of the wheel was θ 4100 mm, and a weight was approximately 23 tons. The wheel was made of the cast steel GS17CrMo55. As the weld ability of this steel is limited, weld ability analysis of the base material by the analytical equations was performed and a series of trial welds with different welding and thermal conditions were done. The effects of the different welding processes and parameters, different filler materials and different preheating and post weld heat treatment conditions on hardness and macro and micro structure were analyzed. The Y probe was used for sensitivity testing to crack forming. Based on obtained results, the optimal welding parameters were selected, and the repair welding of the wheel was performed. Hardness measurement and NDT testing were verified quality of the applied repair welding.
PB  - DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd
T2  - Zavarivanje i zavarene konstrukcije
T1  - Reparaturno zavarivanje diska radnog kola mlina za ugalj od Cr-Mo čelika
T1  - Repair welding of the coal mill disk made of Cr-Mo steel
EP  - 157
IS  - 4
SP  - 147
VL  - 53
UR  - https://hdl.handle.net/21.15107/rcub_rims_77
ER  - 

@article{
author = "Grabulov, Vencislav and Odanović, Zoran and Katavić, Boris and Momčilović, Saša and Tasić, Boban",
year = "2008",
abstract = "U ovom radu prikazano je istraživanje u cilju određivanja optimalnih parametara reparaturnog navarivanja diska radnog kola mlina za ugalj u termoelektrani, koji je oštećen abrazijom. Reparatura je izvedena na radnom kolu, bez njegove demontaže na sastavne delove kao što su disk, prsten i udarne ploče. Prečnik radnog kola je θ 4100 mm, a težina 23 tone. Odlivak diska radnog kola je izrađen od čelika GS17CrMo55, koji spada u grupu uslovno zavarljivih čelika, koji mogu uspešno da se zavaruju uz primenu posebnih dodatnih materijala, predgrevanja i drugih mera predostrožnosti. Iz tih razloga izvršena je anlitička procena zavarljivosti, ispitivanja na osnovu tehnoloških proba i izvedeno nekoliko serija probnih navarivanja CrMo čeličnog liva sa različitim uslovima navarivanja i termičke obrade. Na osnovu ovih ispitivanja izvedena je analiza uticaja primene različitih postupaka i uslova navarivanja, dodatnih materijala, kao i različitih uslova termičke obrade pre i posle zavarivanja na strukturno - mehaničke osobine CrMo liva. Rezultati analize omogućili su izbor optimalnih parametara navarivanja i izvođenje reparaturnog navarivanja diska radnog kola mlina za ugalj. Rezultati merenja tvrdoće i IBR-a potvrdila su zadovoljavajući kvalitet reparaturnog navarivanja diska., In the paper the details of the investigation of the optimal parameters for repair welding of abrasive damaged working wheel of the coal mill are presented. Repair was performed without disassemble of the wheel. Diameter of the wheel was θ 4100 mm, and a weight was approximately 23 tons. The wheel was made of the cast steel GS17CrMo55. As the weld ability of this steel is limited, weld ability analysis of the base material by the analytical equations was performed and a series of trial welds with different welding and thermal conditions were done. The effects of the different welding processes and parameters, different filler materials and different preheating and post weld heat treatment conditions on hardness and macro and micro structure were analyzed. The Y probe was used for sensitivity testing to crack forming. Based on obtained results, the optimal welding parameters were selected, and the repair welding of the wheel was performed. Hardness measurement and NDT testing were verified quality of the applied repair welding.",
publisher = "DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd",
journal = "Zavarivanje i zavarene konstrukcije",
title = "Reparaturno zavarivanje diska radnog kola mlina za ugalj od Cr-Mo čelika, Repair welding of the coal mill disk made of Cr-Mo steel",
pages = "157-147",
number = "4",
volume = "53",
url = "https://hdl.handle.net/21.15107/rcub_rims_77"
}

Grabulov, V., Odanović, Z., Katavić, B., Momčilović, S.,& Tasić, B.. (2008). Reparaturno zavarivanje diska radnog kola mlina za ugalj od Cr-Mo čelika. in Zavarivanje i zavarene konstrukcije
DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd., 53(4), 147-157.
https://hdl.handle.net/21.15107/rcub_rims_77

Grabulov V, Odanović Z, Katavić B, Momčilović S, Tasić B. Reparaturno zavarivanje diska radnog kola mlina za ugalj od Cr-Mo čelika. in Zavarivanje i zavarene konstrukcije. 2008;53(4):147-157.
https://hdl.handle.net/21.15107/rcub_rims_77 .

Grabulov, Vencislav, Odanović, Zoran, Katavić, Boris, Momčilović, Saša, Tasić, Boban, "Reparaturno zavarivanje diska radnog kola mlina za ugalj od Cr-Mo čelika" in Zavarivanje i zavarene konstrukcije, 53, no. 4 (2008):147-157,
https://hdl.handle.net/21.15107/rcub_rims_77 .