Influence of the hardener type on the sulfur diffusion from moulding sand to the casting surface

• Autorzy: Hosadyna M. , Dobosz S. M. , Major-Gabryś K.
• Języki publikacji: EN

Abstrakty

EN

The article is discussing authors examinations concerning the influence of the sulphur diffusion from moulding sand on reduction the efficiency of modifier elements in the process of making the nodular cast iron. In case of magnesium decrease of its content is observe, as a result of forming the magnesium sulphide. In consequence the participation of magnesium is falling below the concentration essential to create a spheroid graphite. The source of sulphur in no-bake sand with resin modified by furfuryl alcohol is a hardener, on the basis of sulphonic acids and sulphuric acid. Described examinations relate to no-bake sands made on the warp of fresh quartz sand.

Słowa kluczowe

EN

moulding sand; sulphur diffusion; nodular cast iron

PL

masa formierska; dyfuzja siarki; żeliwo sferoidalne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 2 spec.
• Strony: 87--92
• Opis fizyczny: Bibliogr. 9 poz., rys., tab., wykr.

Twórcy

autor

Hosadyna M.

• HŰTTENES-ALBERTUS Sp. z o.o., ul. Turystyczna 7, 20-207 Lublin, Poland

autor

Dobosz S. M.

• Department of Moulding Materials, Mould Technology and Foundry of Non-ferrous Metals, Faculty of Foundry Engineering, AGH University of Science and Technology, ul. Reymonta 23, 30-059 Krakow, Poland

autor

Major-Gabryś K.

• Department of Moulding Materials, Mould Technology and Foundry of Non-ferrous Metals, Faculty of Foundry Engineering, AGH University of Science and Technology, ul. Reymonta 23, 30-059 Krakow, Poland

Bibliografia

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• [2] Baier J., Köppen M., Casting defects. IKO – Erbslöh (1994).
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• [5] Linke T., Sluis J.R., The influence of coatings on the graphite structure in the rim-zone of ductile iron castings. 60th World Foundry Congress, The Netherlands (1993).
• [6] Riposan I., Chisamera M., Stan S., Skaland T., Surface Graphite Degeneration in Ductile Iron Castings for Resin Molds. Tsinghua Science and Technology (2008) 157-163.
• [7] Holtzer M., Zych J., Retel K., Influence of interaction of the mould and liquid cast iron on the quality of the casting surface. Foundry Journal vol. 6 (1996) 129-134 (in Polish).
• [8] Hosadyna M., Dobosz St. M., Jelinek P., The diffusion of sulphur from moulding sand to cast and methods of its elimination, Archives of Foundry Engineering, vol. 9, issue 4 (2009) 73-76.
• [9] Hosadyna M., Dobosz St.M., Kusiński J., Quality of the reclamation sand and the casting surface structure. Archives of Foundry Engineering – in the press.