Investigation of carriers of lustrous carbon at high temperatures

• Autorzy: Holtzer M. , Bobrowski A. , Grabowska B. , Schindler A. , Hodor K.
• Języki publikacji: EN

Abstrakty

EN

Lustrous carbon is very important in processes of iron casting in green sand. Lustrous carbon (pirografit) is a microcrystalline carbon form, which evolves from a gaseous phase. In the case of applying additions, generating lustrous carbon, for sands with bentonite, there is always a danger of emitting – due to a high temperature of liquid cast iron and a humidity-compounds hazardous for a human health. There can be: CO, SO₂, benzene, toluene, ethylbenzene, xylene (the so-called: BTEX) as well as polycyclic aromatic hydrocarbons (PAHs). In order to asses the selected mixtures: bentonite – carrier of lustrous carbon, in which a coal dust fraction was limited, the thermogravimetric analysis and the analysis of evolving gases were performed. Examinations were carried out in the Applications Laboratory NITZSCH-Gerätebau GmbH, Selb/Bavaria, Germany. The NETZSCH model STA 449 F3 Jupiter^® simultaneous thermal analyzer was used to measure the mass change and transformation energetics of materials. The system employed for this work was equipped with an SiC furnace capable of operation from 25 to 1550 °C. The mass spectrometer of the QMS 403 allows detection of mass numbers between 1 and 300 amu (atomic mass unit).

Słowa kluczowe

EN

green sand; lustrous carbon carriers; BTEX

PL

masa formierska; nośniki węgla błyszczącego; BTEX

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 1 spec.
• Strony: 225--232
• Opis fizyczny: Bibliogr. 13 poz., rys., wykr.

Twórcy

autor

Holtzer M.

• Faculty of Foundry Engineering, AGH University of Science and Technology , Reymonta 23 Str., 30-059 Cracow, Poland

autor

Bobrowski A.

• Faculty of Foundry Engineering, AGH University of Science and Technology , Reymonta 23 Str., 30-059 Cracow, Poland

autor

Grabowska B.

• Faculty of Foundry Engineering, AGH University of Science and Technology , Reymonta 23 Str., 30-059 Cracow, Poland

autor

Schindler A.

• Netzsch-Gerätebau GmbH Applications Laboratory

autor

Hodor K.

• Netzsch-Poland, Sales and Applications Manager

Bibliografia

• [1] Baier D., Schmidt F.: Namorit – nowy rodzaj bentonitu do klasycznych mas formierskich, Przegląd Odlewnictwa No 6, 2004, pp. 497-505.
• [2] Lewandowski J.L.: Wpływ pyłu węgla kamiennego na toksyczność masy klasycznej, Przegląd Odlewnictwa No 10, 1998, pp. 322-325.
• [3] Bobrowski A.: Charakterystyka pyłów z suchego odpylania stacji przerobu mas z bentonitem w aspekcie ich użytkowego wykorzystania, Doctor thesis, Kraków 2009.
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• [6] Moore A., Brown A.: Coal dust In greensand – New look at a very old practice, Proc. Mater. The 66th World Foundry Congress, 6-9 September 2004, Istambul, pp. 575-586.
• [7] Lewandowski J.L.: Nośniki węgla błyszczącego, Przegląd Odlewnictwa No 10, 2000, pp. 384-386.
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• [11] Brümmer G.: Nachweis und Steuerung des Gehalts an pyrolisierbaren Kohlenstoffverbindungen im bentonitgebundenen Formstoffen, Giesserei-Praxis No 5, 2002, pp. 172-180.
• [12] Grefhorst C.: Einfluss von Zusatzstoffen auf den bentonitgebundenen Formstoff, Giesserei-Erfahrungsaustausch No 11, 2002, pp. 483-487.
• [13] LaFey V.S., Neltner S.L., Grefhorst C.: Future Performance Expectations for Foundry Bentonite. AFS Transactions 2009, v. 117, pp. 807–823.