Harmfulness of moulding sands with bentonite and lustrous carbon carriers

Harmfulness of moulding sands with bentonite and lustrous carbon carriers

Procedures have been developed to determine the volume, rate and composition (particularly BTEX: benzene, toluene, ethylbenzene and xylenes and PAHs (polycyclic aromatic hydrocarbons)) of gas evolution from moulds and cores prepared with various binders as a means of harmfulness of moulding sands. T...

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Bibliographic Details
Main Authors: M. Holtzer, B. Grabowska, S. Żymankowska-Kumon, D. Kwaśniewska-Królikowska, R. Dańko, W. Solarski, A. Bobrowski
Format: Article
Language:English
Published: Croatian Metallurgical Society 2012-10-01
Series:Metalurgija
Subjects:
moulding sand
castings
bentonite
foundry
Online Access:http://hrcak.srce.hr/file/123364
Description
Summary:Procedures have been developed to determine the volume, rate and composition (particularly BTEX: benzene, toluene, ethylbenzene and xylenes and PAHs (polycyclic aromatic hydrocarbons)) of gas evolution from moulds and cores prepared with various binders as a means of harmfulness of moulding sands. The rate of gas evolution from green sands with four different lustrous carbon carrier and BTEX content were determined. The gas evolution rates are highest in the range of about 20 to 30 s after contact with molten metal. In practice during the first 200-250 s the total emission of gases generated in investigated samples occurred. The main emitted component from the BTEX group was benzene.
ISSN:0543-5846
1334-2576

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