618-1413/01 – Molding Materials (FM)
| Gurantor department | Department of Metallurgy and Foundry | Credits | 6 |
| Subject guarantor | doc. Ing. Vlasta Bednářová, CSc. | Subject version guarantor | prof. Ing. Petr Jelínek, CSc. |
| Study level | undergraduate or graduate | | |
| | Study language | Czech |
| Year of introduction | 2012/2013 | Year of cancellation | 2020/2021 |
| Intended for the faculties | FMT | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
Student will able:
to know the rules for using quartz and non-quartz base sands;
to know processes of the cooling effect control of a foundry mould;
to explain kinds and importance of base sands surfaces and principles of their
measurements;
to know types and means for reclamation of foundry base sands;
to analyze physical and chemical nature of binding property and strength of moulding
mixtures;
to explain principles of classification of binder systems of the Ist up to IVth generation;
to design a binder system for the given technological process of casting manufacture;
to explain physical principles of binding the mixtures of the IIIrd generation;
to describe chemical hardening processes of inorganic and organic binders
(condensation, polymerization, addition, copolymerization).
Teaching methods
Lectures
Tutorials
Experimental work in labs
Summary
Evaluation of quality of the artificial and the natural opening materials.
Regeneration, quality of regenerate. Natural sand sorts. The inorganic and
organic bonding agents. The interaction of bonding agent vers opening
material.
The activation of opening material, the CO2-process, the SO2-process, the Hot-
Box and the Cold-Box route. The method of full mould. The special technology
of
preparation of moulds and cores for artistic castings. The plaster moulds
(hardened mixtures), the investment pattern, the organic bentonites, cement
mixtures, the Shaw-method, the silicon-rubber method, the LOST FOAM, the
Replicast.
Compulsory literature:
ILER, R. K. Chemistry of silica, New York 1968
Recommended literature:
LEWANDOWSKI, J., L. Materialy formierskie, Panstwowe wydawnictwo naukowe, Warszawa, 1971,
Way of continuous check of knowledge in the course of semester
Two scores semester work and advocacy through seminars during lessons
Two progress tests scores
E-learning
http://www.fmmi.vsb.cz/cs/okruhy/studium-a-vyuka/podklady-ke-studiu
Other requirements
There are not additional requirements.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Evaluation of the quality synthetic and natural sand.
Regeneration, the quality of regenerate.
Natural sands. Inorganic and organic binder.
Interaction binder-sand.
Activation of grog.
Process of CO2, SO2-process, Hot Box, Cold Box.
The fully forms.
Special technology of molds and cores art castings.
Plaster molds
(hard mix), Lost Foam, organobentonity, cement mixture,
Shaw-method, silicone-rubber-method, Lost Foam, Replicast.
Conditions for subject completion
Conditions for completion are defined only for particular subject version and form of study
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction