618-1803/01 – Molding Sands and Mixtures (FS)
| Gurantor department | Department of Metallurgy and Foundry | Credits | 5 |
| Subject guarantor | doc. Ing. Vlasta Bednářová, CSc. | Subject version guarantor | prof. Ing. Petr Jelínek, CSc. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 1 | Semester | summer |
| | Study language | Czech |
| Year of introduction | 2012/2013 | Year of cancellation | 2020/2021 |
| Intended for the faculties | FMT | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
Student will be 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
Opening materials of the sand mixtures, quartz and non-silica opening
materials, granulometric composition, activation of the opening materials,
regeneration. The bonding-agent systems I. to IV., generation, chemical
treatment in preparation of moulds and cores. Mixtures with alkaline
silicates,
application of macromolecular chemistry in the bonding-agent systems.
Compulsory literature:
Recommended literature:
LEWANDOWSKI, J., L. Tworzywa na formy odlewnicze "Akapit" Kraów, 1997, ISBN 83-7108-21-2
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
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
Předmět neobsahuje žádné hodnocení.