652-1903/03 – Molding Sands and Binding systems (FSPS)
| Gurantor department | Department of Metallurgical Technologies | Credits | 10 |
| Subject guarantor | doc. Ing. Petr Lichý, Ph.D. | Subject version guarantor | doc. Ing. Petr Lichý, Ph.D. |
| Study level | postgraduate | Requirement | Choice-compulsory type B |
| Year | | Semester | winter + summer |
| | Study language | English |
| Year of introduction | 2022/2023 | Year of cancellation | |
| Intended for the faculties | FMT | Intended for study types | Doctoral |
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
Experimental work in labs
Field trip
Teaching by an expert (lecture or tutorial)
Summary
The subject is focused on the area - 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. The principles of physical bonding, the V-method, the EFF-SET
process. The interaction of mould vers. Metal, defects in castings – effect of
mould and of cores. The gaseous regime of a foundry mould, burning-in of
castings. The lustrous carbon and its role at formation of the surface of a
casting.
Compulsory literature:
Recommended literature:
Additional study materials
Way of continuous check of knowledge in the course of semester
Ústní zkouška s písemnou přípravou, součástí hodnocení je předchozí odevzdání projektu na zvolené téma.
E-learning
Other requirements
Elaboration of project.
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.