| Course title | Surface Treatments Technology |
|---|---|
| Course code | UCHTML/C177 |
| Organizational form of instruction | Lecture + Seminary |
| Level of course | Master |
| Year of study | 2 |
| Semester | Winter |
| Number of ECTS credits | 6 |
| Language of instruction | Czech |
| Status of course | Compulsory-optional |
| Form of instruction | Face-to-face |
| Work placements | This is not an internship |
| Recommended optional programme components | None |
| Lecturer(s) |
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| Course content |
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Metal surfaces properties in terms of cleaning, treating and working coats. Metal pickling, hydrogen brittleness development theory, pickling of zinc, steel and aluminium and other metals, alkaline cleaning, pickling in acid baths, electrochemical pickling, flushing, liquid transmission modes. Mechanical cleaning of metals. Shot blasting, shot blasting device, mechanical cleaning methods and shot-blasting materials, tumble polishing, trimming. Degreasing. Degreasing theory, wettability, peptization coagulation, flotation flocculation, degreasing in alkaline baths, emulsion degreasing, degreasing in solvents and in solvents vapours. Conversion and metal coatings producing and enamel production. Passivating film effect on coating, chromating, phosphate coating, silicate coating, oxide coating, diffusion process in surface treatments. Hot-galvanizing, aluminizing, allitation, diffusion sulphurizing, sulfonisation, sulfonitridation. Coats formed in vacuum, coatings properties and impact on organic coats. Surface, wood, plastics and mineral base pretreatment. Application of coating compositions by pneumatic, high-pressure and electrostatic spraying. Atomization of particles during spraying, pressure reservoirs, air cleaning, pressure regulation, filtration. Roller coating, coil-coating, materials for coil-coating, thermosets, thermoplastics, laminates, age-hardening and burning, application in drums. Coating, flow-coating, dip coating, application of coating compositions by printing techniques. Powder coating compositions electrostatic application, application in electrostatic field, triboelectric application, fluid application, rotary and cupping coating machines. Electrostatic application of coating compositions in liquid form, pneumatic, centrifugal, slot, combined rotating technology, ecological viewpoint. Coating compositions electrophoretic application, electrochemical process theory, chemism, bath preparation, coatings separation, burning, bath finish and process specifications on bath and background material quality. Film production method by physical, chemical and physical-mechanical mechanism (convex, UV, IST, EBC age-hardening). Technological process organization in surface treatment departments. Coating systems and surface pre-treatment and treatment technologies design for specific cases. Seminar schedule: Surface pretreatments production capacity calculations, production equipment characteristics calculation and calculation of capacity and electric current. Calculation of the size of surface-treated objects. Calculation of overhead conveyor capacity. Hinges design and construction. Rinse water consumption calculation. Exhaustion factor calculation. Calculation of heat loss during bath warming, heating elements for steam heating calculation, vapour consumption calculation, heating surfaces calculations. Heating element calculation. Calculation of heating element for electric heating, calculation of productive capacity in electrolytic process. Gas heating characteristics calculation, atmospheric burners calculation. Proposal of metal products surface pre-treatment and final treatment technological process draw-up. Proposal of wooden products surface pretreatments and final treatments technological process draw-up.
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| Learning activities and teaching methods |
| Monologic (reading, lecture, briefing) |
| Learning outcomes |
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The subject links to the Technology of paint matters. Issues regarding surface pretreatment methods - physical or chemical - are discussed and organic surfaces application and preparation technologies are explained. Attention to design of coating compositions for various real environments is paid too. An excursion to external coatings manufacturing equipment is organized during semester. Student will be acquainted with techniques of material surface coatings, but especially with organic coatings application technologies.
Student will not only be able to design coating compositions, but also apply them on various materials using various technologies. |
| Prerequisites |
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Knowledge of organic chemistry and chemical engeneering.
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| Assessment methods and criteria |
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Oral examination, Written examination
There is an oral examination. Primary form of exam is the debate about selected themes. Level of acquired knowledge, conceptions and application acquirements is examined. Knowledge is examined by test during semester and its result is included into total classification. |
| Recommended literature |
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| Study plans that include the course |
| Faculty | Study plan (Version) | Category of Branch/Specialization | Recommended semester | |
|---|---|---|---|---|
| Faculty: Faculty of Chemical Technology | Study plan (Version): Organic Coatings and Paints (2016) | Category: Engineering chemistry and chemistry of silicates | 2 | Recommended year of study:2, Recommended semester: Winter |
| Faculty: Faculty of Chemical Technology | Study plan (Version): Chemistry and Technology of Paper and Pulp (2015) | Category: Engineering chemistry and chemistry of silicates | 2 | Recommended year of study:2, Recommended semester: Winter |
| Faculty: Faculty of Chemical Technology | Study plan (Version): Organic Coatings and Paints (2015) | Category: Engineering chemistry and chemistry of silicates | 2 | Recommended year of study:2, Recommended semester: Winter |
| Faculty: Faculty of Chemical Technology | Study plan (Version): Chemistry and Technology of Paper and Pulp (2016) | Category: Engineering chemistry and chemistry of silicates | 2 | Recommended year of study:2, Recommended semester: Winter |
| Faculty: Faculty of Chemical Technology | Study plan (Version): Chemistry and Technology of Paper and Pulp (2013) | Category: Engineering chemistry and chemistry of silicates | 2 | Recommended year of study:2, Recommended semester: Winter |
| Faculty: Faculty of Chemical Technology | Study plan (Version): Organic Coatings and Paints (2013) | Category: Engineering chemistry and chemistry of silicates | 2 | Recommended year of study:2, Recommended semester: Winter |