Recovery and Surface Treatment (FSI-HPU)

Academic year 2022/2023
Supervisor: doc. Ing. Zdeněk Lidmila, CSc.  
Supervising institute: ÚST all courses guaranted by this institute
Teaching language: Czech
Aims of the course unit:
The main objective of the course is to provide students with the theoretical foundations and methodology necessary for solving technologies of renovations and surface treatment. Students will acquire knowledge necessary for a creative and complex solution of renovations and surface treatment.
Learning outcomes and competences:
The students will acquire knowledge of all types of modern technology cladding and surface treatment. They will be able to apply these technologies to the machine construction manufacturing.
Prerequisites:
Basic welding technologies - flame, arc welding, plasma, laser. Thermally and deformation field, weldability of materials, inorganic chemistry, corrosion.
Course contents:
The course Recovery and Surface Treatment is important for technologists and designers. It is based on the technology of:
- weld cladding: arc welding, flame welding, plasma and laser welding, inclusive of special techniques,
- thermal spraying by: arc, flame, plasma, high velocity methods (HVOF),
- surface treatment: surface theory, oxidation methods (eloxal process), electroplating Cu, Cr, Ni, Zn, etc., chemical layers, PVD,CVD, organic coatings,
- bonding, cementation, adhesive, dispersion hardening.
All technologies will be accompanied with an overview of auxiliary materials, typical examples and industrial applications.
Teaching methods and criteria:
The course is taught through lectures explaining the basic principles and theory of the discipline. Teaching is suplemented by practical laboratory work.
Assesment methods and criteria linked to learning outcomes:
The final exam will be composed of written and oral part. It is classificated to the ECTS grading scale.
Controlled participation in lessons:
Attendance at exercises is compulsory. Absence may be compensated for by the agreement with the teacher who can set a special programme to be worked out.
Type of course unit:
    Lecture  13 × 2 hrs. optionally                  
    Laboratory exercise  13 × 2 hrs. compulsory                  
Course curriculum:
    Lecture

1)Importance of renovation and surface treatment, surface theory, degreasing
2)Hard surfacing by flame, plasma, electric arc
3)Hard surfacing by electric contacts, vibration, microsurfacing
4)Thermal spraying, basic technology, coat structure, properties
5)Thermal spraying by plasma, flame, consumables
6)Thermal spraying electric arc and high-velocity flame spraying, applications
7)Adhesive bonding, joints, hardening
8)Cementation, importance, materials, slide paint
9)Coatings deposited from liquid, galvanic
10)Coatings deposited oxidation , melt metal coating
11) Pickling, polishing, enameling, diffuse saturation
12)Organic layers, paint
13)Summary of applications labs and studios

    Laboratory exercise

1)Adaptation of surfaces, selection of consumables, renovation procedure
2)Economic evaluation of renovation, calculation of costs
3)Demonstration of flame and arc cladding
4)Excursion - thermal spraying shop
5)Demonstration of the thermal spraying coatings, Project renovation process setting
6)Calculation of the strength of adhesive bonding joints
7)Demonstration of the adhesive bonding and cementing
8)Excursion - galvanizing shop
9)Working in laboratory for surface treatment and hot-dip galvanizing shop
10)Working in laboratory for surface treatment, enamelling 
11)Proposing surface treatment by zinc dipping
12)Proposing surface treatment by organic layers
13)Course-unit credit awarding
Literature - fundamental:
1. ASM H.C.: METALS HANDBOOK, ed.9, volume 5, surfac., clean, finish., and coating
2. KOLEKTIV AUTORŮ. Technologie svařování a zařízení. 1.vyd. ZEROSS v Ostravě v edici Svařování, Ostrava, srpen 2001, 395 s. ISBN 80-85771-81-0.
3. Ambrož O.,Kašpar J.: Žárové nástřiky a jejich průmyslové využití , SNTL Praha , 1990, ISBN 80-03-00347-4
Literature - recommended:
4. Kovačič L.: Lepenie kovov a plastov
5. Mohyla M. : Technologie povrchových úprav kovů
6. Sedláček V.: Povrchy a povlaky kovů
The study programmes with the given course:
Programme Study form Branch Spec. Final classification   Course-unit credits     Obligation     Level     Year     Semester  
CŽV full-time study CZV Bases of Mechanical Engineering -- Cr,Ex 5 Compulsory 1 1 S
N-STG-P full-time study STM Manufacturing Technology and Management in Industry -- Cr,Ex 5 Compulsory 2 1 S
N-STG-P full-time study MTS Modern Technologies of Lighting Systems -- Cr,Ex 5 Compulsory 2 1 S
N-STG-P full-time study STG Manufacturing Technology -- Cr,Ex 5 Compulsory 2 1 S