Course detail
Plastics in Mechanical Engineering
FSI-FPA-K Acad. year: 2023/2024 Summer semester
Classification of plastics from the view of physical, mechanical, thermal and other properties, fundamental processing, injection moulding, influence of processing parameters of final properties of products made of plastics. Plastics processing techniques, designing plastic processing, mould design, esp. injection moulding tools. Extrusion and processes that follow it such as compression, forming and welding of plastics.
Language of instruction
Czech
Number of ECTS credits
3
Supervisor
Department
Entry knowledge
Basic knowledge of chemistry and a grasp of plastics and production technology
Rules for evaluation and completion of the course
Course-unit credit is awarded on the following conditions: attendance at seminars, completing of a mould design of a specific part including calculation of basic process parameters of the injection moulding. Examination: Exam is oral and tests the knowledge of the three basic areas of the subject: 1. Principal properties of plastics for processing and operation. 2. Injection moulding, machines and moulds. 3. Other technologies of plastics processing. It is classificated to the ECTS grading scale
Attendance in lectures is recommended. Attendance in exercises is compulsory. The attendance to the seminar is regularly checked and the participation in the lesson is recorded. Absence may be in justified cases compensated for by the agreement with the teacher via working out a special programme.
Aims
The aim of the course is to familiarise students with basic technologies of plastics processing, and to provide them with information about the principles applied for construction of machines and tools necessary for the production.
The subject "Plastics Processing Technology " provides students with basic information describing the structure of plastics and their properties from the point of view of physics, rheology and processing. Also dealt with are the essential processes and basic applications in various areas of life and industry.
The study programmes with the given course
Programme B-STR-K: Engineering, Bachelor's
specialization STG: Manufacturing Technology, compulsory-optional
Type of course unit
Guided consultation in combined form of studies
13 hours, compulsory
Syllabus
1. Classification of plastics, their application and properties.
2. Physical, mechanical, thermal and rheological properties of plastics.
3. Processing of plastics – overview.
4. Injection moulding, injection pressure – course.
5. Injection moulding machines, plastification unit and clamping unit, machine control.
6. Moulds for injection moulding, their overview, set of mouldings.
7. Gating system.
8. Tempering and ejector system.
9. Compression moulding of thermosets.
10. Extrusion.
11. Blow moulding of plastics.
12. Forming and working of plastics.
13. Plastics welding.
Guided consultation
34 hours, optionally
Syllabus
1. Mould design in principle.
2. Design of gating.
3. Design of ejecting.
4. Design of mould tempering.
5. Mould design with the use of standard parts.
6. Mould design with the use of standard parts.
Laboratory exercise
5 hours, compulsory
Syllabus
1. Specification of plastic for selected part.
2. Part design.
3. Machine specification.
4. Set of mouldings determination.
5. Optimization of process parameters.
6. Moulding shop excursion.
7. Course-unit credits.