Dopak Sp. z o.o. » Driving license for an injection molding machine

The world’s only driving license for an injection molding machine

The only courses in Poland for users of injection molding machines conducted on the basis of a license from the German company Schulungszentrum, which has 40 years of experience in the field of injection molding technology.

A precisely designed training program allows you to gain extensive and comprehensive knowledge. The training schedule provides for 5 levels of education, culminating in an exam.

After completing the entire training cycle, participants have advanced knowledge of injection molding technology, which is confirmed by obtaining a driving license for an injection molding machine.

Target groups:

  • Production employees: injection molding machine operator, injection process setter, production preparation worker, shift manager, QA quality controller, plastics and rubber mechanic
  • Employees from the tool production department: detail designers, mold designers, toolmakers
  • Sales, project management and procurement employees

Injection molding – course 1

Program:

  • Construction, structure and molding of plastics
  • Thermoplastics, thermosets, elastomers – Trade names – Material data, processing data
  • Properties of plastics, especially thermoplastics from ABS to PBT
  • Thermoplastic elastomers
  • Advantages of TPE over elastomers
  • Why should I dry? How should I dry?
  • What is the dew point in the drying process?
  • Dryer types – from simple drying to perfect drying.
  • Conditioning of polyamide products
  • Sequence of functions of the injection molding machine, advantages and disadvantages of hydraulic and electric injection molding machines
  • How is a good homogeneity of a plasticized mass achieved?
  • Plasticization process with a 3-zone thermoplastic screw
  • Why is back pressure important where the back pressure works?
  • How is the injection speed determined?
  • What should you pay attention to during the injection molding process?
  • Why are injection speed profiles necessary?
  • How to determine the pressing time?
  • How to determine the optimal cooling time?
  • PVT diagram for amorphous and partially crystalline materials
  • How to minimize surface defects on moldings?
  • Clamping force calculation; what is the mean internal pressure of the mold?
  • Construction of the injection mold
  • When should you build a three-plate mold, partial hotrunner, hotrunner? Advantages and disadvantages
  • How to assess and correct defects in moldings: 1. traces of collapse; 2. weld line; 3. streaks of moisture; 4. streaks of burn; 5. demolding problems … etc. Disadvantages of moldings from No. 1 to No. 9
  • Explanation and discussion of practical exercises on injection molding machine No. 1 and No. 2.
  • Disadvantages of moldings 1 to 12

Injection molding – course 2

Program:

  • Revision of the material from the course 1
  • Technical thermoplastics
  • Thermoplastic elastomers, types of TPEs
  • High temperature plastics such as PTFE, PEEK etc.
  • Plasticizing units, high performance
  • How to correctly optimize the cycle time?
  • Air flow in individual injection molds
  • Calculation of clamping force for production calculation
  • Which parameters should be set on the injection molding machine to ensure optimal quality?
  • How do stacked forms work?
  • Which injection points are required for the individual parts?
  • How does a multi-component injection machine work?
  • What are the types of multi-component injection molds?
  • How do cube single and double injection molds work?
  • Moisture meter, viscometer
  • Selection of robots, dryers and calculation of the volume of the dryer hopper
  • What parameters of the injection molding machine can affect shrinkage?
  • How to distinguish between effective and ineffective temperature control devices?
  • Central feeding and drying systems for material
  • Overview and preparation of practical exercises on the injection molding machine No. 3 and 4.
  • Identification and solving of problems related to defects in moldings no. 12-24

Injection molding – course 3

Program:

  • Revision of the material: Course 1 – 2
  • Organization of production at injection molding
  • Supply of materials and quality control
  • What’s special about the molds that are made in China?
  • Regulated and non-regulated processes
  • How to calculate the peripheral speed of a screw?
  • Friction when plasticizing
  • Types of injection nozzles
  • Classification of errors and characteristics
  • What is sandwich technology?
  • Advantages of sandwich technology
  • Gas injection functions
  • Advantages of water injection
  • Mold temperature control with rotameters
  • Pressure losses in water lines
  • Redundant material supply
  • Optimal staining – Which devices are the best?
  • Discussion of the defects of moldings from No. 24 to No. 36
  • Practical exercises on the injection molding machine No. 5 and 6
  • How can you save a few seconds per cycle?

Injection molding – course 4

Program:

  • Revision of the material: Course 1 – 3
  • Optimal injection molding protocol
  • Special properties of fillers and reinforcing substances
  • Pressure measurement in the form and how to interpret the obtained curves?
  • Advantages of measuring internal pressure in the mold
  • Sensors useful for Industry 4.0
  • Injection molding liquid silicone
  • Injection molding with a chemical blowing agent and a physical blowing agent
  • MuCell technology
  • Technology of tandem forms
  • Finishing surfaces of plastic details using Inmoldlabel technology (IML) and foil decoration (IMD)
  • Fabric overmoulding techniques
  • Manufacture of galvanized plastic parts
  • What is extrusion injection molding for?
  • Calculation of the hourly rate of machine work
  • How is the price of molded parts calculated?
  • Perfect cycle optimization in 1/10 second
  • Disadvantages of moldings no. 31 to 35
  • Preparation and protocol of practical exercises from No. 1 to No. 7
  • Preparation for the exam
  • Overview of 400 exam questions

Injection molding – course 5

Program:

  • Revision of the material: Course 1 – 4
  • How to get the best color effect of the moldings?
  • Volumetric and gravimetric dispensers
  • Types of thermoplastic elastomers
  • Processing of biodegradable plastics
  • Treatment of cooling water in an injection molding plant
  • Overview of 400 exam questions
  • Overview of practical exercises on the injection molding machine from 1 to 7
  • General preparation for the exam
  • Assessment of seven practical exercises
  • Oral exam
  • Written exam
  • Examination results announcement

If you have additional questions about courses and the will to learn about the offer, please contact us via the form below or at: trainings@dopak.pl

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