Injection moulding pilots

Converting trials

4 cavity tool with two different hinge design closure with 2 different inlet (2x2)

All 4 cavities with different surfaces

• One cavity high polished
• One sandblasted
• Two with emery

Cap for 28 mm neck finish PCO1810

Double seal system (“Bericap design”)

Husky/Scöttli 2-cavity mould

Operations

• Processing trials on High Performance Netstal HP1200 Injection moulding Machine
• High melt screw 24D
• Max injection pressure 2100 Bar
• Tests at industrial relevant conditions

Materials

• PP homo/Raco/Heco
• HDPE for carbonized /non-carbonized beverage
• Elastomers
• Compounds

Processing trials/results

Material evaluations

• Material selection and verification
• Evaluation of recycled material
• Flow characteristics
• Material combinations (e.g. MB)
• Raw material quality and consistency

Processability evaluation

• Process parameter optimisation
• Quality improvement
• Cycle evaluation
• Energy consumption study
• Machine pressure, temperature and speed requirements
• De-moulding behaviour

Applications

• Liquid food packaging
• Cosmetic caps
• Detergents and household chemicals
• Beverage caps
• Standard caps for household and industrial chemicals

Performance  testing

Standard tests /Datasheet tests

Norner performs very many standard tests

• Mechanical properties according to ISO / ASTM standards
• Chemical characterization
• Food migration OML/SML

Performance tests

• Closure dimensions
• Hinge Torque
• Hinge Tensile test
• Hinge fatigue test
• Response of Colour MB of performances
• Cap doming
• Leakage testing
• Secure Seal Test (SST)
• CO2 retention
• Test Method for Environmental Stress Crack Resistance (ESCR) of Threaded Plastic Closures (ASTM D5419-14a./ ASTM D5419-95