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Advanced
injection processes

Innovation and precision in the manufacturing of Technical Plastics

Norject optimizes plastic injection with science and technology, identifying and correcting faults through machine testing. Quality is ensured by integrating Material, Mold, Machine, and Process.

Materials Used in Precision Injection

At Norject, we work with non-Newtonian materials, whose viscosity varies with deformation speed. The materials we transform include reinforcement fillers in their polymer matrix, enhancing mechanical, thermal, and chemical resistance properties.

Some of the materials we work with include:

LCP (Liquid Crystal Polymer) – High thermal stability and chemical resistance.
PE (Polyethylene) – Flexibility and impact resistance.
PA / PA 66 (Polyamides) – Excellent mechanical and chemical resistance.
PBT (Polybutylene Terephthalate) – High dimensional stability.
PC (Polycarbonate) – Impact resistance and optical transparency.
PET (Polyethylene Terephthalate) – Balanced mechanical properties.
PEEK (Polyetheretherketone) – Extreme heat and aggressive chemical resistance.
PMMA (Polymethylmethacrylate) – High transparency and UV resistance.
PP (Polypropylene) – Lightness and chemical resistance.
POM (Polyoxymethylene) – Low friction and high precision in moving parts.
PPS (Polyphenylene Sulfide) – Excellent thermal and chemical stability.
PPA (Aromatic Polyamide) – High thermal and chemical resistance.
PS (Polystyrene) – Good workability and impact resistance.
TPV (Thermoplastic Vulcanizate) – Elasticity with improved thermal resistance.

Key Factors in the Injection Process

Material Mold and Part Design Injection Machine Injection Process

Material

  • Analysis of variability between batches of raw material.
  • Study of polymer morphology for optimal injection.
  • Control of rheology, crystallization, and volumetric shrinkage.
  • Evaluation of technical data sheets and behavior under pressure.

Mold and Part Design

  • Analysis of shear and pressure loss in material flow.
  • Optimized design of the injection system to maximize quality and efficiency.
  • Implementation of robust cooling systems for precise thermal control.
  • Mold balancing tests to ensure production stability.

Injection Machine

  • Specialization in high-precision electric machines.
  • Preventive maintenance strategy and mechanical fault resolution.
  • Ensure sealing integrity at the screw tip for high-pressure processes.
  • Portability and data transfer for enhanced traceability.

Injection Process

  • Application of Scientific Injection Molding.
  • Optimal machine configuration for stability and output control.
  • Control of injection speed and material crystallization.
  • Optimization of shrinkage in molding semicrystalline materials.