RTP Company provides complete technical support for our specialty compounds, through experienced staff located at each of our worldwide plants. Our technical service personnel can evaluate mold design and setup, optimize processing conditions based on material, assist with handling new materials, and investigate and resolve problems.
Standard Molding Equipment
- Machine Type
- Machine Size
Molding Conditions
- Drying
- Barrel Temperature
- Melt Temperature
- Mold Temperature
- Injection Pressure
- Back Pressure
- Injection Speed
- Screw RPM
General Processing Tips
- Compounds with Fillers
- Compounds with Fibers
Tips to Improve Mechanical Properties
- Tensile Strength
- Tensile Elongation
- Flexural Modulus
- Flexural Strength
- Notched IZOD Impact
- Shrinkage
- Warpage
- Regrind Usage
Injection molds must be properly designed to ensure quality plastic components. Mold design impacts productivity and profitability of your molding operation. This section offers guidelines for designing an efficient injection mold.
Sprue/Cold Material Trap
- Sprue Puller
- Cold Material Trap
Runner Design
- Main Runner
- Secondary Runner
Gate Design
- Submarine or Tunnel Gate
- Pinpoint or Restricted Gate
- Fan or Edge Gate
- Tab Gate
- Sprue Gate
- Flash Gate
- External Ring Gate
- Internal Ring Gate
Thick to Thin Wall Gating
Adjoining Walls
Ribs
- Rib Details
- Boss or Rib
- Support Ribs
Bosses & Gussets
- Free Standing Boss (4 Gusset)
- Free Standing Boss (2 Gusset)
Two Plate Mold
Three Plate Mold
Insulated Runner Mold
Venting & Cooling Design
- Cooling & Ejector Pins
- Venting
