Construction of Injection Molds
Atlas Precision, Inc. tool construction meets the demands of the particular application. We keep things simple: simple to assemble, disassemble and simple to maintain. Atlas Precision, Inc. high-cavitation tooling consistently exceeds customer expectations for trouble-free performance and longevity. Please note:
- Structural Integrity
- Modulus of base plates, rails and support columns is carefully engineered to maintain a flat parting line at cycle speeds, loads and temperatures.
- Compression, tension and bending calculations are made and tool steels, hardness, and surface coatings are expertly selected.
- Ejector plates are designed to carry injection as well as ejection loads
- Mechanical Function
- Safety and simplicity are first and foremost considerations.
- Horn pins are designed with removable caps for easy maintenance.
- Every mechanical action component is designed with handling and maintenance in mind.
- Ejector pins are shoulder guided in the retainer plate and vent relieved.
- Accelerated ejection is always used to free parts from lifters.
- Thermal Expansion
- Steel expansion is calculated at cycle-speed temperatures to prevent premature component wear.
- Cooling
- Tool and component temperature control is maintained in each segment of the tool at cycle speed.
- Water volumes in each cooling segment are calculated to maintain uniform temperature profile and achieve maximum temperature removal rate.
- Venting
- Active vent pins are used when applicable.
- Direction of gasses to outside and away from internal components.
- Large leader pin vents are used to facilitate cleaning.
- Materials
- Steels and coatings are selected to optimize tool life and enhance heat exchange.
- Non-ferrous metals and specialty materials are used to speed or retard the removal of temperature when appropriate.
- Hot Runner Systems
- Plug boxes are designed with clearance and handling considerations in mind.
- Maintenance ease, service considerations and next day component availability are required to be demonstrated by the hot runner supplier before system selection is made.
- Top Half and Stack Mold center sections must be approved by Atlas designers and satisfy Atlas safety and maintenance requirements before system selection.
- Mold Straps and handling instructions are provided with every tool.
- Identification and nameplates are installed on every tool.
- Water line identification and sequence and volume requirements are indicated.
- Electrical wire schematics and wattage requirements are indicated when applicable.
- Safety
- Mold Straps and handling instructions are provided with every tool.
- Identification and nameplates are installed on every tool.
- Water line identification and sequence and volume requirements are indicated.
- Electrical wire schematics and wattage requirements are indicated when applicable.
More Products and Services
Atlas Precision Plastics offers a variety of products and services. We can assist you from product design to mold flow and packaging.