Welcome to Injection Moulding Asia
Injection Moulding Asia Magazine is published four times a year as a special supplement within Plastics & Rubber Asia magazine.
LONG FIBER COMPOUNDS MOLDING GUIDELINES: Drying Long Fiber Compounds
Moisture may be present in some materials, either on the surface or absorbed by the resin system. Without proper drying, this moisture may be converted to steam in the injection cylinder and cause blisters, splay, internal voids, and lamination of the molded part’s surface. Undried hygroscopic materials can suffer degradation of properties.
LONG FIBER COMPOUNDS MOLDING GUIDELINES: Tooling Considerations
LONG FIBER COMPOUNDS MOLDING GUIDELINES: Tooling Considerations,Processing Considerations,Molding Temperatures
LONG FIBER COMPOUNDS MOLDING GUIDELINES: Equipment Considerations
A general purpose screw that utilizes a typical three-zone style is best for processing Long Fiber Compounds. The screw has three sections: feed, compression, and metering. Metering should be done with an L/D ratio of 16:1 to 22:1, with a low compression ratio of 2:1 to 2.5:1.
Long Fiber Compounds Molding Guidelines
When processed properly, Long Fiber Compounds retain their fiber length during molding. Correct processing is critical to maintaining high-quality parts; breaking the fibers during processing can result in sharply reduced material properties.
Overmolding Design Considerations
The required adhesion is dependent on the end-use application and environment. Not all overmold grades bond to all substrates. The substrate type determines which RTP Company TPE overmolding grade must be used to achieve the best bond. The end-use environment also influences which grade to select. The expected service life of the product should be considered when establishing adhesion requirements. Initial material selection is the first step.
Thermoplastic Elastomer Molding Guidelines
Obtaining rubber like performance with the processing ease of injection molding is the primary benefit of TPEs. Improved cycle times and reduced scrap rates esult and allow for improved part economics.
As Estane turns 50, new uses for TPUs abound
As Estane turns 50, new uses for TPUs abound
Sawhorse supporting NTM in tough times
Sawhorse supporting NTM in tough times
Design is China’s best chance for future growth
Design is China’s best chance for future growth