PE, PP, PVC, PS, PC, PF, EP, ABS, PA, PMMA, and others are collectively referred to as plastic materials, also known as polymer materials. Plastic materials are synthetic materials with plasticity made from polymer compounds through various processing methods. Plastic materials have the advantages of being lightweight, high-strength, corrosion-resistant, and good insulators. They are widely
PEEK engineering plastics have good machinability, flame retardancy, non-toxicity, wear resistance, corrosion resistance and other characteristics. They play an important role in weight reduction, effective extension of component service life, and optimization of component utilization. Self-lubricating properties of PEEK PEEK has outstanding sliding properties. It can provide excellent wear resistance under various temperatures, pressures and
Troubleshooting Guide for Injection Molding II Moisture Streaks Physical cause During storage or processing, moisture is absorbed by the granules, forming water vapour in the melt. Due to the velocity profile at the flow front, gas blisters are pushed to the surface of the melt as shown in Figure. Since they want to compensate the
Troubleshooting Guide for Injection Molding I In most cases, the surface quality of thermoplastic injection moulded parts is the main criterion for their quality. Due to the complex interrelationship between the moulded part and the mould, the moulding compound and the processing, it is often very hard to recognise the origin of problems and thus
Before we cut a single line of steel for a new injection mold, our engineering team always conducts a thorough review of the plastic part design. In our 30-plus years of manufacturing experience, we’ve seen how seemingly small design decisions — a wall that’s slightly too thick here, a corner left sharp there — can
In order to communicate with your metal supplier most effectively, and more importantly, in order to choose the material best suited for your particular applications, you need to understand some basic engineering terms used in most metal catalogs. Stress Stress is usually expressed in pounds per square inch (psi). It represents the load in pounds
Injection molding is a process by which plastic pellets are melted using heat and shear in an extruder and injected, at high pressure and flow, into an injection mold to form the part. It is one of the most productive and cost-effective means of producing a high-quality product. While this process seems straightforward, it is
The designer should always decide whether using injection molding is the best approach to mold the item before moving further with it. Have other approaches or product designs that employ different production techniques and utilize the same, comparable, or different materials—or materials that would allow for a similar final result, or even one of higher
Sheet metal fabrication refers to processing metal materials, such as metal plates, into parts or components by cutting, stamping, forming, and other methods. Sheet metal processing technology can meet the production and processing needs of standard parts and mechanical parts in various industries such as factories, warehouses, and exhibition halls. Generally, steel plates, aluminum plates, and
A vertical burn test in progress — the standard procedure for UL 94 V-2, V-1, V-0, 5VB, and 5VA classifications. RpProto offers all materials meeting UL94V0 standards for rapid prototyping and production for CNC machining (ABS and PC), vacuum casting (Hei-cast 8260) and injection molding. UL94 materials allow machined or thermoplastic molded plastic parts to
