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  • What is bimetallic coating? A bimetallic coating is a type of surface treatment where two different metals are deposited onto a substrate, typically through a process like electroplating or thermal spraying. The purpose of applying a bimetallic coating is usually to impart...
  • What is the working principle of screw and barrel? Screws and barrels are key components in various machines, particularly in extrusion and injection molding processes used in plastics manufacturing. Here's a simplified explanation of their working principle: Screw: The screw is a long,...
  • How do you make a twin screw extruder? Building a twin screw extruder is a complex process that requires expertise in mechanical engineering, materials science, and manufacturing. The general principles involved: Design: Start by designing the extruder. This involves determining...
  • How much clearance do you need between screw and barrel? The clearance between the screw and barrel in a screw extruder, which is commonly used in plastic processing, is typically very small to ensure efficient material conveyance and melting. The clearance is usually kept to a minimum to prevent leakage...
  • What is the barrel and screw of an extruder? In the context of an extruder, the barrel and screw are key components that work together to process and shape materials, typically plastics, into desired forms. Here's an overview of each: Barrel:  The barrel is a cylindrical...
  • What is a barrel screw used for? A barrel screw, often referred to as a screw barrel or extruder barrel screw, is a crucial component in the extrusion process used in manufacturing plastic products. It's typically part of an extrusion machine. Here's how it works and what it's used...
  • What material is used for screw elements? Screw elements, commonly used in extruders, injection molding machines, and other types of machinery, are typically made from high-quality materials that offer durability, wear resistance, and good mechanical properties. The choice of material...
  • What is a screw barrel used for? A screw barrel, also known as an auger barrel, is a component used in various machinery, particularly in manufacturing processes involving plastic extrusion and injection molding. It consists of a hollow cylindrical chamber with a screw-like...
  • What material is an extruder screw made of? Extruder screws are typically made of high-strength materials that can withstand the high temperatures and pressures involved in the extrusion process. Common materials used for extruder screws include: Stainless steel: Offers good corrosion...
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