Extruder Combination Barrels

Structural Composition

• The inner liner is usually the part that directly contacts the materials. It is generally made of materials with good wear resistance, corrosion resistance, and high-temperature resistance, such as certain high-quality alloy steel materials or metal materials with special coating treatments on the surface. Its function is to withstand the direct forces brought about by the flow, extrusion, and friction of the materials inside the barrel, ensure the structural integrity inside the barrel, and enable the materials to undergo heating, plasticizing, and other processing operations in a relatively stable and suitable environment. For example, in the plastic extrusion processing, the inner liner needs to be able to withstand the friction of plastic raw materials at high temperatures and prevent itself from wearing out too quickly, so as not to affect the normal transportation of materials and the product quality.
  

  
  

• The outer shell mainly plays a role of support and protection, providing a stable external framework for the entire barrel structure. It is usually made of metal materials with relatively high strength, such as common carbon steel and stainless steel. The outer shell can wrap the inner liner inside, prevent external factors from interfering with the inside of the barrel, and also facilitate the installation of other accessory components, such as heating devices, cooling devices, and temperature sensors, enabling the barrel to better cooperate with various components to complete the processing of materials.

Manifestation of Functional Advantages

• Extension of Service Life: Since the inner liner and the outer shell have clear division of labor, with the inner liner mainly dealing with the direct effects of materials and the outer shell focusing on external support and protection, when the inner liner has problems such as wear and tear, only the inner liner needs to be replaced while the outer shell can still be used. Compared with the integrated barrel, the overall service life of the modular barrel is greatly extended, and the equipment renewal cost is reduced.

• Facilitation of Customization: Different production processes may have different requirements for the inner liner and the outer shell of the barrel. For example, when processing highly corrosive materials, a more corrosion-resistant inner liner material can be selected; and in situations where higher strength is required, the structural design of the outer shell can be strengthened. Through separate adjustments to the inner liner and the outer shell, the customization of the barrel can be easily achieved to meet diverse production needs.

Application Scenarios Examples

• The modular barrel can be seen in many industrial fields. In the plastic processing industry, whether it is the production of plastic films, plastic pipes, or various plastic parts, the modular barrel can rely on its structural advantages to flexibly adjust process parameters and ensure the stable processing of materials. In the rubber manufacturing field, for processes such as rubber mixing and extrusion molding that require high-precision temperature control and wear resistance, the modular barrel can also be well adapted. By replacing different inner liner materials to cope with the differences brought about by different rubber formulations, high-quality rubber products can be ensured to be produced.