Practical Application Guide to Four Screw Cleaning Methods for Modified Plastic Production In modified plastic production, screw cleaning is a critical step to ensure product quality—but it’s often overlooked by manufacturers. Residual carbides, pigments, or cross-contamination between different materials can cause defects like black spots and streaks, leading to significant losses. This guide dives into the principles, key operations, and precautions of four mainstream twin-screw extruder cleaning methods. It offers actionable insights for industry professionals. 01 Resin Cleaning Method Resin

Carbon fiber-reinforced polymer matrix composites are widely used in aerospace, medical, automotive, and shipbuilding industries due to their advantages such as low density, high stiffness, superior strength, and heat resistance. Twin-screw extrusion technology stands out as the primary method for preparing carbon fiber-reinforced polymer composites, owing to its excellent mixing performance, self-cleaning capability, high output, and low energy consumption. Additionally, as injection molding and compression molding techniques become more advanced, the melt produced by twin-screw extrusion can be molded into

In the PVC extrusion industry, screw breakage is a common issue that severely impacts production efficiency and product quality. Screw breakage is typically categorized into normal wear breakage and abnormal breakage. Below is an analysis of the causes of these two types of breakage and preventive measures: 1.Screw Processing and Materials **Material Selection** – Barrel Material: Commonly used materials include Cr12MoV (SKD61 alloy steel) and 38CrMoAlA. – Screw Material: 38CrMoAlA is typically chosen. **Heat Treatment Process** – Barrel: Tempering is

With the improvement of the production and processing technology of twin-screw extruders, they not only need to perform tasks such as feeding and plasticizing, but also have some requirements for dehydration, drying, etc. In order to better meet the different needs of users, twin-screw extruders must continuously improve their work efficiency and find ways to improve the quality of the manufactured products. So, how should we do it? Here are specific methods to improve production efficiency and product quality! How

1、 The material selection for the barrel screw is 38CrMoAlA, and the structural characteristics of several types of barrel screws are introduced as follows: Differences in conventional, low filler, and high filler structures (1) Geometric shapes and pairing relationships of screw edges and grooves Low CaCO3 content: larger between screw flights High CaCO3 content: The gap between the screw flights should be small, with the aim of improving shear force and increasing plasticization (2) The role of each regional segment.

Happy 75th National Day to China! We extend our deepest gratitude to our global partners. Together, we are building bridges across oceans with quality and service. Cheers to shared prosperity and a new chapter of collaboration! ——Ningbo Superior Machinery Team  

Best wishes to my friends, the Dragon Boat Festival happy to be joyful! ——Ningbo Superior Machinery Team  

International Plastics and Rubber Industry Exhibition will be held in COLOMBIA from  23st September to 27th September Superior Machinery will participate in this exhibition. Booth No.:2512B We look forward to meeting you there. ——Ningbo Superior Machinery Team

International Plastics and Rubber Industry Exhibition will be held in Shenzhen, China from April 15th to April 18th. Superior Machinery will participate in this exhibition. Booth No.:9B33 We look forward to meeting you there. ——Ningbo Superior Machinery Team