News

How to optimize the production efficiency and product quality of twin-screw extruders?

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

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Introduction to the structural characteristics of the barrels and screws

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.

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COLOMBIA PLAST 2024

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

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Chinaplas 2024

International Plastics and Rubber Industry Exhibition will be held in Shanghai, China from April 23th to April 26th. Superior Machinery will participate in this exhibition. Booth No.:4.1B25 We look forward to meeting you there. ——Ningbo Superior Machinery Team

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Good Luck in the Loong Year!

The dragon is a symbol of power, strength, and good luck in Chinese culture. May your family be blessed with happiness and harmony throughout the year. Happy Chinese New Year! from  SUPERIOR team

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Happy 2024!

Time flies, we are stepping to usher in the New Year. Thank you for your trust throughout the year, we keep the commitment to support our clients with high-level and high-precision products to meet their needs in the coming year. Happy 2024!

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Screw tips

Principles of Selection of Plasticizing Barrel Assembly and Design of Injection Molding Nozzle Components

Principles of Selection of Plasticizing Barrel Assembly and Design of Injection Molding Nozzle Components Considerations: Conveying section, compression section, metering section, three-section ratio, compression ratio, depth of metering section screw groove, length-diameter ratio, number of teeth. Selection principles a.For good mixing effect, a design with a large length-diameter ratio, more teeth, high compression ratio, and shallow metering section screw groove should be used, such as PA, PE, PP, and POM. b.To prevent shear overheating, a design with a small length-diameter

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Main factors affecting plasticizing quality

Main factors affecting plasticizing quality The main factors affecting plasticizing quality are: length-to-diameter ratio, compression ratio, back pressure, screw speed, and barrel heating temperature, etc. Length-to-diameter ratio: the ratio of the effective working length of the screw to the diameter of the screw. a.A larger length-to-diameter ratio makes feeding more uniform; b.Plastics with better thermal stability can use longer screws to improve compounding without burning, while plastics with poor thermal stability can use shorter screws or screws without threads at

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