News

Good Luck in the Year of the Dragon!

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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Several important geometric parameters of screws

Several important geometric parameters of screws Screw diameter (D) a.Related to the required injection volume Ejection volume=1/4 × π × D ²× S (ejection stroke) × 0.85 b.Generally speaking, the diameter D of the screw is inversely proportional to the maximum injection pressure and directly proportional to the plasticizing ability. Conveying section a. Responsible for the transportation, extrusion, and preheating of plastics, ensuring preheating to the melting point; b.Crystalline plastics should be longer (such as POM, PA), followed by amorphous

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Screw Design Principles

The main part of the pin screw is a common screw, and the locking pin can be set in the groove of the melting section or metering section of the screw, or on the smooth cylindrical surface at the end of the metering section without a screw groove. The locking pins are arranged in a certain way with varying density and quantity. The cylindrical locking pins are assembled into the holes of the screw, while the square or diamond-shaped locking

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Chinaplas2023

The 35th International Plastics and Rubber Industry Exhibition will be held in Shenzhen, China from April 17th to April 20th. Superior Machinery will participate in this exhibition. Booth No.: 9Y59 (Hall 9) We look forward to meeting you there. ——Ningbo Superior Machinery Team  

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Hello,2023!

Dear Customers, Thank you for your cooperation and support in 2022. SUPERIOR will continue to provide you with superior quality products and services. Thank you again!Looking forward to our close cooperation in the future. Ningbo Superior Machinery Team

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