fl@fangli.com +86-574-28883018

Home > News

Industry Knowledge

What is the length to diameter ratio of a screw? How to choose the screw L/D ratio?

The ratio of the length of the working part of the screw (including the length of the threaded part, also referring to the length from the centerline of the feeding port to the end of the screw thread) to the diameter of the screw, is called the aspect ratio. When other conditions are fixed, such as......

What to do when there is no vacuum in the production of PE three-layer co-extrusion pipe equipment

PE three-layer co-extrusion pipe equipment production line is a production and manufacturing line of plastic pipes using vacuum sizing technology. However, if the technology is not mature, the processing is rough, and the process is not refined, some unexpected failures may occur, such as no vacuum.......

PE-RT pipe extrusion equipment

In the process of PE-RT pipe processing, if the control is poor in the process of raw material melting, pipe blank forming, cooling sizing, etc., the mechanical properties of the pipe will be reduced due to the decomposition of raw materials, the orientation of molecular chains or the crystallizatio......

Answers to frequently occurring production technical problems of PPR pipe

Reject Accept

Industry Knowledge

What is the length to diameter ratio of a screw? How to choose the screw L/D ratio?

What to do when there is no vacuum in the production of PE three-layer co-extrusion pipe equipment

PE-RT pipe extrusion equipment

Answers to frequently occurring production technical problems of PPR pipe

Installation site selection of PE pipe production line

Maintenance of Single Screw Extruder