fl@fangli.com +86-574-28883018

Home > News

Industry Knowledge

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.......

Deceleration principle of twin-screw extruder

In most extruders, the screw speed changes by adjusting the motor speed. The drive motor usually rotates at full speed of about 1750 rpm, which is too fast for an extruder screw. If it rotates at such a fast speed, too much friction heat will be generated, and the retention time of plastic is too sh......

The plastic pipe extrusion process

The plastic pipe extrusion process is divided into three stages: plasticization of raw materials；forming and Cooling forming.

Design and Construction Principle of Screw of Plastic Extruder

Feeding area of plastic extruder: the fixed groove depth of screw groove, which is responsible for preheating, plastic solid conveying and extrusion. It must be ensured that the plastic starts to melt at the end of the feeding section - that is, it must be preheated to the melting point. The general......

Calibration sleeve and its function

The calibration sleeve is a component that assists the cooling and shaping of plastic pipes in the extrusion production of plastic pipes. It is installed at the front end of the vacuum calibration machine. After the pipe comes out of the mold, it enters the vacuum tank and spray cooling tank for fur......

Type of extruder screws

A screw with excellent performance should not only have high output, but also have a plasticizing effect that meets the product performance and a good comprehensive performance of temperature, pressure and speed. Therefore, a variety of new screws have come out one after another, which greatly impro......

<...83 84 85 86 87...131 >

We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy

Reject Accept