Maintenance method of conical twin-screw extruder1. When the new extruder machine is running for half a year, due to the problem of wear and tear, we must re-check the gap between the screw and barrel every three months and make appropriate adjustments. In order to avoid the output of extruder machine drop due to the excessive…

Six Basic Principles of Plastic Extrusion ( Feeding-Transport-Compression-Melting-Mixing-Exhausting)After the plastic is added to the extruder barrel by the hopper, the thread is forced to push the direction of the head with the rotation of the screw. Due to the resistance of the filt…

General Knowledge of PE Pipe Extrusion Die In the current pipe market, PE pipes are encountering and exceeding the amount of PVC pipe at a higher speed. It is necessary to understand the important part of the production of PE pipes - extrusion die - in production and in current or future projects. The two extrusion dies currently …

Analysis of normal wear fracture and abnormal fracture of PVC screw 1. The screw is normally broken:The screw is a vulnerable item in the extrusion process. The amount of calcium powder added is different, and the life of the screw is different. Generally, the screw life of 100 parts of calcium and below…

Structural Characteristics of Screw on the Processing and Mechanical Properties (1) Screw structure requirements for less than 30 parts, 80 parts or less, and 120 parts or less of filler PVC pipe products120 parts or more: the metering section gap is small, if the metering section gap is large, the compression is not enough, the mixing increases the number of slots, the number o…

Introduction to the characteristics of several types of barrel screw structure1. Conventional, low filler, high filler structure difference

The three functional zones of the PVC extruder have different roles.The melting temperature and degradation temperature of PVC are relatively close, and good plasticization is required to prevent degradation of the melt. Therefore, generally according to the work function, with the extruder venting hole as the boundary, it can be divided into two func…

Differences in working principle between co-rotating twin-screw extruder and single-screw extruderTwin-screw extruder is the most common machinery in the modified plastics industry. It is widely used in the polymer processing industry and other production and processing fields. There are many types of twin-screw extruders, which can be divided into two types: meshing …

Global Plastic Extrusion Machine Market: OverviewThe global plastic extrusion machine market has been expanding at a stellar pace over the past decade. This is due to the wide scale manufacturing and remolding of plastic materials, and the need for producing resilient plastic products. The manufacture of plastic is characterized by multi…

Development Trend of China's Plastic Machinery MarketPlastic machinery plays an important role in the production of plastics. Since the beginning of the 21st century, China's plastic machinery industry has achieved sustained and rapid development, and is one of the fastest growing industries in the country. The main economic indicators rank am…