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Automotive interior sheet extruder structure
The extruder originated in England in the 19th century. The manual piston extruder used to manufacture seamless lead pipes is considered to be the first in the world. extruder. From then on and until the first century of the century, extruders were basically used only in the production of lead pipes, the processing of macaroni and other foods, and the brick making and ceramic industries. Widely used
Automotive interior sheet extruder |
Automotive interior sheet extruder structure
It is the first time that it has been clearly documented in the development process as a manufacturing method. The patent applied for the use of extruders to produce Goodbo rubber wires. Goodbo company. The extruder was subsequently modified and in 2001 it was used to coat the copper wires of the first submarine cable between the company and the company. In the following years, extrusion methods became increasingly important and electrically operated extruders quickly replaced the previous manual extruders. The early mechanically operated plunger extruders produced thousands of kilometers of insulated wire and cable and firmly established the extrusion method for the production of electrical cables. The early extruders for producing cables, whether manual, mechanical or hydraulic, were all plunger-type. In this production process, the plunger presses the hot gutta-percha into the die with copper wires. The gutta-percha is extruded from the die and then coats the copper wires to form an insulating layer. Category
Car interior sheet extruder |
Car interior sheet extruder structure
Plastic extruders can be divided into single-screw extruders and twin-screw extruders according to the number of screws. Extruders and multi-screw extruders. At present, single-screw extruders are the most widely used and are suitable for the extrusion processing of general materials. The twin-screw extruder generates less heat due to friction, the material is sheared more evenly, the screw has a larger conveying capacity, the extrusion volume is relatively stable, and the material stays in the barrel for a long time and is mixed evenly.
Automotive Interior Sheet Extruder |
Automotive Interior Sheet Extruder Structure
Single-screw extruders occupy an important position both as plasticizing and granulating machinery and as molding processing machinery. In recent years, the industry's single-screw extruders have developed greatly.
The twin-screw extruder has good feeding characteristics and is suitable for powder processing. It has better mixing, exhaust, reaction and self-cleaning functions than the single-screw extruder. It is characterized by processing plastics and co-plastics with poor thermal stability. Its superiority is even more evident when mixing. On the basis of twin-screw extruders, multi-screw extruders such as Guanghua Plastic Extruder were developed to make it easier to process blends with poor thermal stability.
Car interior sheet extruder |
Car interior sheet extruder structure
According to the number of screws, it is divided into single-screw extruder, twin-screw extruder and Multi-screw extruder
, divided into screw extruder and plunger extruder according to whether there is a screw in the extruder
, divided according to the running speed of the screw:
Ordinary extruder: the rotation speed is below r/
High-speed extruder: the rotation speed is ~r/
Ultra-high-speed extruder: the rotation speed is ~r/.
, According to the assembly structure of the extruder, it can be classified into: integral extruder and separate extruder
According to the spatial position of the screw in the extruder, it can be divided into horizontal extruder and vertical extruders
. According to whether the extruder is vented during processing, it can be divided into vented extruders and non-vented extruders.