PVC extrusion screw profile of the slot machine

PVC extrusion trough, PVC profile customization in the present life has become one of the important material. Because of its production efficiency, environmental protection, transportation, durability is better, form now has a higher ratio of a
a word of mouth. Then to introduce, PVC extrusion machine operation of the most important components: screw.

in the heart of PVC extrusion machine & ndash; — Extruder screw, extrusion extrusion molding is the most important two kinds of injection molding processing one of the production process. Plastic extrusion production process to put it bluntly, is refers to the polymer in the extruder cylinder plastic
and according to the abrasive extrusion, and then by the cool, stretching and blowing, coating, combination, rolling process, such as laser cutting and preparing all kinds of extrusion products, such as common pipe and profile.
in the plastic extrusion production line, plastic extruder as a critical extrusion molding of the host, is used to ensure that the working temperature and symmetrical wear-resisting material, in order to obtain a smooth controllability of goods. In recent years,
extrusion manufacturing and a variety of different plastic pipe and plastic hose, the application of metal composite materials and synthetic fiber, that there is no doubt that hone the continuous extrusion machine counsels
idea.

extruder screw extrusion as key parts of the operating system, need to be in high pressure and high temperature inside the cylinder of large torque rotation gesture, and used to manufacture extruder screw structure of wear-resistant alloy steel must have a high compressive strength,
mechanics can take great torque and working under high temperature standard not deformation, and after tempering treatment should have high surface strength, can resist large sliding friction damage. At present, extruder screw
stem choose 38 crmoal stainless steel plate, carbon steel after tempering treatment for compressive strength HB260 - 290, surface by high frequency hardening, high frequency hardening depth, surface HV740 high compressive strength, ductility than
2%.

the classified method of PVC extrusion machine has a lot of, according to the number of the extruder screw can be divided into no extruder screw, screw extruder, twin screw extruder and extruder screw; According to the regional location can be divided into horizontal and upright post
type; According to the extruder screw speed ratio can be divided into usually, high speed and quick; According to the cylinder can exhaust can be divided into the exhaust pipe and the exhaust pipe; According to the installation structure can be divided into one-piece and separate. Born in
plastic hose extrusion production line, the most common is vertical single screw extruder. Single screw extruder key consists of four parts: extrusion operating system, transmission device, heating/cooling system and automatic control system.

extruder screw plastic extruder extrusion of the operating system as a key part of a, is a solid plastic, molten plastic and plastic extruding machine transportation solution components, different parts of the geometry appearance change will immediately dangerous
to harm the quality of the plastic products and the production, the characteristics of the plastic extrusion machine play a key role. In the design of extruder screw, be sure to consider various factors, in order to apply different characteristics of the material. In the
plastic industry, it is difficult to use only 1 root & other; Universal & throughout; Extruder screw to satisfactorily manufacturing all kinds of plastic products.

in general, the extruder screw can be divided into three part: material, narrow section ( Or plastic) And accurate measurement ( Or balance section) 。

feeding period of key to accept feeding operation system to provide the raw material, then the transport to narrow segment. Narrow section of raw materials to carry out the cement, after melting melting by the external thread on metrological verification period. Raw materials in the metrological verification
section for further melting, then under such as pressure, isothermal standards, extruder screw melt symmetry molten material is equal to the motor.

with plastic extruder main use of expansion and technical development, plastic extrusion machine sales market continue maintained a rising trend. In recent years, high speed, high efficiency and environmental protection and energy saving a
is an international plastics machinery constantly improve the tone. High speed and high yield can be obtained so investors at a relatively low capital investment huge profits. For plastic extruder server and three dimensional printing
the cost of materials production lines, sales market in the future to the high-tech content, the price declining the direction of development. Among them, single screw extruder will toward the oversize, subminiature, with large length to diameter ratio, high benefit and
excellent exhaust direction development, this causes the can apply unique production and processing must screw cylinder structure, become our race to product research and development center.

changshu smoothly da plastic products co. , LTD. , located in nanhai district, is a large-scale enterprise specializing in the production of plastic products, PVC extrusion molding, abnormal opening 20 years production experience of the company.