Helper For Plastics Processing Industry - Single Screw Extruder

Strew extruder can be divided into single screw extruder, twin screw and multiple screw extruder according to the number of screws.Hot Exhibition - Weak Points of the shock absorber Hot.

Presently single screw extruder is most widely used and suitable for the extruder of general materials. In these years, single screw extruder has made great progress and occupies an important position whether as plastics granulator machinery or molding processing machinery.

But the main symbol of the development of strew extruder lies in its key part-development of strew. In recent yearshuman beings have a large number of theoretical and experimental research on screw. There are nearly a hundred kinds of screw, such as dissociated, shear type, barrier, shunt and wavy type of screw.What to Dress with kwywords. Just from the development of single screw, although screw extruders have been relatively perfect in recent years, with the progress of high polymer material and plastic products, there will appear new screw of more characteristic and special single screw extruder. In general, single screw extruder is growing to the direction of high-speed, high-efficiency, and customization.

In the polymer extrusion processing of polymer except PCV plastic and window profiles, single screw extruder is in the dominant position. Its characteristics are as follows: simple structure and low price; suitable for the plasticizing and extrusion of polymer; the material can stay a long time in the extruder; easy to operate and process control.

Working Principle of Single Strew Extruder

The effective length of single screw extruder is divided into three sections, which are determined based on the screw diameter, screw pitch and depth, and generally are partitioned by each accounted for one third length. The last whorl in the discharge port called transport section, where materials can not be plasticized here but needs to be preheated, compressed and compacted, actually materials here are solid plug. The second section is called compressive section, where the screw groove changes from large to small and the temperature should reach the level of material plasticization, then materials are compressed here from conveying section three to section one, but some machines may have no changes. Materials being plasticized will enter into the third section. The third section is the metering section where plastics material should maintain the temperature and melt materials will be conveyed to supply the nose.

Maintenance of Single Screw Extruder

Daily maintenance is the regular routine work and usually completes when equipments are not operated, we should focus on cleaning machines, lubricating the moving parts, fastening loose thread, checking and adjusting motor, controlling instrument and the working parts and pipeline; regular maintenance is generally carried on in the downtime after 2500-5000 hours of continuous operation and machines need to be checked out disassembly; pay attention to the cleaning of production environment and prevent metal or other debris failing into the hopper so as to avoid destroying the screw and barrel; when the single screw extruder stops for a long time, we should coat the screw, machine head, Jane, working surface with antirust grease.Name brands Shortcomings of auto zone Items. The temperature controlling instrumentation needs to be regulated periodically; designate a person in charge of the equipments maintenance and record each result in the management archives in detail.

by: combd

POST COMMENT

Intro Of Carburetor A Successful Show From Good Ad. Tools Mine Hoists For Lifting Mined Materials With Much Ease What Are The Most Common Kidney Conditions An Ultrasound Can Diagnose? How To Sell Used Cars Sacramento In A Hassle Free Way Do You Wish To Grow Your Charity? If So, You Need To Review This Write-up Which Will Certainl Why A Day At Body-tonix Spa In York Is A Perfect Gift? Getting News Headlines With Ease Mathnasium: Sunnyvale Math Tutor For Dealing With Urgent Situations Tiny Cash Help With Long Repayment Span Directory Submission To Get Best Result In Seo Spiritual Expansion - What Is Metaphysics