Plastic Extrusion Machinery | Plastic Extrusion Machines- an information site on Plastic Extrusion Machines
Plastic Extrusion Machinery | Plastic Extrusion Machines- an information site on Plastic Extrusion Machines
Free Online Articles Directory
Why Submit Articles?
Top Authors
Top Articles
FAQ
AB Answers
Publish Article
0 && $.browser.msie ) {
var ie_version = parseInt($.browser.version);
if(ie_version Hello Guest
Login
Login via
Register
Hello
My Home
Sign Out
Email
Password
Remember me?
Lost Password?
Home Page > Business > Plastic Extrusion Machinery | Plastic Extrusion Machines- an information site on Plastic Extrusion Machines
Plastic Extrusion Machinery | Plastic Extrusion Machines- an information site on Plastic Extrusion Machines
Edit Article |
Posted: Nov 25, 2010 |Comments: 0
|
Share
]]>
Plastic Extrusion Machinery
Plastics extrusion is a process of high volume manufacturing in which raw material is melted and formed into a continuous profile. Extrusion produces items such as window frames, adhesive pipe/tubing, weather stripping, and tape and wire insulation. It is also a process in which material is forced through a series of dies to create desired shapes. Many ceramics are manufactured by extrusion, because the process allows efficient, continuous production. In a commercial screw-type Plastic Extrusion Machinery, a screw auger continuously forces the plastic feed material through an die, resulting in simple shapes such as pipes, and cylindrical rods rectangular solid and hollow bars, and long plates.
Process
The process begins by heating the raw material. It is then loaded into the container in the press. A block is placed behind it where the ram then presses on the material to push it out of the die. Afterward the extrusion is stretched in order to straighten it. The extrusion ratio is defined as the starting cross-sectional area divided by the cross-sectional area of the final extrusion. One of the main advantages of the extrusion process is that this ratio can be very large while still producing quality parts.
Plastic
Plastic Extrusion commonly uses plastic chips or pellets, which are usually dried in a hopper before inserting it to the feed screw. The polymer resin or the raw material is heated to molten state by a combination of heating elements and shear heating from the extrusion screw. The resin with the help of a screw pushed through a die, forming the resin into the desired shape. The extruder is further cooled and solidified as it is pulled through the die or water tank. In some cases the extruder is pulled through a very long die, in a process called pultrusion.
A multitude of polymers are used in the production of plastic tubing, pipes, rods, rails, seals, and sheets or films.
Plastics are made by a chemical process called polymerization.
There are several different types of polymerization:
Condensation polymerization is a reaction where two molecules join into one larger one, releasing a molecule in the process. Examples of condensation polymers are Nylon-6,6 (a polyamide) and PET (a polyester).
Addition polymerization is where two molecules join to form one larger one without losing any atoms in the process. Examples of addition polymers are Nylon-6 (also a polyamide, but produced using a ring-opening process rather than a condensation process) and polystyrene (a polyolefin, generally produced using a free-radical propagation mechanism).
Machinery/ Machine
A Machine is device used to reduce an effort to give you an output of product or service. The entity could be a result of any substance or matter arranged in different different forms.
A machine is a device that uses energy to perform some activity. In common usage, the meaning is that of a device having parts that perform or assist in performing any type of work.
It is a chain process as you put in inputs like raw materials PP, PVC, etc which gives you a final product like plastic etc. Through this machine one can manufacture moulded plastics or unmoulded form. The unmoulded form can be like pet bottles, jars, car glove box. And molded plastics like plastic sheets, cling films etc. Manufacturing of machines differ from country to country.
Various types of machines:
Switch
Computer
Car
TV
Washing Machine
Sewing Machine etc
Various types of Plastic Extrusion Machinery:
Blown Film Machines
Cast Film Machines
PPTQ Blown Film Machine
Wide width Blown film machine
Zip Lock machine etc
Types of Plastic Extrusion Sheet Extrusion
Sheet Extrusion
The extrusion process in which various resins or related raw material for plastic making are used to produce flat sheets in continuous or non continuous form is called as Sheet Extrusion.
The sheets could be of various thicknesses from vehicle bed liners playground equipment, containers, and boats , packaging applications including cling films, cups, trays etc
The thinner gauges are thermoformed into packaging applications such as deli containers, drink cups, produce trays, baby wipe containers and margarine tubs. Flat sheet is welded into large containment systems for mining applications and municipal waste disposal which is the third primary use for extruded sheet which is a geomembranes system.
The most common polymer for use in sheet extrusion continues to be Polystyrene. It is the dominant material for thermoformed packaging and competes with ABS and PP in technical markets. End use applications include tubs and pots for yogurt, margarine, and desserts. Thermoformed packaging is also used in many other applications in the food industry for packing various kinds of products.
The most common technique used in extruding plastic sheet for the thermoforming industry is Single layer flat extrusion. Resin is fed into an extruder where it is plasticized into a melt.
Profile Extrusion
Profile Extrusion is produced by forcing uncured rubber through a die under heat and pressure, to form a part with a uniform cross section. This uncured rubber is then run through a heating unit to initiate the chemical cross linking reaction that causes the rubber to cure.
This production line can productively produce profile product. It has high output capacity, durability and plastic evenly with recent technology and optimized design.
Process:
The plastic is fed in the machines, the material is conveyed continuously forward by a rotating screw inside a heated barrel being softened by both friction and heat. The softened plastic is then forced out through a die and directly into cool water where the product is solidified. From here it is conveyed onwards into the take-off rollers, which actually do the pulling of the softened plastic from the die.
Typical Materials for Plastic Profiles
(High Density Polyethylene) HDPE
(Low Density Polyethylene) LDPE
Linear Low Density Polyethylene) LLDPE
PETG
PVC Flexible
Butyrate
Polypropylene
Polystyrene
ABS The most commonly used material for general purpose extrusions is PVC.
Over-Jacketing Extrusion
Over-Jacketing Extrusion is produced by forcing uncured rubber through a die under heat and pressure, to form a part with a uniform cross section. This uncured rubber is then run through a heating unit to initiate the chemical cross linking reaction that causes to cure the rubber.
Other related extrusion processes are
Sheet Extrusion
Profile Extrusion
Pipe Extrusion
Lamination
Foam etc.
Pipe Extrusion
In the extrusion of plastic pipe wherein the pipe is in a semi- molten or self supporting state on exiting a die, the inner surface of the extruder is cooled by a device which applies suction for establishing flow of a cooling fluid which contacts the inner surface of the extruder. In a further process the flow of cooling fluid established for cooling the extruder additionally cools a cavity within a middle part of a die or. The process of forcing the polymer melt through a shaping die that is circular is defined as Pipe extrusion. The extruder from the die is cooled, sized and the formed pipe is pulled to the winder or a cut off device with the aid of haul off device.
COATING AND LAMINATION
Extrusion laminating is a process related to extrusion coating, but the difference here is that extrusion-coated layer is used as an adhesive layer between two or more substrates. A secondary layer is applied to the extrusion coating while it is still hot. It further monitors the melt curtain before the chill roll before the sandwich is formed. The sandwich is then pressed together by pressure rolls. In addition to providing adhesion, the extrusion-coated layer may also serve as a moisture barrier.
In extrusion coating, resin is melted and formed into thin hot film. It measures the extruded film as it is coated onto a moving, flat substrate such as paper, paperboard, metal foil, or plastic film. The coated substrate then passes between a set of counter rotating rolls.The extrusion coated layer may protect a printed substrate or act as a moisture barrier which press the coating onto the substrate to ensure complete contact and adhesion.
CO- EXTRUSION
The advantage of coextrusion is that each ply of the laminate imparts a desired characteristic property, such as stiffness, heat-seal ability, impermeability or resistance to some area or environment.
The process of extruding two or more materials through a single die with two or more dies arranged so that the extruders merge and weld together into a laminar structure before chilling. Each material is fed to the die from a separate extruder, but the orifices may be arranged so that each extruder supplies two or more plies of the same material. Coextrusion can be employed in film blowing, free film extrusion, and extrusion coating processes. The benefits of coextrusion is that each ply of the laminate imparts a desired characteristic property, such as stiffness, heat-sealability, impermeability or resistance to some environment, all of which properties would be impossible to attain with any single material.
CAST FILM EXTRUSION
Process that involves the extrusion of polymer melts through a slot or flat die to form a thin, molten sheet or film. This film is “pinned” to the surface of a chill roll (typically water-cooled and chrome-plated) by a blast of air from an air knife or vacuum box. Process by which a polymer is extruded from a slot dies onto the surface of a water-cooled roll. Film is clearer and has more sparkle than blown film.Stretch films manufactured by the cast film extrusion process are called cast films. Stretch film extruded by the cast method typically have greater tear resistance, greater aesthetic values and are quiet to unwind, which is not typically found in film manufactured by the blown method. Plastic film produced from synthetic resins (such as polyethylene) by the cast process. In this process, the molten resin is extruded through a slot die onto an internally cooled chill roll.
Foam Extrusion
During the chemical foam extrusion process chemical foaming and plastic resin agents are mixed and melted. The chemical foaming agent decomposes liberating gas which is dispersed in the polymer, melts and expands upon exiting the die. Due to the insulation properties of the foam structure foamed profile extrusions require more intense cooling than solid profiles.
Calendaring
Calendering is a process that usually uses four heated rolls rotating at slightly different speeds. PVC is the most commonly calendered material. Again the material is fed into the rolls, heated and melted, and then shaped into sheet or film.
Retrieved from “http://www.articlesbase.com/business-articles/plastic-extrusion-machinery-plastic-extrusion-machines-an-information-site-on-plastic-extrusion-machines-3730947.html”
(ArticlesBase SC #3730947)
Liked this article? Click here to publish it on your website or blog, it’s free and easy!
shashank -
About the Author:
Shashank
PlaceOnTop.com | Cast Film Line | SSPrintingMachines
]]>
Questions and Answers
Ask our experts your Business related questions here…200 Characters left
What chemicals are involved in recycling of plastic?are the same chemicals added in the machine together with the plastics?can i get the full procedure i mean the whole process of recycling plastic?ps
I need grants to go back to school, is there one site that is just for grants and scholarships. I am going to be getting my degree in information and library services
Rate this Article
1
2
3
4
5
vote(s)
0 vote(s)
Feedback
RSS
Print
Email
Re-Publish
Source: http://www.articlesbase.com/business-articles/plastic-extrusion-machinery-plastic-extrusion-machines-an-information-site-on-plastic-extrusion-machines-3730947.html
Article Tags:
plastic extrusion machinery, plastic extrusion machines, machineries, machinery, machines, plastic, plastics, extrusion, extrusions, manufacturer, india
Related Articles
Latest Business Articles
More from shashank
Plastic Extrusions Machinery
Offers plastic extrusions machinery including raffia tape stretching plant, extrusion coating lamination plant, air bubble sheet plant, multi layer blown film plant, co-extrusion two layer blown film plant, mono layer blown film plant, PP-TQ blown film plant, PP HDPE Pet box strapping plant, monofilament plant, sutli plant, pet reprocess plant by Ocean Extrusions, Ahmedabad, India.
By:
Mrunal Ramanujl
Business>
Business Opportunitiesl
Oct 05, 2010
Compelete Solution for Plastic Rope Machinery
Plastic is the one of the most important thing of our life ,without it we can’t think of our life ever from small bags to big ropes to bitch the ships plastic is used at the stages of our life .
By:
Rudrik Trivedil
Businessl
Nov 28, 2008
lViews: 422
PET Stretch Blowing Machine & Automatic Blow Molding Machine
This article gives a brief idea about molding machine. It also tells the application which uses it. It also describe the types of moulding machine and its uses.
By:
Ranjitl
Business>
Small Businessl
Jul 27, 2010
The 9th International Plastics and Rubber Industry Exhibition in Suzhou
Start time: 2009-03-12 End time: 2009-03-14 Venue: Suzhou International Expo Center Contact: Yang Contact Phone: 0512-62804421 Sponsored by: Suzhou Municipal People's Government
By:
hotxueboyl
Business>
Organizationall
Jul 19, 2010
Cast Film Line Manufacturing from India
Our MultiLayer PE Cast Film Line is one amongst our best in class Plastic Extrusion Machine. Visit the whole range of plastic extrusion machinery at ssmech.com by S.S Mechanical Engineers Ltd, One of India’s Leading Cast Extrusion Machinery Manufacturers.
By:
shashankl
Business>
International Businessl
Nov 27, 2010
Plastic Machinery Giant Emerging Market Concerns
As in the past year and a half tumultuous financial situation becoming more and more calm, the machine manufacturers began to pay attention to the individual to global markets
By:
xxyxyl
Business>
Entrepreneurshipl
Oct 11, 2010
Rapid Prototype Mold Industry Outlook And Trend Analysis
In recent years, steady and rapid economic development, stimulating rapid growth in fixed assets investment, China Mould market demand. As the industry improve its competitiveness and national policy support, domestic rapid prototype Shenzhen mold industry output value and sales revenue for many years to maintain the growth rate of 20%. Die Network CEO, Shenzhen Institute of Deputy Secretary-General Luo Baihui mold technology recently introduced to the Dongguan Daily News the latest developments
By:
Rebeccal
Business>
Online Businessl
Apr 14, 2010
So Who is Ryan Deiss and how did they grow to be successful
Find out the secrets behind the biggest internet marketing minds alive and also just how they grew to become successful
By:
RuchiTanishal
Businessl
Jan 08, 2011
Endoscopy Devices Market to 2016 – Need For Therapeutic Endoscopy and Advancements in HD Endoscopy to Drive Flexible Endoscopes
Aarkstore announce a new report “Endoscopy Devices Market to 2016 – Need For Therapeutic Endoscopy and Advancements in HD Endoscopy to Drive Flexible Endoscopes” through its vast collection of market research report.
By:
Abhishekl
Businessl
Jan 08, 2011
How Local Businesses Are Getting Local Free Traffic
Is online marketing actually worth the hype that it is made out to be? Research has shown that 95% of people in every developed country will search for a local business on the internet before they will grab the yellow pages to do this, and research also shows that 98% of all consumer researchers do not look further than the first page of any search engine.
By:
Michael Griffithsl
Businessl
Jan 08, 2011
Multiparameter Patient Monitoring Market to 2016 – Increasing Demand from Emerging Markets to Upset Global Market Maturity — Aarkstore Enterprise
Aarkstore announce a new report “Multiparameter Patient Monitoring Market to 2016 – Increasing Demand from Emerging Markets to Upset Global Market Maturity” through its vast collection of market research report.
By:
Abhishekl
Businessl
Jan 08, 2011
Oncology Market in China to 2017 – Better Access to Cancer Therapies for the Rising Cancer Population through Healthcare Reforms Drives the Market
Aarkstore announce a new report “Oncology Market in China to 2017 – Better Access to Cancer Therapies for the Rising Cancer Population through Healthcare Reforms Drives the Market
” through its vast collection of market research report.
By:
Abhishekl
Businessl
Jan 08, 2011
Seasonal Influenza Vaccine Market in Asia – Pacific Region – Threat of Pandemic Influenza and Increasing Vaccination Coverage to Drive Growth
Aarkstore announce a new report “Seasonal Influenza Vaccine Market in Asia – Pacific Region – Threat of Pandemic Influenza and Increasing Vaccination Coverage to Drive Growth” through its vast collection of market research report.
By:
Abhishekl
Businessl
Jan 08, 2011
Antihypertensives Market to 2016 – Generic Erosion Following Patent Expiry of Major ARBs to Impact the Market — Aarkstore Enterprise
Aarkstore announce a new report “Antihypertensives Market to 2016 – Generic Erosion Following Patent Expiry of Major ARBs to Impact the Market” through its vast collection of market research report.
By:
Abhishekl
Businessl
Jan 08, 2011
Biofuels Market in the Americas to 2020 – Renewable Fuel Standards and Biofuel Mandates Will Stimulate Investment — Aarkstore Enterprise
Aarkstore announce a new report “Biofuels Market in the Americas to 2020 – Renewable Fuel Standards and Biofuel Mandates Will Stimulate Investment” through its vast collection of market research report.
By:
Abhishekl
Businessl
Jan 08, 2011
Cast Film Line Manufacturing from India
Our MultiLayer PE Cast Film Line is one amongst our best in class Plastic Extrusion Machine. Visit the whole range of plastic extrusion machinery at ssmech.com by S.S Mechanical Engineers Ltd, One of India’s Leading Cast Extrusion Machinery Manufacturers.
By:
shashankl
Business>
International Businessl
Nov 27, 2010
Printing Machines | Printing Machinery Manufacturers from India
Printing Machine Manufacturer and Plastic Conversion Machinery manufacturers from India: S.S.Mechanical Engineers Pvt Ltd. One of the leading manufacturers, exporters, suppliers for Printing Machinery and Conversion Machines since 1980. Manufacturing the state of art Printing Machines for various needs using raw material which use easily available, cost effective yet of wide range to get the output of Your Choice.
By:
shashankl
Advertising>
Printingl
Nov 25, 2010
Plastic Extrusion Machinery | Plastic Extrusion Machines- an information site on Plastic Extrusion Machines
This site is an indepth encyclopedia of Plastic Extrusion Machinery/ Plastic Extrusion Machine. It covers the meaning, applications, features, manufacturers for various types of Plastic Extrusion Machineries/ Machines.
By:
shashankl
Businessl
Nov 25, 2010
Blown Film Extrusion Line
This site is an indepth encyclopedia of Blown Film Extrusion Line/ Blown film Plant- Plastic Extrusion Machinery. . It covers the various types of Blown Film plastic extrusion machines, their applications, features, manufacturers etc. Feel free to write to us or ammend the various topics of Blown Film Plastic Extrusion Machineries/Machines.
By:
shashankl
Business>
Industriall
Nov 24, 2010
Add new Comment
Your Name: *
Your Email:
Comment Body: *
Verification code:*
* Required fields
Submit
Your Articles Here
It’s Free and easy
Sign Up Today
Author Navigation
My Home
Publish Article
View/Edit Articles
View/Edit Q&A
Edit your Account
Manage Authors
Statistics Page
Personal RSS Builder
My Home
Edit your Account
Update Profile
View/Edit Q&A
Publish Article
Author Box
shashank has 4 articles online
Contact Author
Subscribe to RSS
Print article
Send to friend
Re-Publish article
Articles Categories
All Categories
Advertising
Arts & Entertainment
Automotive
Beauty
Business
Careers
Computers
Education
Finance
Food and Beverage
Health
Hobbies
Home and Family
Home Improvement
Internet
Law
Marketing
News and Society
Relationships
Self Improvement
Shopping
Spirituality
Sports and Fitness
Technology
Travel
Writing
Business
Agriculture
Ask an Expert
Business Ideas
Business Opportunities
Corporate
Customer Service
Entrepreneurship
Ethics
Franchise
Fundraising
Home Business
Human Resources
Industrial
International Business
Leadership
Management
Negotiation
Networking
Non Profit Organizations
Online Business
Organizational
Outsourcing
Presentation
Project Management
Public Company
Public Relations
Sales
Six Sigma
Small Business
Strategic Planning
Team Building
Training
]]>
Need Help?
Contact Us
FAQ
Submit Articles
Editorial Guidelines
Blog
Site Links
Recent Articles
Top Authors
Top Articles
Find Articles
Site Map
Webmasters
RSS Builder
RSS
Link to Us
Business Info
Advertising
Use of this web site constitutes acceptance of the Terms Of Use and Privacy Policy | User published content is licensed under a Creative Commons License.
Copyright © 2005-2011 Free Articles by ArticlesBase.com, All rights reserved.
