A BRIEF STUDY ON PLASTIC INJECTION MOLDING PROCESS
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
project report helper
Active In SP
**

Posts: 2,270
Joined: Sep 2010
#1
08-10-2010, 12:25 PM



.doc   Final Report-Plastic Injection Molding.doc (Size: 1.84 MB / Downloads: 610)

A BRIEF STUDY ON PLASTIC INJECTION MOLDING PROCESS

ABSTRACT:

Injection molded components are consistently designed to minimize the design and manufacturing information content of the enterprise system. The resulting designs, however, are extremely complex and frequently exhibit coupling between multiple qualities attributes. Axiomatic design principles were applied to the injection molding process to add control parameters that enable the spatial and dynamic decoupling of multiple quality attributes in the molded part. There are three major benefits of the process redesign effort. First, closed loop pressure control has enabled tight coupling between the mass and momentum equations. This tight coupling allows the direct input and controllability of the melt pressure. Second, the use of multiple melt actuators provides for the decoupling of melt pressures between different locations in the mold cavity. Such decoupling can then be used to maintain functional independence of multiple qualities attributes. Third, the heat equation has been decoupled from the mass and momentum equations. This allows the mold to be filled under isothermal conditions. Once the cavities are completely full and attain the desired packing pressure, then the cooling is allowed to progress.

INTRODUCTION:
Injection molding is the most commonly used manufacturing process for the fabrication of plastic parts. A wide variety of products are manufactured using injection molding, which vary greatly in their size, complexity, and application. The injection molding process requires the use of an injection molding machine, raw plastic material, and a mold. The plastic is melted in the injection molding machine and then injected into the mold, where it cools and solidifies into the final part. The steps in this process are described in greater detail in the next section.


Reply
plastic machinery
Active In SP
**

Posts: 1
Joined: Oct 2010
#2
20-10-2010, 01:45 PM

Nowadays,plastic products have been widely used in a unimaginated range. So

plastic moulds and plastic injection molding machines are also needed by a

lot of manufacturers.But do you know how to choose a plastic injection

molding machine? If not,please visit at plasticmachine.blogoak?

blogname=plasticmachine&postarch=1.Big Grin
Reply
project report helper
Active In SP
**

Posts: 2,270
Joined: Sep 2010
#3
26-10-2010, 03:29 PM



.pdf   How to choose plastic injection molding machine.pdf (Size: 79.8 KB / Downloads: 301)
How to choose plastic injection molding machine


Typically, the important factors when choosing plastic injection molding
machine include mold, product, molding requirements and so on. Therefore,
you must collect or have the following information before making a choice:
mold dimension (width, height, thickness), weight and special design; types
and amount of the plastic (single or multiple plastic materials); dimensions
and weight of injection molding product (length, width, height, thickness);
molding requirements, such as quality condition, production speed and so on.
In obtaining the above information, you can follow these steps to choose a
suitable plastic injection molding machine:
Reply
project topics
Active In SP
**

Posts: 2,492
Joined: Mar 2010
#4
08-04-2011, 03:42 PM

you are need to read following reports to get better idea about injection moulding and similar process (some page posses report and ppt)
topicideashow-to-a-brief-study-on-plastic-injection-molding-process?mode=linear
topicideashow-to-fabrication-of-plastic-injection-moulding-device
topicideashow-to-how-to-choose-plastic-injection-molding-machine
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply
seminar class
Active In SP
**

Posts: 5,361
Joined: Feb 2011
#5
09-04-2011, 03:29 PM


.ppt   Injection_Molding1.ppt (Size: 2.76 MB / Downloads: 486)
Short history of plastic
1862 first synthetic plastic
1866 Celluloid
1891 Rayon
1907 Bakelite
1913 Cellophane
1926 PVC
1933 Polyethylene
1938 Teflon
1939 Nylon stockings
1957 velcro
1967 “The Graduate”
Readings
Tadmore and Gogos
 Molding and Casting pp584 -610
Boothroyd Dewhurst
 Design for Injection Molding pp 319 - 359
Kalpakjian see Ch 18
Injection molding case study;Washing machine augers; see on web page
Process Operation
Temperature: barrel zones, tool, die zone
Pressures: injection max, hold
Times: injection, hold, tool opening
Shot size: screw travel
Part design rules
Simple shapes to reduce tooling cost
 No undercuts, etc.
Draft angle to remove part
 In some cases, small angles (1/4°) will do
 Problem for gears
Even wall thickness
Minimum wall thickness ~ 0.025 in
Avoid sharp corners
Hide weld lines
 Holes may be molded 2/3 of the way through the wall only, with final drilling to eliminate weld lines
Reply
chetanchougule.a10@gmail.com
Active In SP
**

Posts: 2
Joined: Feb 2012
#6
17-02-2012, 12:20 PM

i want to givi presentation for injection moulding,so send me ppt for injection moulding
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  MOLDING TECHNIQUES AND ITS MACHINES MANUFACTURERS ppt seminar projects maker 0 395 26-09-2013, 12:23 PM
Last Post: seminar projects maker
  EXPERIMENTAL STUDY OF ALUMINIUM AND STAINLESS STEEL METAL MATRIX COMPOSITE REPORT study tips 2 1,272 05-09-2013, 10:21 AM
Last Post: study tips
  MANUFACTURING PROCESS OF A PISTON ppt study tips 0 965 20-08-2013, 01:08 PM
Last Post: study tips
  Introduction of Unconventional Manufacturing Process study tips 0 484 14-08-2013, 02:10 PM
Last Post: study tips
  Study of Desert Cooler study tips 0 339 10-08-2013, 12:59 PM
Last Post: study tips
  Study of Pulse Tube Cryocooler study tips 0 405 10-08-2013, 12:57 PM
Last Post: study tips
  Study of Steam Jet Refrigeration study tips 0 405 10-08-2013, 12:54 PM
Last Post: study tips
  Study of Magnetic Refrigeration study tips 0 411 10-08-2013, 12:51 PM
Last Post: study tips
  Study of Laser Cooling study tips 0 380 10-08-2013, 12:48 PM
Last Post: study tips
  Study of Stirling Cryocooler study tips 0 269 10-08-2013, 12:47 PM
Last Post: study tips