Difference Between Plastic Extrusion and Injection Molding

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Difference Between Plastic Extrusion and
Injection Molding

• Plastic products have become very popular among
  the people in the last few decades. We might all
  have at least a dozen plastic products in our
  house. We all use plastic, but how much do we
  know about the production process? There are
  multiple ways to manufacture plastic. The two
  most popular procedures adopted for manufacturing
  plastic are Injection Molding and Plastic
  Extrusion. Injection Molding Machines are used
  for Injection Molding, a process where plastic is
  heated into a mold, then cooled down and
  solidified. The process of Plastic Extrusion
  forms a continuous profile by melting down the
  raw plastic. 
• Injection Molding - A Brief Introduction!
• Injection Molding is a plastic manufacturing
  process that was invented by Joseph Brahman in
  the year 1795. Although, the hydraulic press was
  first invented by Thomas Burr in 1820. Which
  means that the entire process of injection
  molding was only patented on paper till 1820. The
  entire procedure was refined by the use of copper
  and brass alloys in the year 1894, which led to
  the development of the Injection Molding process
  that we use today. However, it was not till the
  1930s that Injection Molding became a well-known
  process for Plastic Manufacturing. There are
  various Injection Molding Machine Manufacturers
  working on building the equipment today. 
• The method of Injection Molding is considered
  ideal when there is a mass-production of plastic
  products to be done. It is very helpful when it
  comes to manufacturing plastic products with
  complicated shapes. Due to the popularity of this
  method, the number of plastic injection molding
  manufacturers have been increasing.

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• Let us understand What Injection Molding Actually
  Is? - Plastic pellets are heated till they melt.
  Once they are malleable enough, they are injected
  into a mould cavity at certain pressure. Once the
  cavity is filled, it solidifies and produces the
  final product. 
• Plastic Injection Molding is considered a
  suitable method of thermosetting and
  thermoplastic polymers. Some of the plastic
  injection molding products are automotive parts,
  combs, toys, mechanical parts such as gears and
  so on. 
• Advantages of Plastic Injection Molding!
• Production is efficient and fast.Any complex
  design can be produced.Labour Costs are
  reduced.Material choice increases.Production
  output is very high.Above stated are some of
  the many advantages of Plastic Injection Molding.
  Once you invest in Injection Molding Machines,
  your production rate increases and your designs
  become flexible. With great precision and speed,
  plastic products can be manufactured. 
• Plastic Extrusion - A Brief Introduction!
• A rubber masticator was invented in 1820 by
  Thomas Hancock to reclaim processed rubber
  scraps. In 1836, a two roller machine to mix
  additives into rubber was developed by Edwin
  Chaffee. The process of Plastic Extrusion was
  only successfully carried out in the year 1935.
  Paul Troester and his wife Ashley Gershoff were
  the first people to carry our first thermoplastic
  extrusion in Hamburg, Germany. 
• In the Plastic Extrusion process, the polymer
  material is enriched with desired additives. Then
  it is melted and formed in a continuous process.
  The finished products have a two-dimensional
  form. Pipe,Tubing, Deck Railings, Window Frames,
  Plastic Films, Sheeting and many more such
  products are produced with the help of Plastic
  Extrusion. These products are different then the
  Plastic Injection Molding Products.

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• Advantages of Plastic Extrusion!
• Low CostFlexibilityPost Extrusion
  AlterationsHigh Production VolumeContinuous
  Operation 
• These are only a few advantages of Plastic
  Extrusion, the actual list goes on and on. There
  is no way you can produce the atypical
  cross-sections products without using an
  extrusion method. You can give any kind of shape
  to any stiff or soft material using this
  process. 
• What are the differences between Injection
  Molding and Plastic Extrusion?
• Both Injection Molding and Plastic Extrusion are
  renowned in manufacturing of Plastic. Plastic
  Industry has never seen such efficient methods of
  manufacturing and producing plastic products.
  Invest in Plastic Extrusion as well as Injection
  Molding Machines for better production of plastic
  items.
• The methods, both of them, have their advantages
  as well as disadvantages. Though they seem
  similar to each other, they are two different
  processes. How? We will tell you! 
• Plastic Extrusion is used to create continuous
  linear plastic objects on high volume, while
  Injection Molding is used to make plastic items
  that are not in one line. Plastic Injection
  Molding Manufacturers usually use the method to
  produce three-dimensional plastic products. The
  Plastic Extrusion process does not produce
  three-dimensional items. It is used to
  manufacture two-dimensional continuous linear
  products.Injection Molding is one of the oldest
  processes of Plastic Manufacturing. In comparison
  to Injection Molding, Plastic Extrusion has been
  in practice for less time. 

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• Products manufactured with Injection Molding
  Machines are stronger and reliable. Extrusion
  manufactured products do not have the same
  strength.The injection molding method is based
  on molten die casting method, while plastic
  extrusion simply uses molten plastic to form
  two-dimensional continuous products.Injection
  Molding is expensive in comparison to Plastic
  Extrusion. 
• There is no good or bad method. Both the methods
  of Plastic Manufacturing have their own history,
  procedures, requirements, advantages,
  disadvantages and expenses. There is no question
  of Injection Molding Vs. Plastic Extrusion.
  Both these procedures have their own uses. You
  can not use Plastic Extrusion to create
  three-dimensional Products. In the same way,
  Injection Molding will not help if your
  requirement is of a linear plastic item, such as
  pipe. Each method has its unique place in the
  plastic manufacturing industry. 
• ConclusionThere are various Plastic Extrusion
  as well as Injection Molding Machine
  Manufacturers. Since these processes are used
  world-wide and to a great benefit, services of
  both these methods are available everywhere. Yet,
  it is always better to consult an experienced
  professional company who has been working in the
  field for a considerable amount of time.  
• Milacron India manufactures Injection Molding
  Machines for your requirements. We have the
  required knowledge, skills, hands and tools to
  guarantee you quality-intensive products and
  services. To get your own Injection Molding
  Machines, get in touch with Milacron India now.
  You can always visit our website and check out
  our products!
• Original Source https//penzu.com/public/93e6a0
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