Wednesday, March 12, 2014

Methods Used In Production Of Structural Foam

By Jaclyn Hurley


Technology has evolved leading to the emergence of new methods that can be used in manufacture of plastics. Structural foam molding is one such process that is being used in production of different types of plastic components. All components made from this particular process will usually have an outer surface that is very different from the inner one. This is mainly because of the fact that the outer surfaces tends to have a denser core than the inner ones.

Typically, there are certain materials that are used. The materials will then result in the production of products such as business machine housings. Other products include container pallets and point of sale displays. Business machine chassis components are also produced using this particular type of molding.

Production can be done using any one of four main methods. The main methods include use of low pressure, combination of different molding tools, and even conventional molding tools. Typical molding process can also be used during the production phase.

The low pressure process involves the use of dedicated injection machines. This machine will introduce a stream of gas in to the plastic that has already been melted. Once it has been injected in to the mold closed tool, it will subsequently form the material of that particular component that is being produced.

Molding machines can also be used in production of these types of plastics. When using these machines, blowing agents are going to be introduced in to all the materials that are being used in production. The heat emanating from the melted plastic makes all the agents to combine and react resulting in formation of plastic.

Another method that is often used is that of typical moldings. The typical moldings are in many cases used in producing larger components. Even though the method is effective, its main drawback is that the resulting products tend to have a surface that is rough and quite streaky.

Low cavity pressure can also be used in combination with different mold tools. The pressure is used on different materials including cast steel and cast aluminum. Compared to other methods this method has been known to be the cheapest of them all.

This kind of foam comes with a number of benefits. For instance, it can be used to replace concrete, wood and even metal. This replacement would bring about a significant reduction in the costs incurred while resulting in increased productivity.

Structural molding has its own set of benefits to those who choose to use it. This is a process that leads to production of very sturdy and thick items. In addition to being strong, all end products can be recycled and used again in production of other components.

Another advantage is seen in the type of machines that are used. The systems commonly known as front runner systems are easier to adjust allowing for different types of flows. They can also be assembled and dissembled very quickly. All this is done with the intention of meeting the different types of part requirements in place.




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