Why The World Needs An Automated Silicone Rubber Molding?


Compression molding is the technology that combines heat and force to form different shapes from given raw materials inside a metal mold. While trapped in the mold, a given raw material would undergo severe heating until it becomes pliable enough for forming a given shape. Usually, the molded product accumulates an excess of matter (referred to as flashing) that got extruded during the heating and forcing (compression) stage inside the mold. Thus, in order to maintain a precise product dimension, this flashing would need to be ‘scraped off’ by a highly experienced team after the process of compression molding.


The basic raw material for compression molding is rubber. The choice of rubber is due to its many advantages over other materials such as strength, malleability, minimum rigidity, and stress withstand ability.

Because there’s hardly any industry all over the world that does not use compression molding products, there’s the need to refine the silicone rubber molding and practices. This will help sustain a reasonable stock of compression molding final products all the time.

Processes Involved in Compression Moulding

To turn out highly desired products from the compression molding technology calls for great manufacturing practices known as processes. A process can be defined as a series of step by step activities executed to convert inputs (raw materials) into outputs (final products). However, it is important to note that processes, when not done with precision, can mar the final products and render them useless. The following are processes involved in compression molding:

·         Step 1: Provision of raw materials
·         Step 2: Provision of molds or shapes
·         Step 3: Pressure or force is applied to force raw material into the mould
·         Step 4: Mould is properly closed and temperature (heat) applied
·         Step 5: The raw material is now in liquid form and is allowed to solidify (cure)

It is important to note that each of the above-listed processes calls for special approaches and techniques for the desired product to emerge. Such techniques border on precision, accuracy, and efficiency for quality end products. Furthermore, these techniques involving highly repetitive processes can be very demanding on the human operators in charge. This is why there is a need for an automated approach. This automated approach involves the use of programmable logic controllers (PLCs) in virtually all aspects of the process execution.

Types of Raw Materials Used For Compression Moulding

There are basically two types of raw materials used. They are:

·       Thermoset plastics: These raw materials set into whatever desired shape after heat treatment and will never become malleable again with heat application. Examples of thermoset plastics include polyurethane, unsaturated polyesters, etc.

·         Thermoplastics: Another type of raw materials are those classed as thermoplastics. These types harden with heat application and readily become malleable again each time heat is applied. Examples of thermoplastics include polyethylene, polypropylene, polystyrene, etc.

Advantages of Compression Moulding Technology

One unique advantage of compression molding lies in its minimal expense. It also makes possible mass production of finished products. Compression molding is also highly efficient resulting in negligible wastes of material and energy.

What the Future Holds For Compression Moulding

As already noted, there’s hardly any industrial application that cannot be associated with compression molding components. This is a measure of the indispensability of compression molding. Consequently, research is into ways of preventing flashing during compression molding. Fortunately, the advent of computer technology raises so much hope in the areas of process automation (for minimal labor).

The extreme applications of compression molding technology all over the world call for a highly refined and automated silicone rubber molding. This way, as already existing compression molding products are exhausted, newly manufactured ones will be quickly deployed making industry operations seamless.

Owing to the great relevance of compression molding, interested researchers are encouraged to visit the following link nicerapid.com.

No comments

Powered by Blogger.