Use of Liquid Silicone Rubber for injection molding
Apr 22, 2020 19:48
Molding has been relevant in the industrial scene from the 1950s and they have been instrumental in changing the course of a production. Although it took some time for the industries to adapt to the process, lately many manufacturers have shifted their production from metal to plastic. They attribute this change to the many benefits that can be enjoyed by working with plastic which includes decreased labor, increased revenue among others.
The idea behind molding is to mix resins with the plastic along with certain additives to improve the performance and the characteristics of the materials. The resins vary in quality based on the characteristic the manufacturer is looking for in the final product. One of the molding processes, the injection molding, uses Liquid Silicone Rubber (LSR) to produce good quality and durable parts.
Firms like Q Molding specializes in these molding practices which improve the durability, performance on the product For in-depth information on the services offered you can visit their website.
The idea behind it
To begin with, Liquid Silicone Rubber possesses great stability along with a low compression set, and an ability to withstand the extreme temperatures. These features are attributed to the material being high purity platinum cured.
The material is very durable as well and has an impressive chemical resistance against water, chemical solutions and even to some acids and alkalis. These features make the material ideal for the production of equipment like the hood of a car which is very close to the engine. A whole host of chemical and electrical properties along with an impressive temperature resistance make Liquid Silicone Rubber a favorite among manufacturers and users.
The most common use of Liquid Silicone Rubber is in products like sealing membrane, sealing connector, multi-pin connectors. The common characteristic of these products is that they require high precision to operate. The material is also used in bottle nipples, baking pans, etc. which require a smoother surface.
How is it done?
To begin with, injection molding using Liquid Silicone Rubber, you need to ensure that the silicone runs through a water-cooled barrel with a nozzle. This does not allow the silicone to cure. The liquid silicone is provided to the process in barrels, with preferably two barrels. Colorants are mixed with this input to improve the features of the final product.
The mixture enters an injection molding barrel using a shut-off valve. This cold mixture is added to the hot mold by passing through the nozzle of the injection molding barrel. This addition is done in measured quantities to ensure efficiency.
After this, parts are added or removed based on the production needs. After every molding process, the components are made ready for another round of processing. Proper cleaning and maintenance are essential to ensure that these components have a long life-span.
The molding will be a giant in the industrial field in the upcoming days. More and more efficient molding methods will be discovered. Using Liquid Silicone Rubber for injection molding is one of the best molding processes that the manufacturer can opt for. You can contact various manufacturers regarding the process and the expense that goes into the process, for proper analysis.
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