It is due to the comparatively simple manufacturing process as well as the low cost of silicone molds that are made of two-component polyurethane plastics this method is your more frequently in manufacturing. Another advantage of small-batch production is that it eliminates the need to order expensive and intricate metal molds and wait months for them to be completed.
Why? Because when it comes to producing a trial batch of parts, an exhibition sample, or a functional prototype, mass production manufacturing isn’t the most cost-effective manner of doing so. When you detach the elastic form from its master model and pour the right material into it, it is much easier to work with it (or use 3D printing). Furthermore, due to a large number of polyurethane combinations available, it is feasible to produce polymers alloys with virtually any property.
Furthermore, in addition to the traditional manual casting of liquid polyurethane, there are industrial technologies that make use of special vacuum casting machines to cast high-quality parts without any bubbles but only in smaller quantities over the course of a production cycle.
The formwork for pouring the silicone mass can literally be constructed out of improvised materials if necessary. The quality of the silicone itself, as well as the consistency with the technology and other intricacies of the process, are more crucial in this case.
Since the inception of this technology, companies have worked to perfect the process of vacuum casting in silicone molds, and the full technological chain has been established, from the purchase of a computer and master model to the delivery of a final product that has passed quality inspection.
silicone molding plastic parts*
Vacuum casting for large objects
Some companies can provide services for the production of plastic parts, housings, and other goods based on the customer’s drawings and 3D models, as well as the large-scale casting of plastic items. For example, car bumpers, panels, and dashboards for automobiles. This technology is really excellent at creating massive things without gluing them together.
Plastic carcass for electronics
The difficulty of finding effective, practical, and long-lasting carcass frequently arises during the development and small-series production of electronic equipment. The plastic carcass for medical equipment parts must match the purpose, size, and shape of the electronic filling, as well as have an appealing look and unique design.
Process of making plastic casting
Plastic carcass inline production is only economically justified for big series (over 1000 pieces) and certain pricey systems. It is far more cost-effective to use vacuum casting for small series or one-off pieces (20 to 500 pieces).
You may create items for a range of uses, including:
- Plastic carcass for medical equipment;
- Industrial electronics housings;
- Your own polymer products and original design
Vacuum casting companies can make your product out of drawings or a finished sample of the product, from which a 3D computer model will be modeled. Calculations and manufacturing preparation are greatly accelerated when the buyer has his own digital model of the product at his disposal.
Reference
*Image from https://shanggomodel.com/