Requirements in Producing Custom Moulded Rubber Products
The creation of a products that would include moulded parts would need a design drawing for manufacturers to follow. Through the design, specifications are identified that are important in producing the custom moulded rubber parts and products. Just like the architectural blueprints, the drawing specifies the pattern and all elements of the design. Therefore, the design specification drawing is what these manufacturers of silicone moulding would look at so that they will have an idea on what the moulded silicone parts would look like once done. The specification drawing would show the size, shape, colour, thickness, material and pliability of the design.
One of the most used way of giving design specifications to manufacturers of silicone moulding is by computerized programs. A product engineer will be able to create a two dimensional and three dimensional drawings with the sue of some software, and then these drawings are saved in an electronic file. With the use of compression moulding or liquid silicone injection steps, a manufacturer of the parts can convert the digital mechanical designs into a real life custom rubber parts, after reading this electronic file format.
An example of parts is the design of military rubber keypads, of which the dimensions are described and laid out on the specification drawing, and these specifications are the height, width and thickness of the design of the parts. On the specification drawing, the required materials, colour and printing process involved like the ink colours, are placed. All requirements when manufacturing military rubber keypads are specified to ensure production of all parts are uniform and within tolerance.
The assistance from the rubber moulding engineers of a manufacturer could help new designers of products like custom keypad technology. By provide set of standards and design recommendations, these engineers can help guide new designers. Know that in designing products that include keypad technology, you would need a minimum key pitch dimension of 0.080, and that the clearance between a key and a bezel could be 0.012. When the mechanical design specifications are followed, a quality custom keypad can be manufactured. Know also that there specific recommendations of the distance from the edge of the matte of the keypad to the diaphragm of the keypad.
If you are the manufacturer, it is also important that you know what are involved in the use of coatings. The moulded silicone parts, depending on their intended use, are to be coated with abrasion resistant, chemical resistant or conductive coatings. With these coatings, the parts will be given extra protection from the environment. Aside from making the parts last longer, coatings would improve also the performance of the parts. Especially in rugged conditions, these coatings will aid on military rubber keypads.
In order for a manufacturer to create the required moulds, all of these necessary information have to be supplied.