Prototype replication is one of the prototype processing methods, mainly used for small-scale prototype production. Its advantages are fast time, low cost, and very good market competitiveness. The materials that can be produced by replication include ABS, PP, PC, PMMA, POM, soft rubber, silicone rubber, and so on. 1 . Before making a silicone mold, it is necessary to make an original version, which can be made through CNC machining or 3D printing. Start making the silicone mold and mix the silicone and curing agent evenly The appearance of the mold silicone is a flowing liquid, with one component being silicone and the other being a curing agent. 2. Vacuum exhaust bubble treatment: After mixing the silicone and curing agent evenly, the vacuum exhaust bubble process should be carried out. The vacuum time should not be too long. Under normal circumstances, it should not exceed ten minutes. If the vacuum time is too long, the silicone will immediately solidify, causing cross-linking reactions and turning it into pieces that cannot be coated or poured.
Prototype replication sampling is the process of using an existing template to create a silicone mold in a vacuum state, and then casting it using PU material in a vacuum state. If there are relatively few samples that need to be manufactured, one can use replication skills to create them. The cost of replica manufacturing is low, but there will be a certain proportion of shrinkage in the prototype. The price of replica manufacturing prototype models is relatively lower compared to CNC. The PU materials for replication are divided into general PU, transparent PU, rubber, etc. The specific process is as follows: Original version: Before making the silicone mold, an original version needs to be made, which can be produced through CNC processing or 3D printing. Making silicone mold: After the original version is ready, start making the silicone mold. After eight hours of drying, cut open the silicone mold and take out the prototype. At this point, the silicone mold is ready. Injection molding: Inject liquid material into the silicone mold, dry it, and the lifespan of the silicone mold is approximately 10 times.
Process for making prototype molds: 1. Before making a silicone mold, it is necessary to make an original version, which can be made through CNC machining or 3D printing. Start making the silicone mold and mix it evenly with the curing agent The appearance of the mold silicone is a flowing liquid, with one component being silicone and the other being a curing agent. 2. Vacuum exhaust bubble treatment: After mixing the silicone and curing agent evenly, the vacuum exhaust bubble process should be carried out. The vacuum time should not be too long. Under normal circumstances, it should not exceed ten minutes. If the vacuum time is too long, the silicone will immediately solidify, causing cross-linking reactions and turning it into pieces that cannot be coated or poured.
