1、 Dimensional deviation and product deformation
Cause and solution: It is closely related to the production process of re molding, especially the temperature control of the mold. Other reasons such as the scaling ratio of the prototype and material shrinkage should also be well controlled. Products with a length exceeding 1.5 meters need to be made using reinforced molds
2、 The products produced cannot be assembled
Cause and solution: The drawings of product engineers are set based on the injection molding process of the mold, often without considering the difference between the re molding process and injection molding process. Due to the vacuum adsorption molding process, the precision of the product can be controlled within ± 0.1mm. For assembly products with higher precision requirements or hand tightness requirements, small batch production engineers need to make adjustments to the replica prototype, combined with post-processing assistance, to meet the assembly requirements
3、 Finished product becomes brittle and cracked
Cause and solution: The main reason is the use of domestically produced inferior materials and defects in the replication process. The first solution is to ensure that the channels for material procurement are guaranteed. If there are no problems with the materials, improvements should be made in the process, and attention should be paid to controlling the oven temperature, heating time, cooling time, cooling method, etc.
4、 Bubbles and hollow spaces
Cause and solution: The generation of bubbles in the replica product is related to the reaction between the silicone mold material and curing agent. When vacuuming, it is necessary to control the time, as too long or too short a time can easily produce bubbles. Additionally, it is related to the product structure and the position of the feeding port. The generation of bubbles on the surface of a product can greatly affect its appearance and material durability, so it is necessary to strictly follow the manufacturing process to effectively avoid them
5、 Lost product details
Cause and solution: In the production process of some relatively slender products, it is easy to lose details. The main reason is that the silicone mold is not baked well and is prone to deformation, resulting in the loss of details. In addition, during the process of making molds, damage to the prototype of the product directly leads to the loss of details in the replicated product. In addition to improving the process, it is necessary to carefully inspect every step of prototype polishing, mold making, and finished mold making in order to find a solution.
6、 Rough and uneven surface
Cause and solution: The quality of the replica product is closely related to the prototype, and it is necessary to improve the surface quality of the finished product. Firstly, the production process and surface effect of the prototype should be improved, and the prototype can be made through CNC. Additionally, the use of domestically produced inferior silicone can also lead to rough and uneven surface of the mold. The solution is to use imported silicone molds for production, select the most suitable process to make prototypes, and ensure the hardness, surface, and compatibility between materials.
7、 Color fading and surface orange peel after coloring
Causes and solutions: The discoloration problem is related to the flatness of the product surface, the selection of primer and topcoat, and is a problem involving multiple reasons. The main solution is to choose a primer that is compatible with the material, such as a two-component primer and automotive specific paint. Good paint can not only improve the surface effect of the product, but also increase its aging and corrosion resistance functions.
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