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- Date: 2014-01-18
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Rapid mold silicone mold is a most simple way is generally used to prototype complex silicone mold, but life is very short, only 20 or so. It has good flexibility and replication performance, copy mode does not affect the dimensional accuracy of silicone rubber, have a good split resistance, not the upper and lower mold, can be directly cast. Then along a predetermined parting line cutting Remove master it.
RTV silicone rubber is divided into two kinds of add molding and condensation.
Using special silicone rubber mold, the strain in the form of a two-pack sale, A group is a plastic material, the group B is a catalyst. To consider the preparation room, mold strength and hardness, in order to determine the ratio of the weight of the preparation of AB group. Room temperature 20-25 degrees, A: B = 100: 1.5. Appropriate increase in component B 0.1-0.3 parts room is low. High temperature decreased Group B 0.1-0.3 copies. The specific method is determined according to the volume of the total volume of silicone molds, then A, B component in proportion accurately weighed, placed in containers Stir and serve.
Molding: The deployment of good material, the pour to be kind to clean imitation. In order to save material, made thin mold silicone products, can be divided into sub-brushing. To increase the tension of the mold can paste gauze and the like. At room temperature for 2 hours to 20 degrees into the elastomer, the day after can be used.
RTV silicone rubber is divided into two kinds of add molding and condensation.
Using special silicone rubber mold, the strain in the form of a two-pack sale, A group is a plastic material, the group B is a catalyst. To consider the preparation room, mold strength and hardness, in order to determine the ratio of the weight of the preparation of AB group. Room temperature 20-25 degrees, A: B = 100: 1.5. Appropriate increase in component B 0.1-0.3 parts room is low. High temperature decreased Group B 0.1-0.3 copies. The specific method is determined according to the volume of the total volume of silicone molds, then A, B component in proportion accurately weighed, placed in containers Stir and serve.
Molding: The deployment of good material, the pour to be kind to clean imitation. In order to save material, made thin mold silicone products, can be divided into sub-brushing. To increase the tension of the mold can paste gauze and the like. At room temperature for 2 hours to 20 degrees into the elastomer, the day after can be used.