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- 日期: 2014-01-18
- 浏览次数: 1497次
Silicone mold is fast mold in a most simple method is generally used to prototype complex silicone mold, but life is very short, only 20 or so. It has good flexibility and replication performance, replication does not affect the dimensional accuracy of the mold silicone rubber, have a good severability, not the upper and lower mold, can be directly cast. Thence along a predetermined parting line cutting master mold can be removed.
RTV silicone rubber is divided into two kinds of add molding and condensation.
Using special silicon rubber mold, the line is sold in a two-pack, 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 weight ratio of AB group formulated. Room temperature 20-25 degrees, A: B = 100: 1.5. Appropriate increase in group B component 0.1-0.3 parts of chamber is low. High temperature decreased Group B 0.1-0.3 copies. The specific method is determined according to the total amount of silicone mold volume, then A, B component in proportion accurately weighed, placed in containers Stir and serve.
Molding: the deployment of a good material to be poured into the imitation of the kind can be cleaned. In order to save material, made thin mold silicone products, can be divided into sub-brushing. To increase the tension mold can paste gauze 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 silicon rubber mold, the line is sold in a two-pack, 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 weight ratio of AB group formulated. Room temperature 20-25 degrees, A: B = 100: 1.5. Appropriate increase in group B component 0.1-0.3 parts of chamber is low. High temperature decreased Group B 0.1-0.3 copies. The specific method is determined according to the total amount of silicone mold volume, then A, B component in proportion accurately weighed, placed in containers Stir and serve.
Molding: the deployment of a good material to be poured into the imitation of the kind can be cleaned. In order to save material, made thin mold silicone products, can be divided into sub-brushing. To increase the tension mold can paste gauze like. At room temperature for 2 hours to 20 degrees into the elastomer, the day after can be used.