1. Silicone is the flow of liquid, A is a silicone component, B component is a curing agent, curing agent addition was generally 2% -3%. A group of patients were taking 100 grams of silica gel, solid dose of 2 grams of curing agent added to silica, must be mixed evenly. (Note: the ratio of silica gel and the ratio of curing agent must be known in the electronic scales accurate. According to the local temperature conditions, 25 ℃ or so you can click here to add the curing agent ratio). If the local temperature of 10 ℃ in the case, add the amount of curing agent can be added up to 5%. If the local temperature of about 5 ℃ below zero, you add more of the curing agent does not react with silicone, for a long time will not be cured; If the local temperature at 38-45 ℃, when the same quality silicone, the same curing agent, curing agent added to 1% on it.
2. First you should copy the original model of the product or to handle. Because you copy the product or model without grinding or polishing, in fact, model or product itself is not smooth or perfect, do you use silicone mold is not good enough, the actual filling out of the products is not smooth enough.
3. Vacuum treatment, according to a certain amount of percentage, the silicone and curing agent Stir, for vacuum processing. Because silicone and curing agent mixing time bubble, if not do vacuum processing, the bubbles out of it, to make the silicone molds have many holes, mold itself to reduce tension, fewer molds from the mold itself is not smooth a direct impact on product quality.
4. Slice die or chip mode operation method: the smoked silica gel to brush or vacuum infusion construction methods. If you do film mode or sub-piece molds are used way of brushing before painting your first model to be copied products or brushing on a layer of release agent or release agent, then brushing the product above silica gel ( Note: Be sure to brush even) wait 30 minutes, the paste surface layer of gauze or glass fiber cloth to increase the strength of weft, and then brushing the second layer of silicone gel after drying, do outside the mold, mold can be used outside plaster or resin material.
5. Irrigation mode, or perfusion mode of operation methods: mold filling or perfusion mode, is used to compare smooth or simple product that you want to copy your product or model, with a plastic sheet or glass enclosed, will be pumped through a vacuum silicone directly into the product above until the silica gel drying molding, remove the product, mold on the forming of the (Note: The perfusion model commonly used to do hardness of softer silicone mold, so mold release easier and will not damage the silicone mold inside the product) , these are hand gel use and operation of the entire process. |
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