AB silicone is often called (alias) the same type of glue as injection molding silicone, liquid molding glue, liquid injection glue, injection glue, injection glue, liquid silicone, etc. AB silica gel is divided into precipitation method and gas phase method according to the production process. What is AB silicone? AB silica gel is composed of vinyl monomers added with silica and other additives. The two components of AB are in a 1:1 ratio. Various silica gel products are injected by an injection molding machine and are injection molded silica gel. The best preparation ratio of AB silicone is 1:1. This ratio has good fluidity and is very suitable for injection. The hardness range of AB silica gel is generally from 10°A to 80°A. The different hardness of AB silica gel is suitable for making different products. For example; (0~10)°A can be used to make headphones and sex products; 30°A can be used to make small sealing rings; (40~50)°A is suitable for medical catheters and silicone buttons; (50~70)°A is suitable for sports equipment handles and Kitchen utensil handle; special product 80 degrees (Sony camera frame, silicone positioning plug). It has been written above that various products require AB silicone with different hardnesses. Now let me talk about how to use AB silicone: First of all, the customer must have an injection molding machine, which many people also call an injection machine (plastic injection machines cannot be used to inject silicone). The injection machine has two AB pipes. After hydraulic extrusion, they merge into one pipe AB and mix with each other evenly. The temperature in the extrusion die is between 150-180 degrees. The previous molding technology will slowly be replaced by injection technology. Why do you say this? Because the advantages of injection glue are very needed by society in the future. Advantages of AB silicone (injection rubber): 1. Save labor and time, reduce costs 2. Save raw materials, high yield 3. Short molding time, high output 4. Environmentally friendly, non-toxic and odorless. What problems do customers usually encounter when using injection molded silicone? How to solve these problems? 1. Why do products change color after silicone molding? Answer: As time goes by after the silicone is formed, all silicone will oxidize. Colored silicone products usually do not see oxidation. (Antioxidants may be added to the liquid glue in the future) 2. What kind of hardness should be selected for the silicone gel? Answer: For silicone products, silicone of different hardnesses should be selected according to the size and size of the product to meet customer requirements. Generally, the hardness ranges from 10 degrees to 80 degrees. If the hardness of the product is less than 10 degrees, the tear strength will be low, but the elongation rate will be large and the deformation rate will be large. If the hardness is greater than 70 degrees, the tear strength will be poor, and the silicone will become brittle and easy to break or break. Generally, when the hardness of silicone is 30-50, the tear strength and tensile force are the best, including elongation, resilience, and physical properties will be at their best. 3. Can condensed silicone be used for injection? Is it necessary to have an injection machine to inject silicone? Answer: Condensation silicone cannot be injected. The reason is: the proportion of curing agent is too small and it is difficult for the injection machine to inject evenly. The most important thing is that heating will cause the product to become sticky and not dry. 4. During the operation of injection molding silicone, you can According to the requirements of the customer's products, you can choose the appropriate pigments and prepare a variety of colors for customers to use. Answer: Silica gel can be color-adjusted, but for additive silica gel, during the color-adjusting process, you must choose the appropriate pigment. Some pigments It will poison the addition type silica gel and the silica gel will not be vulcanized. For example, those containing organotin: N, P, S, heavy metal pigments. The injection machine is also an addition type silicone. Molding glue: product shrinkage rate 3 (heating 150-180 degrees, high temperature will cause high product shrinkage) Injection glue: product shrinkage rate