How much do you know about the manufacturing process of silicone mobile phone case?

At present, mobile phone has become an indispensable tool in people's life. In order to avoid wear and tear in the use of mobile phone, the use of mobile phone shell is very important. Because of its characteristics, silica gel mobile phone shell can well protect the mobile phone, and its softness will not scratch the mobile phone to a certain extent. How much do you know about the manufacturing process of silicone mobile phone case?
1. Material preparation
Silica gel mobile phone case is a mobile phone case made of silica gel material, and the silica gel material itself is translucent, and its state is like playing with plasticine after hours. In order to make a colorful mobile phone case, you must add corresponding colorant to the silica gel material, that is, the color masterbatch (color paste) in the industry. Only when the pure silica gel material with color masterbatch can not meet the forming conditions of silica gel mobile phone case, it is also necessary to add bridging agent (vulcanizing agent) and mix and disperse the color masterbatch and bridging agent evenly in the rubber mixing machine. Finally, cut out the size and weight required for forming, and then you can carry out the next forming work.
2. Molding
The raw materials required for silicone mobile phone cases have been prepared. Now these silicone raw materials can be "shaped", that is, vulcanization molding, which is often said in the industry. First, fix the molding die of silicone mobile phone cover on the vulcanization molding machine, and set the temperature, pressure, time and other parameters required for molding. After the temperature of the molding machine reaches the set value, discharge the prepared silica gel mobile phone cover raw materials into the molding mold, and operate the molding machine to press and vulcanize. When the vulcanization time reaches the required time, the silica gel raw materials have been fixed in the shape of the mobile phone cover. At this time, open the mold and remove the silica gel mobile phone cover from the mold.
3. Trimming
After the silicone mobile phone cover is taken out of the molding die, there are still some burrs that will affect the appearance of the mobile phone cover. You need to trim the burrs with a blade or scissors. This process is trimming, or removing and processing. The trimming of silicone mobile phone cover is a purely manual operation, which requires the operator to be careful and patient. If the operator is not careful, it is easy to cause incomplete trimming of the rough edge and affect the appearance of the silicone cover. If he is not patient, it is easy to trim the defect or even crack the silicone cover. Therefore, almost all the people engaged in the trimming of silicone mobile phone cover are careful and patient MM!
4. Secondary sulfur addition
In order to remove the peculiar smell of bridging agent added in the raw material of silica gel mobile phone case and stabilize the size of silica gel case, it is necessary to add sulfur to the mobile phone case after trimming, which is usually completed by baking in a vertical oven at 180 ℃ for 2 hours. If it is a silicone sleeve that does not need printing and spraying treatment, it can be packaged and shipped after secondary sulfur addition.
5. Surface pattern making
When many people buy mobile phone cases, they will find that many silicone mobile phone cases on the market have very beautiful patterns or patterns. In fact, these are made through surface silk screen printing, oil injection, radium carving and other processes.