What is the pressing of the liquid injection?

Liquid pressing is a process that uses a subject of liquid silicone rubber to form products rather than thermoplastic resins used in other methods. In this process, an inert liquid silicone rubber is mixed with an activation catalyst outside the form before injection into the mold cavity. The activated silicone compound then solidifies in a heated form at which the finished product is released. The liquid pressing process creates high -precision and predictable media results that have specialized physical properties. The liquid material is forced or injected into a closed mold under pressure where it heals or solidifies and then is released or fired from the open mold. The main differences between this particular technique and others include the materials used to produce the finished product and external processes used for preparation. Silicone rubber used for liquid pressing is an inert fluid with low viscosity that remains in this state until it mixes with the activation agentor by catalyst and then heated or vulcanized. After activation and heating, the compound undergoes a chemical reaction that causes it to solidify and create the final production material.

The

device used to facilitate the pressing of the liquid consists of two or more tanks or Plungers, measuring units, mixing units, injection jets and forms themselves. One tank contains an inert base material and the other catalyst. Other additives or coloring books will then be included in other tanks. The outlets from all reservoirs of raw materials lead to a measuring unit that maintains a constant relationship between materials. The mixing station thoroughly combines all different materials and then feeds the mixed compound for the injection nozzle under pressure to injection into the mold.

Forms

are generally preheated to ensure uniform filling and complete the process of curing or vulcanization. Mixed compounds in the supply part of the systemThey are maintained at a lower temperature to prevent complete curing and resulting. The injection nozzle is usually equipped with an automated shutdown system to prevent leakage and overfilling of the mold. The nozzles can also be made of a spring loaded with pins to maintain higher injection pressures, which further help maintain the extruder channel without clogging. Due to the low viscosity of the materials used in the liquid pressing, all parts of the system must be well sealed to prevent leaks.

Silicone rubber compounds show excellent tensile characteristics, flexibility and heat -resistant properties. In addition, unique forming capabilities are possible with these materials that allow extensive coloring and transparency of the OPV product. These features are ideal for the production of seals, smooth surface flexible baby products such as pacifiers and nipples for feeding, medical equipment and kitchen dishes.