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Two-liquid glue filling machine is a machine that can realize automatic mixing and quantitative ratio of two-component glue. The equipment is mainly aimed at two-component glue and can be applied to two-component epoxy resin, two-component polyurethane, two-component silicone, etc. The popularization and application of double-liquid glue filling machine equipment reduces the human input of enterprises, speeds up and improves the production efficiency and product quality of enterprises.

With the maturity of automation technology and the improvement of fluid control technology, the accuracy and operation continuity and stability of the double-liquid glue filling machine have been greatly improved. In recent years, the power electronics industry has developed rapidly and the market demand is large. On the other hand, the maturity of the glue filling technology also expands the application field of the equipment. At present, double liquid glue filling machine is mainly used in led industry, power supply industry, electronics industry, instrumentation and other industries. The more direct purpose is to pour glue on the workpiece to ensure that all the functions required by the product can be realized, which can play the role of sealing, filling, bonding, heat dissipation, conductivity, etc. According to the actual application of glue, it also has different properties.

When silica gel is used, the double-liquid glue filling machine needs silica gel for addition reaction, that is, the silicon hydrogen bond in silica gel and the cinnamoyl bond undergo addition reaction. Because the addition reaction requires metal Pt as a raw material, when they are mixed, a compound is produced, which is an unstable substance. This mixture is susceptible to changes in the chemical structure or structure of the compound by certain substances. At this time, the catalytic activity of the silicon-hydrogen-silicon-vinyl bond is easily lost.

If the addition silicone rubber reacts with any substance (whether through surface contact or mixing) that can react with the catalyst "Pt" during the vulcanization or curing process, under normal curing conditions, the addition silicone rubber is not cured (The state before and after the reaction is still liquid), or the curing is incomplete (the elastomer or hardness required for the silicone rubber after curing or the surface becomes sticky after curing), this phenomenon is the catalyst "poisoning" phenomenon.

Silica gel itself has the characteristics of low temperature resistance, high temperature resistance, yellowing resistance, elasticity and strong adhesion. Therefore, silica gel, as one of the common glues of double liquid glue filling machine, plays an important role in the production of electronic communication industry! But once the silica gel is combined with organic matter of nitrogen, phosphorus, sulfur and other elements. It will quickly occur chemical reaction, that is, we often say that the phenomenon of silica gel poisoning in the two liquid applicator! So how to avoid the phenomenon of silica gel poisoning in double liquid glue filling machine?

An obvious feature of the silicone poisoning phenomenon of the double-liquid glue filling machine is that the silicone will not solidify. In order to avoid the phenomenon of silicone poisoning, in the use of double liquid glue machine should avoid contact with phosphorus, sulfur, nitrogen organic compounds, or in the use of double liquid glue machine to avoid the use of polyurethane, epoxy resin, unsaturated polyester, condensation room temperature vulcanized silicone rubber and other products. And our double liquid glue machine in the use of different manufacturers of silica gel, must use the original double liquid glue.

Silicone poisoning of double-liquid glue filling machine is a common phenomenon in the distribution equipment of electronic communication industry, that is, double-liquid glue filling machine. Don't worry, in order to better avoid the phenomenon of silica gel poisoning, we can follow the above steps.