Detailed explanation of the process of silicone rubber encapsulated products
I believe everyone is no stranger to silicone rubber products, and there is not much gossip. Today we will talk about the process flow of silicone rubber encapsulated products. The main ones are the encapsulation process of silicone rubber and plastic, and the encapsulation of silicone rubber and hardware. Glue process.
Encapsulated products
The silicone rubber encapsulated products we are talking about are not the kind that prepare the encapsulated parts and the molded silicone rubber products first, and then assemble them together, but first make the plastic or hardware parts, and then put the silicone rubber in. The mold is positioned, and then the silicone rubber material is put in for secondary molding. Compared with the general glue, or put together, it has the advantages of high dimensional accuracy, firm bonding and not falling off.
Rubber encapsulation
There is also a liquid silicone encapsulation process, commonly known as LSR. Similar to plastic encapsulation, but this type is only suitable for silicone encapsulation. The cost of this process is high, and the cost of the mold is also high. It is generally used for large-volume, high-precision silicone rubberized products.
Rubber coated aluminum alloy
Regardless of whether silicone or rubber is combined with hardware, such as stainless steel, aluminum alloy, etc., special attention must be paid to the surface treatment of the hardware, and degreasing treatment is required if necessary. This is related to the adhesion between silicone rubber and hardware, and the hot vulcanized glue used for different German silicone rubber materials is different.