In the processing process of silicone rubber manufacturing enterprises, the production processes of silicone products are different. At present, the majority of silicone medical products are produced by high-temperature molding, which is formed by high-temperature mold up and down, while the products are formed under the pressure after the mold is cured, resulting in the failure of normal demoulding or demoulding of product mold adhesion. Demoulding difficulty is a common problem for manufacturers of silicone rubber products. During the manufacturing process, any mold with complex product structure is easy to cause the phenomenon that the mold can not be demoulded normally. In addition to silicone rubber products, are there any other types of silicone rubber products with demoulding difficulties? In processing, the mold is the core to solve the demoulding problem, and several methods can be taken to deal with it.

First, the customized manufacturers of silicone rubber medical tubes with insufficient finish after mold surface processing need to sand blast the mold. Different product mold surfaces have different requirements, which can be treated with fine sand, coarse sand and other different sands.

The second is to wash the mold. To a certain extent, the semi cooked rubber of the product stained with the mold due to the long-term influence of temperature can not be cleaned. This is to use mold washing water to clean and remove the residues at the stained position.

Third, electroplating is adopted. The mold surface is finely polished, which can also be understood as polishing and precision sand blasting. The fine particle size of the mold is higher, so that the silicone rubber material can not stick to the mold. This method has the best effect and long pressing life

Four spray Teflon is a commonly used process. It pastes a layer of chemical layer on the surface of the mold to ensure that the surface of the mold is flat and there is basically no adhesion in the production process. However, this method has basically no adhesion in the production process and is not suitable for long-term production of dark products. Moreover, this method has low cost and good effect.

Manufacturing process

In the production process, silicone rubber products need to maintain uniform temperature, vulcanization time and operation molding time for a long time to avoid product mold sticking due to time error. Secondly, in the production and operation process, it is necessary to maintain uniform temperature, vulcanization time and operation molding time on the mold surface at all times, so as to avoid mold sticking of materials.

Bench commissioning and processing

Many silicone rubber medical products have been stuck to the top in the production process and do not occupy the lower mold. In the case of upper and lower molds, it is necessary to pick up the goods from the inner side of the machine equipment, which is delayed in time efficiency. The main reason is that the mold dipping temperature of silicone rubber products is high and the demoulding temperature is high. It is necessary to pick up the goods from the inner side of the machine equipment, resulting in the low mold dipping temperature of silicone rubber products, resulting in the low temperature.

In addition to the above points, there are other uncontrollable factors in the demoulding of silicone resin molding process. Therefore, try to process the demoulding of the product according to the rules to avoid mold sticking, and deal with the mold surface well, which can not only improve the processing efficiency, but also ensure the quality of the product as much as possible.