How to make the silicone rubber product parting line a little thinner?

The problem of the parting line of silicone rubber products is a problem that many silicone products manufacturers will encounter in the production process. In order to solve this problem, we can start from the following aspects to make the parting line of silicone rubber products more delicate.
First of all, by modifying the design of the mold, the parting line of the silicone rubber products can be made thinner. This may require a redesign of the mold structure and size to ensure that the silicone rubber flows more evenly during injection or extrusion, thereby reducing the size of the parting line. Therefore, we should choose high-quality materials to make molds, such as choosing high-precision steel, as well as wear-resistant, high-temperature mold materials. In addition, the structural design of the mold also needs to be fully considered to avoid sharp edges or uneven places to reduce the retention and extrusion of silicone in the mold, thereby reducing the generation of parting lines.

Secondly, the injection process is also an important factor affecting the size of the parting line. In the injection process, we need to control the temperature of the mold, too high or too low mold temperature may affect the fluidity and curing effect of silicone rubber, thus affecting the thickness of the parting line. In addition, we also need to pay attention to the fluidity of silica gel, select the appropriate silica gel material, and adjust the hardness and viscosity of silica gel according to product requirements to ensure that its fluidity and filling performance are good.
In addition to the mold and injection process, the choice of raw materials is also a key factor affecting the size of the parting line. We should choose silicone rubber materials with good fluidity and fast curing speed, which helps to reduce the formation of parting lines. We also need to pay attention to the proportion of raw materials and processing technology to ensure that there will be no bubbles, cracks and other defects in the curing process of silicone products, so as to reduce the generation of parting lines.
Finally, the post-treatment process is also an important means to reduce the size of the parting line. After the silicone rubber products are formed, post-treatment processes, such as trimming, grinding or cutting, can be used to further reduce the size of the parting line and make it more detailed. This requires the use of professional tools and equipment, such as knives, sandpaper, polishing machines, etc., which requires high manual operation. For mass production, consider using an automatic polisher or other equipment to improve efficiency.
To sum up, in order to make the parting line of silicone rubber products more delicate, we need to start from the design and production of the mold, the injection process, the selection of raw materials and the post-treatment process, etc., the parting line refinement can also improve the market competitiveness of silicone products. With the continuous improvement of consumer requirements for product quality and appearance, the market demand for high-quality silicone products is also increasing. Parting line refinement as one of the effective means to improve product quality, can help silicone products companies stand out in the fierce market competition, win the favor of consumers.