Some consumers have found that the edges of silicone products are damaged and cracked after purchasing them, which often troubles many friends and leads to a certain level of awareness and demand for silicone products in the future, resulting in a lower purchase rate. However, addressing the issue of edge damage in silicone products is not a last resort.
The edge damage of silicone products is called "bursting edge" in the silicone products industry, which is mainly caused by several phenomena. During the use of the product, the misalignment phenomenon is caused by severe stress and the influence of the mold, resulting in slight damage to the silicone product and gradually increasing wear in the future. Secondly, the product itself has its own damage phenomenon. During the production and processing of silicone manufacturers, product damage is caused by temperature and material fixing problems. In addition, the hardness, softness, and curvature of the product also have a certain impact. Therefore, the causes of product damage can be controlled in various aspects!
1.Hardness issues are common in low hardness silicone products, and the main phenomenon of low hardness lies in the parameter adjustment of silicone product manufacturers, such as the temperature and secondary exhaust of the machine. Therefore, it is important to set the parameters of the machine, reduce the temperature, shorten the vulcanization time, and control the molding processing time of the product just at the stage of curing completion. If the time is too long, the raw material in the machine will expand, causing separation at the parting position and leading to cracking.
2.Raw materials are the key to silicone products. If the raw materials are not mixed for a certain period of time during the production process or if the added additives are insufficient, it may lead to various problems in the production process, such as edge bursting, poor fluidity, product bulging and deformation, etc.
3.The structure is relatively complex, and the phenomenon of edge breakage in products is also relatively large. In addition to hardness, the phenomenon of edge breakage in silicone products is usually closely related to the structure of the product in cases of low hardness. For example, the product is relatively thick, has a certain curvature, and the parting position is at the high point of the product. Therefore, strict control of its parting position is required during product design.
4.The mold is the key to the edge damage of silicone rubber products. During the development of the mold, the problem of product damage has not been solved due to inconsistent and misaligned connections between the upper and lower parting points. Therefore, strict control is needed in mold processing.
5.Other exceptional factors can also cause product edge breakage, such as improper control of the weight of the rubber material (too heavy can lead to edge breakage, while too light can lead to material and corner shortages, so controlling the weight within a reasonable range can reduce the probability of edge breakage). Secondly, in the long-term production process without intervals, the mold temperature should be appropriately reduced to maintain a certain temperature range (spraying the mold with clean water to maintain the mold temperature without intervals)
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