Why can polyamide nylon media-PA6 remove burrs while retaining the original structure of the material?
Publish Time: 2025-06-18
In modern manufacturing, surface treatment technology is essential to ensure product quality. Especially in the processing of plastics, rubber and composite materials, deburring is a key step. However, traditional sandblasting media such as glass beads or steel shots often damage the substrate while removing burrs, affecting the final quality of the product. In contrast, polyamide nylon media-PA6 can effectively remove burrs while retaining the original structure of the material to the maximum extent due to its unique physical properties and working principle.1. Flexibility and elastic modulusA notable feature of polyamide nylon media-PA6 is its flexibility. This flexibility comes from the polymer chain structure of the polyamide material itself, which allows the particles to deform to a certain extent when they hit the surface of the workpiece. Unlike hard sandblasting media, PA6 particles do not generate sharp impact force when they contact the surface of the workpiece, but remove burrs through gentle friction.In addition, PA6 particles have a moderate elastic modulus, which means that they can quickly return to their original shape after pressure is applied. When the particles hit the workpiece surface, this elastic property enables them to effectively remove burrs without damaging the substrate. For example, when processing soft plastic or rubber products, PA6 particles can adapt to the contour of the workpiece surface through slight deformation, avoiding surface damage caused by excessive impact.2. Impact absorption capacityIn addition to flexibility, PA6 particles also have excellent impact absorption capacity. During the sandblasting process, the particles hit the workpiece surface at a high speed, generating a certain amount of kinetic energy. If a hard medium is used, this kinetic energy may be converted into local high pressure, causing dents or cracks in the substrate. However, PA6 particles, due to their good impact absorption performance, can convert most of the kinetic energy into heat or other forms of energy, thereby reducing the direct impact on the workpiece surface.Specifically, PA6 particles will undergo a slight deformation at the moment of impact, which not only helps to disperse the impact force, but also buffers the contact between the particles and the workpiece to a certain extent. This buffering effect allows PA6 particles to remove burrs while avoiding irreversible damage to the workpiece surface, ensuring that the original structure of the material is retained.3. Low wear and selective grindingAnother important factor is the low wear of PA6 particles. Although PA6 particles are hard enough to remove burrs, their hardness is much lower than that of most metal blasting media. This moderate hardness allows PA6 particles to selectively grind protruding burrs when in contact with the workpiece surface without causing significant wear to the substrate itself.The key to selective grinding lies in the way the PA6 particles interact with the workpiece surface. Burrs are usually slightly higher than the substrate surface and have sharp edges. When PA6 particles hit these burrs, due to the optimized design of their shape and hardness, the particles are able to concentrate their strength to remove these protrusions while having relatively little impact on the substrate. This selective grinding mechanism ensures the overall flatness of the workpiece surface while retaining the original form of the material.4. Multi-angle coverage and uniform treatmentPA6 sandblasting particles are usually cylindrical, and this geometry gives the particles better fluidity and multi-angle coverage capabilities. During the sandblasting process, the particles can hit the workpiece surface from multiple directions, forming a full range of treatment effects. Compared with spherical or other shaped media, cylindrical particles are more likely to enter complex geometric structures, such as slits, holes and other areas, ensuring that burrs are completely removed.In addition, the uniform distribution and continuous rolling motion of PA6 particles help achieve a more uniform surface treatment effect. During the recycling process of the particles in the sandblasting equipment, they will continue to roll and rearrange, ensuring that each impact can achieve the best effect. This dynamic balance not only improves the efficiency of burr removal, but also reduces the risk of substrate damage caused by local overtreatment.5. Environmental protection and sustainabilityIt is worth mentioning that PA6 sandblasting particles also have good recyclability and environmental protection. After the sandblasting operation is completed, the particles can be recycled and reused through a simple screening and cleaning process, reducing the generation of waste. This is an important advantage for companies pursuing green manufacturing. In addition, PA6 particles themselves are polymer materials, and the carbon footprint of their production process is relatively low, which is in line with the current trend of sustainable development.In summary, the reason why polyamide nylon media-PA6 can remove burrs while retaining the original structure of the material is due to its unique flexibility, impact absorption capacity, low wear resistance, and multi-angle coverage. These characteristics work together to make PA6 particles an efficient and gentle surface treatment tool, which is widely used in the processing of plastics, rubber and composite materials.
