The edge grinding process of carbon steel dish drain basket is the key link to avoid scratching hands and tableware. Its core lies in eliminating the sharp characteristics of the material itself through fine processing. After the carbon steel material is cut and formed, the edge often has burrs or sharp angles. These small flaws seem insignificant, but they may cause accidental scratches during use. The grinding process is to deal with these hidden dangers, making the edge from hard and sharp to round and soft.
The grinding process will first passivate the edge as a whole. The edge is repeatedly ground with a specific tool to grind the original right angle or sharp angle into a smooth arc. This arc design can disperse the pressure when the hand touches it. Even if the edge is accidentally touched, it will not easily scratch the skin like a sharp edge. For tableware, the rounded edge will form a surface-to-surface contact when in contact, rather than a point or line collision, thereby reducing scratches on the surface of the tableware.
In terms of dealing with burrs, the grinding process has a detailed operation process. The tiny metal burrs that may be produced during the processing of carbon steel are easy to attach to the edges, which may scratch the hands and also scratch the glaze when the tableware is put in or taken out. The grinding process will completely remove these burrs through fine abrasive materials, while making the edge surface form a uniform finish to avoid potential damage caused by burrs.
The edges of different parts will be polished in a targeted manner. For example, the edge of the frame of the dish drain basket and the connection with the grid are places where dead angles are prone to occur. When polishing, special attention will be paid to these connection points to ensure that every corner is fully processed. This all-round polishing coverage avoids the risk of scratches due to inadequate local treatment, and keeps the edge of the entire dish drain basket in a safe state.
The polished edge will also form a fine smooth surface, which is not only gentle to the touch, but also reduces the friction between the tableware. When the tableware is put in or taken out, the smooth edge will reduce the friction coefficient with the surface of the tableware, and even if a slight collision occurs, it is not easy to leave scratches on the tableware. For tableware made of fragile materials such as ceramics and glass, this low-friction contact is particularly important and can effectively protect the integrity of its surface.
The grinding process also takes into account the thickness of the edge. Even after grinding, an edge that is too thin may still produce hidden sharp surfaces due to uneven force, while the appropriate thickness combined with rounded processing can make the edge more resilient and form a buffer when it comes into contact with hands or tableware. This balance of thickness and roundness not only ensures the firmness of the edge, but also enhances safety during use.
In addition, the edges after the grinding process will undergo strict tactile testing to ensure that they meet the expected safety standards. This test does not rely on instruments, but actually feels the smoothness and roundness of the edge through actual touch, simulating the contact scenes in daily use, and ensuring that there is no pricking or scratching feeling at any angle. This process standard guided by actual use experience makes the polished edge truly safe and secure, whether it is hand contact or tableware placement, people can use it with peace of mind.
