Has the edge of the cartoon aluminum ruler been specially treated? Will it scratch the hand?

Cartoon aluminum rulers frequently come into contact with the user's hand in daily use. If there are sharp or rough parts on the edge, it is easy to scratch the skin of the hand, causing unnecessary harm and trouble to the user. Therefore, from the design concept, it is clear that the edge should be processed smooth and rounded to provide users with a safe and comfortable use experience.

In the production process, in order to achieve the goals set by the design team, advanced and fine grinding and polishing processes are adopted. First, in the grinding process, professional workers use special grinding tools to repeatedly and carefully grind the edge of the aluminum ruler. This process requires extremely high patience and superb skills. Workers must accurately control the grinding force and angle according to the material characteristics and design requirements of the aluminum ruler to ensure that every part of the edge can be evenly polished. Through continuous grinding, the burrs, edges and corners that may have existed are gradually eliminated, and the edge begins to become smooth.

Polishing is to further improve the smoothness and glossiness of the edge. At this stage, special polishing materials and equipment are used to rub and polish the edge of the aluminum ruler at high speed. During the polishing process, the polishing material is in full contact with the edge of the aluminum ruler, generating heat through friction, so that the microscopic unevenness of the edge surface is further smoothed, and a smooth protective film is formed at the same time. After repeated polishing, the edge of the aluminum ruler finally presents a smooth and rounded state, like a carefully carved work of art.

Such edge treatment brings significant benefits. In daily use, whether students use it to draw figures and measure line segments in class, or office workers use it when processing documents and design drawings, there is no need to worry about scratching their hands. When holding the aluminum ruler, the smooth edge gently contacts the skin, and the actions of picking up and placing become easy and smooth. Moreover, the smooth edge also enhances the overall texture of the aluminum ruler, and contrasts with the cute cartoon pattern on the ruler, making this aluminum ruler not only a practical tool, but also more like an exquisite trinket, bringing users a double visual and tactile experience.