"Shot and grit" shape of abrasives
The difference between shot and grit lies not in the material or processing method, but in the shape. There are various shapes of abrasives (grinding materials) used in blast processing, and the processing effect and finish can vary greatly depending on the shape. "About the shapes of blast abrasives" The shapes of abrasives can be broadly divided into three types: 1. Spherical / Round Cut This shape is cylindrical or polygonal with edges ground to resemble a sphere, referred to as "shot," "beads," or "round cut," with many products named with the material name before or after. Example: Steel shot, stainless beads 2. Cylindrical / Wire Cut This shape is cylindrical, created by finely cutting wire material. It is referred to as "wire cut" or "cut wire," with many products named with the material name before or after. Example: Steel cut wire, stainless cut wire 3. Polygonal / Sharp Angle This shape has many sharp angles and is characterized by a polygon with pointed corners. It is referred to as "grit," with many products named with the material name before or after. Example: Steel grit, stainless grit
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"Difference in Processing Effects Based on Shape" The shape of the abrasive material significantly affects the finish, processing effect, and degree of damage after processing. 1. Spherical/Round Cut Due to its spherical shape, it allows for processing that minimizes damage to the workpiece. It creates round indentations by processing the surface as if striking it. It is often used for processing effects such as creating fine unevenness, removing burrs, and eliminating residual stress, such as in shot peening. 2. Cylindrical/Wire Cut With a cylindrical shape and edges on the circular part and cutting surface, the degree of damage to the workpiece is intermediate between spherical and polygonal shapes. While the edges of the cutting surface are not sharp, it can roughen the surface. It is often used for burr removal since it does not provide high cutting force. 3. Polygonal/Sharp Angle Due to its irregular and sharp-angled shape, it has strong grinding power and creates random unevenness on the surface of the workpiece, resulting in a significant degree of damage. It forms an optimal anchor pattern that greatly enhances adhesion for paints and adhesives. It is often used for surface preparation before painting (substrate treatment), removal of old paint films or resins, and rust removal.
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Turning your troubles into good experiences for our customers. We respond to such customer requests. From "nothing" to "something." Creating "one-of-a-kind" rather than "mass production." Harada Iron Works is here to fulfill your wishes. To meet the diverse needs of our customers, we provide a consistent production service from material procurement to painting and installation, assisting with shortening delivery times and reducing total costs. With over 70 years of experience, we are committed to providing even greater "high added value" to our products through the skills and know-how we have honed over the years. If you have any inquiries regarding production or painting, please feel free to contact us. We look forward to hearing from you. For blasting and painting, leave it to us. Harada Iron Works Co., Ltd. Hiroshima TEL: 082-232-2445 FAX: 082-293-0286 Contact: Tao Mobile: 090-3742-9768 Email: bousei@harada-tekkou.co.jp Please feel free to contact us for consultations or estimates.
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Our company manufactures products tailored to the diverse needs of various sites. We respond to customer requests with our capabilities, advantageous location, and thorough quality and delivery management. You can trust us with everything from material ordering to can manufacturing, processing, surface preparation, and painting. Additionally, we have dedicated many years to research and development in rust prevention, establishing a solid technology and facilities as a "rust prevention department," and we also perform tasks such as paint stripping. Please feel free to contact us with any requests.