Polishing disc sandpaper is also a sandpaper, the shape of which is a perfect circle, which is velveted by sandpaper, or laminated with double-sided tape, and then placed on a punching machine to cut and punch out the product with a special circular die.
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Polishing disc sandpaper has the size and size, as well as different grain size numbers, as well as the distinction between color and abrasive.
1, from the composition of the paste: adhesive disc sandpaper and back velvet disc sand (also known as self-adhesive disc sandpaper and brushed disc sandpaper); 'brushed disc sandpaper is divided into non-porous brushed and belt Hole brushed. The perforated disc sandpaper facilitates the discharge of waste from the holes while the object is being polished, improving the grinding efficiency.
2, by size: common 4 inch, 5 inch, 6 inch diameter disc sandpaper. Available disc sandpaper diameter area 23mm---235mm.
3, From the sand surface color classification: common white sand surface disc sand, red sand surface disc sand, yellow sand surface disc sand, there is blue sand surface disc sand, green sand surface disc sand.
4. Classification from raw materials: divided into silicon carbide disc sandpaper and alumina disc sandpaper.
5, From the granularity number distinction: disc sandpaper granularity number 40# 60# 80# 100# 120# 150# 180# 220# 240# 320# 360# 400# 600# 800# 1000# 1200# 1 500# 2000# 3000# 4000# 5000#etc.
6, According to the product name: wood sandpaper, that is, dry sanding paper; water sandpaper, that is, water-resistant sandpaper; iron sand cloth, is a kind of dry sanding paper, thicker, can polish the metal surface as soon as possible.
7, From the way of polishing: dry sanding paper and water sandpaper. Water sandpaper has a small gap between the sand grains, and the ground debris is also small. When the sand belt is used together with water, the powder will flow out with the water, so it is best to use it together with water. If the sandpaper is dry-ground, the broken powder will remain in the gap of the sand, and the surface of the sandpaper will be dimmed to achieve its original effect.
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The dry sandpaper is very convenient, and the gap between the sand grains is larger than that which is ground out. It will fall off due to the gap during the grinding process, so it does not need to be used together with water. Dry sand has a common name of red sand and white sand, the difference is that the former does not do anti-clogging coating treatment. Water sandpaper is ground more slowly, but it is lighter (the thinner the water sandpaper is, the slower it is, the more it is used, the more often it is used for oil polishing of high-gloss products); the dry sandpaper is ground faster but it is thicker (more The coarser and deeper sandpaper is ground faster and thicker. The conventional 400-grain number is usually used for white body wood grinding, and the 400-800 grain number is often used for oil grinding part).
Polishing disc sandpaper is widely used for polishing hardware parts, plastics, electronics, auto parts, furniture and handicrafts. From the space shuttle to our mobile phones, computers, and even daily furniture, walls, etc., we can see the disc sandpaper. The use of disc sandpaper to polish the product is very efficient, faster, more convenient and less lossy than conventional hand sandpaper.
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