CNC flame cutting machine has a large cutting deformation, can not meet the needs of high-precision cutting, and the cutting speed is low, need to be preheated before cutting, take time, it is difficult to adapt to the needs of unmanned operation. Plasma cutting has a wide range of cutting, can cut all metal plates and many non-metallic materials, the maximum cutting speed of up to 10m/min, is 10 times the flame cutting. Cutting underwater can eliminate the noise, dust, harmful gas and arc generated during cutting, which is conducive to the protection of the environment and meet the environmental protection requirements of the 21st century. With the maturity of high-power plasma cutting technology, the cutting thickness has reached 130mm. High-power plasma cutting with water jet technology has made the cutting quality close to the lower limit of laser cutting (±0.2mm). Because the laser cutting machine is expensive, and currently only suitable for thin plate cutting (usually thick plate punching time is long), and fine plasma cutting machine cutting precision can reach the lower limit of laser cutting, the cutting surface quality is similar, but the cutting cost is much lower than the laser The cutting is about 1/3 of the way, and the maximum cutting thickness can reach 12mm. Therefore, replacing the expensive laser cutting machine with a fine plasma cutting machine is beneficial to the high-speed fine cutting of medium and thin plates with a large amount in the most economical way. . In addition, CNC plasma cutting and automatic nesting programming software can improve the material utilization rate of 5% to 10%, and annual cutting of 20 million tons, then the steel can save 100 to 200 million tons, worth billions of dollars. Therefore, the development trend of replacing the flame cutting machine and the laser cutting machine with a numerical control plasma cutting machine has appeared in industrialized countries. Therefore, research and promotion of numerical control plasma cutting technology is of great significance.
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Precipitated Calcium Carbonate
Uses: Can be used as filler in rubber, plastics, paper, paint and ink industries. Widely used in organic synthesis, metallurgy, glass and asbestos production. It can also be used as a medium seeding agent for industrial waste water, a antacid for stomach and duodenal ulcers, a detoxifying agent for acidosis, a SOâ‚‚ eliminating agent in SOâ‚‚-containing exhaust gas, a dairy cattle feed additive and an anti-sticking agent for oil felt . It can also be used as a raw material for tooth powder, toothpaste and other cosmetics.
Usually used as a filler, widely used in daily chemical industries such as artificial floor tiles, rubber, plastics, papermaking, coatings, paints, inks, cables, construction supplies, food, medicine, textiles, feed, toothpaste, etc., as a filler to increase products The volume is reduced, and the production cost is reduced.
Light Calcium Carbonate is made of limestone, and can be used in daily chemical products such as tooth powder, toothpaste, cosmetics, etc. It can also be used in organic synthesis, metallurgy, glass and asbestos production.
The particle size of light calcium is smaller than that of Heavy Calcium Carbonate, the oil absorption is larger than that of heavy calcium carbonate, and the price is higher than that of heavy calcium carbonate. They are all commonly used fillers in latex paint, and they are best used together. Light calcium is better in terms of sedimentation, but its oil absorption is greater than that of heavy calcium, and the price is generally more expensive than heavy calcium. Although it is not as stable as heavy calcium, it is stable. Even for exterior wall paint, its application amount is also very large. of.
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