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Shot blastShot blasting is the name of a mechanical surface treatment process. Similar processes include sandblasting and shot blasting. The principle of shot blasting is to use a motor to drive the impeller body to rotate (directly drive or use a V-belt drive), and rely on centrifugal force to blast shots with a diameter of about 0.2 to 3.0 (including cast steel shots, steel wire cut shots, stainless steel shots, etc.) Type) Throw to the surface of the workpiece to make the surface of the workp
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As a popular process for aluminum alloy die castings, sandblasting is widely used in various aluminum alloy shell die castings
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Shot peening uses a high-pressure fan or compressed air as power to eject the 0.2-2.5mm diameter projectiles and impact the metal surface. Widely used in the extinction and descaling of metal surfaces; improve the mechanical strength, fatigue resistance, wear resistance and corrosion resistance of parts; eliminate the residual stress of casting, forging and welding parts.
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According to market demand, in the future, we will closely integrate industrial robot technology, vigorously improve the automation and intelligence of sandblasting machines, and focus on liberating labor, improving productivity, and reducing the production cost of enterprises for the purpose of accelerating the surface treatment industry in China’s Industry 4.0 Comprehensive layout of the times.
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Shot peening, as a surface strengthening process, has a long history dating back to 2700 BC. According to records, blacksmiths at the time had realized that metal that was hammered in a cold state could become harder.
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Sandblasting and rust removal of offshore platforms, cleaning up old paint corrosion and rust spots on guardrail fences, pipes, steel structures, etc.!
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The traditional Dacromet solution contains 6-8% CrO3, and it is easy to leave +6 valent chromium after processing, which can cause pollution and even carcinogenic to the human body, and cannot meet the requirements of the automobile and other industries for the content of toxic substances. The United States, Germany, Japan, China and other countries have successively developed and improved Dacromet technology, forming a new type of Dacromet chromium-free coating technology.
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This standard specifies the surface treatment of ship outfitting parts, paint matching, painting requirements before boarding and installation, and painting requirements and inspection requirements for outfitting parts after installation. The painting construction refers to the painting construction process of the main hull.
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Shot peening is a controlled shot peening technique, which is different from shot peening. Shot blasting aims to remove oil stains, oxide scale, rust and machining burrs on the surface of the workpiece.
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Shot peening, as an important strengthening process for auto parts, is widely used in automobile production. In the past, the arc high film was used to control the shot peening effect, and the result did not match the actual product life.
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