2022 - 09 - 27
Derusting metal surface with high pressure washer
Metal surface pretreatment is an essential link in metal material anti-corrosion engineering. The purpose is to remove the rust layer, scaling, dirt, and oxide scale on the surface of the material so that the anti-corrosion coating and the metal surface can be better bonded together to prevent the corrosion of the metal material by corrosive substances and prolong the life of the metal substrate. Currently, metal surface pretreatment methods mainly include cleaning, tool rust removal, and sandblasting rust removal. Among them, the open dry sandblasting technology is the most common application. The dry sandblasting process produces a large amount of sand, rust, and harmful dust, which seriously pollutes the environment and causes great harm to the human body. High-pressure water jet pure rust removal is more accepted and valued by people because of its advantages of environmental protection, simplicity, high quality, safety, and low cost. This article mainly introduces the application of domestic ultra-high pressure cleaners in rust removal. 1. The principle of ultra-high pressure water jet descaling and descaling The ultra-high pressure cleaning machine pressurizes the ordinary water to an ultra-high pressure of 170-250 MPa through a high-pressure oil pump and a supercharger and then sprays it...
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