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Role in the production process of a large gravel, natural sand gradually reduced, artificial sand will gradually replace natural sand inevitable, new sand making machine in the course there will be some problems, due to the sand making machine working environment relatively poor and unused for long periods, so the new Sand surface rust will be a problem, affecting the quality of sand making machine, the new Sand blasting how this issue is very important, so based on past experience for everyone share a few tips sand blasting machines.
First, to remind everyone, sand making machine, crusher, milling machine, etc. Most of mining equipment, which are based on the basic structure of steel as the material production, prolonged outdoor work or vapor relatively full, plus idle for a period of time, body rust is a normal chemical reaction. There is rust inside the machine crushing chamber, which is due to the inner wall and the material (typically greater hardness rocks, minerals, etc.) in the crushing process of friction, its inner wall scratches, long-term shelve it is easy to rust. Rusty does not matter, but it should be timely treatment to prevent long-term rust, causing damage to the machine, sand making machine affect the normal use. There are four main methods rust following:
A chemical descaling method: mainly using acid and metal oxide chemical reaction, thereby removing a method for efficient sand making machine rust metal surface corrosion products, known as pickling rust, this addition rust can only operate in the workshop;
2, high-pressure water abrasive blasting: the impact of the use of high pressure water jet action (plus abrasive grinding action) and water to remove rust and pry the role of sand making machine
coating on a steel plate. It features no dust pollution, no damage to the steel plate, greatly improving the efficiency of rust, up to 15m2 / h or more, good quality rust. However, after the steel rust easily return rust, must specifically with wet paint rust paint, have a greater impact on the general performance of the paint coating;
3, small pneumatic or electric rust: mainly powered by electricity or compressed air, assembling the appropriate descaling devices, reciprocating or rotational movement to suit the requirements of various occasions rust;
4, smear paint oxidation: in iron products coated with mineral oil, or baked enamel paint, spray and so on. In the steel surface by plating, methods such as hot dip coated with a layer of rust metal such as zinc, tin, chromium, and nickel. These metal surfaces can form a dense oxide film, thereby preventing iron products and water, air, and rust and other materials in contact. Chemical methods can also be used to make iron products formed on the surface layer of dense and stable oxide film to prevent rusting iron products.