The maintenance method of internal steel parts of desks and chairs

Analysis of the maintenance method of the internal steel parts of the student desks and chairs, the treatment method of the steel parts of the student desks and chairs, the chair legs of the student desks and chairs are made of steel, then the steel in and back, in order to prevent rust, the surface is treated and there is oil.
Before spraying, it is necessary to carry out pickling to remove oil, and the oil removal formula used will remove the oil on the steel surface. Sometimes steel placed too long can not prevent the surface from rusting, and then the steel rust treatment. After oil removal and rust removal, the surface of the steel will become very smooth, and after the completion of this step, in order to prevent the steel of the students' desks and chairs from being taken out of the rust removal liquid by air oxidation, it needs to be immediately phosphating. After the phosphating liquid treatment of the steel surface is attached to a thin layer of phosphating film, can be a good air to prevent the oxidation of steel. A series of processing processes are completed. Then before the plastic powder spraying, ensure that the steel surface is dry and there is no dust, so that the plastic powder sprayed on will be tightly attached to the steel surface. Even if you hit it with a hammer, it won't come off easily.
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