Maintenance and cleaning of seamless black steel pipes

The cleaning of seamless black steel pipes is particularly important. The following are the precautions:

1. When cleaning seamless black steel pipes, it needs to be carried out in a flowing clean water tank. This can avoid secondary pollution. When cleaning, seamless steel pipe needs to be completely immersed in water. At this time, the sling should be relaxed, up and down. Can be four times.

2. When cleaning, the water in the steel pipe must be cleaned to avoid water corrosion and oxidation of the steel pipe. Therefore, it is necessary to deal with the solvent as soon as possible.

3. It should be noted that the pickling tank cannot be crossed, so as to avoid accidents, slip or fall into the acid tank, and be corroded by residual hydrochloric acid.

4. It is required that the iron salt content standard must be controlled within a certain range, and it cannot exceed the standard, otherwise the seamless steel pipe may be damaged.

Precautions for the preservation of seamless black steel pipes:

1. The site or warehouse where steel is stored, whether it is seamless steel pipe or other straight seam steel pipe, should be selected at the midpoint of cleanliness and poor drainage, away from the occurrence of harmless gas or dust. Weeds and various sundries should be removed from the site, and the steel should be clean;

2. Do not stack acid, alkali, salt, cement and other materials that are corrosive to steel in the warehouse. Different types of steel should be identified and stacked to avoid mixing and contact corrosion;

3. Large-scale steel, rails, insulating steel plates, large-diameter steel pipes, forgings, etc. can be stacked in the open air;

4. Small and medium-sized steel, wire rod, steel, medium-diameter steel pipe, wire rope, wire rope, etc., can be stored in a well-ventilated shed, but must be placed on the bottom;

5. Some small steel, thin steel, steel, silicon steel, small-diameter or thin-walled steel pipe, various cold-rolled, cold-drawn steel, high-priced, corrosive metal products can be stored;

6. The warehouse should be selected according to astronomical conditions. Generally, an ordinary closed warehouse is used, that is, a wall with walls, doors and windows close to each other, and a ventilation installation warehouse;

7. The warehouse requires ventilation on sunny days, airtight and moisture-proof on cloudy and rainy days, and always adhere to a suitable storage environment.

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