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Straight seam steel pipe is a kind of welded steel pipe. After forming a hot-rolled steel coil by aforming machine, the steel coil is transformed into a cylindrical shape. The high-frequency current…

Straight seam steel pipe is a kind of welded steel pipe. After forming a hot-rolled steel coil by a爁orming machine, the steel coil is transformed into a cylindrical shape. The high-frequency current爏kin effect and proximity effect or arc combustion under the flux layer are used for welding, so爐hat the edge of the tube blank is heated and melted under a certain extrusion pressure and finally燾ooled and formed. Straight seam steel pipes can be divided into high-frequency straight seam steel爌ipes () and submerged arc welded straight seam steel pipes () according to the爌roduction process. Petroleum, metallurgy, construction, coal, ports, machinery, etc. The industry is widely used in oil and gas transportation, low-pressure water gas transportation,爉ining fluid transportation, belt conveyors, automobile drive shafts and other industries.

Longitudinal welded pipe equipment plays an important role in people’s life and work. But the爉aintenance of straight seam steel pipes has always been a headache. Let us understand the爌recautions in the maintenance process.
1). Choose a suitable location and warehouse
1. The place and warehouse where steel pipes are stored should be clean, free of water, and far away爁rom factories and mines that laoji.orgproduce harmful gases and dust. Weeds and debris should be removed on爏ite to keep steel pipes clean.
2. Do not pile corrosive substances such as acid, alkali, salt, cement, etc. on the steel pipe in爐he warehouse. Different types of steel pipes should be stacked separately to prevent confusion and燾ontact corrosion.
3. Large section steel, rails, faded steel plates, large diameter steel pipes, forgings, etc. can be爏tacked in the open air.
4. Small and medium-sized steel pipes, metal wires, steel wires, medium-diameter steel pipes, steel爓ires and wire ropes can be stored in a well-ventilated material shed, but underlays must be爄nstalled.
5. Some small steel pipes, steel strips, silicon steel plates, steel plates, small or thin-walled爏teel pipes, various types of cold-rolled and cold-drawn steel pipes, and high-priced and easily燾orrosive metal products can be stocked.
6. Choose a warehouse based on geographic location.
7. The warehouse should be ventilated on sunny days, and closed on cloudy and rainy days, and爉aintain a proper storage environment.

2). Reasonable stacking, first in first out
1. The principle of stacking is that under stable and safe stacking conditions, it should be stacked燼ccording to varieties and specifications, and different types of materials should be stacked爏eparately to avoid confusion and mutual corrosion.
2. It is strictly forbidden to store articles corrosive to steel pipes near the stacking position.
3. The bottom of the pile should be high, strong and flat to prevent the material from being damp or燿eformed.
4. Similar materials are stacked in the order of storage, and the principle of first in, first out爄s realized.
5. For section steel stacked in the open, there must be wooden mats or stone bars underneath, the爏tacking surface should be slightly inclined to facilitate drainage, and attention should be paid to爐he flatness of the material to prevent bending and deformation.
6. The stack height for manual operation should not exceed 1.2m, the stack height for mechanical爋peration should not exceed 1.5m, and the stack width should not exceed 2.5m.
7. There should be a certain passage between the stacks, the width is usually 0.5 meters, and the燼pproach road depends on the size of the materials and transportation machinery, usually 1.5-2爉eters.
8. The bottom is raised, the warehouse is a cement floor, and the height is 0.1m; if it is muddy, it must be filled with 0.2-0.5m. If it is a wilderness, the cement floor is raised by 0.3-0.5m, and the sand and mud surface is raised by 0.5-0.7m.
9. The angle steel and channel steel in the open air environment should be bent downward, that is,爐he steel pipe should be downward and erect. The channel surface of the steel pipe should not face爑pward to prevent the accumulated water from rusting.

3). The packaging and protective layer of protective materials.

The preservatives or other爀lectroplating and packaging used by the steel plant before leaving the factory are important爉easures to prevent materials from rusting. During transportation and loading and unloading, care爏hould be taken to protect them to extend the storage period of the materials.

4). Keep the warehouse clean and strengthen material maintenance.
Mainly as follows:
1. Before entering the warehouse, care should be taken to prevent rainwater from getting wet or爉ixed with impurities, and use different methods to clean contaminated materials according to its爌erformance. For example, available high-hardness steel wire brushes, cloth, cotton, etc.
2. The materials should be checked frequently after storage. If there is rust, please remove the爎ust layer.
3. After the surface of ordinary steel pipes are cleaned, no oil is required, but the inner and爋uter surfaces of high-quality steel pipes, alloy steel, thin-walled pipes, alloy steel pipes, etc.爉ust be coated with anti-rust oil.

Through the above introduction, I believe everyone has a certain understanding and understanding of the precautions in the maintenance process of ERW straight seam steel pipe.

I am a professional digital marketer and a content writer related to the steel pipe industry.