Method for Removing Rust from Straight Seam Steel Pipe

In the anti-corrosion construction process of oil and gas pipelines, the external treatment of straight seam steel pipe is one of the key factors determining the service life of pipeline anti-corrosion. It is the condition for the solid combination of anti-corrosion layer and straight seam steel pipe. After discussion and discussion by professional organizations, the life of the anti-
corrosion layer depends on the coating type, coating quality and construction environment. The appearance of the straight seam steel pipe affects the life of the anti-corrosion layer by about 50%. Therefore, it should be strictly followed. The standard of anti-corrosion layer meets the requirements of the appearance of straight-slit steel pipe, and continuously improves the external
surface treatment method of straight-slit steel pipe.

There are mainly the following methods for straight seam steel pipe removal:
1. Cleaning. Solvents and emulsions are used to clean the steel surface to remove oil, grease, dust, lubricants and similar organic matter, but it can not remove the rust, scale, flux, etc. of the steel surface, so it is only used as an auxiliary method in the defense operation.

2. Pickling. Generally, chemical cleaning and electrolysis are used for pickling treatment. Pipeline anti-corrosion is only used for chemical pickling, which can remove scale, rust and old coating, and can sometimes be used as re-treatment after sandblasting and rust removal. Although the chemical cleaning can make the appearance reach a certain cleanliness and roughness, its anchor pattern is shallow and it is easy to pollute the surrounding environment.

3. Tool rust removal. Firstly, the steel surface is polished with a wire brush and the like to remove loose scale, rust, welding slag, and the like. The rust removal of the hand tool can reach the Sa2 level, and the rust removal of the power tool can reach the Sa3 level. If the steel surface is attached with a strong iron oxide scale, the rust removal effect of the tool is not obvious, and the anchor depth required for anti-corrosion construction cannot be achieved.

4. Eruption and rust removal. Eruption and derusting is a high-speed motor that drives the eruption blade to rotate at a high speed, so that the steel ball, steel grit, wire segment, minerals and other abrasives can be sprayed on the surface of the straight-slit steel pipe under the strong centrifugal force of the motor, which can not only completely remove the oxide. , rust and dirt, and straight seam steel pipe under the effect of strong impact and friction of the abrasive, the desired uniform roughness can be achieved.

After eruption and derusting, not only can the physical adsorption effect of the outer surface of the tube be expanded, but also the mechanical adhesion of the anti-corrosion layer to the surface of the tube can be enhanced. Therefore, eruption and derusting is an aspirational descaling method for pipeline anticorrosion. In general, shot blasting is mainly used for the internal and external treatment of pipes. Shot blasting is mainly used for the treatment of straight seam steel pipes. In the production process, the rust-removing skill index should be strictly required to avoid the damage caused by the operation error to the straight seam steel pipe. The straight seam steel pipe will be more smooth than the embroidery before the embroidery, and the straight seam steel pipe will be removed. Embroidery is a commonly used skill in the steel pipe industry.

New service from OilVoice
Trip Shepherd is for companies who need to track their staff in areas of risk.
It's free to use, so we invite you to try it.

Visit source site

straight seam steel piperemoving rustlsaw steel pipewelded pipe

More items from lvy

Production Method and Application Field of High-pressure Seamless Steel Pipe

What is high-pressure seamless steel pipe ? It is a type of boiler tube and belongs to the seamless steel tube category. The manufacturing method is the same as that of seamless steel tubes, but there are certain strict requirements for the steel types used for manufacturing steel tubes. Since high ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 9 days agoPress > boiler tubeHigh-pressure Seamless Steel Pipeapplication field +1

Application of Stainless Steel Welded Pipe in Various Industries

Stainless steel welded pipe, abbreviated as welded pipe, is a steel pipe that is usually welded after the steel or steel belt is rolled by the unit and the mold. Welded steel pipe production process is simple, high production efficiency, many varieties and specifications, less equipment investment ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 14 days agoPress > stainless steel pipewelded pipeVarious Industries +1

ERW Steel Pipe and SAW, SML Steel Pipe Performance Comparison

1. Comparison of ERW and SAW steel pipes Because the length of SAW ( Spiral Steel Pipe ) weld is about 4~5 times of the length of ERW weld, and the inner weld nodules are not removed by technological means, the friction of the inner wall of the pipeline is inevitably increased when the medium is con ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 18 days agoPress > erw steel pipeSAW PipeSML steel pipe +2

Urban Gas Pipeline Network Using ERW Steel Pipe and its Anti-corrosion Problems

Comparison of pipe materials used in urban gas pipeline network: At present, the urban gas pipeline network mainly uses ERW steel pipes , cast iron pipes and polyethylene (PE) pipes. From the perspective of safety and economy, that is, to ensure the quality of the project , the safety of gas s ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 19 days agoPress > Gas Pipelineerw steel pipeAnti-corrosion Problems +2

Non-destructive Testing of ERW Welded Pipe

In order to protect the quality of the ERW welded pipe we produce, we will conduct quality inspection on each welded pipe produced. So what are the inspection methods for welded pipe? Today we will follow the editor of the Permanent Steel Manufacturing Co., Ltd  welded pipe manufacturer to understa ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd

Posted 25 days agoPress > ERW Welded PipeNon-destructive TestingERW pipe +1
All posts from lvy