Preservation and maintenance method of straight seam steel pipe

Preservation and maintenance method of straight seam steel pipe

Select a suitable storage location and warehouse

Cleaning and drying

The places and warehouses for storing straight steel pipes shall be clean,water-free,and away from factories and mines that produce harmful gases and dust.Weeds and debris should be removed in time to keep the steel pipe clean.This is because if the surface of the steel pipe is attached with impurities such as dust and oil,it not only affects its beauty,but also may accelerate the corrosion process.

Avoid corrosive substances

Acid,alkali,salt,cement and other corrosive substances shall not be stored in the warehouse.Different types of steel pipes should be stacked separately to prevent confusion and contact corrosion.After contact with corrosive substances,chemical reactions may occur on the surface of the steel pipe,leading to corrosion and affecting its strength and service life.

Open stacking and indoor storage

Large section steel,rail,steel plate,large caliber steel pipe,forgings,etc.,can be stacked in the open air.These materials are large in volume and heavy in weight,and are stacked in the open air for easy handling and transportation.However,when stacking in the open air,attention should be paid to the level of the ground,to avoid water,and there should be anti-rain measures,such as building simple trellses.

Small and medium section steel,wire,steel bar,medium diameter steel pipe,steel wire and wire rope,etc.,can be stored in a well-ventilated material shed,but must be fitted with a lower cushion.The mat prevents direct contact between the steel pipe and the ground,reducing corrosion and wear.

Some small steel pipes,thin steel plates,steel strips,silicon steel sheets,small caliber or thin-wall steel pipes,all kinds of cold rolled,cold drawn steel pipes and metal products with high prices and easy corrosion should be stored in the warehouse.The warehouse should be selected according to geographical conditions,generally using ordinary closed warehouse,that is,the roof has a wall,doors and Windows are tight,and there is a ventilation device.

Warehouse selection and management

The selection of warehouses should consider geographical conditions,such as high terrain,good drainage,smooth ventilation and so on.The warehouse should maintain a suitable storage environment,pay attention to ventilation in sunny days,pay attention to close moisture-proof in rainy days.The warehouse should be inspected regularly to ensure that the doors and Windows are closed to prevent the intrusion of rain and moisture.

Second,reasonable stacking and first-in-first-out

Stacking principle

The principle of stacking is to stack according to varieties and specifications under stable and safe stacking conditions,and to stack different varieties of materials separately to prevent confusion and mutual corrosion.When stacking,the end face of the steel pipe should be smooth to avoid tilt and bending.

No corrosive articles

It is strictly prohibited to store items corrosive to the steel pipe near the stacking position.These items may contact the steel pipe through air,water and other media,leading to corrosion.

Pile bottom requirement

The bottom of the pile should be high,firm and smooth to prevent moisture or deformation of the material.The section steel stacked in the open air must have wooden MATS or stone bars,and the stacking surface should be slightly inclined to facilitate drainage,and attention should be paid to the flatness of the material to prevent bending and deformation.

First in,first out

The same material should be stacked in the order of storage,and the principle of"first in,first out"should be implemented.This helps to ensure that the steel pipe is not deformed or corroded by prolonged backloading during storage.

Stacking height and width

The stacking height of manual operation shall not exceed 1.2 meters,the stacking height of mechanical operation shall not exceed 1.5 meters,and the stacking width shall not exceed 2.5 meters.This is to ensure the stability and safety of the stack and prevent collapse and damage.

Channel setup

There should be a certain channel between the stacking,the width is generally 0.5 meters,and the exit channel depends on the size of the material and the transportation machinery,which is generally 1.5-2 meters.The passageways are set up to facilitate handling and transportation,while also facilitating ventilation and inspection.

Protective materials and preservatives.

Antirust treatment

After cleaning the surface of the steel pipe,it is not necessary to apply oil,but the internal and external surfaces of high-quality steel,alloy steel pipe,thin wall pipe,etc.,should be coated with anti-rust oil.The anti-rust oil can form a protective film to isolate air and moisture and prevent the steel pipe from rusting.

Electroplating packaging

Protective materials,preservatives or other electroplated packaging used before the plant are important measures to prevent material rust.Electroplating can form a metal protective layer on the surface of the steel pipe and improve the corrosion resistance of the steel pipe.

Check before storage

Before entering the warehouse,attention should be paid to prevent rain from getting wet or mixing impurities,and according to its performance,different methods should be used to clean contaminated materials,such as available high-hardness steel wire brush,low-hardness cloth,cotton,etc.The cleaned steel pipe should be stored as soon as possible to avoid long-term exposure to the air.

Regular inspection

After the material is stored in the warehouse,it should be checked frequently.If there is rust,please clean the rust layer immediately.Regular inspection can detect and deal with the corrosion problem of the steel pipe in time to prevent the expansion of the problem.

Other precautions

Ventilation in sunny days and moisture in rainy days

The warehouse should pay attention to ventilation in sunny days to maintain air circulation and reduce moisture accumulation.The warehouse should be closed on rainy days to prevent rainwater intrusion.At the same time,the warehouse should be equipped with dehumidification equipment to maintain appropriate humidity.

Precautions for open stacking

Steel pipes stacked in the open air should have rain-proof measures,such as building simple scaffolding or using tarps to cover them.At the same time,the stacking surface should be slightly inclined to facilitate drainage and prevent water from causing corrosion.

Handling and handling

During handling and loading,the steel pipe should be carefully protected to avoid collision and scratches.Use appropriate handling tools and handling equipment to ensure the safety and integrity of steel pipes.

Storage environment

The storage environment of the steel pipe should avoid high and low temperature extreme conditions.High temperature may lead to steel pipe deformation and corrosion acceleration,low temperature may lead to steel pipe embrittlement.Therefore,an appropriate storage environment should be selected to ensure the storage quality of the steel pipe.

Record and trace

Establish a sound steel pipe warehouse,warehouse and inventory records to ensure that the flow of steel pipe can be traced.This helps to find and deal with the quality problems of the steel pipe in time to ensure the safe use of the steel pipe.

the application and importance of straight steel pipe

Straight steel pipe has a wide range of applications in petroleum,metallurgy,construction,coal mine,port,machinery and other industries.In oil and gas transportation,straight seam steel pipe,as the main material of pipeline,undertakes the important task of transporting oil and gas.In the low-pressure water gas transportation and mine fluid transportation,the straight seam steel pipe also plays an important role.In addition,straight steel pipe is also widely used in belt conveyor,automobile drive shaft and other industries.

The quality of the straight seam steel pipe is directly related to its use effect and safety.Therefore,the correct preservation and maintenance method is essential to ensure the quality and service life of the straight seam steel pipe.Through the selection of suitable storage sites and warehouses,reasonable stacking and first-in-first-out,the use of protective materials and preservatives and other measures,can effectively extend the service life of the straight seam steel pipe,improve its safety and reliability

Conclusion

The preservation and maintenance method of straight seam steel pipe is a complicated and meticulous process,which needs to consider many factors comprehensively.Through the introduction of this article,I believe that readers have a deeper understanding of the preservation and maintenance methods of straight steel pipes.It is hoped that readers can earnestly implement these measures in actual operation to ensure the quality and service life of the straight seam steel pipe.At the same time,it is also hoped that readers can continue to learn and explore new preservation and maintenance methods,and contribute to the wide application and sustainable development of straight steel pipes.