1. Treatment method of degreasing and degreasing stainless steel welded tubes
Deoiling and degreasing stainless steel welded tubes is a treatment method that uses chemical or physical methods to remove impurities such as engine oil, fat, paint, iron oxide scale, etc. deposited on the surface of the pipe to make the surface clean and smooth.
(1)Chemical deoiling and degreasing method
Chemical deoiling and degreasing methods currently include alkaline, acidic, organic solvent, ionic methods, etc. Among them, the alkaline method is a more common method, which is suitable for oil and fat deposited on the surface of stainless steel welded tubes. It is simple to operate and has remarkable effects.
(2)Physical deoiling and degreasing method
Common physical deoiling and degreasing methods include aerosol deoiling, water washing, shot blasting, etc. Among them, water washing method is a simple and easy physical treatment method, which is widely used in surface cleaning of stainless steel welded tubes.
2. Process of degreasing and degreasing stainless steel welded tubes
The process of deoiling and degreasing stainless steel welded tubes usually includes the following steps:
(1)Cleaning: Use cleaning agent to clean the surface of the stainless steel welded pipe to remove dust and impurities on the surface.
(2)Deoiling and degreasing: Use chemical deoiling and degreasing methods or physical deoiling and degreasing methods to remove oil, fat and other impurities on the surface of stainless steel welded tubes.
(3)Neutralization: The residual acid and alkali in the surface chemical cleaning agent is neutralized through the neutralization process to prevent corrosion on the surface of the stainless steel welded pipe.
(4)Rinse with clean water: Rinse the surface of the stainless steel welded pipe to remove residues from the deoiling and degreasing process.
(5)Drying: Use ventilation or heating to evaporate and dry the water on the surface of the pipe to ensure that the surface is smooth and clean.
3. Application scope and advantages of stainless steel welded pipe deoiling and degreasing
The deoiling and degreasing treatment of stainless steel welded tubes can remove surface impurities, reduce surface ability, and enhance surface corrosion resistance. This is often used in the production of aircraft, food equipment, medical equipment, instrumentation, chemical equipment, ships, automobile manufacturing and other fields.
The advantage of this treatment method is that it can effectively remove dirt and impurities on the surface of stainless steel welded tubes, ensure the cleanliness of the pipe surface, and enhance its corrosion resistance and aesthetics. At the same time, the deoiling and degreasing treatment of stainless steel welded tubes does not require the use of harmful chemicals, has no pollution to the environment, and meets environmental protection requirements.
4. Frequently asked questions about degreasing and degreasing stainless steel welded tubes
(1)Incomplete degreasing
Due to incomplete degreasing, oil stains and impurities are present on the surface of the pipe, which will bring safety risks to the use of the pipe. Therefore, it is necessary to ensure that the stainless steel welded pipe is completely degreased before inspection.
(2) Degreasing agent residue
If the degreasing agent remains on the surface of the pipe, it may not only affect the use of the pipe, but also cause contamination of the medium in the pipe. Therefore, before testing, the stainless steel welded pipe needs to be fully cleaned and dried to avoid the residue of degreasing agent.
(4) Incorrect detection
Different pipe materials require different degreasing inspections. If they are incorrect, it may cause errors in the test results or even fail to detect effectively. Therefore, before performing degreasing inspection, it is necessary to understand the material and characteristics of the pipe and choose appropriate testing.
5. Precautions for degreasing and degreasing stainless steel welded tubes
(1)The testing environment should be dry, clean, and odor-free to avoid affecting the testing results.
(2)When conducting fluorescence flaw detection, it is necessary to pay attention to whether the flaw detection material meets the standards, and professional fluorescence detection equipment needs to be equipped.
(3)When conducting ultrasonic flaw detection, special attention needs to be paid to the selection and operation of the probe to achieve better detection results.
Deoiling and degreasing stainless steel welded tubes is a treatment method that uses chemical or physical methods to remove impurities such as engine oil, fat, paint, iron oxide scale, etc. deposited on the surface of the pipe to make the surface clean and smooth.
(1)Chemical deoiling and degreasing method
Chemical deoiling and degreasing methods currently include alkaline, acidic, organic solvent, ionic methods, etc. Among them, the alkaline method is a more common method, which is suitable for oil and fat deposited on the surface of stainless steel welded tubes. It is simple to operate and has remarkable effects.
(2)Physical deoiling and degreasing method
Common physical deoiling and degreasing methods include aerosol deoiling, water washing, shot blasting, etc. Among them, water washing method is a simple and easy physical treatment method, which is widely used in surface cleaning of stainless steel welded tubes.
2. Process of degreasing and degreasing stainless steel welded tubes
The process of deoiling and degreasing stainless steel welded tubes usually includes the following steps:
(1)Cleaning: Use cleaning agent to clean the surface of the stainless steel welded pipe to remove dust and impurities on the surface.
(2)Deoiling and degreasing: Use chemical deoiling and degreasing methods or physical deoiling and degreasing methods to remove oil, fat and other impurities on the surface of stainless steel welded tubes.
(3)Neutralization: The residual acid and alkali in the surface chemical cleaning agent is neutralized through the neutralization process to prevent corrosion on the surface of the stainless steel welded pipe.
(4)Rinse with clean water: Rinse the surface of the stainless steel welded pipe to remove residues from the deoiling and degreasing process.
(5)Drying: Use ventilation or heating to evaporate and dry the water on the surface of the pipe to ensure that the surface is smooth and clean.
3. Application scope and advantages of stainless steel welded pipe deoiling and degreasing
The deoiling and degreasing treatment of stainless steel welded tubes can remove surface impurities, reduce surface ability, and enhance surface corrosion resistance. This is often used in the production of aircraft, food equipment, medical equipment, instrumentation, chemical equipment, ships, automobile manufacturing and other fields.
The advantage of this treatment method is that it can effectively remove dirt and impurities on the surface of stainless steel welded tubes, ensure the cleanliness of the pipe surface, and enhance its corrosion resistance and aesthetics. At the same time, the deoiling and degreasing treatment of stainless steel welded tubes does not require the use of harmful chemicals, has no pollution to the environment, and meets environmental protection requirements.
4. Frequently asked questions about degreasing and degreasing stainless steel welded tubes
(1)Incomplete degreasing
Due to incomplete degreasing, oil stains and impurities are present on the surface of the pipe, which will bring safety risks to the use of the pipe. Therefore, it is necessary to ensure that the stainless steel welded pipe is completely degreased before inspection.
(2) Degreasing agent residue
If the degreasing agent remains on the surface of the pipe, it may not only affect the use of the pipe, but also cause contamination of the medium in the pipe. Therefore, before testing, the stainless steel welded pipe needs to be fully cleaned and dried to avoid the residue of degreasing agent.
(4) Incorrect detection
Different pipe materials require different degreasing inspections. If they are incorrect, it may cause errors in the test results or even fail to detect effectively. Therefore, before performing degreasing inspection, it is necessary to understand the material and characteristics of the pipe and choose appropriate testing.
5. Precautions for degreasing and degreasing stainless steel welded tubes
(1)The testing environment should be dry, clean, and odor-free to avoid affecting the testing results.
(2)When conducting fluorescence flaw detection, it is necessary to pay attention to whether the flaw detection material meets the standards, and professional fluorescence detection equipment needs to be equipped.
(3)When conducting ultrasonic flaw detection, special attention needs to be paid to the selection and operation of the probe to achieve better detection results.
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