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Standard for inspection of stainless steel oval head
Release time:
2024-06-26
Stainless steel oval head is widely used in petroleum, chemical, electric power, metallurgy and other industries in the pipeline system, used to close the pipe end or constitute the container. In order to ensure its quality and safety, it is very important to formulate strict inspection standards.
Jiuzhou Head
Stainless steel oval head is widely used in petroleum, chemical, electric power, metallurgy and other industries in the pipeline system, used to close the pipe end or constitute the container. In order to ensure its quality and safety, it is very important to formulate strict inspection standards.
Inspection standard:
1. Appearance inspection
(1) the head surface should be smooth, no obvious scratches, spots, cracks and other defects.
(2) The head is well formed, the oval outline is clear, and there is no deformation.
(3) The welding parts shall be smooth and free from welding defects, such as pores and slag inclusions.
2. Dimensional inspection
(1) The length, width, height and other dimensions of the head shall meet the design requirements, and the error shall be within the allowable range.
(2) The ellipticity shall conform to the standard, and the proportion of the major axis and the minor axis shall be appropriate.
3. Material inspection
(1) The head material shall be stainless steel, with complete material certification and compliance with relevant standards.
(2) the surface of the material should be free of rust, oil and other impurities, affecting the performance.
4. Performance testing
(1) Pressure test: The head shall be pressure tested to ensure that there is no leakage or deformation under the specified pressure.
(2) Tensile test: Tensile test is carried out on the head material to test its strength and toughness.
(3) Corrosion resistance test: The head is tested for corrosion resistance in a specific environment to ensure its stable performance.
5. Other Inspections
(1) Magnetic particle testing: magnetic particle testing is carried out on the head to find surface defects.
(2) Ultrasonic testing: ultrasonic testing of the head to find internal defects.
Inspection process:
1. After receiving the head, conduct visual inspection.
2. Check the size of the head to ensure that it meets the design requirements.
3. Check the head material and carry out performance test after confirmation.
4. Magnetic particle testing and ultrasonic testing.
5. According to the inspection results, determine whether the head is qualified.
Note:
1. During the inspection, relevant safety regulations shall be strictly observed to ensure personnel safety.
2. Inspection tools and equipment should be calibrated regularly to ensure the accuracy of inspection results.
3. The head can be put into use only after passing the inspection.
The purpose of this inspection standard is to conduct a comprehensive inspection of stainless steel oval heads to ensure their quality and safety. In actual operation, the inspection standards should be strictly followed to ensure that each head can meet the requirements and provide guarantee for the safe operation of the pipeline system.
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