The inspection methods for pressure vessels mainly include three parts: external inspection, internal and external inspection and inspection. Let's take a closer look together 1. External inspection: also known as in operation inspection, the specific content of the inspection is whether there are cracks, deformation, leaks, partial overheating and other abnormal situations on the outer layer of the pressure vessel. Whether the accessories are complete, agile, and reliable; Check if the anchor bolts are damaged and tighten all bolts. Then take a look to see if there are any abnormal situations such as downward movement, tilting, or damage to the anti-corrosion layer. External inspections are the work of inspection personnel, as well as the daily patrol inspection of new projects by actual operators. If serious damage is found (such as cracks, deformation, severe leakage caused by stressed components), the operation must be stopped and immediately reported to the relevant staff Secondly, internal and external inspections: Internal and external inspections can only be carried out after stopping operation and cleaning the inside of the container. The specific content of the inspection should not only include all external inspections, but also inspect the erosion damage on the internal and external surfaces. Inspect all welding, stainless steel head connection areas, and stress locations with a human eye and high-power magnifying glass, check for cracks, and use ultrasonic or radiographic testing as needed to inspect the internal quality of the welding. For containers where the alloy composition of metal composite materials is likely to change, metallographic analysis should be conducted if necessary. The core anchor bolts of pressure and high-pressure vessels should be inspected for cracks using magnetic particle inspection or coloring. Based on internal and external inspections, the reasons for the defects should be analyzed, and the handling decision should be made clearly. After repair, a re inspection should be carried out. The internal and external inspection cycle of pressure vessels should be conducted every three years, but the inspection cycle time for containers with obvious corrosive and toxic substances should be reduced. If there are serious defects in the operation of containers and containers with poor welding quality and unclear material corrosion resistance, it is also necessary to reduce the inspection cycle time
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China