How to inspect and evaluate the quality of petrochemical forgings?

The steps for quality inspection and evaluation of petrochemical forgings are as follows:

Dimensional inspection: including the measurement and comparison of external dimensions, internal dimensions, etc. The appearance size can be measured by using measuring tools such as length, width and height of the forging; The internal dimensions can be tested by non-destructive testing methods such as ultrasonic thickness gauges.

Material inspection: including composition and performance inspection of the materials used in forging. The composition test can be carried out by chemical analysis methods, such as spectral analysis, chemical titration, etc. The performance test can be carried out by mechanical testing, metallographic analysis, etc.

Non-destructive testing: The use of ultrasonic testing, magnetic particle testing, X-ray testing, thermal infrared testing, eddy current testing and other non-destructive testing technology for forging defects detection. These technologies can detect the defects, cracks, pores and so on inside the forgings without damaging the forgings, improving the accuracy and reliability of the detection.

Mechanical properties test: Through tensile test, impact test, hardness test and other ways to test the mechanical properties of forgings. These tests can understand the deformation, fracture and other characteristics of forgings under stress, and determine whether they meet the design requirements and use requirements.

Comprehensive evaluation: According to the above inspection and test results, the forging is comprehensively evaluated. The content of evaluation includes the quality grade, performance, reliability and so on, which provides the basis for the production and use of forgings.

Nonconforming product treatment: For nonconforming forgings, corresponding treatment is required. Slight disqualification can be repaired by rework, trimming, etc. Serious nonconformity needs to be scrapped, and the cause analysis and improvement measures are formulated to avoid similar problems.

In short, the quality inspection and evaluation of petrochemical forgings is a necessary link to ensure the quality and safety of forgings. Through the use of scientific methods and means, comprehensive detection and evaluation of forging performance indicators, can effectively improve the quality and reliability of forging, ensure the safe and stable operation of equipment, improve production efficiency.