Quality inspection and evaluation method of electric power fittings forgings

Power metal forging is an important part of power engineering, its quality is directly related to the stability and security of power transmission. Therefore, it is very important to test and evaluate the quality of power fittings forgings. This paper will discuss the quality inspection and evaluation methods of electric power fittings forgings.
First, quality testing
Appearance detection
The appearance inspection is a method to detect the surface quality of electric power fittings forgings. By observing whether there are cracks, bumps, rust and other defects on the surface, we can preliminarily judge its quality status.
Size detection
Dimensional detection is a method to detect the dimensional accuracy of electric power tool forgings. By measuring the size of its key parts, it can be judged whether it meets the design requirements.

Mechanical property test
Mechanical properties testing is a method to test the mechanical properties of electric power metal forgings. Through tensile, bending, impact and other tests, the tensile strength, yield strength, elongation and other key indicators can be determined, so as to determine whether it meets the requirements of use.
Corrosion resistance test
Corrosion resistance testing is a method to test the corrosion resistance of power fittings forgings. By soaking in the corrosive medium for a certain time to observe its surface changes, you can judge its corrosion resistance.

2. Evaluation methods
   Scoring method
   Scoring method is a commonly used method to evaluate the quality of power metal forgings. By scoring each detection index, and then summing to get the total score, according to the total score to judge its quality level. This method is simple and easy, but subjective.
   Expert review method
   Expert review method is a method to evaluate the power fittings forgings by experts in the industry. According to their own experience and professional knowledge, the experts conduct a comprehensive evaluation of the indicators of power metal forgings, and then give the quality grade. This method is highly professional, but also highly subjective.
   Statistical law
   Statistical method is a quality assessment method based on large amounts of data. Based on the statistics and analysis of the quality data of a large number of electric power tool forgings, the quality distribution law and trend can be obtained, so as to judge the overall quality status. This method is objective, but it needs a lot of data support.
   Iii. Summary
   The quality inspection and evaluation of power fixture forgings is the key link to ensure its normal operation and service life. The quality of power fittings forgings can be evaluated comprehensively by means of appearance inspection, size inspection, mechanical property inspection and corrosion resistance inspection. At the same time, the evaluation methods such as scoring method, expert review method and statistical method can be used to judge the quality grade of electric power fittings more objectively and accurately. In power engineering, we should strengthen the quality inspection and evaluation of power fittings forgings to ensure that they meet the requirements of use and improve the stability and security of power transmission.