Composition and production process inspection of high-pressure alloy steel seamless pipe

alloy steel seamless pipeis a long strip of steel with a hollow cross-section and no seams around it. Steel pipes have a hollow cross-section and are widely used as pipelines for transporting fluids, such as oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, alloy steel seamless pipe are lighter in weight when their bending and torsional strength are the same. They are a type of economical cross-section steel and are widely used in the manufacturing of structural and mechanical components, such as petroleum transportation, staircase handrails, bicycle racks, and steel scaffolding used in construction. Manufacturing circular parts with alloy seamless steel pipes can improve material utilization, simplify manufacturing processes, save materials and processing time, such as rolling bearing rings, jack sleeves, etc. Steel pipes have been widely used for manufacturing.

Composition of alloy steel seamless pipe
The key purpose of organic chemical composition testing for alloy steel seamless pipe is to distinguish whether the batch of finished pipes meets the product execution standards of the steel grade, and to use the analysis results of this analysis as the basis for judging the batch of finished pipes.
Inspection of Production Process Flow for Alloy Steel Seamless Pipe
Selection of Qualitative Analysis Standards for Spectrometers
For the qualitative analysis of spectrometer, especially for the qualitative analysis of low component elements, in order to better have a low detection limit and high accuracy, in addition to paying high attention to the light source selection, shutter speed, etc. concerned in the qualitative research, special attention should be paid to the following issues:

  1. Sample solution: During the production process of the test piece, avoid environmental pollution caused by special tools, and prevent overheating from oxidizing the surface air during the production process of the test piece. The surface of the test piece that is produced and processed intact should not have defects such as cracks, impurities, sand holes, etc. The compressive strength of the spectral line is related to the appearance, size, and total effective area of the lamp source. Although the current and output power of the excitation light source are the same, the surface layer of the specimen may have different electrical flow sizes due to the above factors, resulting in differences in elemental volatilization, excitation, and environmental temperature. Therefore, the preparation method, appearance, and size of standard and test pieces should be as similar as possible. In other words, when analyzing the test sample, the criteria for the position of the trigger should be as close as possible.
  2. Assist in selecting electrical levels: The minimum requirement for assisting electrical levels is not to include the tested element or its material being spectrometer pure; 3. Selection of analysis gaps: During the production process of curve graphs and the analysis process of unknown test pieces, it is necessary to ensure that the gaps between the test pieces and the electrical level analysis are consistent, especially after cleaning, maintenance, and before the analysis; 4. Selection of shutter speed: For the length issue of shutter speed, it depends on the analysis of factors such as the composition of the original elements, spectral line characteristics, and excitation light source in the specimen. The specific method is to measure the luminosity of the sample using the known component specification, calculate the corresponding amount, and use the shutter speed that is consistent with the standard component to measure the shutter speed of the unknown sample. Do this when creating curves in the work.
    After analyzing the data, the instrument and equipment are used to stimulate the analysis of the specimen. After comparing the analysis conclusion with the standardized specimen, the analysis conclusion is given after rounding according to the GB/T8170 data information rounding rules. In product testing, to ensure the accuracy of carbon and sulfur element analysis. Select a carbon and sulfur analyzer to analyze these two elements.
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