What factors affect the quality of anti-corrosion steel pipes?
Release time:
2021-12-27
Anti-corrosion steel pipe is a widely used, property-controlled steel primarily employed for transporting fluid substances. It is also extensively utilized as a mechanical component and is an exceptionally well-suited controlled steel. Due to its outstanding performance, it plays an irreplaceable role in social production and daily life. Therefore, for steel pipes, their quality directly determines their value. So, what factors influence the quality of anti-corrosion steel pipes? Here’s a detailed introduction from our editor.
Anti-corrosion steel pipe It is a widely used property-controlled steel, primarily employed for transporting fluid substances. At the same time, it is also extensively used as mechanical components, making it an exceptionally suitable controlled steel. Due to its outstanding performance, it plays an irreplaceable role in social production and daily life. Therefore, for steel pipes, their quality directly determines their value. So, what factors influence the quality of corrosion-resistant steel pipes? Here’s a detailed introduction from our editor.
Cooling and Lubrication in Anti-corrosion Steel Pipe Production: The cooling quality of the piercing mandrel and rolling rolls not only affects their service life but also influences the quality control of both the inner and outer surfaces of the finished product. The cooling and lubrication quality of the core rod primarily impacts the inner surface quality of the steel pipe, the accuracy of wall thickness, and the consumption of the core rod; it also affects the load during the rolling process.
Removal and Control of Surface Impurities in the Base Material of Anti-corrosion Steel Pipes: This refers to the timely and effective removal of oxide scale from both the inner and outer surfaces of capillary tubes and scrap pipes, as well as the control of re-oxidation prior to rolling deformation. Specifically, nitrogen blowing and borax spraying are applied to the inner bore of capillary tubes; high-pressure water cleaning and sizing (reducing diameter) at the inlet of the rolled pipe can effectively improve and enhance the quality of both the inner and outer surfaces.
Temperature is a key factor affecting the quality of steel tubes. First, the uniformity of the heating temperature of the tube billet directly influences the uniformity of the wall thickness and the quality of the inner surface of the pierced capillary, thereby impacting the overall wall-thickness quality of the final product. Second, during the rolling process, the temperature and its uniformity of the steel tube are critical to the mechanical properties of the product delivered in the hot-rolled state, as well as to dimensional accuracy—including outer diameter—and surface quality. In particular, if the steel billet or tube billet overheats or even burns, it can result in defective products.
In short, many factors influence the quality of anti-corrosion steel pipes, and these factors often interact in a complex manner. Therefore, it is essential to effectively control the major influencing factors mentioned above.
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