Elaborate,Method,Seamless,Stee business, insurance Elaborate Method of Seamless Steel Pipe Corrosion
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Surface treatment is the impact on the life of the coating, dominating, pipe coating and decided to extend the life of the seamless steel pipe is subjected to surface treatment, it should continue to improve seamless steel surface treatment.Surface strength seamless steel pipe, the surface roughness of the original rust into a degree, abrasive coating material to choose, in order to achieve better results, as well as the role of grit etched steel surface, has strengthened steel shot the role of steel surface, mixing abrasive steel shot and grit, for it can be a single layer of epoxy easier to achieve the desired effect.Seamless tube, before the outer wall surface rust should be pretreated, the outer surface of the grease, dirt, debris clean, ensure inner and outer walls smooth surface. Inner and outer walls after cleared, artificial rust, rust and iron oxide to the outer surface of the cleaned metal surface rust treatment to meet the requirements grade standards. Seized by rust after passing inspection, should be within 8 hours of brushing the primer. In case of bad atmospheric environment (such as high humidity, salt spray containing air), should further shorten the time. Primer before painting in strict accordance with the manufacturer's technical documentation requirements for mixing, proportioning, ripening. Brushing steel tube should be dry, dust-free. Primer using manual brushing, according to the first axial Later Zhou Dynasty to the steps. Brushing paint to full uniform, no bubbles, no clots, no flowing, seamless brush. And should brush the outer wall once finished, primer thickness of 0.1 ~ 0.2mm, both ends of the pipe is not left bare tube 150mm brush, and easy to weld steel group. At room temperature, priming and finish the first interval of time should not exceed 24 hours. Pipeline corrosion paint brush, depending on the nature of the anti-corrosion paint, paint a good tune, with soft and hard appropriate brush dipped in paint brush pipe surface. Brushing force uniform, kicked around, there should be flowing and piled brush and leakage phenomenon. Anti-corrosion coating paint brush to be divided over the conduct, and so again before the paint dry and then brushing the next pass.There abrasive roughness is too easy to Cao coating thin, because too deep anchor pattern will form bubbles in the corrosion process, thereby seriously affecting the performance of the coating, such as roughness is too small, it will lead coating impact strength decreased adhesion, abrasive proportion and design is very important, can not rely on large high impact abrasive particles to resolve internal pitting, if you want to rely on the cleaning effect of small particles polished off corrosion products, not only to improve the utilization of the abrasive but also slow down the pipes and nozzles for abrasive wear, the steel surface remains dry, pre-treatment should be cleaned and preheat the surface dirt to be removed by washing the anti-method.Seamless steel pipe in the method of preventing corrosion and corrosion costs when the gas depending on different pressure seamless steel pipe to be protected, and the environment is extremely different uses and delivery to positioning.
Elaborate,Method,Seamless,Stee