Process for spraying anticorrosive coating of epoxy powder on steel pipe

The invention relates to a spraying process for an epoxy powder anticorrosive layer of a steel pipeline, which comprises a plurality of procedures such as internal surface derusting, medium frequencypreheating, impeller blasting derusting outside the pipe, internal surface dedusting, in-tube epoxy p...

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Bibliographische Detailangaben
Hauptverfasser:	WU FENGKAI, WANG XUEGUO, YI HONGBING, ZHANG DEWU, WANG YONGGANG, XIE WANGMIN, WU DEXING, SUN JIE, WU LIWEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL GRINDING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PERFORMING OPERATIONS POLISHING TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a spraying process for an epoxy powder anticorrosive layer of a steel pipeline, which comprises a plurality of procedures such as internal surface derusting, medium frequencypreheating, impeller blasting derusting outside the pipe, internal surface dedusting, in-tube epoxy powder spraying, external surface dedusting, medium frequency heating, epoxy powder spraying outsidethe pipe, water cooling and quality testing and warehousing. The process has advantages of reasonable design and easy implementation, and the process can be utilized to ensure the quality and production efficiency of the epoxy powder anticorrosive coating of the steel pipeline, and acquire good economic benefit.