Carbon Steel Pipe

Μεγέθη του άνθρακα Steel Pipe

Βαθμολογία:

Σημείωση: κατηγορίες, εκτός από το διάγραμμα π.μ. μπορούν να διατίθενται μέσω διαβουλεύσεων.

Chemical Composition (%):

Σημείωση: κατηγορίες, εκτός από το διάγραμμα π.μ. μπορούν να διατίθενται μέσω διαβουλεύσεων.

Hot Rolling Seamless Steel Line Pipe Manufacturing / Production Processes

Rolled Round Billets – Examination – Cut Off – Heating – Piercing – Elongation – Slight Tension Reducing – Straightening – Corp End Cutting Off – Visual Inspection – NDT – Hydrostatic Test – Ends Procession – Product Inspection – Painting and Marking – Packing – Warehousing
Cold Drawn (Rolled) Seamless Steel Pipe Manufacturing Process

Mother pipe (Normally for hot rolled pipe) – Inspection – Annealing – Ends Treatment (Hitting and Drilling hole) – Pickling – Grinding – Phosphorization (Annoit) – Cold Drawn (Rolled) – Degreasing and Cleaning – Heat treatment (Solution treatment) – Straightening – Hydrostatic test – Painting and Marking – Warehousing

Surface Treatment of Steel Pipe:

Για τη βελτίωση της ζωής των αγωγών πετρελαίου, επιφανειακή επεξεργασία πραγματοποιείται συνήθως για να διευκολύνουν την επιχείρηση συνδυασμό των σωλήνων χάλυβα και αντιδιαβρωτικά μεθόδους επεξεργασίας coating.Common είναι: καθαρισμός, το εργαλείο της αφαίρεσης, διεργασίες καθαρισμού, αμμοβολής της αφαίρεσης τέσσερις κατηγορίες.

1. Cleaning grease, dust, lubricant, organic matter adhered on the surface of steel pipe, usually using solvent, emulsion to clean the surface. However, the rust, oxide skin and welding slag on the surface of the steel pipe cannot be removed, so other treatment methods are needed. Tool rust removal Steel pipe surface oxide, rust, welding slag, can use steel wire brush to clean and polish the surface treatment.Tool derusting can be divided into manual and power, manual tool derusting can reach SA.
2. Level, power tool derusting can reach Sa3 level. If the surface of steel pipe is attached with a particularly strong oxide skin, it may be impossible to remove the rust with the help of tools, so we need to find other ways.
3. Pickling common pickling methods include chemistry and electrolysis. But only chemical pickling is used for pipeline corrosion protection. Chemical pickling can achieve a certain degree of cleanliness and roughness on the surface of steel pipe, which is convenient for subsequent anchor lines. Usually as a shot (sand) after reprocessing.
4. Shot blasting for rust removal by high power motor drive the high-speed rotating blades, steel grit, steel shot, segment, minerals and other abrasive wire under the action of centrifugal force on steel pipe surface spray and mass ejection, thoroughly remove rust, oxides and dirt on one hand, on the other hand, steel pipe under the action of abrasive violent impact and friction force, to achieve the required uniform roughness. Among the four treatment methods, shot blasting and derusting is an ideal treatment method for pipe derusting. Generally, shot blasting and derusting are mainly used for inner surface treatment of steel pipe, and shot blasting and derusting are mainly used for outer surface treatment of steel pipe.

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