ROLLER FOR PRODUCING WELDED STEEL PIPE

A roller for producing welded steel pipes, and particularly a high chromium cast iron roller for producing welded steel pipes, the composition thereof by weight percentage being: C: 1.80-2.60%, Si: 0.20-1.20%, Mn: 0.30-1.00%, P: ≤0.030%, S: ≤0.025%, Cr: 16.00-28.00%, Ni: 1.00-3.20%, Mo: 0.20-1.60%,...

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Bibliographische Detailangaben
Hauptverfasser:	LIU, XINGYI, YUAN, HOUZHI, WANG, PING, ZHANG, NING
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A roller for producing welded steel pipes, and particularly a high chromium cast iron roller for producing welded steel pipes, the composition thereof by weight percentage being: C: 1.80-2.60%, Si: 0.20-1.20%, Mn: 0.30-1.00%, P: ≤0.030%, S: ≤0.025%, Cr: 16.00-28.00%, Ni: 1.00-3.20%, Mo: 0.20-1.60%, Nb: 0.10-0.50%, Ti: 0.05-0.20%, RE: 0.02-0.20%, and the balance being Fe. The roller for producing welded steel pipes is used for the production of welded steel pipes for replacing steel rollers of forged alloy tools, which solves the problems of high energy consumption, a low utilization ratio of a material, high cost and a long production period of the alloy tool steel rollers during processing and manufacturing. L'invention porte sur un rouleau pour la fabrication de tuyaux en acier soudés et, en particulier, sur un rouleau en fonte à haute teneur en chrome pour la fabrication de tuyaux en acier soudés, sa composition en pourcentage en poids étant la suivante : 1,80 à 2,60 % de C, 0,20 à 1,20 % de Si, 0,30 à 1,0