METHOD FOR CORRECTING PIPE AND METHOD FOR PRODUCING PIPE BY USING THAT CORRECTION METHOD

In straightening a tube using a roll straightening machine provided with drum type straightening roll pairs vertically opposingly disposed, at least an outer layer portion of a roll main body is made of elastic material having spring type hardness Hs (JIS K 6301 A type) of 50 to 100 in at least thre...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TSUYUGUCHI, Satoshi, KURODA, Kouichi, YAMAKAWA, Tomio
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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