FIELD: technological processes.
SUBSTANCE: method includes steps of rolled bent billet belt (16) in sequential inter rolls gaps formed by at least one pair of rolls, which includes upper cambered roll (26) and lower cambered roll (28), wherein first groove (42) of upper roller (26) forms first angle (18) and adjacent first part of curved workpiece belt (16) and in first groove (46) of lower roller (28) second angle (20) is formed, and also in adjacent second part of curved workpiece belt (16). Reduced wear of rolls is ensured by fact that in last inter rolls gaps which form bent billet belt (16), diameter of lower roll (28) decreases in intermittent manner in interval between first groove (42) in upper roll (26) and first groove (46) in lower roll (28), and diameter of upper roller (26) increases in specified range in complementary manner.
EFFECT: disclosed is method of tongue pile rolling with Z-shaped profile.
15 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| WELDED GROOVED PILE AND METHOD FOR ITS MANUFACTURE | 1995 |
|
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|
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| METHOD OF ERECTING TONGUE-AND-GROOVE ENCLOSURE DURING MAIN PIPELINE OPERATIONS AND SHEET COLLAPSIBLE ENCLOSURE FOR CONSTRUCTION OF PIT | 2018 |
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RU2705674C2 |
