Abstract The present invention relates to a method of rolling metal sheet articles between driven rolls of rolling mills, the driven rolls being rotated in opposite directions at different peripheral speeds. A stretching strain is applied to the delivery section of the article, and the process is effected with the ratio between the peripheral speeds of the rolls being not less than the reduction of the article being rolled, and with the rate of travel of the delivery end of the article being equal to the peripheral speed of the driving roll that is rotated at a greater speed. The invention also discloses mills for effecting the present method, which are provided with means for insuring the required ratios between the peripheral speeds of the rolls.
Inventors
👤 V Vydrin
👤 L Ageev
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-01 17:05
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/22; B21B1/222
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
126 words
A method of rolling metal sheet articles by reducing between two driven rolls, comprising; rotating the rolls in opposite directions so that the peripheral speed of one Driven roll is greater than the peripheral speed of the other driven roll at a predetermined speed differential, said speed differential being in the same proportion as the thickness of the article before reduction is greater than the thickness thereof after reduction between said pair of rolls; adjusting the speed of the article leaving the reduction zone to equal the peripheral speed of the driven roll rotating at said greater speed, and applying a stretching strain to the end of the article leaving the rolls, while moving the article along a straight path during the rolling and reduction process.
Claim 2
Independent Claim
126 words
A method of rolling metal sheet articles by reducing between two driven rolls, comprising; rotating the rolls in opposite directions so that the peripheral speed of one Driven roll is greater than the peripheral speed of the other driven roll at a predetermined speed differential, said speed differential being in the same proportion as the thickness of the article before reduction is greater than the thickness thereof after reduction between said pair of rolls; adjusting the speed of the article leaving the reduction zone to equal the peripheral speed of the driven roll rotating at said greater speed, and applying a stretching strain to the end of the article leaving the rolls, while moving the article along a straight path during the rolling and reduction process.
Claim 3
Dependent Claim
38 words
A method of rolling as claimed in claim 1, including applying a stretching load to the end of the article entering the rolls simultaneously with applying a stretching load to the end of the article leaving the rolls.