| 摘要 |
FIELD: technological processes. ^ SUBSTANCE: invention relates to pipe rolling, designs of pipe-rolling mills, namely to pitch rolling mills, and may be used in installations with Pilger rolling mills. Pitch slant rolling mill comprises stand that includes bed plate, driving rollers, every of which is mounted in rotary cassette, mechanisms of rollers displacement, main drive, inlet and outlet sides, there are four rollers installed in mill in cassettes arranged at the angle of 90 relative to each other, at the same time one pair of rollers arranged opposite to each other may rotate at the positive angle of feed, and the second one - at the negative one, axles of roller journals are displaced relative to axles of rollers, and opposite pairs of rollers are installed with the possibility of approaching and divergence of their surfaces in antiphase. ^ EFFECT: reduced allowances along wall thickness and improved quality of outer pipe surface. ^ 3 cl |
