| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to metal forming, particularly specialised roll mills to produce roll-formed shapes. Mill comprises two various-diametre roll-stands, larger-diametre roll making top roll and rolls running in pads-bearings. Top rolls of all stands, apart from two last stands, can move horizontally long formed strip travel through amount depending upon bottom roll diametre. Note here that vertical edges of shifted top roll pads rests upon compression springs fitted stand posts on the stand outlet side. Spring compression force in every stand depends upon maximum tolerable metal pressure in shaping at given stand. ^ EFFECT: higher quality of roll-formed shapes, reduced wear of rolls. ^ 1 dwg, 1 ex |
