SU822933A1 - Method of producing bar billets - Google Patents
Method of producing bar billets Download PDFInfo
- Publication number
- SU822933A1 SU822933A1 SU792800265A SU2800265A SU822933A1 SU 822933 A1 SU822933 A1 SU 822933A1 SU 792800265 A SU792800265 A SU 792800265A SU 2800265 A SU2800265 A SU 2800265A SU 822933 A1 SU822933 A1 SU 822933A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- billets
- bridges
- quality
- separation
- workpieces
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/0815—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel from flat-rolled products, e.g. by longitudinal shearing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
1one
Изобретение относитс к прокатному производству, в частности к производству сортовой заготовки из сл бов и может быть применено в прокатных цехах металлургических .заводов.The invention relates to rolling production, in particular to the production of high-grade slab billets and can be applied in rolling shops of metallurgical plants.
Известен способ калибровки прокатных валков, содержащий рабочие диски-бурты , разделенные пр моугольными ручь ми, причем рабочие диски-бурты . одного валка располагают против соответствующих , однаковых с ними по ширине, ручьев другого валка.A known method for calibrating mill rolls, containing working piles, divided by right-angle creeks, the working disks being pits. one roll is placed against the corresponding, one-width with them, width, streams of the other roll.
способ калибровки предназначен дл получени методом многоручьевой прокатки сортовых пр моугольных заготовок 1. The calibration method is intended for multi-strand rolling of varietal rectangular billets 1.
Недостатком известного способа вл етс некачественное разделение заготовок (вследствие образовани заусенцев в местах разделени при .разрыве перемлчки) и искажение формы крайних заготовок в св зи с их сваливанием при прокатке.The disadvantage of the known method is poor-quality separation of the blanks (due to the formation of burrs at the points of separation when. The shredding breaks) and distortion of the shape of the extreme blanks in connection with their stalling during rolling.
Известен способ производства сортовых заготовок, включаквдий прокатку из исходной заготовки в двухручье вом калибре одновременно двух соединенных между собой перемычками заготовок и последующее их разделейие путем разрушени перемычек 27.A known method for the production of varietal billets, including rolling from the original billet in a two-strand caliber, at the same time, two billets joined together by bridges and their subsequent separation by destroying the bridges 27.
Недостатком известного способа разделени слитков в замкнутых калибpax вл етс невысокое качество поверхности разделени вследствие возникновени раст гивающих напр жений в перемычке вне валков на входе в очаг деформгщии, привод щих к образованию разрывов на поверхности разделени .A disadvantage of the known method of separating ingots in closed gauges is the low quality of the separation surface due to the occurrence of tensile stresses in the jumper outside the rolls at the entrance to the deformation zone, leading to the formation of discontinuities on the separation surface.
Цель изобретени - повышение качества поверхности разделени .The purpose of the invention is to improve the quality of the separation surface.
Поставленна цель достигаетс тем, что при прокатке из исходной заготовки одновременно двух соединенных перемычками заготовок и их последующем разделении, после достижени толщины перемычки, равной 0,010 ,1 высод ы заготовок, попеременно к верхней и .нижней вершинс1м заготовокThis goal is achieved by the fact that, when rolling from the initial billet at the same time, two billet-joined blanks and their subsequent separation, after reaching the thickness of the jumper, is 0.010, 1 height of the blanks, alternately to the upper and lower vertex1m blanks
прикладывают противонешравленныеapply anti-tempered
УСИ.ЛИЯ в шоскости, парёшлельно общей плоскости симметрии заготовки.USILIA in the form of another, common plane of symmetry of the workpiece.
При приложении попеременно к верхней и нижней вершинам заготовок противонаправленных усилий в районеWhen applied alternately to the upper and lower tops of the workpieces of opposing forces in the region
соедин ющей заготовки перемычки возникают циклические, измен ющиес по знаку и амплитуде напр жени , котоE ie способствуют трещинообразованиюconnecting bridges jumpers arise cyclical, varying in sign and voltage amplitude, which, i.e., they contribute to the formation of cracks
к разрушению перемычки. При этом каto the destruction of the jumper. At the same time
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792800265A SU822933A1 (en) | 1979-07-18 | 1979-07-18 | Method of producing bar billets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792800265A SU822933A1 (en) | 1979-07-18 | 1979-07-18 | Method of producing bar billets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU822933A1 true SU822933A1 (en) | 1981-04-23 |
Family
ID=20842354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792800265A SU822933A1 (en) | 1979-07-18 | 1979-07-18 | Method of producing bar billets |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU822933A1 (en) |
-
1979
- 1979-07-18 SU SU792800265A patent/SU822933A1/en active
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