SU954131A1 - Method of cleaning metallic strip surfaces from scale - Google Patents
Method of cleaning metallic strip surfaces from scale Download PDFInfo
- Publication number
- SU954131A1 SU954131A1 SU802987088A SU2987088A SU954131A1 SU 954131 A1 SU954131 A1 SU 954131A1 SU 802987088 A SU802987088 A SU 802987088A SU 2987088 A SU2987088 A SU 2987088A SU 954131 A1 SU954131 A1 SU 954131A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- strip
- scale
- layer
- scratches
- pressure
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/06—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing of strip material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
1one
Изобретение относитс к листопрокатному производству, в частности к очистке металлических полос от окалины .The invention relates to sheet-rolling production, in particular to the cleaning of metal strips from scale.
Известен способ очистки поверхности полос от окалины, включающий травление полосы в кислотных растворах с предшествующим ему механическим разрушением сло окалины путем многократного перегиба полосы, раст жени , дрессировки и др. При этом в трещины, образующиес при разрушении окалины, проникает кислота, реакци которой с основным металлом идет с образованием водорода, взламывающего слой окалины, что обеспечивает доступ и дальнейшее поступление к металлу травильного раствораЩ.A known method of cleaning the surface of strips from scale, including etching a strip in acid solutions with a mechanical breakdown of the scale, preceding it by repeated bending of the strip, stretching, tempering, etc. At the same time, cracks formed during the destruction of the scale penetrates the acid, which reacts with the main metal goes with the formation of hydrogen, cracking a layer of scale, which provides access and further flow to the metal of the pickling solution.
Однако известный способ механического разрушени сло окалины не обеспечивает высокую производительность и качество травлени полосы, так как наружный гематитовый слой окалины обладает высокой прочностьюHowever, the known method of the mechanical destruction of the scale layer does not ensure high performance and quality of strip etching, since the external hematite layer of scale has high strength.
и под действием напр жений только сжати И раст жени местами ие -разрушаетс . В результате этого на полосе остаютс недотравы, а при увеличении времени травлени снижаетс производительность процесса и образуютс участки перетрава.and under the action of stresses only squeezing And stretching in places, and is not destroyed. As a result, undertravels remain on the strip, and with an increase in the time of etching, the productivity of the process decreases and overgrass regions are formed.
Цель изобретени - повышение производительности и качества травлени полосы.The purpose of the invention is to increase the productivity and quality of etching of the strip.
«о"about
Поставленна цель достигаетс тем, что при осуществлении способа очистки полосы от окалины, включающего предварительно механическое разрушение сло окалины и последую 5 щее травление полосы, в упом нутое механическое разрушение сло окалины включают нанесение царапин на поверхности полосы.This goal is achieved by the fact that during the implementation of the method of cleaning the strip from scale, which includes the preliminary mechanical destruction of the layer of scale and the subsequent 5 etching of the strip, the said mechanical destruction of the layer of scale includes the application of scratches to the surfaces of the strip.
2020
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802987088A SU954131A1 (en) | 1980-09-22 | 1980-09-22 | Method of cleaning metallic strip surfaces from scale |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802987088A SU954131A1 (en) | 1980-09-22 | 1980-09-22 | Method of cleaning metallic strip surfaces from scale |
Publications (1)
Publication Number | Publication Date |
---|---|
SU954131A1 true SU954131A1 (en) | 1982-08-30 |
Family
ID=20919677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU802987088A SU954131A1 (en) | 1980-09-22 | 1980-09-22 | Method of cleaning metallic strip surfaces from scale |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU954131A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0304496A4 (en) * | 1987-03-03 | 1989-02-02 | Cherepovets Volog Politekh I | Method of abrasive-powder descaling of strip. |
WO1991012096A1 (en) * | 1990-02-14 | 1991-08-22 | Cherepovetsky Filial Vologodskogo Politekhnicheskogo Instituta | Method for descaling the surface of hot-rolled strip |
-
1980
- 1980-09-22 SU SU802987088A patent/SU954131A1/en active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0304496A4 (en) * | 1987-03-03 | 1989-02-02 | Cherepovets Volog Politekh I | Method of abrasive-powder descaling of strip. |
EP0304496A1 (en) * | 1987-03-03 | 1989-03-01 | Cherepovetsky Filial Vologodskogo Politekhnicheskogo Instituta | Method of abrasive-powder descaling of strip |
US4920705A (en) * | 1987-03-03 | 1990-05-01 | Lipukhin Jury V | Method of abrasive powder descaling of a strip |
WO1991012096A1 (en) * | 1990-02-14 | 1991-08-22 | Cherepovetsky Filial Vologodskogo Politekhnicheskogo Instituta | Method for descaling the surface of hot-rolled strip |
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