CN1037852A - Increase the method for the friction between rolling tool and rolled products and the roll that is suitable for - Google Patents
Increase the method for the friction between rolling tool and rolled products and the roll that is suitable for Download PDFInfo
- Publication number
- CN1037852A CN1037852A CN89102588A CN89102588A CN1037852A CN 1037852 A CN1037852 A CN 1037852A CN 89102588 A CN89102588 A CN 89102588A CN 89102588 A CN89102588 A CN 89102588A CN 1037852 A CN1037852 A CN 1037852A
- Authority
- CN
- China
- Prior art keywords
- roll
- groove
- section
- rolled products
- increase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
- B23C3/34—Milling grooves of other forms, e.g. circumferential
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
-
- 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
- B21B1/16—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/20—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 wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a non-continuous process,(e.g. skew rolling, i.e. planetary cross rolling)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Rolling (AREA)
- Friction Gearing (AREA)
Abstract
Increase the method that rubs between roll and rolled products when the present invention relates to planetary rolling.Increase friction and can prevent that roll from skidding, can make the outer surface of rolled products acquisition simultaneously than the more first cunning of existing method.For increasing friction, certain section of roller surface is through finishing.Band of the present invention relates to the roll of making in this way.
Description
The present invention relates to when planetary rolling, increase the method for the friction between roll and rolled products.Can prevent skidding of roll in this way, make product in the operation of rolling, can obtain the outer surface more smooth simultaneously than existing method.In order to increase friction, some section of roller surface is through finishing.The invention still further relates to the roll of making according to the method described above.
When pipe or excellent section were carried out planetary rolling, the roll arrangement of three band taperings became to be each other hexagonal angle.Every roll also rotates around planetary central point simultaneously all around the axis rotation of self.An obtainable drafts is very big in a rolling pass, even surpasses 90%.The abbreviation of normally used planetary rolling is PSW(planet cross roll roll piercing mill Planetenschraegwalzwerk), and this milling train is by several patent protections.
Particularly when rolling copper and copper alloy, convention up to the present is to utilize a special rough region, that is: the beginning of depressing section at roll partly makes it become coarse with the method for spraying plating steel wire.Produce necessary friction between roll and the blank in order to make, it is necessary doing like this.If use level and smooth roll rolling, generation skidded; Its result, the extruded velocity of rolled products slows down, and shake and preshoot also can take place in blank in the operation of rolling.Like this, also out-of-flatness of the outer surface of pipe.
Facts have proved, make roller surface become coarse and also be harmful to for the outer tube surface quality.Because coarse section makes the outer surface of pipe produce tiny crackle, and these crackles can not be eliminated in rolling final stage, cause the outer surface of the rolling pipe that obtains shattered crack to be arranged or claim microfissure.Face crack is harmful to, because it can not be eliminated in rolled products drawing processing subsequently.
According to the present invention,, adopt the section that replaces rough surface on the above-mentioned the sort of roll in the way that processes some grooves on the roll for increasing the friction between roll and rolled products.Because opposite with people's the common notion of being familiar with this technical field, test of many times makes us finding uncannily that these grooves not only do not cause defective on product, make product surface have good quality on the contrary.The new essential characteristics that the present invention had sees claims of this case.
According to the present invention, on the roll of planetary rolling, be easy to process some grooves at the section of depressing of roll with turning or method for grinding.The number of these grooves is the 1-20 bar; The degree of depth of groove is the 0.05-5 millimeter, is preferably the 0.1-0.5 millimeter; The width of groove is the 1-10 millimeter, and its garden, edge slips over to be crossed.
Further describe the present invention with reference to the accompanying drawings.Fig. 1 is the example of expression roll General Principle of the present invention.
As seen from Figure 1, roll generally comprises three sections.What rolling blank at first contacted is to depress section 1.Next section is level and smooth section 2, determines the wall thickness of pipe or other blanks.Last section is a shaping section 3, and pipe rolls into garden shape through finishing on this section.As seen from Figure 1, groove 4 is opened depressing on the section 1 at roll.Through evidence, the groove of making in this way can obtain enough frictions, can prevent that blank from shake and preshoot taking place in the operation of rolling.Test proves that also groove wearing and tearing in use are slower than the section of above-mentioned the sort of rough surface.
Practice shows, when adopting the roll of above-mentioned the sort of rough surface, can produce microfissure on the surface of rolling workpiece, and its degree of depth is between the 0.05-0.1 millimeter.According to the evidence of being finished, when adopting the roll of open channels and polishing, tube surface does not produce harmful microfissure.
Claims (14)
1, increase the method that rubs between roll and rolled products during planetary rolling, it is characterized in that: have groove on the section depressing of roll, its degree of depth is in 0.05-5 millimeter scope.
2, the method for claim 1 is characterized in that: the degree of depth of groove is preferably in the 0.1-0.5 millimeter scope.
3, the method for claim 1 is characterized in that: the number of groove is the 1-20 bar.
4, the method for claim 1 is characterized in that: the width of groove is in 1-10 millimeter scope.
5, the method for claim 1 is characterized in that: groove is that the garden slips over and crosses.
6, the method for claim 1 is characterized in that: groove processes with turning.
7, the method for claim 1 is characterized in that: groove forms with grinding.
8, be used for the roll of planetary rolling, it is characterized in that: depressing of roll has groove 4 on the section 1, the degree of depth of groove is the 0.05-5 millimeter.
9, roll as claimed in claim 8 is characterized in that: the degree of depth of groove 4 is the 0.1-0.5 millimeter preferably.
10, roll as claimed in claim 8 is characterized in that: the number of depressing groove 4 in the section is the 1-20 bar.
11, roll as claimed in claim 8 is characterized in that: the width of groove 4 is in 1-10 millimeter scope.
12, roll as claimed in claim 8 is characterized in that: groove 4 is that the garden slips over and crosses.
13, roll as claimed in claim 8 is characterized in that: groove 4 usefulness turning process.
14, roll as claimed in claim 8 is characterized in that: groove 4 usefulness grindings form.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI881193 | 1988-03-14 | ||
| FI881193A FI881193A (en) | 1988-03-14 | 1988-03-14 | SAETT ATT OEKA FRIKTIONEN MELLAN VERKTYGET OCH PRODUKTEN SOM VALSSAR SAMT FOER AENDAMAOLET LAEMPLIG VALS. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1037852A true CN1037852A (en) | 1989-12-13 |
Family
ID=8526078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89102588A Pending CN1037852A (en) | 1988-03-14 | 1989-03-14 | Increase the method for the friction between rolling tool and rolled products and the roll that is suitable for |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPH01273605A (en) |
| KR (1) | KR890014196A (en) |
| CN (1) | CN1037852A (en) |
| AU (1) | AU3130189A (en) |
| DD (1) | DD284617A5 (en) |
| DE (1) | DE3908147A1 (en) |
| FI (1) | FI881193A (en) |
| FR (1) | FR2628348A1 (en) |
| GB (1) | GB2216448A (en) |
| MX (1) | MX171007B (en) |
| NL (1) | NL8900597A (en) |
| PL (1) | PL278187A1 (en) |
| SE (1) | SE8900796L (en) |
| YU (1) | YU51389A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151699A (en) * | 2010-12-09 | 2011-08-17 | 西南铝业（集团）有限责任公司 | Aluminum alloy strip material rolling method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01314324A (en) * | 1988-06-14 | 1989-12-19 | Sony Corp | Touch panel device |
| DE10030823C2 (en) * | 2000-06-23 | 2003-08-07 | Gmt Ges Fuer Metallurg Technol | 3-roll cross-rolling mill |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2017386A (en) * | 1933-09-21 | 1935-10-15 | Bannister Bryant | Apparatus for forming tubular blanks |
| GB576199A (en) * | 1944-04-25 | 1946-03-22 | Clarence Lennon Dewey | Tube reducing method and mechanism |
| SU761041A1 (en) * | 1978-07-18 | 1980-09-07 | Dn Metall Inst | Method of screw expanding of tubes |
| SU778833A2 (en) * | 1978-11-10 | 1980-11-20 | Московский Ордена Трудового Красного Знамени Институт Стали И Сплавов | Skew-roll mill technological tool |
| DE2854510A1 (en) * | 1978-12-16 | 1980-06-26 | Kabel Metallwerke Ghh | Rolling down bars by means of conical rollers - which have circumferential longitudinal ridges to prevent slip |
| FR2551995A1 (en) * | 1983-09-21 | 1985-03-22 | Eschweiler Bergwerksverein | Planetary rolling mill with slant (skew) rolls |
-
1988
- 1988-03-14 FI FI881193A patent/FI881193A/en not_active Application Discontinuation
-
1989
- 1989-03-07 SE SE8900796A patent/SE8900796L/en not_active Application Discontinuation
- 1989-03-07 GB GB8905145A patent/GB2216448A/en not_active Withdrawn
- 1989-03-13 DE DE3908147A patent/DE3908147A1/en not_active Withdrawn
- 1989-03-13 YU YU00513/89A patent/YU51389A/en unknown
- 1989-03-13 PL PL27818789A patent/PL278187A1/en unknown
- 1989-03-13 NL NL8900597A patent/NL8900597A/en not_active Application Discontinuation
- 1989-03-14 JP JP1059882A patent/JPH01273605A/en active Pending
- 1989-03-14 MX MX015268A patent/MX171007B/en unknown
- 1989-03-14 DD DD89326584A patent/DD284617A5/en not_active IP Right Cessation
- 1989-03-14 AU AU31301/89A patent/AU3130189A/en not_active Abandoned
- 1989-03-14 KR KR1019890003144A patent/KR890014196A/en not_active Application Discontinuation
- 1989-03-14 CN CN89102588A patent/CN1037852A/en active Pending
- 1989-03-14 FR FR8903285A patent/FR2628348A1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151699A (en) * | 2010-12-09 | 2011-08-17 | 西南铝业（集团）有限责任公司 | Aluminum alloy strip material rolling method |
Also Published As
| Publication number | Publication date |
|---|---|
| SE8900796D0 (en) | 1989-03-07 |
| DD284617A5 (en) | 1990-11-21 |
| FI881193A0 (en) | 1988-03-14 |
| FR2628348A1 (en) | 1989-09-15 |
| NL8900597A (en) | 1989-10-02 |
| GB2216448A (en) | 1989-10-11 |
| DE3908147A1 (en) | 1989-09-28 |
| AU3130189A (en) | 1989-09-14 |
| KR890014196A (en) | 1989-10-23 |
| SE8900796L (en) | 1989-09-15 |
| MX171007B (en) | 1993-09-24 |
| GB8905145D0 (en) | 1989-04-19 |
| YU51389A (en) | 1991-04-30 |
| JPH01273605A (en) | 1989-11-01 |
| PL278187A1 (en) | 1989-10-16 |
| FI881193A (en) | 1989-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |