CN105080972A - Slit-rolling groove - Google Patents
Slit-rolling groove Download PDFInfo
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- CN105080972A CN105080972A CN201510534512.0A CN201510534512A CN105080972A CN 105080972 A CN105080972 A CN 105080972A CN 201510534512 A CN201510534512 A CN 201510534512A CN 105080972 A CN105080972 A CN 105080972A
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- pass
- groove
- slitting
- slit
- rolling
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Abstract
The invention discloses a slit-rolling groove. The slit-rolling groove comprises a pre-slitting groove K4, a slitting groove K3, an oval groove K2 and a final groove K1. The slit-rolling groove is characterized in that the height of the tank bottom of the pre-slitting groove K4 is 17.64mm, the roller wedge angle of the pre-slitting groove K4 is 88.5-89 degrees, and the circular arc radius of the wedge top of the pre-slitting groove K4 is 1.45-1.5mm; the height of the tank bottom of the slitting groove K3 is 14.5mm, the wedge angle of the slitting groove K3 is 50.5-51 degrees, and the circular arc radius of the wedge top of the slitting groove K3 is 0.6-0.9mm; the height of the tank bottom of the oval groove K2 is 8.5mm, and the height of the tank bottom of the final groove K1 is 11.2mm. Through the adoption of the slit-rolling groove disclosed by the invention, the good quality of products is guaranteed, the operation rate of a rolling machine is improved, the material consumption is reduced, the phenomenon of uneven slitting is avoided, midline folding is eliminated, the surface quality of finished products is improved, the size of finished products is stabilized, and the production efficiency is improved.
Description
Technical field
The present invention relates to multi wire cutting rolling technology field, particularly relate to a kind of splitting rolling pass.
Background technology
Splitting rolling is exactly in the operation of rolling, steel billet is rolled into the identical part in parallel of two or more section configurations by hole type design, then through cutting equipment, blank is longitudinally cut into the identical rolled piece of two or more section configuration, and continues rolling until obtain the rolling mill practice of finished product.Cutting band position burr, otch is irregular, rolls rear easy formation and folds, affect stocking surface quality, and when cutting method separates rolled piece in parallel, rolled piece easily reverses, and affects rolled piece quality.In splitting rolling process, because of the impact by factors such as pass schedule parameter, groove wearing and tearing, mill spring, guide and guard installations, each line workpiece measurement all can not be completely the same, length shows as existence four line or three line lines are poor, and negative deviation rate difference weight showing as existence is large.Existing slitting pass system otch is irregular, and roll rear easy formation and fold, affect stocking surface quality, rolled piece easily reverses, and affects rolled piece quality.
Summary of the invention
The technical assignment of technical problem to be solved by this invention and proposition improves prior art, a kind of splitting rolling pass is provided, solve slitting pass system otch traditional in current technology irregular, roll rear easy formation to fold, affect stocking surface quality, rolled piece easily reverses, and affects the problem of rolled piece quality.
For solving above technical problem, technical scheme of the present invention is:
A kind of splitting rolling pass, comprise pre-slit pass K4, slitting pass K3, oval groove K2 and last groove K1, it is characterized in that, the bottom land height of described pre-slit pass K4 is 17.64mm, angle carved by roll is 88.5 ° ~ 89 °, carving top arc radius is 1.45 ~ 1.5mm, the bottom land height of described slitting pass K3 is 14.5mm, angle carved by roll is 50.5 ° ~ 51 °, carving top arc radius is 0.6 ~ 0.9mm, described oval groove K2 bottom land height is 8.5mm, and the bottom land height of described last groove K1 is 11.2mm.Splitting rolling pass of the present invention arranged pre-cutting before cutting, pre-slit pass ensures that slitting pass can carry out the transitinal pass of cutting smoothly, its objective is the inhomogeneities reducing slitting pass, cutting wedge is made to complete the pressure location of the other side's rolled piece, and accurately distribute the cross-sectional area of rolled piece, alleviate the burden of slitting pass as far as possible, thus improve stability and the uniformity of cutting.Oval groove K2, last groove K1 carry out minus deviation design to finished hole within the scope of GB.
Further, the overall width of described pre-slit pass K4 is 63.4 ~ 64mm.
Further, the bottom radius of described pre-slit pass K4 is the bottom radius of 6.9 ~ 7mm, slitting pass K3 is 7 ~ 7.1mm.
Further, in the middle of two of described pre-slit pass K4, the center distance of pass is the center distance of two middle passes of 16.1mm, slitting pass K3 is 16.2mm.
Further, it is 0.8 ~ 1.1mm that described slitting pass K3 carves top spacing.
Further, be also provided with box fixed width passage K5 before described pre-slit pass K4, the wide aperture width of K5 is 56.2 ~ 56.8mm, strictly controls, avoid dimensional discrepancy large to precutting hole supplied materials size.
Compared with prior art, the invention has the advantages that:
Splitting rolling pass of the present invention ensures good product quality in kind, improves operating rate of rolling mill, reduces supplies consumption, improve roll, guide and guard assembly quality, ensure the strict centering of cutting wedge of slitting wheel and pass, prevent cutting non-uniform phenomenon, eliminate center line and fold, improve finished surface quality, stablize finished size, production efficiency improves, and production process controls stable, production target is excellent, and product quality reaches standard-required.
Accompanying drawing explanation
Fig. 1 is the structural representation of pre-slit pass;
Fig. 2 is the structural representation of slitting pass;
Fig. 3 is the structural representation of oval groove;
Fig. 4 is the structural representation of last groove.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of splitting rolling pass disclosed in the embodiment of the present invention, eliminates center line and folds, improve finished surface quality, stablize finished size.
As shown in Figures 1 to 4, a kind of splitting rolling pass, comprise pre-slit pass K4, slitting pass K3, oval groove K2 and last groove K1, the overall width L of described pre-slit pass K4 is that 63.4 ~ 64mm ensures the full level of rolled piece in slitting pass, the bottom land height a1 of pre-slit pass K4 is 17.64mm, angle b1 carved by roll is 88.5 ° ~ 89 °, carving tip circle arc c1 radius is 1.45 ~ 1.5mm, the bottom radius r1 of pre-slit pass K4 is 6.9 ~ 7mm, and in the middle of two of pre-slit pass K4, the center distance d1 of pass is 16.1mm;
The bottom land height a2 of described slitting pass K3 is 14.5mm, angle b2 carved by roll is 50.5 ° ~ 51 °, carving top arc radius c2 is 0.6 ~ 0.9mm, the bottom radius r2 of slitting pass K3 is 7 ~ 7.1mm, in the middle of two of slitting pass K3, the center distance d2 of passes is that to carve top spacing d3 be 0.8 ~ 1.1mm for 16.2mm, slitting pass K3;
Described oval groove K2 bottom land height a3 is 8.5mm, and the bottom land height a4 of described last groove K1 is 11.2mm.
Strictly control the supplied materials size of pre-slit pass K4, be also provided with box fixed width passage K5 before pre-slit pass K4, the wide aperture width of K5 is 56.2 ~ 56.8mm.
Rolled piece is often through the passage of a sub-band cutting wedge, and its left and right two parts will be subject to the tension on width.When this tension reaches and is enough to meet above-mentioned formula condition, just inevitably there is camber phenomenon.In order to the guidance difficulties that rolled piece camber after overcoming cutting causes, best scheme be exactly rolled piece after the processing of cutting passage, keep certain thickness connecting band, make rolled piece keep longitudinally one, then cut it with slitting wheel.Through a large amount of laboratory experiments and commerical test, the cutting method that can meet the best of above-mentioned formula is at present the combination adopting slitting pass and wheeled Cutting guide.Arrange Cutting guide, guarantee to work continually and steadily in the production process of 13.5m/s high speed, being cut by rolled piece is 4 lines.Described Cutting guide is made up of assembly, cutting guide roll, cutting blade, and slitting wheel and cutting blade are arranged on assembly, when installing and using, Cutting guide position and rolling line slitting pass align, after rolled piece goes out slitting pass, import, by cutting cut through cutting guide roll.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred embodiment should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. a splitting rolling pass, comprise pre-slit pass K4, slitting pass K3, oval groove K2 and last groove K1, it is characterized in that, the bottom land height (a1) of described pre-slit pass K4 is 17.64mm, angle (b1) carved by roll is 88.5 ° ~ 89 °, carving tip circle arc (c1) radius is 1.45 ~ 1.5mm, the bottom land height (a2) of described slitting pass K3 is 14.5mm, angle (b2) carved by roll is 50.5 ° ~ 51 °, carving top arc radius (c2) is 0.6 ~ 0.9mm, described oval groove K2 bottom land height (a3) is 8.5mm, the bottom land height (a4) of described last groove K1 is 11.2mm.
2. splitting rolling pass according to claim 1, is characterized in that, the overall width (L) of described pre-slit pass K4 is 63.4 ~ 64mm.
3. splitting rolling pass according to claim 2, is characterized in that, the bottom radius (r1) of described pre-slit pass K4 is the bottom radius (r2) of 6.9 ~ 7mm, slitting pass K3 is 7 ~ 7.1mm.
4. splitting rolling pass according to claim 3, it is characterized in that, in the middle of two of described pre-slit pass K4, the center distance (d1) of pass is the center distance (d2) of two middle passes of 16.1mm, slitting pass K3 is 16.2mm.
5. splitting rolling pass according to claim 4, is characterized in that, it is 0.8 ~ 1.1mm that described slitting pass K3 carves top spacing (d3).
6. splitting rolling pass according to claim 5, is characterized in that, is also provided with box fixed width passage K5 before described pre-slit pass K4, and the wide aperture width of K5 is 56.2 ~ 56.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510534512.0A CN105080972A (en) | 2015-08-27 | 2015-08-27 | Slit-rolling groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510534512.0A CN105080972A (en) | 2015-08-27 | 2015-08-27 | Slit-rolling groove |
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| Publication Number | Publication Date |
|---|---|
| CN105080972A true CN105080972A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510534512.0A Pending CN105080972A (en) | 2015-08-27 | 2015-08-27 | Slit-rolling groove |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421827A (en) * | 2018-04-07 | 2018-08-21 | 新疆八钢铁股份有限公司 | A kind of splitting rolling pass |
| CN110743910A (en) * | 2019-10-25 | 2020-02-04 | 四川德胜集团钒钛有限公司 | Five-segmentation pass system of phi 12mm deformed steel bar |
| CN112139240A (en) * | 2020-08-11 | 2020-12-29 | 柳州钢铁股份有限公司 | Production method for reducing performance line difference of reinforcing steel bar |
| CN112404131A (en) * | 2020-10-30 | 2021-02-26 | 张家港宏昌钢板有限公司 | Method for controlling strip uniformity of cutting pass of deformed steel bar |
-
2015
- 2015-08-27 CN CN201510534512.0A patent/CN105080972A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 唐丽娟: "带肋钢筋四切分轧制孔型系统分析", 《包钢科技》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108421827A (en) * | 2018-04-07 | 2018-08-21 | 新疆八钢铁股份有限公司 | A kind of splitting rolling pass |
| CN110743910A (en) * | 2019-10-25 | 2020-02-04 | 四川德胜集团钒钛有限公司 | Five-segmentation pass system of phi 12mm deformed steel bar |
| CN112139240A (en) * | 2020-08-11 | 2020-12-29 | 柳州钢铁股份有限公司 | Production method for reducing performance line difference of reinforcing steel bar |
| CN112404131A (en) * | 2020-10-30 | 2021-02-26 | 张家港宏昌钢板有限公司 | Method for controlling strip uniformity of cutting pass of deformed steel bar |
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Application publication date: 20151125 |