CN101168166A - Improved technique for morgan phi 7mm hole type system - Google Patents
Improved technique for morgan phi 7mm hole type system Download PDFInfo
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- CN101168166A CN101168166A CNA2007101523552A CN200710152355A CN101168166A CN 101168166 A CN101168166 A CN 101168166A CN A2007101523552 A CNA2007101523552 A CN A2007101523552A CN 200710152355 A CN200710152355 A CN 200710152355A CN 101168166 A CN101168166 A CN 101168166A
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Abstract
The invention relates to an advanced craft of the Morgan phi 7mm pass schedule, which belongs to metal wire rolling technology. The invention comprises 24 rolling mills with Morgan pass schedule, wherein the advanced craft comprises two increased finishing mills of a first finishing mill and a second finishing mill which are increased between the sixteenth and the seventeenth rolling mills assembled with the Morgan pass schedule, the pass schedule allocations of the thirteenth to the sixteenth rolling mills are progressively adjusted to oval N1, round P1, oval Q2 and round R2, the pass schedule allocations of the first and second finishing mill are respectively oval S3 and round T4. The advanced craft can effectively eliminate the accidents that the size of the process pass schedule and that of the article wire are in mismatch condition before fine rolling in the conventional Morgan pass schedule, and rolled piece drift, steel accumulation, roll-box burning, frequent striking of side loop to heads and the like which take place between the process of fine rolling pre-processing and fine rolling handling. The rolling speed can be effectively stabilized and improved, the metal wire productive rate can be improved, and the potential safety hazard of the production site can be eliminated.
Description
Technical field
The invention belongs to the metal wire rod rolling technical field, be specifically related to a kind of improvement technology that is equipped with the wire rod production line of morgan phi 7 mm hole type system.
Background technology
In the wire rod Rolling Production, from the metal stock of the continuous rolling of blast furnace or similar devices generally according to roughing, in roll, the manufacturing procedure of pre-finish rolling and finish rolling carries out, it is rolling, and general what adopt is root (Morgan) the pass technology of rubbing with pass schedule.Wire rod production line that U.S. J. P. Morgan ﹠ Co. provides and pass technology are the complete production lines of comparative maturity, and the pass preparation of each specification that it provides can take into account the size range of considering Ф 5.5-20mm.
As shown in Figure 1, the wire rod production line and the pass schedule of the Rolling Production Ф 7mm of Jiangsu Sha Gang group company metal wire rod are the complete pass schedule of the root that rubs, the outside of heating furnace 1 is disposed with 24 milling trains 6, wherein first to the 6th milling train is that roughing mill, the 7th to the 12 milling train are middle milling train, the 13 to the 16 milling train is pre-finishing mill, and the 17 to the 24 milling train is finishing mill.Roughing mill section 2 and 3 of middle milling train sections are provided with the 1# flying shear, middle milling train section 3 and 4 of pre-finishing mill sections are provided with 2 # flying shear 8,5 of pre-finishing mill section 4 and finishing mill sections are provided with 3# flying shear 11, between 3# flying shear and the 17 finishing mill, also be provided with the 2# side kink 10 of adjusting pre-finish rolling and finish rolling parts tension force simultaneously, to realize tension free rolling.As Fig. 3, the configuration of the pass of pre-finishing mill and finishing mill is respectively in 24 milling trains: the 13 pre-finishing mill is ellipse N, and the 14 pre-finishing mill is circle P, and the 15 pre-finishing mill is ellipse Q, and the 16 pre-finishing mill 9 is circle R; Concrete pass parameter is: the B13=36.59mm of the 13 milling train oval groove, H13=16.6mm; The R14=10.7mm of the 14 milling train circular hole; The B15=28.64mm of the 15 milling train oval groove, H15=13.1mm; The R16=8.45mm of the 16 milling train circular hole.The 17 to the 24 finishing mill is followed successively by: ellipse S, circle T, ellipse U, circle X3, ellipse Y3, circle X, ellipse Y and finished product.Owing to adapt to the needs of rolling size range, first to the 16 milling train of this root hole type system that rubs is the pass configuration of root Ф 5.5mm pass of rubbing, and according to the production engineering specifications of producing Ф 7mm wire rod, pre-finishing mill 9 i.e. the 16 milling train exit bar size should be controlled at about Ф 18mm, when adopting eight finishing mills, the highest mill speed of design is 93m/s.But in the process that actual tissue is produced, development speed can not reach more than the 90m/s all the time, its main cause be if the speed of rolling more than 90m/s, the linear speed of the outlet of the 16 milling train should reach or near 15m/s so, and the pass design size that existing pre-finishing mill 9 is the 16 milling train is less than normal, be that bar size is less, therefore rolled piece is behind process 3# flying shear crop, the head of rolled piece produces drift because of excessive velocities, cause 2# side kink of frequently raming, have a strong impact on rhythm of production, this production line daily output has only about 2000 tons.
Summary of the invention
In view of this, main purpose of the present invention is, in the improvement technology that keeps providing under the constant substantially prerequisite of production line a kind of morgan phi 7 mm hole type system, solve because the pass schedule size of finish rolling first being processed operation and the size of finished product wire rod are not exclusively mated, and pre-finish rolling dispose the back, enter the rolled piece drift, the head that occur before finish rolling processing is handled and sting steel, heap steel, burning roller case, the first-class phenomenon of the failure of the frequent impact machine of side kink, stable rolling also promotes mill speed.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of improvement technology of morgan phi 7 mm hole type system, comprise 24 milling trains that are equipped with the root hole type system that rubs, it is characterized in that described improvement technology is included in to change between the 16 of being furnished with the root hole type system that rubs and the 17 milling train sets up first finishing mill and two finishing mills of second finishing mill, and the 13 be adjusted into successively to the configuration of the pass schedule of the 16 milling train: ellipse N1, circle P1, ellipse Q2 and circle R2, the pass configuration of first finishing mill and second finishing mill is respectively ellipse S3 and circle T4.
This improvement technology comprises that the rolled piece bar size with the exit of the 16 milling train is adjusted into Ф 21mm, and the egress line speed in this exit is 11.6m/s.
This diverted via in 26 milling trains of technology, described first to the 6th milling train is the roughing mill section, the the 7th to the 12 milling train is middle milling train section, and the 13 to the 16 milling train is the pre-finishing mill section, and first, second finishing mill and the 17 to the 24 milling train are the finishing mill section.
Be disposed with 3# flying shear and 2# side kink between described the 16 milling train and the 17 milling train, 2# side kink is between 3# flying shear and the 17 milling train, and described first and second finishing mills are between 2# side kink and the 17 milling train.
Described the 13 the pass schedule concrete configuration to the 16 milling train is followed successively by: the B13=42.1mm of the 13 milling train oval groove, H13=19.8mm; The R14=11.9mm of the 14 milling train circular hole; The B15=34.39mm of the 15 milling train oval groove, H15=17.1mm; The R16=10.4mm of the 16 milling train circular hole.
The pass schedule concrete configuration parameter of described first finishing mill and second finishing mill is respectively: the oval groove B=29.06mm of first finishing mill, H=13.71mm; The R=8.57mm of the circular hole of second finishing mill.
By improvement technology to this morgan phi 7 mm hole type system, adopted 26 milling trains to form whole wire rod production system down, the pass configuration of pre-finishing mill and finishing mill is respectively: the 13 pre-finishing mill is ellipse N1, the 14 pre-finishing mill is circle P1, the 15 pre-finishing mill is ellipse Q2, and the 16 pre-finishing mill is circle R2; The pass configuration of first and second finishing mills that increase is respectively: ellipse S3 and circle T4.The 17 the permeability system configuration to the 24 finishing mill do not change, and is followed successively by: ellipse S, circle T, ellipse U, circle X3, ellipse Y3, circle X, ellipse Y and finished product.By increase by the first and second two finishing mills at the finishing mill leading portion, and to the pass schedule of the 13 to the 16 pre-finishing mill configuration is adjusted, increased the bar size of the 16 pre-finishing mill outlet, also reduced simultaneously the outlet bar rolling speed of the 16 finishing mill, make behind the rolled piece crop, disobey and drift about, eliminated the 2# side kink fault of frequently raming, two finishing mills that increase can guarantee that also workpiece front end stings steel and rolling stable, for condition has been created in the lifting of mill speed and the raising of output.
Beneficial effect of the present invention is, the improvement technology of this morgan phi 7 mm hole type system can effectively be eliminated in original morgan phi 7 mm hole type system, the pass schedule size of finish rolling first being processed operation and the size of finished product wire rod are not exclusively mated, and pre-finish rolling dispose the back, enter the generation that the rolled piece drift, heap steel, burning roller case, the side kink that occur before finish rolling processing is handled frequently clash into phenomena of the failure such as chieftain, can stablize and promote mill speed effectively, improve metal wire rod production efficiency, and eliminate the potential safety hazard of production scene.
Description of drawings
The invention will be further elaborated below in conjunction with drawings and Examples.
Fig. 1 improves preceding wire rod rolling production system figure for morgan phi 7 mm hole type system;
Fig. 2 is the wire rod rolling production system figure of morgan phi 7 mm hole type system after improving;
Fig. 3 improves the root hole type that the rubs system layout of preceding pre-finishing mill group for morgan phi 7 mm hole type system;
Fig. 4 is the root hole type that the rubs system layout of the pre-finishing mill group of morgan phi 7 mm hole type system after improving;
Fig. 5 is the root hole type that the rubs system layout of finishing mill A and finishing mill B.
The specific embodiment
As Fig. 2 and Fig. 4, in the improvement technology of this morgan phi 7 mm hole type system, by setting up two mm finishing mill unit
The wire rod production line of six milling trains of Cheng Ershi, each milling train sets gradually along heating furnace 1, wherein first to the 6th milling train is roughing mill, forming 2, the seven to the 12 milling trains of roughing section is middle milling train, and the section of rolling 3 in the composition, the 13 to the 16 milling train 9 is pre-finishing mill, forming pre-finish rolling section 4, the first finishing mills 12, second finishing mill 13 and the 17 to the 24 milling train is finishing mill, forms finish rolling section 5.Roughing section 2 and in be provided with 1# flying shear 7 between the section of rolling 3, in be provided with 2# flying shear 8 between the section of rolling 3 and the pre-finish rolling section 4, be provided with 3# flying shear 11 and 2# side kink 10 between pre-finish rolling section 4 and the finish rolling section 5.The 13 the pass schedule configuration to the 16 milling train is followed successively by: ellipse N1, circle P1, ellipse Q2 and circle R2.The pass schedule of first finishing mill is configured to ellipse S3, and the pass schedule of second finishing mill is configured to circle T4.Concrete pass schedule configuration parameter is: the B13=42.1mm of the 13 milling train oval groove, H13=19.8mm; The R14=11.9mm of the 14 milling train circular hole; The B15=34.39mm of the 15 milling train oval groove, H15=17.1mm; The R16=10.4mm of the 16 milling train circular hole.The oval groove B=29.06mm of first finishing mill, H=13.71mm; The R=8.57mm of the circular hole of second finishing mill, the egress line speed of adjusting the 16 milling train when producing is 11.6m/s.
The improvement technology of this morgan phi 7 mm hole type system can solve original morgan phi 7 mm hole type system effectively because pass schedule and processing dimension do not match and bring aforesaid a series of phenomenon of the failure, stable and promoted mill speed, increase wire production efficient, and eliminated the potential safety hazard of production scene.Keeping to guarantee that the daily output of metal wire rod finished product on average improves about 300 tons under the constant emotionally shape of production line.
Claims (6)
1. the improvement technology of a morgan phi 7 mm hole type system, comprise 24 milling trains that are equipped with the root hole type system that rubs, it is characterized in that described improvement technology is included in to change between the 16 of being furnished with the root hole type system that rubs and the 17 milling train sets up first finishing mill and two finishing mills of second finishing mill, and the 13 be adjusted into successively to the configuration of the pass schedule of the 16 milling train: ellipse N1, circle P1, ellipse Q2 and circle R2, the pass configuration of first finishing mill and second finishing mill is respectively ellipse S3 and circle T4.
2. the improvement technology of morgan phi 7 mm hole type system according to claim 1 is characterized in that this improvement technology comprises that the rolled piece bar size with the exit of the 16 milling train is adjusted into Ф 21mm, and the egress line speed in this exit is 11.6m/s.
3. the improvement technology of morgan phi 7 mm hole type system according to claim 1, it is characterized in that in these 26 milling trains that diverted via technology, described first to the 6th milling train is the roughing mill section, the the 7th to the 12 milling train is middle milling train section, the 13 to the 16 milling train is the pre-finishing mill section, and first, second finishing mill and the 17 to the 24 milling train are the finishing mill section.
4. the improvement technology of morgan phi 7 mm hole type system according to claim 1, it is characterized in that being disposed with 3# flying shear and 2# side kink between described the 16 milling train and the 17 milling train, 2# side kink is between 3# flying shear and the 17 milling train, and described first and second finishing mills are between 2# side kink and the 17 milling train.
5. the improvement technology of morgan phi 7 mm hole type system according to claim 1 is characterized in that described the 13 the pass schedule concrete configuration to the 16 milling train is followed successively by: the B13=42.1mm of the 13 milling train oval groove, H13=19.8mm; The R14=11.9mm of the 14 milling train circular hole; The B15=34.39mm of the 15 milling train oval groove, H15=17.1mm; The R16=10.4mm of the 16 milling train circular hole.
6. the improvement technology of morgan phi 7 mm hole type system according to claim 1 is characterized in that the pass schedule concrete configuration parameter of described first finishing mill and second finishing mill is respectively: the oval groove B=29.06mm of first finishing mill, H=13.71mm; The R=8.57mm of the circular hole of second finishing mill.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101523552A CN100537066C (en) | 2007-09-28 | 2007-09-28 | Improved technique for morgan phi 7mm hole type system |
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| CNB2007101523552A CN100537066C (en) | 2007-09-28 | 2007-09-28 | Improved technique for morgan phi 7mm hole type system |
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| CN101168166A true CN101168166A (en) | 2008-04-30 |
| CN100537066C CN100537066C (en) | 2009-09-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350106A (en) * | 2013-07-09 | 2013-10-16 | 富通集团有限公司 | Copper rod hot rolling system and copper rod production method |
| CN104148380A (en) * | 2014-08-25 | 2014-11-19 | 武钢集团昆明钢铁股份有限公司 | Method for rolling rods with 150 square blanks and 165 square blanks through both rough rolling and intermediate rolling |
| CN111069281A (en) * | 2019-12-31 | 2020-04-28 | 新疆八一钢铁股份有限公司 | Method for controlling out-of-roundness dimension precision of short stress path rolling mill |
| CN113857238A (en) * | 2021-08-13 | 2021-12-31 | 日照钢铁控股集团有限公司 | 12 mm-specification wire rod rolling method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2066475C (en) * | 1991-05-06 | 1997-06-03 | Terence M. Shore | Method and apparatus for continuously hot rolling of ferrous long products |
| CN1132706C (en) * | 2000-10-11 | 2003-12-31 | 李慧峰 | Finish rolling process in wire finish-rolling mill |
-
2007
- 2007-09-28 CN CNB2007101523552A patent/CN100537066C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350106A (en) * | 2013-07-09 | 2013-10-16 | 富通集团有限公司 | Copper rod hot rolling system and copper rod production method |
| CN104148380A (en) * | 2014-08-25 | 2014-11-19 | 武钢集团昆明钢铁股份有限公司 | Method for rolling rods with 150 square blanks and 165 square blanks through both rough rolling and intermediate rolling |
| CN104148380B (en) * | 2014-08-25 | 2016-01-20 | 武钢集团昆明钢铁股份有限公司 | A kind of thick with 150 and 165 square billets in roll the method for shared rolled bar material |
| CN111069281A (en) * | 2019-12-31 | 2020-04-28 | 新疆八一钢铁股份有限公司 | Method for controlling out-of-roundness dimension precision of short stress path rolling mill |
| CN113857238A (en) * | 2021-08-13 | 2021-12-31 | 日照钢铁控股集团有限公司 | 12 mm-specification wire rod rolling method |
| CN113857238B (en) * | 2021-08-13 | 2023-03-31 | 日照钢铁控股集团有限公司 | Rolling method of 12 mm-specification wire rod |
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| CN100537066C (en) | 2009-09-09 |
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