CN104942006A - Asymmetric ribbed shapes for threaded steel finished product grooves and production method thereof - Google Patents
Asymmetric ribbed shapes for threaded steel finished product grooves and production method thereof Download PDFInfo
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- CN104942006A CN104942006A CN201510355952.XA CN201510355952A CN104942006A CN 104942006 A CN104942006 A CN 104942006A CN 201510355952 A CN201510355952 A CN 201510355952A CN 104942006 A CN104942006 A CN 104942006A
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Abstract
The invention discloses asymmetric ribbed shapes for threaded steel finished product grooves. The asymmetric ribbed shapes are arranged on an upper roller and a lower roller of a rolling mill respectively and are both trapezoidal ribbed grooves, each ribbed groove comprises a big-opening groove and a small-opening groove, the inclined angle of the side face of a steel bar transverse rib of each small-opening groove and the surface of the corresponding roller is 55 degrees, the inclined angle of the side face of the steel bar transverse rib of each small-opening groove and the center line of the corresponding ribbed groove is 35 degrees, the inclined angle of the side face of a steel bar transverse rib of each big-opening groove and the surface of the corresponding roller is 50 degrees, and the inclined angle of the side face of the steel bar transverse rib of each big-opening groove and the surface of the corresponding ribbed groove is 40 degrees. According to the asymmetric ribbed shapes for the threaded steel finished product grooves, the online use time of the ribbed shapes is prolonged by 1.5-2.5 times than that of a traditional ribbed shape, the cost expiration of the rollers is significantly reduced, and after the grooves asymmetrically machined through transverse rib side angles are used, the wear-resisting time of the sides in which the angles increase becomes longer.
Description
Technical field
The field that the screw thread rib shape that the present invention relates to reinforcing bar finished product groove is produced, particularly relates to a kind of asymmetric rib shape and production method thereof of screw-thread steel finished product groove.
Background technology
Require in the screw-thread steel standard GB/T 1499.2-2007 now performed: the angle a of reinforcing bar cross rib side and rebar surface must not be less than 45 °.Rolling production enterprise is for guaranteeing that cross rib side angle meets standard, and traditional control method uses both sides side angle to the rib shape groove being called 50 °.
In actual production, finished product groove (particularly large gauge) affects because reinforcing bar takes off groove.The side side angle rapid wear first going out de-groove can be caused, cause the side angle of cross rib both sides inconsistent and the side of serious wear is very easily less than 45 °; For this reason, manufacturing enterprise has to strictly to control finished product groove online service time.Therefore groove can be caused too short for online service time, and roll utilization rate is not enough, have impact on economic benefit.
Summary of the invention
For above-mentioned Problems existing, the object of the invention is to provide a kind of and improves finished product groove rib shape, improves the wear resistance of groove side angle that side easy to wear, extends the asymmetric rib shape of the screw-thread steel finished product groove of groove online service time.
In order to achieve the above object, the technical solution used in the present invention is as follows: a kind of asymmetric rib shape of screw-thread steel finished product groove, described asymmetric rib shape is arranged on the upper of milling train, under roll on Kun, described asymmetric rib shape is trapezoidal rib groove, described rib groove comprises large mouth groove and osculum groove, the reinforcing bar cross rib side of described osculum groove and the angle of roller surface are 55 °, the reinforcing bar cross rib side of described osculum groove and the angle of rib groove center line are 35 °, reinforcing bar cross rib side and the roller surface angle of described large mouth groove are 50 °, the reinforcing bar cross rib side of described large mouth groove and the angle of rib groove center line are 40 °.
The side angle angle of the cross rib of side easy to wear in rib groove mainly when the rib groove at processed finished products roll, is strengthened separately 10 ° by the present invention, forms the asymmetrical shape that both sides angle is inconsistent; And in use, all the time angle larger side is used for the outlet side of finished product groove; This side side angle guaranteeing rib shape in use, even if there are wearing and tearing, also there will not be side angle lower than the phenomenon of opposite side.
The topping roll of milling train of the present invention is in rotating counterclockwise, and described osculum groove is arranged on the side on the clockwise direction of large mouth groove.
The bottom roll of milling train of the present invention is in rotating clockwise, and described osculum groove is arranged on the side in large mouth groove counter clockwise direction.
The production method of the asymmetric rib shape of screw-thread steel finished product groove of the present invention, its detailed production method is as follows:
1) roll surface circumferentially of screw-thread steel finished product groove pass tank car to the outside of the rib groove on upper and lower roll is adopted to carry out preprocessing;
2) reconditioning is carried out to common rib shape process tool, select wherein side, the angle of inclination of its side is worn into 35 °, form asymmetric ridge knife tool;
3) optional step 2) in the rib groove of asymmetric ridge knife tool to upper and lower roll that obtain carry out Milling Machining respectively;
4) Roller Machining good after, demarcate top and bottom rolls, and assemble roll respectively by diverse location, the osculum groove of installation process middle rib groove is arranged on the outlet side of milling train;
5) after installation, by the rotation Rolling Production spiral of upper and lower roll.
In the operating process of step 3) of the present invention, need topping roll and the bottom roll of demarcating roll, both are processed respectively.
In the operating process of step 3) of the present invention, the large mouth groove on topping roll and bottom roll in rib groove is contrary with the Working position of osculum groove.
The outlet side of milling train of the present invention is the exit side of the final products of milling train.
In the process of preprocessing of the present invention, need to polish to the surface of upper and lower roll, polish operation on the contact position of roll surface and rib groove simultaneously.
The invention has the advantages that: the both sides side angle angle of the reinforcing bar cross rib of production of the present invention is all greater than 45 °, ensure that the both sides side angle of reinforcing bar all meets standard-required, and the both sides side angle degree of wear is basically identical.Simultaneously rib groove more traditional rib shape online service time to extend 1.5 ~ 2.5 times, reduce roll cost expiration obvious; After using the groove of the asymmetric processing of cross rib side angle, that side wear time that angle increases is elongated.
Accompanying drawing explanation
Fig. 1 is the structural representation sketch of traditional rib shape;
Fig. 2 is the structural representation sketch of rib type of the present invention;
Fig. 3 is the structural representation sketch of upper, roll of the present invention;
Fig. 4 is the structure for amplifying schematic diagram of upper and lower roll of the present invention;
Wherein, A topping roll, B bottom roll.
Detailed description of the invention
Illustrate that the present invention is described in further detail with detailed description of the invention below in conjunction with accompanying drawing.
embodiment 1:a kind of asymmetric rib shape of screw-thread steel finished product groove as shown in Figure 2,3, 4, described asymmetric rib shape is arranged on the upper and lower of milling train and rolls on Kun, described asymmetric rib shape is trapezoidal rib groove, described rib groove comprises large mouth groove and osculum groove, the reinforcing bar cross rib side of described osculum groove and the angle of roller surface are 55 °, the reinforcing bar cross rib side of described osculum groove and the angle of rib groove center line are 35 °, reinforcing bar cross rib side and the roller surface angle of described large mouth groove are 50 °, and the reinforcing bar cross rib side of described large mouth groove and the angle of rib groove center line are 40 °.
The side angle angle of the cross rib of side easy to wear in rib groove mainly when the rib groove at processed finished products roll, is strengthened separately 10 ° by the present invention, forms the asymmetrical shape that both sides angle is inconsistent; And in use, all the time angle larger side is used for the outlet side of finished product groove; This side side angle guaranteeing rib shape in use, even if there are wearing and tearing, also there will not be side angle lower than the phenomenon of opposite side.
embodiment 2:the topping roll of milling train of the present invention is in rotating counterclockwise, and described osculum groove is arranged on the side on the clockwise direction of large mouth groove; The bottom roll of 8 milling trains of the present invention is in rotating clockwise, and described osculum groove is arranged on the side in large mouth groove counter clockwise direction.
embodiment 3:the production method of the asymmetric rib shape of screw-thread steel finished product groove of the present invention, its detailed production method is as follows:
1) roll surface circumferentially of screw-thread steel finished product groove pass tank car to the outside of the rib groove on upper and lower roll is adopted to carry out preprocessing;
2) reconditioning is carried out to common rib shape process tool, select wherein side, the angle of inclination of its side is worn into 35 °, form asymmetric ridge knife tool;
3) optional step 2) in the rib groove of asymmetric ridge knife tool to upper and lower roll that obtain carry out Milling Machining respectively;
4) Roller Machining good after, demarcate top and bottom rolls, and assemble roll respectively by diverse location, the osculum groove of installation process middle rib groove is arranged on the outlet side of milling train;
5) after installation, by the rotation Rolling Production spiral of upper and lower roll.
In the operating process of step 3) of the present invention, need topping roll and the bottom roll of demarcating roll, both are processed respectively.
In the operating process of step 3) of the present invention, the large mouth groove on topping roll and bottom roll in rib groove is contrary with the Working position of osculum groove.
The outlet side of milling train of the present invention is the exit side of the final products of milling train.
In the process of preprocessing of the present invention, need to polish to the surface of upper and lower roll, polish operation on the contact position of roll surface and rib groove simultaneously.
It should be noted that, above-mentioned is only preferred embodiment of the present invention, is not used for limiting protection scope of the present invention, and equivalents done on the basis of above-described embodiment all belongs to protection scope of the present invention.
Claims (8)
1. the asymmetric rib shape of a screw-thread steel finished product groove, described asymmetric rib shape is arranged on the upper and lower of milling train and rolls on Kun, it is characterized in that, described asymmetric rib shape is trapezoidal rib groove, described rib groove comprises large mouth groove and osculum groove, the reinforcing bar cross rib side of described osculum groove and the angle of roller surface are 55 °, the reinforcing bar cross rib side of described osculum groove and the angle of rib groove center line are 35 °, reinforcing bar cross rib side and the roller surface angle of described large mouth groove are 50 °, and the reinforcing bar cross rib side of described large mouth groove and the angle of rib groove center line are 40 °.
2. the asymmetric rib shape of screw-thread steel finished product groove according to claim 1, is characterized in that, the topping roll of described milling train is in rotating counterclockwise, and described osculum groove is arranged on the side on the clockwise direction of large mouth groove.
3. the asymmetric rib shape of screw-thread steel finished product groove according to claim 1, is characterized in that, the bottom roll of described milling train is in rotating clockwise, and described osculum groove is arranged on the side in large mouth groove counter clockwise direction.
4. a production method for the asymmetric rib shape of screw-thread steel finished product groove according to claim 1, is characterized in that, its detailed production method is as follows:
1) adopt screw-thread steel finished product groove pass tank car cutter, to the roll surface Vehicle Processing that upper and lower roll finished hole basic circle carries out circumferentially, form finished product groove;
2) reconditioning is carried out to common rib shape process tool, select wherein side, the angle of inclination of its side is worn into 35 °, form asymmetric ridge knife tool;
3) optional step 2) in the asymmetric ridge knife tool that obtains respectively Milling Machining is carried out to the rib groove in upper and lower roll finished product hole slot;
4) Roller Machining good after, demarcate top and bottom rolls, and assemble roll respectively by diverse location, the osculum groove of installation process middle rib groove is arranged on the outlet side of milling train;
5) after installation, by the rotation Rolling Production spiral of upper and lower roll.
5. the production method of screw-thread steel finished product groove dedicated asymmetric rib shape according to claim 4, is characterized in that, in the operating process of described step 3), needs topping roll and the bottom roll of demarcating roll, processes respectively both.
6. the production method of screw-thread steel finished product groove dedicated asymmetric rib shape according to claim 5, is characterized in that, in the operating process of described step 3), the large mouth groove on topping roll and bottom roll in rib groove is contrary with the Working position of osculum groove.
7. the production method of screw-thread steel finished product groove dedicated asymmetric rib shape according to claim 4, it is characterized in that, the outlet side of described milling train is the exit side of the final products of milling train.
8. the production method of screw-thread steel finished product groove dedicated asymmetric rib shape according to claim 5, it is characterized in that, in the process of described preprocessing, need to polish to the surface of upper and lower roll, polish operation on the contact position of roll surface and rib groove simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510355952.XA CN104942006A (en) | 2015-06-25 | 2015-06-25 | Asymmetric ribbed shapes for threaded steel finished product grooves and production method thereof |
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| CN201510355952.XA CN104942006A (en) | 2015-06-25 | 2015-06-25 | Asymmetric ribbed shapes for threaded steel finished product grooves and production method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798069A (en) * | 2016-03-17 | 2016-07-27 | 山东钢铁股份有限公司 | Offline transverse rib alignment detection method suitable for preparing finishing rolled thread steel |
| CN109175172A (en) * | 2018-09-06 | 2019-01-11 | 山东焱鑫矿用材料加工有限公司 | A kind of molding milling train rolling double rotational directions thread connection steel part |
| CN117564083A (en) * | 2024-01-16 | 2024-02-20 | 太原科技大学 | Magnesium alloy plate and asynchronous angle rolling process for improving anisotropy of magnesium alloy plate |
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| US3653246A (en) * | 1969-07-26 | 1972-04-04 | Ilseder Huette | Method of and means for rolling rods |
| EP0947642A2 (en) * | 1998-03-31 | 1999-10-06 | Gyeng Ok Chung | Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure of connecting deformed bar |
| CN102168473A (en) * | 2011-01-30 | 2011-08-31 | 莱芜钢铁股份有限公司 | Large-specification ribbed reinforcing steel bars and machining process thereof |
| CN103752606A (en) * | 2014-01-07 | 2014-04-30 | 山西太钢不锈钢股份有限公司 | Method for eliminating stainless steel deformed bar transverse rib cracks |
| CN204747071U (en) * | 2015-06-25 | 2015-11-11 | 江苏永钢集团有限公司 | Asymmetric rib shape of screw -thread steel finished product groove |
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2015
- 2015-06-25 CN CN201510355952.XA patent/CN104942006A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| US3653246A (en) * | 1969-07-26 | 1972-04-04 | Ilseder Huette | Method of and means for rolling rods |
| EP0947642A2 (en) * | 1998-03-31 | 1999-10-06 | Gyeng Ok Chung | Method of working connection end of deformed bar for reinforcing concrete, deformed bar worked by the method and structure of connecting deformed bar |
| CN102168473A (en) * | 2011-01-30 | 2011-08-31 | 莱芜钢铁股份有限公司 | Large-specification ribbed reinforcing steel bars and machining process thereof |
| CN103752606A (en) * | 2014-01-07 | 2014-04-30 | 山西太钢不锈钢股份有限公司 | Method for eliminating stainless steel deformed bar transverse rib cracks |
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| 张智等: "WC硬质合金复合轧辊的加工", 《轧钢》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798069A (en) * | 2016-03-17 | 2016-07-27 | 山东钢铁股份有限公司 | Offline transverse rib alignment detection method suitable for preparing finishing rolled thread steel |
| CN109175172A (en) * | 2018-09-06 | 2019-01-11 | 山东焱鑫矿用材料加工有限公司 | A kind of molding milling train rolling double rotational directions thread connection steel part |
| CN117564083A (en) * | 2024-01-16 | 2024-02-20 | 太原科技大学 | Magnesium alloy plate and asynchronous angle rolling process for improving anisotropy of magnesium alloy plate |
| CN117564083B (en) * | 2024-01-16 | 2024-04-16 | 太原科技大学 | Magnesium alloy plate and asynchronous angle rolling process for improving anisotropy of magnesium alloy plate |
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Application publication date: 20150930 |
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