CN204448815U - The inside and outside synchronous cooling device in Steel Tube Rolling top - Google Patents
The inside and outside synchronous cooling device in Steel Tube Rolling top Download PDFInfo
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- CN204448815U CN204448815U CN201520086956.8U CN201520086956U CN204448815U CN 204448815 U CN204448815 U CN 204448815U CN 201520086956 U CN201520086956 U CN 201520086956U CN 204448815 U CN204448815 U CN 204448815U
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- spray hole
- steel tube
- cooling device
- shu jie
- tube rolling
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Abstract
The inside and outside synchronous cooling device in a kind of Steel Tube Rolling top, is provided with tilting spray hole at the outer round surface of Shu Jie, and in the axis of spray hole and Shu Jie, axially bored line is 30 ° ~ 60 ° along the angle come directly towards between direction.In the operation of rolling, top constantly rotates, cooling water pipe inputs the cooling fluid cavity volume that a cooling fluid with pressure part enters top, another part then sprays from spray hole, the cooling fluid of ejection is trickled down on top, cooling down is carried out to top outer surface, make the inside and outside cooling synchronously obtaining cooling fluid of top, can ensure that the temperature of top is all the time lower than the temperature of high-temperature steel pipe, top is kept to have enough hardness relative to high-temperature steel pipe, overcome the serial hot rolling defect because of the too high initiation of top hull-skin temperature, the seamless steel pipe inner bore circularity that hot rolling goes out, cylindricity, Wall thickness uniformity stably can reach designing requirement, the service life of top improves 2 times, the consumption of top reduces 50%, produce and reduce non-cutting time, production efficiency improves.
Description
Technical field:
The utility model relates to the puncturing technique that hot rolled seamless steel tube is produced, and the Shu Jie being specifically related to bore a hole, by changing the structure of Shu Jie, promotes the life-span of top.
Background technology:
Perforation is the first road thermal deformation operation of seamless steel tube production, and perforating head is the rolling special implement contacted with steel pipe internal-surface, and the quality of its quality directly has influence on the surface quality of the endoporus of seamless steel pipe product.
The structure of existing top and Shu Jie as shown in Figure 1, it comes directly towards 1 by bullet shaped, the bundle of hollow save 2 and cooling water pipe 3 form, be fixedly connected with integral between top 1 with bundle joint 2 by screw thread, cooling water pipe 3 and the inner chamber phase communications and liaison of bundle joint 2, come directly towards 1 in the operation of rolling, contact with the pipe of 1200 DEG C, surface, top 1 is heated up violent, the cooling water pipe 3 run through by inside is cooled top 1 inwall, reduces top 1 external temperature by the mode of heat trnasfer, plays the effect cooled top 1.Come directly towards 1 external refrigeration weak effect in the hot rolling, heat transmits low, and the various of failure of top is exactly because external refrigeration is not enough.Top 1 is acutely extrude sliding motion with high-temperature steel tube endoporus when boring a hole, cooling is not enough, be easy to pressurized generation surface lose flesh, ftracture, lose the defect such as circle or circumference generation fold, thus cause high-temperature steel tube bore area very easily to produce table defect in scuffing, folding, fold etc., directly have influence on the rolling quality of seamless steel pipe product, come directly towards service life low, Rolling Production cost is difficult to control simultaneously.This is difficult to technical barrier certainly during seamless steel pipe hot-rolling is produced.
Given this, the present inventor, by concentrating on studies and testing for many years, has invented a kind of top bundle joint sub-assembly coming directly towards inside and outside synchronous cooling.It can overcome the deficiency that prior art exists very goodly, the seamless steel pipe inner bore circularity that hot rolling goes out, cylindricity, Wall thickness uniformity stably can reach designing requirement, the service life simultaneously come directly towards improves more than 2 times than prior art, and top cost declines 50%.
Utility model content:
The purpose of this utility model is to provide the inside and outside synchronous cooling device in a kind of Steel Tube Rolling top.
The technical scheme that the utility model is taked is as follows:
The inside and outside synchronous cooling device in a kind of Steel Tube Rolling top, comprise the top of bullet shaped, the Shu Jie of hollow and cooling water pipe, come directly towards be fixedly connected with by screw thread between Shu Jie integral, the inner chamber of cooling water pipe and Shu Jie interlinks, it is characterized in that: be provided with tilting spray hole at the outer round surface of Shu Jieben body, in the axis of spray hole and Shu Jie, axially bored line is 30 ° ~ 75 ° along the angle come directly towards between direction, and the diameter of spray hole is 2mm ~ 5mm.
Further, the outer round surface of the same axial length on Shu Jieben body is circumferentially provided with 2 ~ 6 tilting spray holes uniformly.
Further, the outer round surface of the same axial length on Shu Jieben body is circumferentially provided with 3 tilting spray holes uniformly.
Further, the diameter of spray hole is 3 ~ 4 millimeters.
Further, in the axis of spray hole and Shu Jie, axially bored line is 45 ° ~ 60 ° towards the angle come directly towards between direction.
Further, in the axis of spray hole and Shu Jie, axially bored line is 60 ° towards the angle come directly towards between direction.
Operation principle of the present utility model is:
In the operation of rolling, top constantly rotates, Shu Jie rotates with top, simultaneously cooling water pipe inputs a cooling fluid with pressure part and enters in the cooling fluid cavity volume of top, another part is then from the spray hole ejection Shu Jie, the cooling fluid of ejection is trickled down on top, cooling down is carried out to top outer surface, the inside and outside cooling just synchronously obtaining cooling fluid of such top, when can ensure that top contacts with high-temperature steel pipe, the temperature of self is all the time lower than the temperature of high-temperature steel pipe, top is kept to have enough hardness relative to high-temperature steel pipe, effectively overcome the serial hot rolling defect because of the too high initiation of top hull-skin temperature in prior art, in the prior art, top is both by the heat temperature raising of high-temperature steel tube base substrate, again because crushing failure at high speed intensification causes top temperature to exceed the temperature of high-temperature steel pipe, top hardness must be caused to decline, therefore top be easy to pressurized produce surface lose flesh, external diameter is out of shape, lose the defect such as circle or circumference generation fold, thus cause high-temperature steel tube bore area very easily to produce scuffing, cracking, the defects such as fold, not only directly have influence on the rolling quality of seamless steel pipe product, and directly have influence on top service life, Rolling Production cost is difficult to control.Employing the technical solution of the utility model can solve the technical barrier in seamless steel pipe hot-rolling production ideally.
Through inventor's field trial, adopt the utility model, the seamless steel pipe inner bore circularity that hot rolling goes out, cylindricity, Wall thickness uniformity stably can reach designing requirement, the service life simultaneously come directly towards improves more than 2 times than prior art, the consumption of top reduces 50% than prior art, produce and reduce non-cutting time, production efficiency improves 5%.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of prior art;
Fig. 2 is structural representation of the present utility model;
In figure: 1-comes directly towards; 2-restraints joint; 3-cooling water pipe; 11-cooling fluid cavity volume; 21-cylindrical; 22-spray hole; The axis of 23-spray hole; Axially bored line in 24-bundle joint.
Detailed description of the invention:
Detailed description of the invention of the present utility model is described in detail below in conjunction with accompanying drawing:
Embodiment 1: the inside and outside synchronous cooling device in a kind of Steel Tube Rolling top, as shown in Figure 2, comprise the top 1 of bullet shaped, the bundle joint 2 of hollow and cooling water pipe 3, be fixedly connected with integral between top 1 with bundle joint 2 by screw thread, cooling water pipe 3 interlinks with the inner chamber of bundle joint 2, cylindrical 21 surface of the same axial length on bundle joint 2 body is circumferentially provided with 3 tilting spray holes 22 uniformly, cooling water pipe 3 inputs a cooling fluid with pressure part and enters in the cooling fluid cavity volume 11 of top 1, another part then sprays from the spray hole 22 bundle joint 2, in the axis 23 of spray hole and Shu Jie, axially bored line 24 is 60 ° along the angle come directly towards between direction, the diameter of spray hole 22 is 3mm.
This embodiment of the present utility model is not limited to embodiment 1, such as, and the setting position of spray hole 22, quantity and pore size, and axis 23 angle of inclination of spray hole can be determined by test according to the effect of rolling of hot-rolled pipe.
Claims (7)
1. the inside and outside synchronous cooling device in Steel Tube Rolling top, comprise the top (1) of bullet shaped, the Shu Jie (2) of hollow and cooling water pipe (3), top (1) be fixedly connected with by screw thread between Shu Jie (2) integral, cooling water pipe (3) interlinks with the inner chamber of Shu Jie (2), it is characterized in that: be provided with tilting spray hole (22) on cylindrical (21) surface of Shu Jie (2) body, in the axis (23) of spray hole and Shu Jie, axially bored line (24) is 30 ° ~ 75 ° along the angle come directly towards between direction, the diameter of spray hole (22) is 2mm ~ 5mm.
2. the inside and outside synchronous cooling device in Steel Tube Rolling top according to claim 1, is characterized in that: cylindrical (21) surface of the same axial length on Shu Jie (2) body is circumferentially provided with 2 ~ 6 tilting spray holes (22) uniformly.
3. the inside and outside synchronous cooling device in Steel Tube Rolling top according to claim 2, is characterized in that: cylindrical (21) surface of the same axial length on Shu Jie (2) body is circumferentially provided with 3 tilting spray holes (22) uniformly.
4. Steel Tube Rolling comes directly towards inside and outside synchronous cooling device according to claim 1, it is characterized in that: the diameter of spray hole (22) is 3 ~ 4 millimeters.
5. Steel Tube Rolling comes directly towards inside and outside synchronous cooling device according to claim 4, it is characterized in that: the diameter of spray hole (22) is 3 millimeters.
6. the inside and outside synchronous cooling device in Steel Tube Rolling top according to claim 1, is characterized in that: in the axis (23) of spray hole and Shu Jie, axially bored line (24) is 45 ° ~ 60 ° towards the angle come directly towards between (1) direction.
7. the inside and outside synchronous cooling device in Steel Tube Rolling top according to claim 6, is characterized in that: in the axis (23) of spray hole and Shu Jie, axially bored line (24) is 60 ° towards the angle come directly towards between (1) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086956.8U CN204448815U (en) | 2015-02-08 | 2015-02-08 | The inside and outside synchronous cooling device in Steel Tube Rolling top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086956.8U CN204448815U (en) | 2015-02-08 | 2015-02-08 | The inside and outside synchronous cooling device in Steel Tube Rolling top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204448815U true CN204448815U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520086956.8U Expired - Fee Related CN204448815U (en) | 2015-02-08 | 2015-02-08 | The inside and outside synchronous cooling device in Steel Tube Rolling top |
Country Status (1)
| Country | Link |
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| CN (1) | CN204448815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001136A (en) * | 2016-05-26 | 2016-10-12 | 马鞍山市安工大工业技术研究院有限公司 | Cooling device for inner surfaces of seamless steel tubes |
-
2015
- 2015-02-08 CN CN201520086956.8U patent/CN204448815U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001136A (en) * | 2016-05-26 | 2016-10-12 | 马鞍山市安工大工业技术研究院有限公司 | Cooling device for inner surfaces of seamless steel tubes |
| CN106001136B (en) * | 2016-05-26 | 2017-11-14 | 马鞍山市安工大工业技术研究院有限公司 | A kind of cooling device for seamless steel pipe interior surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150930 Address after: Jintan Economic Development Zone, Jintan City, Jiangsu province 213200 Jin Wu Lu, Changzhou City, No. 88 Patentee after: Jiangsu Changbao Precision Steel Tube Co., Ltd. Address before: South central Jintan Economic Development Zone, Jiangsu province Changzhou city two road 213200 No. 369 Patentee before: Changzhou Changbaojingte Energy Pipe Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20210208 |