CN110711782A - Extrusion roller hole pattern of high-frequency welded pipe rolling mill - Google Patents
Extrusion roller hole pattern of high-frequency welded pipe rolling mill Download PDFInfo
- Publication number
- CN110711782A CN110711782A CN201810773447.0A CN201810773447A CN110711782A CN 110711782 A CN110711782 A CN 110711782A CN 201810773447 A CN201810773447 A CN 201810773447A CN 110711782 A CN110711782 A CN 110711782A
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- extrusion
- roller
- rollers
- arc radius
- inner arc
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- 238000001125 extrusion Methods 0.000 title claims abstract description 63
- 238000005096 rolling process Methods 0.000 title abstract description 8
- 238000009785 tube rolling Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 16
- 239000010959 steel Substances 0.000 abstract description 16
- 238000003466 welding Methods 0.000 abstract description 9
- 238000002474 experimental method Methods 0.000 abstract description 3
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 240000006413 Prunus persica var. persica Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
-
- 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
- B21B27/024—Rolls for bars, rods, rounds, tubes, wire or the like
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- Physics & Mathematics (AREA)
- Geometry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention discloses a hole pattern of an extrusion roller of a high-frequency welded pipe rolling mill, which comprises a pair of left and right oppositely-arranged extrusion side rollers I and extrusion side rollers II with the same structure, and a pair of extrusion upper rollers I and extrusion upper rollers II with the same structure, which are arranged in parallel, wherein the extrusion side rollers I and the extrusion side rollers II are sleeved on side roller shafts, the extrusion upper rollers I and the extrusion upper rollers II are sleeved on an upper roller frame shaft, the hole pattern inner arc radius of the extrusion upper rollers I and the extrusion upper rollers II is R1, the hole pattern inner arc radius of the extrusion side rollers I and the extrusion side rollers II is R2, and R1 is larger than R2. The invention is characterized in that: because the inner arc radius of the upper extrusion roll pass and the inner arc radius of the side extrusion roll pass have a certain deviation, two ports at the welding position of the steel pipe are in a flat state, the inner layer and the outer layer of the steel pipe are uniformly heated, the welding quality is good, the welding position of the steel pipe is not cracked when a flattening experiment is carried out, and the quality of the steel pipe is good.
Description
Technical Field
The invention relates to the technical field of high-frequency welded pipe production equipment, in particular to a hole pattern of a squeeze roll of a high-frequency welded pipe rolling mill.
Background
The inner arc radius R1 of the hole pattern of the upper extrusion roller of the existing high-frequency welded pipe rolling mill is equal to the inner arc radius R2 of the hole pattern of the side extrusion roller, when the high-frequency welded pipe rolling mill works, the roller seam of the two upper extrusion rollers, close to the extrusion roller, of a steel pipe is in a shape of a pointed peach, the end opening of the steel pipe is in a V shape, the inner and outer heating of the steel pipe is uneven, the welding quality of the steel pipe is poor, welding is not performed sometimes, and when a flattening experiment is performed.
Disclosure of Invention
The invention aims to overcome the defects and provide a squeeze roll hole pattern of a high-frequency welded pipe rolling mill.
The technical scheme adopted by the invention for realizing the purpose is as follows: the utility model provides a high frequency welded tube rolling mill squeeze roll pass, includes that a pair of structure is the same about to the extrusion side roller of dress, extrude side roller two and a pair of structure is the same top roller one of the extrusion of installing side by side, extrude side roller one, extrude side roller suit on the side roller axle, the extrusion is gone up roller one, is extruded top roller suit and is gone up the roller frame epaxially, the pass inner arc radius of roller one and extrusion top roller two is R1 in the extrusion, the pass inner arc radius of extrusion side roller one and extrusion side roller two is R2, R1 is greater than R2.
The R1 is equal to 1.2 times R2.
The first extrusion side roller and the second extrusion side roller are arranged on the side roller shaft through keys, and the first extrusion upper roller and the second extrusion upper roller are arranged on the upper roller frame shaft through bearings.
The invention is characterized in that: because the inner arc radius of the upper extrusion roll pass and the inner arc radius of the side extrusion roll pass have a certain deviation, two ports at the welding position of the steel pipe are in a flat state, the inner layer and the outer layer of the steel pipe are uniformly heated, the welding quality is good, the welding position of the steel pipe is not cracked when a flattening experiment is carried out, and the quality of the steel pipe is good.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Wherein: 1. the extrusion side roller I2, the extrusion side roller II 3, the side roller shaft 4, the extrusion upper roller I5, the extrusion upper roller II 6 and the upper roller frame shaft.
Detailed Description
As shown in figure 1, the invention is a roll pass of a high-frequency welded pipe rolling mill, which comprises a pair of left and right oppositely-arranged extrusion side rolls I1 and II 2 with the same structure, and a pair of upper extrusion rolls I4 and II 5 with the same structure, which are arranged in parallel, wherein the extrusion side rolls I1 and II 2 are arranged on a side roll shaft 3 through keys, the upper extrusion rolls I4 and II 5 are arranged on an upper roll frame shaft 6 through bearings, the inner arc radius of the pass of the upper extrusion roll I4 and the upper extrusion roll II 5 is R1, the inner arc radius of the pass of the extrusion side rolls I1 and II 2 is R2, R1 is larger than R2, preferably, R1 is equal to 1.2 times of R2, at the moment, the inner arc radius of the extrusion pass of the upper extrusion roll R1 and the inner arc radius of the extrusion side roll pass R2 have a certain deviation amount, so that the mouth at the welded position of a steel pipe is in a flat state, the inner and outer end layers of the steel pipe are heated, the welding quality is good, the welded joint does not crack when the steel pipe is subjected to a flattening test, and the quality of the steel pipe is good.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (3)
1. The utility model provides a high frequency welded tube rolling mill squeeze roll pass which characterized in that: including the same side of a pair of structure extrusion side roller (1), extrusion side roller two (2) and a pair of structure the same extrusion of installing side by side of roller one (4), two (5) in the extrusion, the suit is on side roller axle (3) in extrusion side roller one (1), extrusion side roller two (2), the suit is on last roller frame axle (6) in the extrusion, the extrusion is gone up roller one (4), is extruded and is gone up the caliber inner arc radius of roller two (5) for R1 in the extrusion, the extrusion side roller one (1) is R2 with the caliber inner arc radius of extrusion side roller two (2), R1 is greater than R2.
2. The squeeze roll pass of a high frequency tube rolling mill as set forth in claim 1, wherein: the R1 is equal to 1.2 times R2.
3. The squeeze roll pass of a high frequency tube rolling mill as set forth in claim 1 or 2, characterized in that: the extrusion side roller I (1) and the extrusion side roller II (2) are installed on the side roller shaft (3) through keys, and the extrusion upper roller I (4) and the extrusion upper roller II (5) are installed on the upper roller frame shaft (6) through bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810773447.0A CN110711782A (en) | 2018-07-14 | 2018-07-14 | Extrusion roller hole pattern of high-frequency welded pipe rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810773447.0A CN110711782A (en) | 2018-07-14 | 2018-07-14 | Extrusion roller hole pattern of high-frequency welded pipe rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110711782A true CN110711782A (en) | 2020-01-21 |
Family
ID=69208654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810773447.0A Pending CN110711782A (en) | 2018-07-14 | 2018-07-14 | Extrusion roller hole pattern of high-frequency welded pipe rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110711782A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0542376A (en) * | 1991-08-07 | 1993-02-23 | Sumitomo Metal Ind Ltd | Manufacture of electric resistance welded steel tube |
| JP2004167592A (en) * | 2002-11-22 | 2004-06-17 | Nisshin Steel Co Ltd | Manufacturing method of hot-dipped steel tube |
| CN1602231A (en) * | 2001-12-06 | 2005-03-30 | Sms米尔股份有限公司 | Method and device for changing the rolls of a tube welding stand |
| CN201346558Y (en) * | 2009-01-21 | 2009-11-18 | 张家口海特钢管有限责任公司 | Novel roller of welding oil casing pipe |
| CN201427227Y (en) * | 2009-06-17 | 2010-03-24 | 泰安科诺型钢股份有限公司 | Novel tube-welding extrusion machine |
| CN202570891U (en) * | 2012-05-22 | 2012-12-05 | 天津市静海县宝来工贸有限公司 | Four-roller squeezing roller set for high-frequency longitudinal welded pipe |
| CN103464544A (en) * | 2013-09-17 | 2013-12-25 | 浙江金洲管道工业有限公司 | Constant-pressure self-locking adjustment device for tube welding squeezing rollers |
| CN203599701U (en) * | 2013-10-09 | 2014-05-21 | 宝钢集团新疆八一钢铁有限公司 | Improved straight seam pipe welding unit extrusion roller device |
| CN208495384U (en) * | 2018-07-14 | 2019-02-15 | 大连冶金工具厂有限公司 | A kind of Roll for HF welded Steel Pipe Mill compression roller pass |
-
2018
- 2018-07-14 CN CN201810773447.0A patent/CN110711782A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0542376A (en) * | 1991-08-07 | 1993-02-23 | Sumitomo Metal Ind Ltd | Manufacture of electric resistance welded steel tube |
| CN1602231A (en) * | 2001-12-06 | 2005-03-30 | Sms米尔股份有限公司 | Method and device for changing the rolls of a tube welding stand |
| JP2004167592A (en) * | 2002-11-22 | 2004-06-17 | Nisshin Steel Co Ltd | Manufacturing method of hot-dipped steel tube |
| CN201346558Y (en) * | 2009-01-21 | 2009-11-18 | 张家口海特钢管有限责任公司 | Novel roller of welding oil casing pipe |
| CN201427227Y (en) * | 2009-06-17 | 2010-03-24 | 泰安科诺型钢股份有限公司 | Novel tube-welding extrusion machine |
| CN202570891U (en) * | 2012-05-22 | 2012-12-05 | 天津市静海县宝来工贸有限公司 | Four-roller squeezing roller set for high-frequency longitudinal welded pipe |
| CN103464544A (en) * | 2013-09-17 | 2013-12-25 | 浙江金洲管道工业有限公司 | Constant-pressure self-locking adjustment device for tube welding squeezing rollers |
| CN203599701U (en) * | 2013-10-09 | 2014-05-21 | 宝钢集团新疆八一钢铁有限公司 | Improved straight seam pipe welding unit extrusion roller device |
| CN208495384U (en) * | 2018-07-14 | 2019-02-15 | 大连冶金工具厂有限公司 | A kind of Roll for HF welded Steel Pipe Mill compression roller pass |
Non-Patent Citations (3)
| Title |
|---|
| 介升旗;吴鹏飞;陈浩明;: "焊接挤压辊造成管体表面缺欠的处理", 焊管, no. 03, 28 March 2017 (2017-03-28), pages 53 - 56 * |
| 朱斌燕;于宾;路广平;任国庆;翁文;: "高频焊管焊接挤压辊的调整", 焊管, no. 10, 28 October 2011 (2011-10-28), pages 40 - 43 * |
| 胡日荣;王金飞;李殿杰;韩宝云;张启富;: "直缘成型高频焊管机组轧辊孔型设计", 焊管, no. 04, 28 April 2017 (2017-04-28), pages 33 - 34 * |
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