CN205732285U - A kind of eight segmentation tube rolling roll shapes - Google Patents
A kind of eight segmentation tube rolling roll shapes Download PDFInfo
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- CN205732285U CN205732285U CN201620411408.2U CN201620411408U CN205732285U CN 205732285 U CN205732285 U CN 205732285U CN 201620411408 U CN201620411408 U CN 201620411408U CN 205732285 U CN205732285 U CN 205732285U
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Abstract
This utility model includes non-ferrous metal, ferrous metal calendering formation oblique roll process, is mainly concerned with rolling deformation vestibule roll shape field, a kind of eight segmentation tube rolling roll shapes and preparation method thereof.A kind of eight segmentation tube rolling roll shapes, the center of tube rolling roll shape is provided with axis hole, tube rolling roll shape external diameter 1000 1200mm, body of roll overall length 1000mm, the body of roll is broadly divided into approach cone and outlet cone, approach cone includes four roll surface angles, and outlet cone includes four roll surface angles, and the roll surface of roll is always divided into eight intervals.Improve product quality during processing and manufacturing, improved and optimizated the mobility of metal during pyroplastic deformation, enhanced the stability of the operation of rolling；And hollow forging of dishing out smoothly during being guaranteed in throwing pipe, the roll design of roll serves vital effect to physical dimension and the quality of hollow forging molding.
Description
Technical field
This utility model includes non-ferrous metal, ferrous metal calendering formation oblique roll process, is mainly concerned with rolling deformation vestibule roll shape field, a kind of eight segmentation tube rolling roll shapes.
Background technology
For meeting product quality, it is suitable for the demand of market development, constantly develops Limit specifications product, open up new market segment, adapt to the calendering formation of non-ferrous metal, devise eight segmentation roll profiles.This roll shape be designed to meet the production of large size, thin walled specification product, product D/S can reach more than 40, range of product size Φ 180 ~ 377mm, wall thickness 7 ~ 120mm, improve the product coverage of this production line, make this technique possess the ability of series of products of the more specification of production, more material.The design of this eight segmentations tube rolling function roll shape, makes original product outside diameter schedule be increased 96 kinds of specifications by original 28 kinds, reduces integrated cost, and rolling material is strided forward to non-ferrous metal field by rolling ferrous metal.
Utility model content
For promoting the comprehensive benefit of production line, meeting the market requirement, improving the product coverage of this production line so that it is production technology possesses the specification series product produced more, reduce integrated cost, this utility model provides a kind of eight segmentation tube rolling roll shapes.
A kind of eight segmentation tube rolling roll shapes, the center of tube rolling roll shape is provided with axis hole, tube rolling roll shape external diameter 1000-1200mm, body of roll overall length 1000mm, the body of roll is broadly divided into approach cone and outlet cone, and approach cone includes four roll surface angles, and outlet cone includes four roll surface angles, the roll surface of roll is always divided into eight intervals, is followed successively by:
Approach cone I district, is used for ensureing that operation of rolling hollow billet is nipped smoothly, chamfer radius is 40mm, and roll entrance face roll surface angle is 9 °, a length of 165mm；Roll surface angle, approach cone II district is 7 °, a length of 165mm；(roll surface angle is 3.25 °, a length of 85mm in approach cone III district；Roll surface angle, wall-thickness reduction zone is 4.5 °, a length of 45mm；3.4 ° of roll surface angle, Runout area, a length of 220mm；2 ° of roll surface angle, outlet cone I district, a length of 150mm；2.25 ° of roll surface angle, outlet cone II district, a length of 100mm；4 ° of roll surface angle, outlet cone III district, a length of 70mm, chamfer radius is 15mm.
Compared with prior art, the beneficial effects of the utility model are:
Eight segmentation tube rolling roll shapes the most of the present utility model, total design principle is two parts, entrance and outlet section are for mainly rolling basic principle, eight segmentation tube rollings are by roll design on this basis, the two active section of entrance and outlet section is subdivided into four sections, causes entrance outlet section to distributed eight active sections in the design of the whole body of roll.So make hollow forging in the case of same roll line speed with roll contact tangent plane more rationally, more effectively, more abundant, improve the utilization rate of roll barrel, make roll profile more adapt to the mobility of flow of metal.
Eight segmentation tube rolling roll shapes the most of the present utility model, improve roll surface precision, add service life, solving the problem that the fault rate of former mechanism is high, Rolling failure rate is reduced to one of percentage by original 3 percent, it is ensured that the seriality of production operation simultaneously, avoid some and roll card phenomenon, ensure rolling stability in process of production, it is ensured that the rolling accuracy of product, improve production operation efficiency.
Eight segmentation tube rolling roll shapes the most of the present utility model, improve the motility of organization of production so that it is possessed rolling non-ferrous metal, the ability of ferrous metal color；Roll is the core heat instrument rolling vestibule during calendering formation, and the design application of this eight segmentations tube rolling roll shape makes technique can produce the seamless pipe series of products such as various resource equipment high alloy, drilling at the sea alloy, tubing and casing, line pipe, titanium zirconium hafnium niobium and compo pipe thereof.
Eight segmentation tube rolling roll shapes the most of the present utility model, improve product quality during processing and manufacturing, have improved and optimizated the mobility of metal during pyroplastic deformation, enhanced the stability of the operation of rolling；And hollow forging of dishing out smoothly during being guaranteed in throwing pipe, the roll design of roll serves vital effect to physical dimension and the quality of hollow forging molding.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the Temperature-time graph of relation of manufacture method of the present invention；
In figure, L1, outlet cone III district, L2, outlet cone II district, L3, outlet cone I district, L4, Runout area, L5, wall-thickness reduction zone, L6, approach cone III district, L7, approach cone II district, L8, approach cone I district；1, outlet cone, 2, approach cone.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments herein is described in detail, but the multitude of different ways that the application can be defined by the claims and cover is implemented.The accompanying drawing of the part constituting the application is used for providing further understanding of the present application, and the schematic description and description of the application is used for explaining the application, is not intended that the improper restriction to the application.
A kind of eight segmentation tube rolling roll shapes, the center of roll profile is provided with axis hole, roll external diameter 1000-1200mm, body of roll overall length 1000mm, and the body of roll is broadly divided into approach cone 2 and 1 two cone angles of outlet cone, wherein, the long 540mm of approach cone 2, the long 460mm of outlet cone 1.
Approach cone 2 is subdivided into four roll surface angles, outlet cone 1 has also segmented four roll surface angles, the roll surface of roll is always divided into eight intervals, it is sequentially provided with approach cone I district L8, approach cone II district L7, approach cone III district L6, wall-thickness reduction zone L5, Runout area L4, outlet cone I district L3, outlet cone II district L2, outlet cone III district L1.
Wherein, approach cone I district L8 devises chamfering, and chamfer radius is 40mm, ensures that operation of rolling hollow billet is nipped smoothly, and approach cone I district L8 roll surface angle is 9 °, L8 length dimension is 165mm.
Approach cone II district L7 roll surface angle is 7 °, a length of 165mm of L7；Approach cone III district L6 roll surface angle is 3.25 °, a length of 85mm of L6；L5 roll surface angle, wall-thickness reduction zone is 4.5 °, a length of 45mm of wall-thickness reduction zone L5；3.4 ° of L4 roll surface angle, Runout area, a length of 220mm of Runout area L4；2 ° of outlet cone I district L3 roll surface angle, a length of 150mm of outlet cone I district L3；2.25 ° of outlet cone II district L2 roll surface angle, a length of 100mm of outlet cone II district L2；4 ° of outlet cone III district L1 roll surface angle, outlet cone III district L1 fillet area length dimension is 70mm, and the chamfer radius of outlet cone III district L1 design simultaneously is 15mm.
The roll of pipe mill basic functional principle in the operation of rolling: nip, stable rolling, three phases of dishing out, first it is to ensure hollow billet nipping smoothly at arrival end, roll makes body nip and is rotationally advancing, and causes body to subtract wall the most laterally longitudinal extension during stable rolling.
Embodiment 1
This tube rolling roll shape is always divided into eight active sections, by Way out the angle of each active section be respectively as follows: first paragraph L1 be 4 °, second segment L2 be 2 ° of 30`, the 3rd section of L3 be 2 °, the 4th section of L4 be 3 ° of 45`, the 5th section of L5 be 4.5 °, the 6th section of L6 be 3 ° of 30`, the 7th section of L7 be 7 ° of the 8th section of L8 be 9 °, each angle serves different rolling effects to the hollow forging of rolling in the operation of rolling.From Way in the effect of every section achieve body is served by normally the nipping of hollow billet, body compression, body rotation, horizontal expansion, longitudinal extension subtract wall, Jun Bi, outer surface expanding, equal return circle, hollow forging of finally dishing out completes rolling.More reasonably making metal complete roll forming in vestibule interval through a series of rolling deformation, it is high that tube rolling roll shape of the present utility model has rolling accuracy, the most practical characteristic of rolling, is that rolling deformation ensures the requisite core of product quality.
The manufacture method of a kind of eight segmentation tube rolling roll shapes, comprises the technical steps that:
A. the steel blank of mixing is put into and electric furnace adds heat fusing；Mixing steel blank percent composition be: C:2.9-3.2, W:0.9-1.3, Mo:4.3-6.8, V:4.6-5.7, Cr:11.41-12.9, Al:0.3-0.8, Ni:1.4-1.5, Co:8.8-10.5, Nb:0.1-0.35, Ti:0.3-0.8, Ce:0.5-0.7, Zr:0.08-0.23, Si < 0.7, Mn < 1.4, S < 0.07, P < 0.03, remaining be Fe；
B.3-5h in, furnace temperature is all ramped up 1500-1595 DEG C, adds REB composite modifier, and stir, in 1-2h, furnace temperature is uniformly down to 1400-1495 DEG C, again add REB composite modifier, and stir；REB composite modifier is the mixture of RE and B, wherein, and RE≤2.0wt%, B≤0.05wt%；
C. adjust liquid steel temperature and be 1430-1480 DEG C, start centrifuge so that it is rotating speed is 800rpm-l000rpm；By in pouring molten steel to casting mold, after the complete 40-55min of pouring molten steel, close centrifuge, from casting mold, take out strand directly enter furnace annealing process；
D. annealing treating process is: the heat-treatment furnace that strand is not less than 250 DEG C with temperature is heated to 670-720 DEG C of insulation 2h-3h, then proceed to be heated to 980-1010 DEG C of insulation 5-7h, 1-3h stove is cooled to 750-815 DEG C, then proceedes to be heated to 920-970 DEG C of insulation 3-5h, 1-3h stove and is cooled to room temperature；
E. carrying out Quenching Treatment after roughing, quenching processing technology is to be heated to 1260-1280 DEG C with stove, is incubated 3-5h, then oil quenching, carrying out temper after quenching, temper technique is to be heated to 620-650 DEG C with stove, is incubated 5-7h, stove is cold, then it is again heated to 610-630 DEG C, is incubated 5-7h, air cooling, carry out polish after temper, obtain dimensional accuracy and the satisfactory roll of surface smoothness.
Embodiment 2
Tube rolling roll shape structure embodiment 1, manufacture method simultaneously, comprise the technical steps that:
A. the steel blank of mixing is put into and electric furnace adds heat fusing；The steel blank percent composition of mixing is: C:2.9, W:0.9, Mo:4.3, V:4.6, Cr:11.41, Al:0.3, Ni:1.4, Co:8.8, Nb:0.1, Ti:0.3, Ce:0.5, Zr:0.08, Si:0.7, Mn:1.4, S:0.07, P:0.03, remaining is Fe；
B.3h in, furnace temperature is all ramped up 1500 DEG C, adds REB composite modifier, and stir, in 1h, furnace temperature is uniformly down to 1400 DEG C, again add REB composite modifier, and stir；REB composite modifier is the mixture of RE and B, wherein, RE be 1.0wt%, B be 0.01wt%；
C. adjust liquid steel temperature and be 1430 DEG C DEG C, start centrifuge so that it is rotating speed is 800rpm；By in pouring molten steel to casting mold, after the complete 40min of pouring molten steel, close centrifuge, from casting mold, take out strand directly enter furnace annealing process；
D. annealing treating process is: strand is heated to 670 DEG C of insulation 2h with the heat-treatment furnace of temperature 250 DEG C, then proceedes to be heated to 980 DEG C of insulation 5h, 1h stoves and is cooled to 750 DEG C, then proceedes to be heated to 920 DEG C of insulation 3h, 1h stoves and is cooled to room temperature；
E. carrying out Quenching Treatment after roughing, quenching processing technology is to be heated to 1260 DEG C with stove, is incubated 3h, then oil quenching, carrying out temper after quenching, temper technique is to be heated to 620 DEG C with stove, is incubated 5h, stove is cold, then it is again heated to 610 DEG C, is incubated 5h, air cooling, carry out polish after temper, obtain dimensional accuracy and the satisfactory roll of surface smoothness.
Embodiment 3
Tube rolling roll shape structure embodiment 1, manufacture method simultaneously, comprise the technical steps that:
A. the steel blank of mixing is put into and electric furnace adds heat fusing；The steel blank percent composition of mixing is: C:3.2, W:1.3, Mo:6.8, V:5.7, Cr:12.9, Al:0.8, Ni:1.5, Co:10.5, Nb:0.35, Ti:0.8, Ce:0.7, Zr:0.23, Si:0.7, Mn:1.4, S:0.07, P:0.03, remaining is Fe；
B.5h in, furnace temperature is all ramped up 1595 DEG C, adds REB composite modifier, and stir, in 2h, furnace temperature is uniformly down to 1495 DEG C, again add REB composite modifier, and stir；REB composite modifier is the mixture of RE and B, wherein, RE:2.0wt%, B:0.05wt%；
C. adjusting liquid steel temperature is 1480 DEG C, starts centrifuge so that it is rotating speed is l000rpm；By in pouring molten steel to casting mold, after the complete 55min of pouring molten steel, close centrifuge, from casting mold, take out strand directly enter furnace annealing process；
D. annealing treating process is: the heat-treatment furnace that strand is not less than 250 DEG C with temperature is heated to 720 DEG C of insulation 3h, then proceedes to be heated to 1010 DEG C of insulation 7h, 3h stoves and is cooled to 815 DEG C, then proceedes to be heated to 970 DEG C of insulation 5h, 3h stoves and is cooled to room temperature；
E. carrying out Quenching Treatment after roughing, quenching processing technology is to be heated to 1280 DEG C with stove, is incubated 5h, then oil quenching, carrying out temper after quenching, temper technique is to be heated to 650 DEG C with stove, is incubated 7h, stove is cold, then it is again heated to 630 DEG C, is incubated 7h, air cooling, carry out polish after temper, obtain dimensional accuracy and the satisfactory roll of surface smoothness.
Test effect:
Roll in embodiment 1-3 and the common roll bought being taken three pieces respectively, is separately heated to 300 DEG C, 500 DEG C, 700 DEG C, the roll in embodiment 1-3 and the common roll bought are carried out hardness test, it is as shown in the table for the numerical value of test gained,
| Hardness test HRC | Common roll | Embodiment 1 roll | Embodiment 2 roll | Embodiment 3 roll |
| 300℃ | 47 | 59 | 58 | 60 |
| 500℃ | 41 | 51 | 52 | 53 |
| 700℃ | 36 | 46 | 47 | 48 |
Shown in upper table, we can significantly find out, the roll gone out by this utility model method fabrication and processing, within the scope of different temperature, in terms of intensity, is respectively provided with obvious advantage.
It should be noted last that, above detailed description of the invention is only in order to illustrate the technical solution of the utility model and unrestricted, although this utility model being described in detail with reference to preferred embodiment, it will be understood by those within the art that, the technical solution of the utility model can be modified or equivalent, without deviating from the spirit and scope of technical solutions of the utility model, it all should be contained in the middle of right of the present utility model.
Claims (1)
1. a segmentation tube rolling roll shape, it is characterized in that, the center of tube rolling roll shape is provided with axis hole, tube rolling roll shape external diameter 1000-1200mm, body of roll overall length 1000mm, the body of roll is broadly divided into approach cone (2) and outlet cone (1), approach cone (2) includes four roll surface angles, outlet cone (1) includes four roll surface angles, and the roll surface of roll is always divided into eight intervals, is followed successively by:
Approach cone I district (L8), is used for ensureing that operation of rolling hollow billet is nipped smoothly, chamfer radius is 40mm, and roll entrance face roll surface angle is 9 °, a length of 165mm；
Approach cone II district (L7) roll surface angle is 7 °, a length of 165mm；
Approach cone III district (L6) roll surface angle is 3.25 °, a length of 85mm；
Wall-thickness reduction zone (L5) roll surface angle is 4.5 °, a length of 45mm；
3.4 ° of Runout area (L4) roll surface angle, a length of 220mm；
2 ° of outlet cone I district (L3) roll surface angle, a length of 150mm；
2.25 ° of outlet cone II district (L2) roll surface angle, a length of 100mm；
4 ° of outlet cone III district (L1) roll surface angle, a length of 70mm, chamfer radius is 15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620411408.2U CN205732285U (en) | 2016-05-09 | 2016-05-09 | A kind of eight segmentation tube rolling roll shapes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620411408.2U CN205732285U (en) | 2016-05-09 | 2016-05-09 | A kind of eight segmentation tube rolling roll shapes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750332A (en) * | 2016-05-09 | 2016-07-13 | 鑫鹏源智能装备集团有限公司 | Eight-section type pipe rolling roll shape and manufacturing method thereof |
| CN115608784A (en) * | 2022-12-16 | 2023-01-17 | 太原理工大学 | Large length-diameter ratio heterogeneous metal composite thin-walled tube progressive skew rolling composite equipment and method thereof |
-
2016
- 2016-05-09 CN CN201620411408.2U patent/CN205732285U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750332A (en) * | 2016-05-09 | 2016-07-13 | 鑫鹏源智能装备集团有限公司 | Eight-section type pipe rolling roll shape and manufacturing method thereof |
| CN115608784A (en) * | 2022-12-16 | 2023-01-17 | 太原理工大学 | Large length-diameter ratio heterogeneous metal composite thin-walled tube progressive skew rolling composite equipment and method thereof |
| CN115608784B (en) * | 2022-12-16 | 2023-03-07 | 太原理工大学 | Large length-diameter ratio heterogeneous metal composite thin-walled tube progressive skew rolling composite equipment and method thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |