CN220760551U - Improved alloy semisteel horizontal and vertical rolling combined roller for H-shaped steel roughing mill set - Google Patents
Improved alloy semisteel horizontal and vertical rolling combined roller for H-shaped steel roughing mill set Download PDFInfo
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- CN220760551U CN220760551U CN202322163497.6U CN202322163497U CN220760551U CN 220760551 U CN220760551 U CN 220760551U CN 202322163497 U CN202322163497 U CN 202322163497U CN 220760551 U CN220760551 U CN 220760551U
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- 238000005096 rolling process Methods 0.000 title claims abstract description 73
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 17
- 239000000956 alloy Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 abstract description 10
- 229910001563 bainite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001562 pearlite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of rollers, in particular to an improved alloy semisteel horizontal and vertical rolling combined roller for an H-shaped steel roughing mill set, which comprises an upper horizontal roller and a lower horizontal roller which are horizontally arranged up and down; a first gap is formed between the upper horizontal roller and the lower horizontal roller up and down, and a left vertical roller and a right vertical roller are symmetrically arranged on two sides of the first gap respectively; a second gap is formed between the left vertical roller and the right vertical roller; the first gap and the second gap are fused to form a rolling cavity. The improved alloy semisteel horizontal and vertical rolling combined roller for the H-shaped steel roughing mill set has good hardness, wear resistance, excellent toughness and thermal crack resistance, can better meet the use requirements of the rolling mill operating under various rolling methods, and can prolong the service life of the roller.
Description
Technical Field
The utility model relates to the technical field of rollers, in particular to an improved alloy semisteel horizontal and vertical rolling combined roller for an H-shaped steel roughing mill set.
Background
The section steel rolling method comprises shuttle rolling, tracking rolling, continuous rolling and universal rolling according to the arrangement mode of rolling mills. The shuttle rolling, that is, rolling in the same rolling mill or train, alternately sends the head and tail of the rolled piece into the rolling mill. This rolling process is generally carried out on a transverse in-line rolling mill. The tracking rolling means that when rolling, the rolled piece always enters the rolling mill from one end, and the head part enters the next stand after the rolling on the other stand of the rolled piece is finished. Such rolling methods are typically performed on in-line rolling mills or in-line reciprocating rolling mills. Continuous rolling, i.e. rolling a rolled piece in several working stands simultaneously, the rolling speed of each working stand should be in accordance with the principle of equal second flow. The number of the working bases is the number of rolling channels, and the distance between the working bases is smaller than the length of the corresponding rolling piece. The advantages are that: 1) The rolling time of the rolled piece on each working stand is equal, the ground capacity of the rolling mill can be fully exerted, and the rolling mill yield is high; 2) The rolling speed is high, so that the ground temperature of the rolled piece is reduced, and the dimensional accuracy of the product is improved; 3) The machine has high mechanization and automation, and the labor intensity of workers is good. The universal rolling method is a method of rolling a section steel using a universal rolling mill. The universal rolling mill is essentially a universal pass consisting of a pair of horizontal and a pair of vertical rolls, but it is deformed not only by the thickness reduction but also by rolling to meet the cross-sectional size and shape requirements, unlike rolling steel sheets, without obtaining a clean rolled product by trimming.
The rolling conditions and the environment can be seen from different rolling speeds and different yields by different machine type arrangements of the section steel rolling method, the use requirements of the rollers are higher and higher, particularly, the low-temperature rolling process is adopted to improve the surface quality of rolled pieces, so that the pressure load born by the rollers is increased, accidents such as stripping, chipping and even roller breakage are extremely easy to occur, and particularly, the universal rolling method is particularly obvious when H-shaped steel and I-shaped steel are rolled. The horizontal and vertical combined rolls for roughing mill are mainly made of pearlite, bainite, semisteel and other materials.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to solve the problems in the prior art, the improved alloy semisteel horizontal and vertical rolling combined roller for the H-shaped steel roughing mill set has good hardness, wear resistance, excellent toughness and thermal cracking resistance, can better meet the use requirements of the rolling mill operating under various rolling methods, and can prolong the service life of the roller.
The technical scheme adopted for solving the technical problems is as follows: the improved alloy semisteel horizontal and vertical rolling combined roller for the H-shaped steel roughing mill set comprises an upper horizontal roller and a lower horizontal roller which are horizontally arranged up and down; a first gap is formed between the upper horizontal roller and the lower horizontal roller up and down, and a left vertical roller and a right vertical roller are symmetrically arranged on two sides of the first gap respectively; a second gap is formed between the left vertical roller and the right vertical roller; the first gap and the second gap are fused to form a rolling cavity.
Further limited, in the above technical solution, the section of the rolling cavity is in a horizontal H-shaped structure.
Further limited, in the above technical solution, the outer sides of the upper horizontal roller and the outer sides of the lower horizontal roller are respectively provided with a first chamfer.
Further limited, in the above technical solution, the cross sections of the outer sides of the left vertical roll and the outer sides of the right vertical roll are peak-shaped structures.
Further limited, in the above technical scheme, the surface hardness of the upper horizontal roller, the lower horizontal roller, the left vertical roller and the right vertical roller is 30-80HSD.
Further limited, in the technical scheme, the tensile strength of the upper horizontal roller, the lower horizontal roller, the left vertical roller and the right vertical roller is more than or equal to 550MPa.
The beneficial effects of the utility model are as follows: the improved alloy semisteel horizontal and vertical rolling combined roller for the H-shaped steel roughing mill set provided by the utility model has good hardness, wear resistance, excellent toughness and thermal crack resistance, can better meet the use requirements of the mill in various rolling methods, and can prolong the service life of the roller.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic cross-sectional view of the rolling chamber of fig. 1.
The reference numerals in the drawings are: 1. the upper horizontal roller, the lower horizontal roller, the left vertical roller, the right vertical roller, the rolling cavity, the first chamfer, the peak-shaped structure and the first chamfer are respectively arranged on the upper horizontal roller, the lower horizontal roller, the left vertical roller, the right vertical roller and the rolling cavity.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The improved alloy semisteel horizontal and vertical rolling combined roller for the H-shaped steel roughing mill set is shown in fig. 1 and 2, and comprises an upper horizontal roller 1 and a lower horizontal roller 2 which are horizontally arranged up and down; a first gap is formed between the upper horizontal roller 1 and the lower horizontal roller 2 up and down, and a left vertical roller 3 and a right vertical roller 4 are symmetrically arranged on two sides of the first gap respectively; a second gap is formed between the left vertical roller 3 and the right vertical roller 4; the first gap merges with the second gap to form a rolling cavity 5.
Wherein the section of the rolling cavity 5 is in a horizontal H-shaped structure. The outer sides of the upper horizontal roller 1 and the lower horizontal roller 2 are respectively provided with a first chamfer 6. The cross sections of the outer side of the left vertical roller 3 and the outer side of the right vertical roller 4 are respectively in peak-shaped structures 7. The surface hardness of the upper horizontal roller 1, the lower horizontal roller 2, the left vertical roller 3 and the right vertical roller 4 is 30-80HSD. The tensile strength of the upper horizontal roller 1, the lower horizontal roller 2, the left vertical roller 3 and the right vertical roller 4 is more than or equal to 550MPa.
The production and processing technology of the improved alloy semisteel horizontal and vertical rolling combined roller for the H-shaped steel roughing mill unit comprises the following steps: 1. rolling H-shaped steel according to a universal rolling method, and developing a set of structure composed of a pair of horizontal rollers and a pair of opposite rollers for a rolling unit; 2. the combined roller is made of alloy semisteel; the chemical components are as follows: c:1.80-2.00%; si:0.40-0.80%; mn:0.60-1.20%; cr:1.00-3.00%; ni:1.50-2.50%; mo:0.30-0.60%; p is less than or equal to 0.03%; s is less than or equal to 0.025 percent; v:0.10-0.30%; nb is more than or equal to 0.05%; 3. the surface hardness of the four rollers is 30-80HSD; the tensile strength of the four rollers is more than or equal to 550MPa; the metallographic structure of the four rollers is granular carbide, tempered sorbite and bainite.
The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1.H shaped steel roughing mill is with improved generation alloy semisteel level and vertical rolling combination roll, its characterized in that: comprises an upper horizontal roller and a lower horizontal roller which are horizontally arranged up and down; a first gap is formed between the upper horizontal roller and the lower horizontal roller up and down, and a left vertical roller and a right vertical roller are symmetrically arranged on two sides of the first gap respectively; a second gap is formed between the left vertical roller and the right vertical roller; the first gap and the second gap are fused to form a rolling cavity.
2. The improved alloy semisteel horizontal and vertical rolling combination roll for an H-section roughing mill set according to claim 1, wherein: the section of the rolling cavity is of a horizontal H-shaped structure.
3. The improved alloy semisteel horizontal and vertical rolling combination roll for an H-section roughing mill set according to claim 1, wherein: the outer sides of the upper horizontal roller and the lower horizontal roller are respectively provided with a first chamfer.
4. The improved alloy semisteel horizontal and vertical rolling combination roll for an H-section roughing mill set according to claim 1, wherein: the cross sections of the outer sides of the left vertical roller and the right vertical roller are in peak structures.
5. The improved alloy semisteel horizontal and vertical rolling combination roll for an H-section roughing mill set according to claim 1, wherein: the surface hardness of the upper horizontal roller, the lower horizontal roller, the left vertical roller and the right vertical roller is 30-80HSD.
6. The improved alloy semisteel horizontal and vertical rolling combination roll for an H-section roughing mill set according to claim 1, wherein: the tensile strength of the upper horizontal roller, the lower horizontal roller, the left vertical roller and the right vertical roller is more than or equal to 550MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322163497.6U CN220760551U (en) | 2023-08-10 | 2023-08-10 | Improved alloy semisteel horizontal and vertical rolling combined roller for H-shaped steel roughing mill set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322163497.6U CN220760551U (en) | 2023-08-10 | 2023-08-10 | Improved alloy semisteel horizontal and vertical rolling combined roller for H-shaped steel roughing mill set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220760551U true CN220760551U (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322163497.6U Active CN220760551U (en) | 2023-08-10 | 2023-08-10 | Improved alloy semisteel horizontal and vertical rolling combined roller for H-shaped steel roughing mill set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220760551U (en) |
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2023
- 2023-08-10 CN CN202322163497.6U patent/CN220760551U/en active Active
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