CN105013816A - Blooming mill for steel billets - Google Patents
Blooming mill for steel billets Download PDFInfo
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- CN105013816A CN105013816A CN201510441528.7A CN201510441528A CN105013816A CN 105013816 A CN105013816 A CN 105013816A CN 201510441528 A CN201510441528 A CN 201510441528A CN 105013816 A CN105013816 A CN 105013816A
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- roller
- steel billet
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- auxiliary roll
- king roller
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Abstract
The invention belongs to the technical field of steel billet manufacturing, and particularly discloses a blooming mill for steel billets. The blooming mill comprises a first main roller and a second main roller, and the gap between the roller face of the first main roller and the roller face of the second main roller is smaller than the thickness of the steel billets. The first main roller and the second main roller rotate oppositely. The blooming mill further comprises a first auxiliary roller and a second auxiliary roller, and the gap between the roller face of the first auxiliary roller and the roller face of the second auxiliary roller is smaller than the thickness of the steel billets. The nip angles between the steel billets and the first and second auxiliary rollers are smaller than the nip angles between the steel billets and the roller faces of the first and second main rollers. The first auxiliary roller and the second auxiliary roller rotate oppositely. The first auxiliary roller and the first main roller are sequentially arranged in the steel billet feeding direction. The steel billets pass the gap between the roller face of the first auxiliary roller and the roller face of the second auxiliary roller, and enter the gap between the roller face of the first main roller and the end face of the second main roller. The steel billets are extruded by the first main roller and the second main roller to complete plastic deformation.
Description
Technical field
The invention belongs to steel billet manufacturing technology field, particularly relate to a kind of blooming mill for steel billet.
Background technology
Blooming mill is that steel billet is extruded by external force by one, and produces the plant equipment of plastic deformation.Existing blooming mill is used for greatly the process of steel blank part, carries out fine finishining process more afterwards to steel billet.Blooming mill mainly comprises motor and two rolls, and the gap between two roll surfaces is less than the thickness of steel billet.Driven by motor roller rotational, steel billet is pulled in the gap between two roll surfaces by the frictional force formed between roll and steel billet, and steel billet is squeezed generation plastic deformation.In real work, often occur that steel billet is difficult to the problem in the gap entered between roll surface, be commonly called as " difficulty of nipping ", its main cause is, nip angle is excessive, and frictional force is difficult to be pulled into by steel billet in the gap between two roll surfaces, thus causes blooming mill cannot extrude steel billet.And if reduce nip angle, then can make roll diameter increase and amount of compression reduce, the diameter increase of roll has certain limit, and amount of compression minimizing the number of times of rolling will certainly be made to increase, finally cause inefficiency.
Summary of the invention
Object of the present invention is providing a kind of blooming mill for steel billet, to solve the problem that steel billet is difficult to the gap entered between roll surface.
In order to achieve the above object, the invention provides a kind of blooming mill for steel billet, comprise the first king roller and the second king roller, gap between described first king roller and the second king roller roll surface is less than the thickness of steel billet, and the first king roller and the second king roller rotate in opposite directions, it is characterized in that, also comprise the first auxiliary roll and the second auxiliary roll, gap between described first auxiliary roll and the second auxiliary roll surface is less than the thickness of steel billet, steel billet and the first auxiliary roll, nip angle between second auxiliary roll is less than steel billet and the nip angle between the first king roller and the second king roller roll surface, first auxiliary roll and the second auxiliary roll rotate in opposite directions, described first auxiliary roll and the first king roller are arranged successively along the direction of steel billet charging.
Principle of the present invention is: the first auxiliary roll and the second auxiliary roll rotate in opposite directions, steel billet is pulled in the gap between the first auxiliary roll and the second auxiliary roll surface, carry out preliminary spacing, and promote steel billet and enter in the gap of the first king roller and the second king roller roll surface, steel billet is subject to the extruding of the first king roller and the second king roller, completes plastic deformation.
Effect of the present invention is: the gap between the first auxiliary roll and the second auxiliary roll surface is less than the thickness of steel billet, first auxiliary roll and the first king roller are arranged successively along the direction of steel billet charging, then the first auxiliary roll and the second auxiliary rolling have good positioning action to steel billet, to ensure that steel billet moves stably.Steel billet and the first auxiliary roll, nip angle between second auxiliary roll is less than steel billet and the nip angle between the first king roller and the second king roller roll surface, then the first auxiliary roll and the second auxiliary roll can carry out pre-rolling process to steel billet, add the effect of plastic forming, simultaneously, behind the gap of steel billet being nipped between the first auxiliary roll and the second auxiliary roll with less nip angle, utilize the first auxiliary roll, the frictional force that second auxiliary roll provides steel billet, and coordinate the first king roller, the frictional force that second king roller produces steel billet, steel billet is forced to nip in the gap of the first king roller and the second king roller roll surface, avoid the problem that steel billet is difficult to the gap entered between roll surface.Compared with traditional blooming mill, without the need to reducing steel billet and the nip angle between the first king roller and the second king roller roll surface, ensure that amount of compression is not reduced, ensure that operating efficiency.
Further, described first king roller and the second king roller are provided with cut channel, and cut channel can increase the coefficient of friction of roll surface greatly, thus increase the frictional force between roll surface and steel billet, thus add effect of nipping.
Further, described first auxiliary roll and the second auxiliary roll are provided with cut channel, and cut channel can increase the coefficient of friction of roll surface greatly, thus increase the frictional force between roll surface and steel billet, thus add effect of nipping.
Further, described cut channel is latticed, and the active force between the roll surface of latticed cut channel and steel billet, relative to evenly, makes the surface quality of the steel billet after rolling better.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the blooming mill embodiment of steel billet.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: the auxiliary roll 4 of the auxiliary roll 3, second of the first king roller 1, second king roller 2, first, steel billet 5.
As shown in Figure 1, a kind of blooming mill for steel billet, comprise the first king roller 1, second king roller 2, first auxiliary roll 3 and the second auxiliary roll 4, all rolls are all driven by motor.First auxiliary roll 3 is positioned at the top of the second auxiliary roll 4, first king roller 1 is positioned at the top of the second king roller 2, gap between first auxiliary roll 3 and the second auxiliary roll 4 roll surface is greater than the gap between the first king roller 1 and the second king roller 2 roll surface, and the gap between the first auxiliary roll 3 and the second auxiliary roll 4 roll surface is less than the thickness of steel billet 5.First king roller 1 and the first auxiliary roll 3 rotate counterclockwise, and the second king roller 2 and the second auxiliary roll 4 rotate counterclockwise.Nip angle between steel billet 5 and the auxiliary roll 4 of the first auxiliary roll 3, second is 17.5 °, and the nip angle between steel billet 5 and the first king roller 1, second king roller 2 roll surface is 20 °.
During specific works, the auxiliary roll 4 of first auxiliary roll 3, second rotates under the driving of motor, by the gap of steel billet 5 from left side between the auxiliary roll 4 of the first auxiliary roll 3, second, first auxiliary roll and the second auxiliary rolling have good positioning action to steel billet, to ensure that steel billet moves stably, meanwhile, can also pre-rolling process be carried out to steel billet, add the effect of plastic forming.Simultaneously, behind the gap of steel billet 5 being nipped between the first auxiliary roll 3 and the second auxiliary roll 4 with less nip angle, utilize the frictional force that first auxiliary roll the 3, second auxiliary roll, 4 pairs of steel billets 5 provide, and coordinate the frictional force that the first king roller 1, second king roller 2 pairs of steel billets 5 produce, steel billet 5 is forced to nip in the gap of the first king roller 3 and the second king roller 4 roll surface, avoids the problem that steel billet 5 is difficult to the gap entered between roll surface.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (4)
1. the blooming mill for steel billet, comprise the first king roller and the second king roller, gap between described first king roller and the second king roller roll surface is less than the thickness of steel billet, and the first king roller and the second king roller rotate in opposite directions, it is characterized in that, also comprise the first auxiliary roll and the second auxiliary roll, gap between described first auxiliary roll and the second auxiliary roll surface is less than the thickness of steel billet, steel billet and the first auxiliary roll, nip angle between second auxiliary roll is less than steel billet and the nip angle between the first king roller and the second king roller roll surface, first auxiliary roll and the second auxiliary roll rotate in opposite directions, described first auxiliary roll and the first king roller are arranged successively along the direction of steel billet charging.
2., as claimed in claim 1 for the blooming mill of steel billet, it is characterized in that, described first king roller and the second king roller are provided with cut channel.
3., as claimed in claim 1 for the blooming mill of steel billet, it is characterized in that, described first auxiliary roll and the second auxiliary roll are provided with cut channel.
4., as claimed in claim 2 or claim 3 for the blooming mill of steel billet, it is characterized in that, described cut channel is latticed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510441528.7A CN105013816A (en) | 2015-07-26 | 2015-07-26 | Blooming mill for steel billets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510441528.7A CN105013816A (en) | 2015-07-26 | 2015-07-26 | Blooming mill for steel billets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105013816A true CN105013816A (en) | 2015-11-04 |
Family
ID=54404319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510441528.7A Pending CN105013816A (en) | 2015-07-26 | 2015-07-26 | Blooming mill for steel billets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105013816A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113396021A (en) * | 2019-01-21 | 2021-09-14 | 杰富意钢铁株式会社 | Steel ingot rolling method |
| CN115608775A (en) * | 2022-12-16 | 2023-01-17 | 江苏甬金金属科技有限公司 | Reciprocating type high-strength titanium alloy steel plate cold rolling device |
-
2015
- 2015-07-26 CN CN201510441528.7A patent/CN105013816A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113396021A (en) * | 2019-01-21 | 2021-09-14 | 杰富意钢铁株式会社 | Steel ingot rolling method |
| CN115608775A (en) * | 2022-12-16 | 2023-01-17 | 江苏甬金金属科技有限公司 | Reciprocating type high-strength titanium alloy steel plate cold rolling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151104 |
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| WD01 | Invention patent application deemed withdrawn after publication |