CN106734206B - C-type steel diplopore rolls axial symmetry pass and milling method - Google Patents
C-type steel diplopore rolls axial symmetry pass and milling method Download PDFInfo
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- CN106734206B CN106734206B CN201611110542.XA CN201611110542A CN106734206B CN 106734206 B CN106734206 B CN 106734206B CN 201611110542 A CN201611110542 A CN 201611110542A CN 106734206 B CN106734206 B CN 106734206B
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- Prior art keywords
- type steel
- pass
- pair
- join domain
- axial symmetry
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
Abstract
The present invention provides a kind of C-type steel diplopore rolling axial symmetry pass and milling method, the axial symmetry pass is put together by the upper roller and lower roll of milling train, the axial symmetry pass is a pair of along the C-type steel pass that axis AA is symmetrical and is connected to through join domain, a C-type steel pass and another C-type steel pass bilateral symmetry on the right side of the axis AA, the join domain on the left of the axis AA link together the side of the free end on the edge of a wing in the pair of C-type steel pass.A kind of C-type steel diplopore rolling axial symmetry pass and milling method disclosed by the invention, can be improved the hour output of steel and rolling stability of C-type steel, reduce production cost.
Description
Technical field
The present invention relates to rolling of sectional iron fields, and in particular to a kind of C-type steel diplopore rolling axial symmetry pass and milling method,
It is a kind of completely new pass exploitation and milling method, improves fashioned iron hour output of steel and rolling stability, reduce production cost.
Background technique
C-type steel is the main material in mine, water conservancy and building, very widely used；The production technology of C-type steel is non-at present
Often mature, the production technology of especially middle small dimension is more stable；But because of the factors such as milling train specification, some middle small dimensions in production
Roll on hole type design, only design a set of pass, there are huge wastes, in the stagnant situation of current steel market,
Cost pressure is prominent, it is therefore desirable to use new hole type design and milling method, under the conditions of certain cost, improve output of steel.
Summary of the invention
The purpose of the present invention is to provide a kind of C-type steel diplopore rolling axial symmetry pass and milling methods, can be improved c-type
The hour output of steel and rolling stability of steel reduce production cost.
To achieve the goals above, the present invention provides the following technical scheme that
A kind of C-type steel diplopore rolling axial symmetry pass, is put together, which is by the upper roller and lower roll of milling train
A pair is symmetrical along axis AA and the C-type steel pass that is connected to through join domain, a C-type steel pass on the left of the axis AA with
Another C-type steel pass bilateral symmetry on the right side of the axis AA, the join domain will be in the pair of C-type steel pass
The side of the free end on the edge of a wing links together.
Preferably, in above-mentioned C-type steel diplopore rolling axial symmetry pass, the horizontal center line of the join domain is DD,
The horizontal center line DD of the join domain is vertical with the axis AA.
Preferably, in above-mentioned C-type steel diplopore rolling axial symmetry pass, the horizontal center line DD of the join domain and institute
Stating the distance between bottom end of C-type steel pass is B2, the wing of the horizontal center line DD of the join domain and the C-type steel pass
The distance between free end of edge is B1, and B2 > B1.
On the other hand, the present invention also provides a kind of milling methods of C-type steel, pass through reversible blooming mill and universal mill
The production line that group is constituted is rolled, and each universal mill in the universal mill group is rolled with any of the above-described C-type steel diplopore
Axial symmetry pass, the milling method include following operating procedure:
Step 1 rolls blank using reversible blooming mill, to roll out into rolled piece needed for universal mill group；
Step 2 is successively rolled a pair of of c-type to be connected as one using UR/E/UC milling train to the rolled piece
Steel, the pair of C-type steel are connected by the connecting plate that the join domain of the pass is formed；
Step 3 carries out sawing, planing and turnery processing to the connecting plate for a pair of of the C-type steel being connected as one, will
A pair of of the C-type steel being connected as one separates and obtains two finished product C-type steels.
Analysis can be improved C it is found that the invention discloses a kind of C-type steel diplopore rolling axial symmetry pass and milling method
The hour output of steel and rolling stability of fashioned iron reduce production cost.
The present invention under the conditions of existing equipment, devises diapsid (i.e. according to section steel works large-scale production line rolling mill design ability
Axial symmetry pass), the method rolled using axial symmetry pass improves mill speed, and primary producing line hour output of steel is
260t, and hour output of steel is 520t after using roll pass of the invention, and rolling stability is improved, and yield rate increases
Add 100%, so that the rolling of " C " fashioned iron (especially on middle small dimension) is accomplished the mass production of maximum-norm, reduce life
Produce cost.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.Wherein:
Fig. 1 is showing for C-type steel diplopore rolling axial symmetry pass (i.e. horizontal diapsid) that top and bottom rolls of the present invention are assembled into
It is intended to；
Fig. 2 is the diagrammatic cross-section using the finished product of the axial symmetry groove rolling of Fig. 1.
Description of symbols: 1-C Pass；11-C fashioned iron；2-C Pass；22-C fashioned iron；3- join domain；4-
Bottom plate；The edge of a wing 5-.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that in the feelings not conflicted
Under condition, the features in the embodiments and the embodiments of the present application be can be combined with each other.
In the description of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the present invention rather than require the present invention that must be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.Term used in the present invention " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected,
It may be a detachable connection；It can be directly connected, can also be indirectly connected by intermediate member, for the common of this field
For technical staff, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figure 1 to Figure 2, according to an embodiment of the invention, providing a kind of C-type steel diplopore rolling axial symmetry pass,
Referring to Fig. 1, it is put together by the upper roller and lower roll of universal rolling mill and is formed by the groove of the upper roller of universal rolling mill and lower roll,
The axial symmetry pass is a pair of along the C-type steel pass (1,2) that axis AA is symmetrical and is connected to through join domain 3, i.e., left in axis AA
One C-type steel pass 1 of side and another 2 bilateral symmetry of C-type steel pass on the right side of axis AA.
The horizontal center line of join domain 3 is DD, and the horizontal center line DD of join domain 3 is vertical with axis AA.
Join domain 3 links together the side of the free end on the edge of a wing 5 in a pair of of C-type steel pass (1,2), using even
Connect region 3 by part corresponding with 5 free end of the C-type steel edge of a wing be connected can preferably during controlled rolling rolled piece weight
The heart, to avoid the inclined head and nose of rolled piece.Single C-type steel pass (1,2) is existing C-type steel pass, the C-type steel rolled out
(11,22) with bottom plate 4, positioned at bottom plate 4 both ends and be located at ipsilateral two edges of a wing 5 of bottom plate 4, referring to fig. 2；Of the invention
C-type steel diplopore rolling axial symmetry pass is to connect above-mentioned single C-type steel pass (1,2) by join domain 3.The join domain
3 are connected for " C " section steel flange 5 designs, and vertical range of the horizontal center line DD of join domain 3 apart from pass upper and lower ends portion is not
It is B2, the water of join domain 3 Deng the distance between the horizontal center line DD of, join domain 3 and the bottom end of C-type steel pass (1,2)
The distance between free end on the edge of a wing of flat center line DD and C-type steel pass (1,2) is B1, and B2 > B1, is arranged such not only
Conducive to secondary operation, and it is conducive to rolled piece and uniformly extends.
Roll with pass of the present invention is to get on the bus to cut out a pair of of axial symmetry hole in new roll by the way of symmetrical turning
Type.
A kind of milling method of C-type steel of the invention is specifically described below.
Embodiment
The top and bottom rolls of universal roughing mill and universal finishing mill all have axial symmetry pass of the invention；
Roll in order to be adapted reversible blooming mill with the universal mill with above-mentioned symmetrical pass, on reversible blooming mill
Pass is also axisymmetric.
Milling method is as follows:
Step 1 rolls blank using two-roller reversible blooming mill (BD), enters universal mill group institute to roll out
The rolled piece needed.
Step 2 is successively rolled a pair of of C-type steel to be connected as one using UR/E/UC milling train to rolled piece
(i.e. the finished product of axial symmetry groove rolling), referring to fig. 2 comprising a pair of symmetrical C-type steel and connect a pair of C-type steel
The secondary operation region (i.e. connecting plate 33 plays stabilization to rolled piece during the rolling process) of (11,22).
Step 3 carries out sawing, planing and turning to the connecting plate 33 for a pair of of the C-type steel (11,22) being connected as one
A pair of of the C-type steel being connected as one (11,22) are separated and obtain finished product C-type steel (11,22) by processing.
Comparative example
The finished product C-type steel size of rolling is identical as embodiment.
The top and bottom rolls pass of universal roughing mill and universal finishing mill is single C-type steel pass, the roll hole of reversible blooming mill
Type is adapted with it, and milling method is:
Step 1 rolls blank using reversible blooming mill, to roll out into rolled piece needed for universal mill group.
Step 2 successively rolls rolled piece using UR/E/UC milling train, obtains finished product C-type steel.
The milling method hour output of steel of the comparative example is 260t or so, and the milling method of the embodiment of the present invention is small
When output of steel be 520t or so, and rolling stability is improved, the milling method of the embodiment of the present invention and rolling for comparative example
Method processed is compared, and yield rate increases 100%.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
1, save the cost.
2, hour output of steel significantly improves.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of C-type steel diplopore rolls axial symmetry pass, which is characterized in that it is put together by the upper roller and lower roll of milling train, the axis
Symmetrical pass is an a pair of C along the C-type steel pass that axis AA is symmetrical and is connected to through join domain, on the left of the axis AA
Pass and another C-type steel pass bilateral symmetry on the right side of the axis AA, the join domain is by the pair of c-type
The side of the free end on the edge of a wing in steel pass links together；The horizontal center line of the join domain is DD, the connection
The horizontal center line DD in region is vertical with the axis AA；The horizontal center line DD of the join domain and the C-type steel pass
The distance between bottom end be B2, the free end on the edge of a wing of the horizontal center line DD of the join domain and the C-type steel pass
The distance between be B1, and B2 > B1；
The C-type steel groove rolling go out C-type steel have bottom plate and positioned at the bottom plate both ends and be located at the bottom plate
Two ipsilateral edges of a wing；
Angle between the bottom plate and two edges of a wing is obtuse angle.
2. a kind of milling method of C-type steel, which is characterized in that the production line being made up of reversible blooming mill and universal mill group
It is rolled, there is each universal mill in the universal mill group C-type steel diplopore described in claim 1 to roll axial symmetry hole
Type, the milling method include following operating procedure:
Step 1 rolls blank using reversible blooming mill, to roll out into rolled piece needed for universal mill group；
Step 2 is successively rolled a pair of of C-type steel to be connected as one using UR/E/UC milling train to the rolled piece,
The pair of C-type steel is connected by the connecting plate that the join domain of the axial symmetry pass is formed；
Step 3 carries out sawing, planing and turnery processing to the connecting plate for a pair of of the C-type steel being connected as one, will connect
A pair of of the C-type steel being integrated separates and obtains two finished product C-type steels.
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| CN201611110542.XA CN106734206B (en) | 2016-12-02 | 2016-12-02 | C-type steel diplopore rolls axial symmetry pass and milling method |
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| CN201611110542.XA CN106734206B (en) | 2016-12-02 | 2016-12-02 | C-type steel diplopore rolls axial symmetry pass and milling method |
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| CN106734206B true CN106734206B (en) | 2019-08-27 |
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| CN108889775A (en) * | 2018-06-25 | 2018-11-27 | 攀钢集团攀枝花钢钒有限公司 | Guard rail U-steel roll mill and milling method |
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| CN103316919A (en) * | 2013-07-08 | 2013-09-25 | 莱芜钢铁集团有限公司 | Mill roll assembly, rolling mill and method for rolling forklift portal frame profile steel |
| CN103350114A (en) * | 2013-07-19 | 2013-10-16 | 莱芜钢铁集团有限公司 | Double-pass roller for machining track shape steel and rolling method |
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| CN206229835U (en) * | 2016-12-02 | 2017-06-09 | 山东钢铁股份有限公司 | C-type steel diplopore rolls axial symmetry pass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6411001A (en) * | 1987-07-06 | 1989-01-13 | Nippon Steel Corp | Method for rolling and separating shape steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0156405A1 (en) * | 1984-03-02 | 1985-10-02 | DANIELI & C. OFFICINE MECCANICHE S.p.A. | Roll forming procedure with slitting of angle bars and T-beams |
| CN103316919A (en) * | 2013-07-08 | 2013-09-25 | 莱芜钢铁集团有限公司 | Mill roll assembly, rolling mill and method for rolling forklift portal frame profile steel |
| CN103350114A (en) * | 2013-07-19 | 2013-10-16 | 莱芜钢铁集团有限公司 | Double-pass roller for machining track shape steel and rolling method |
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| CN103357664A (en) * | 2013-07-19 | 2013-10-23 | 莱芜钢铁集团有限公司 | F-shaped steel section roll groove pattern and rolling method |
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| CN106734206A (en) | 2017-05-31 |
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