CN107695094A - The production system of H profile steel - Google Patents
The production system of H profile steel Download PDFInfo
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- CN107695094A CN107695094A CN201710946798.2A CN201710946798A CN107695094A CN 107695094 A CN107695094 A CN 107695094A CN 201710946798 A CN201710946798 A CN 201710946798A CN 107695094 A CN107695094 A CN 107695094A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 58
- 239000010959 steel Substances 0.000 title claims abstract description 58
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000005096 rolling process Methods 0.000 claims abstract description 73
- 238000007688 edging Methods 0.000 claims abstract description 41
- 238000003801 milling Methods 0.000 claims abstract description 12
- 238000009749 continuous casting Methods 0.000 claims abstract description 10
- 210000002784 stomach Anatomy 0.000 claims description 32
- 238000007493 shaping process Methods 0.000 claims description 23
- 230000007704 transition Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 210000001015 abdomen Anatomy 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 13
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- 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
- B21B1/088—H- or I-sections
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- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention provides a kind of production system of H profile steel, and it includes roughing mills, X passes universal mill, edging mill and H pass universal mills.Roughing mills are first by for producing the continuous casting billet milling of H profile steel into the blank of centre.X passes universal mill includes two the second horizontal rollers and two the second edger rolls.X-shaped rolling hole is formed between two the second horizontal rollers and two the second edger rolls.When the blank for the centre that roughing mills roll out enters the X-shaped rolling hole of X pass universal mills, two the second horizontal rollers first carry out roll-in to the web of blank, then the second horizontal roller and the second edger roll carry out roll-in to the web of blank and the edge of a wing simultaneously, so as to roll out the blank of X-shaped.The blank of X-shaped after X pass Rolling With Universal Mills enters edging mill, and edging mill rolls to the edge of a wing of the blank of X-shaped, to adjust the width on the edge of a wing.The blank rolling that H passes universal mill is used for the X-shaped after edging mill is rolled is H profile steel.
Description
Technical field
The present invention relates to Metal Forming forming field, more particularly to a kind of production system of H profile steel.
Background technology
H profile steel has increasingly been valued by the people since the appearance as a kind of high-efficiency and economic section bar, is widely used in height
The engineerings such as layer building, industrial premises, mine support, thermal power generation, petrochemical industry, bay work, bridge gate dam, subway engineering are built
If in project.The production method of rolled h-section steel beam at present, be by blank X passes universal roughing mill (reference picture 13), edging mill and
Multi- pass rolling is carried out on H pass universal finishing mills, so as to roll out H profile steel.But in order to realize the balanced deformation of blank,
Existing production system is directly difficult using rectangular billet rolling, generally requires and carries out cogging by roughing mill or directly cast out near
Whole type abnormity blank (as shown in figure 14), the specification limit of production is caused to be limited, efficiency reduces.
The content of the invention
In view of problem present in background technology, it is an object of the invention to provide a kind of production system of H profile steel, its energy
H profile steel directly is prepared using the blank of rectangle, expands the specification limit of product, increases substantially yield.
To achieve these goals, the invention provides a kind of production system of H profile steel, it includes roughing mills, X passes
Universal mill, edging mill and H pass universal mills.
Roughing mills include at least one two-roller mill, and each two-roller mill includes two first level rollers；Or roughing mill
Group includes at least one two-roller mill and at least one vertical miller, and each two-roller mill includes two first level rollers, each edger roll
Milling train includes two the first edger rolls.
Continuous casting billet for producing H profile steel forms the blank of centre under roughing mills rolling first.
X passes universal mill includes two the second horizontal rollers being oppositely arranged and respectively positioned at the second horizontal roller both sides
Two the second edger rolls, and the axis of two the second horizontal rollers and two the second edger rolls is in a plane and to form X passes omnipotent
The roller system of milling train.Formation X-shaped rolling hole between two the second horizontal rollers and two the second edger rolls, each second horizontal roller and blank
The roll surface of web contact forms the stomach wall in X-shaped rolling hole, and the vertical centerline that stomach wall rolls hole using X-shaped forms two as boundary to both sides
It is individual on the symmetrical sub- stomach wall of vertical centerline, the angle of sub- stomach wall and horizontal plane is α.The edge of a wing of second horizontal roller and blank connects
The angle of the madial wall in tactile two sides formation X-shaped rolling hole, madial wall and horizontal plane is β.The wing of each second edger roll and blank
The roll surface of edge contact forms the lateral wall in X-shaped rolling hole, and the horizontal center line that lateral wall rolls hole using X-shaped is boundary to both sides shape
Into two on horizontal center line symmetrically sub- lateral wall, and the angle of sub- lateral wall and horizontal plane is θ.Roughing mills roll out
The blank of centre when entering the X-shaped rolling hole of X pass universal mills, two the second horizontal rollers first carry out roller to the web of blank
Pressure, then the second horizontal roller and the second edger roll are simultaneously to the web of blank and edge of a wing progress roll-in, so as to roll out the base of X-shaped
Material.
The blank of X-shaped after X pass Rolling With Universal Mills enters edging mill, the edge of a wing of the edging mill to the blank of X-shaped
Rolled, to adjust the width on the edge of a wing.
H passes universal mill includes two the 3rd horizontal rollers being oppositely arranged and respectively positioned at the 3rd horizontal roller both sides
Two the 3rd edger rolls, and the axis of two the 3rd horizontal rollers and two the 3rd edger rolls is in a plane and to form H passes omnipotent
The roller system of milling train；Formation H-shaped rolling hole between two the 3rd horizontal rollers and two the 3rd edger rolls, each 3rd horizontal roller and blank
The roll surface of web contact forms the stomach wall in H-shaped rolling hole, stomach wall and plane-parallel；3rd horizontal roller contacts with the edge of a wing of blank
Two sides composition H-shaped rolling hole madial wall, the angle of madial wall and horizontal plane is 90 °~91 °；Each 3rd edger roll and blank
Edge of a wing contact roll surface composition H-shaped rolling hole lateral wall, and lateral wall is perpendicular to horizontal plane；H pass universal mills are used for
The blank rolling of X-shaped after edging mill is rolled is H profile steel.
Beneficial effects of the present invention are as follows：
Can be with by adjusting α, β, θ value and the reduction in pass of the reduction in pass of the second horizontal roller and the second edger roll
Adjust the amount of metal that web flows into the edge of a wing so that the edge of a wing of blank after the metal of web inflow is obtained with web along length side
To extension it is consistent.Further, since X passes universal mill can guide the metal flow in web to the edge of a wing of blank, therefore,
The production system of the H profile steel of the present invention directly can prepare H profile steel using the blank of rectangle, roll out the extension needed for H profile steel
Coefficient is smaller, and blank bites more preferable, and the drafts of single pass can be bigger, can expand the specification limit of product, greatly
Amplitude improves yield.
Brief description of the drawings
Fig. 1 is the schematic diagram according to an embodiment of the production system of the H profile steel of the present invention.
Fig. 2 is the schematic diagram according to another embodiment of the production system of the H profile steel of the present invention.
Fig. 3 is the schematic diagram according to the another embodiment of the production system of the H profile steel of the present invention.
Fig. 4 is the schematic diagram according to the used continuous casting billet of the production system of the H profile steel of the present invention.
Fig. 5 is showing for the blank of the X-shaped gone out according to the X pass Rolling With Universal Mills of the production system of the H profile steel of the present invention
It is intended to.
Fig. 6 be blank roll forming after H profile steel schematic diagram.
Fig. 7 is the schematic diagram according to the X pass universal mills of the production system of the H profile steel of the present invention.
Fig. 8 is the schematic diagram according to the H pass universal mills of the production system of the H profile steel of the present invention.
Fig. 9 is the schematic diagram according to the edging mill of the production system of the H profile steel of the present invention.
Figure 10 is the schematic diagram according to the two-roller mill of the roughing mills of the production system of the H profile steel of the present invention.
Figure 11 is the schematic diagram according to the vertical miller of the roughing mills of the production system of the H profile steel of the present invention.
Figure 12 is the schematic diagram that blank rolls in X pass universal mills.
Figure 13 is the schematic diagram of the X pass universal mills of prior art.
Figure 14 is the schematic diagram for the special-shaped blank that prior art uses.
Wherein, description of reference numerals is as follows：
The edge of a wing of 1 roughing mills 52
The X-shaped of 11 two-roller mill 6 rolls hole
The stomach wall of 111 first level roller 61
12 vertical miller, 611 sub- stomach wall
The madial wall of 121 first edger roll 62
The lateral wall of 2 X passes universal mill 63
21 second horizontal roller, 631 sub- lateral wall
The H-shaped of 22 second edger roll 7 rolls hole
The stomach wall of 3 edging mill 71
The madial wall of 4 H passes universal mill 72
The lateral wall of 41 the 3rd horizontal roller 73
42 the 3rd edger roll V vertical centerlines
5 blank L horizontal center lines
51 webs
Embodiment
With reference to the accompanying drawings come describe in detail the present invention H profile steel production system.
Referring to figs. 1 to Figure 12, roughing mills 1, X pass universal mills are included according to the production system of the H profile steel of the present invention
2nd, edging mill 3 and H passes universal mill 4.
Roughing mills 1 include at least one two-roller mill 11, and each two-roller mill 11 includes two first level rollers 111.Or
Person, in another embodiment, roughing mills 1 may include at least one two-roller mill 11 and at least one vertical miller 12, each two
Roller mill 11 includes two first level rollers 111, and each vertical miller 12 includes two the first edger rolls 121.
Continuous casting billet for producing H profile steel forms the blank 5 of centre under the rolling of roughing mills 1 first.
X passes universal mill 2 includes two the second horizontal rollers 21 being oppositely arranged and is located at the second horizontal roller 21 respectively
Two the second edger rolls 22 of both sides, and the axis of two the second horizontal rollers 21 and two the second edger rolls 22 is in a plane and shape
Into the roller system of X passes universal mill 2.X-shaped rolling (this of hole 6 is formed between two the second horizontal rollers 21 and two the second edger rolls 22
When X-shaped be intended merely to be different from H-shaped, primarily to embody rolling hole 6 gradient be present with the corresponding part of the edge of a wing 52), respectively
The roll surface that second horizontal roller 21 contacts with the web 51 of blank 5 forms the stomach wall 61 in X-shaped rolling hole 6, and stomach wall 61 rolls hole with X-shaped
6 vertical centerline V is that boundary forms two on the symmetrical sub- stomach walls 611 of vertical centerline V, sub- stomach wall 611 and water to both sides
The angle of plane (perpendicular to vertical centerline V face) is α.The two sides that second horizontal roller 21 contacts with the edge of a wing 52 of blank 5
The madial wall 62 in X-shaped rolling hole 6 is formed, the angle of madial wall 62 and horizontal plane is β.The edge of a wing of each second edger roll 22 and blank 5
The roll surface of 52 contacts forms the lateral wall 63 in X-shaped rolling hole 6, and lateral wall 63 rolls the horizontal center line L in hole 6 as boundary using X-shaped
Two are formed on horizontal center line L symmetrically sub- lateral walls 631, and the angle of sub- lateral wall 631 and horizontal plane is to both sides
θ.When the blank 5 for the centre that roughing mills 1 roll out enters the X-shaped rolling hole 6 of X passes universal mill 2, two the second horizontal rollers
21 first carry out roll-in to the web 51 of blank 5, and then the second horizontal roller 21 and the second edger roll 22 are simultaneously to the He of web 51 of blank 5
The edge of a wing 52 carries out roll-in, so as to roll out the blank 5 of X-shaped.
The blank 5 of X-shaped after the rolling of X passes universal mill 2 enters edging mill 3, and edging mill 3 is to the blank 5 of X-shaped
The edge of a wing 52 is rolled, to adjust the width on the edge of a wing 52.
H passes universal mill 4 includes two the 3rd horizontal rollers 41 being oppositely arranged and is located at the 3rd horizontal roller 41 respectively
Two the 3rd edger rolls 42 of both sides, and the axis of two the 3rd horizontal rollers 41 and two the 3rd edger rolls 42 is in a plane and shape
Into the roller system of H passes universal mill 4；H-shaped rolling hole 7 is formed between two the 3rd horizontal rollers 41 and two the 3rd edger rolls 42, respectively
The roll surface that 3rd horizontal roller 41 contacts with the web 51 of blank 5 forms the stomach wall 71 in H-shaped rolling hole 7, and stomach wall 71 is put down with horizontal plane
OK；The madial wall 72 in two sides that the 3rd horizontal roller 41 contacts with the edge of a wing 52 of blank 5 composition H-shaped rolling hole 7, madial wall 72 with
The angle of horizontal plane is 90 °~91 °；The roll surface composition H-shaped rolling hole 7 that each 3rd edger roll 42 contacts with the edge of a wing 52 of blank 5
Lateral wall 73, and lateral wall 63 is perpendicular to horizontal plane；H passes universal mill 4 is used for the blank 5 of the X-shaped after edging mill 3 is rolled
Roll as H profile steel.
Generally, the directly production for being not directly applicable H profile steel for the continuous casting billet (reference picture 4) that casting is formed, thus it is logical
The continuous rolling of roughing mills 1 is crossed, the length-width ratio of continuous casting billet can be adjusted, so as to obtain directly producing the centre of H profile steel
(for example, the blank 5 of the centre can be the blank of rectangle, certainly, the blank 5 of the centre can also be other shapes to blank 5
Blank, that is to say, that middle blank 5 is not necessarily the near-net-shape abnormity blank needed for prior art), be easy to X passes omnipotent
The rolling of milling train 2.Can be by adjusting the reduction in pass of the second horizontal roller 21 and the second edger roll 22 in X passes universal mill 2
Reduction in pass (such as increase the second horizontal roller 21 reduction in pass or reduce the second edger roll 22 reduction in pass) come
Ensure that two the second horizontal rollers 21 first carry out roll-in to the web 51 of blank 5, then the second horizontal roller 21 and the second edger roll 22 are same
When roll-in is carried out to the web 51 of blank 5 and the edge of a wing 52.For example, referring to Figure 12, blank 5 is during traveling, in the abdomen of blank 5
Plate 51 contacts with the second horizontal roller 21 and during by roll-in, the edge of a wing 52 (the corresponding part on section with web 51) of blank 5
Also fail to contact with the second edger roll 22, now, web 51 by roll-in, and due to the roll surface of the roll-in of the second horizontal roller 21 have it is oblique
Degree (angle α of sub- stomach wall 611 and horizontal plane), therefore the part metals in web 51 can enter under the guiding of sub- stomach wall 611
The edge of a wing 52.Advance after a segment distance, the edge of a wing 52 of blank 5 starts to contact with the second edger roll 22 and by roll-in, now, blank 5
Web 51 and the edge of a wing 52 simultaneously roll-in.That is, the web 51 of blank 5 is S1 and S2 by the deformed area of roll-in, and base
The edge of a wing 52 of material 5 is S2 by the deformed area of roll-in.
In deformed area S1, individually by roll-in, the edge of a wing 52 is not acted on the web 51 of blank 5 by external force, therefore also will not
From the width spread of both sides limitation web 51, and two inclined sub- stomach walls 611 can guide the metal flow in web 51 to arrive
The edge of a wing 52 of blank 5, so as to increase the width spread on the edge of a wing 52 and thickness, while reduce that localized metallic is loose or shrinkage cavity.Becoming
In shape area S1, most of metal of web 51 enters in the edge of a wing 52, only small part flow of metal and forms web 51 along length
The extension in direction (the namely direct of travel of blank 5).
Into after deformed area S2, web 51 and the edge of a wing 52 simultaneously by roll-in when, limit of the web 51 by two side wing edges 52
System, width spread are restricted, and therefore, in deformed area S2, web 51 is based on the extension of length direction.Meanwhile the edge of a wing 52
Also extend under rolling effect, and realize the compatible deformation with web 51.
By adjusting α, β, θ value and the reduction in pass of the reduction in pass of the second horizontal roller 21 and the second edger roll 22
The amount of metal that web 51 flows into the edge of a wing 52 can be adjusted, so that the edge of a wing 52 of blank 5 is after the metal of the inflow of web 51 is obtained
It is consistent with the extension of web 51 along its length.Further, since X passes universal mill 2 can guide the metal stream in web 51
The edge of a wing 52 of blank 5 is moved, therefore, the production system of H profile steel of the invention directly can prepare H types using the blank of rectangle
Steel, the lengthening coefficient rolled out needed for H profile steel is smaller, and blank 5 bites more preferable, and the drafts of single pass can be bigger,
The specification limit of product can be expanded, increase substantially yield.
In one embodiment, roughing mills 1 only can be met the requirements continuous casting billet milling into length-width ratio by two-roller mill 11
Centre blank 5 (such as rectangular billet), it is preferable that addition one with two-roller mill 11 cooperation tilting gear, with the company of upset
Strand.In alternative embodiments, the cooperation of two-roller mill 11 and vertical miller 12 can be passed through referring to figs. 1 to Fig. 3, roughing mills 1
Blank 5 by continuous casting billet milling into the satisfactory centre of length-width ratio, in order to the rolling of X passes universal mill 2.
In X passes universal mill 2, the length of two the second horizontal rollers 21 roll-in of web 51 to blank 5 alone is abdomen
0~75% (being preferably 40%~75%) of the whole roll-in length of plate 51, and just say, from length, deformed area S1 is
The 0~75% of whole deformation area (S1+S2).In terms of the pressure direction of the second horizontal roller 21, two the second horizontal rollers 21 are right alone
The drafts (reference picture 12, that is, deformed area S1 drafts) that the web 51 of blank 5 carries out roll-in formation is complete for web 51
0~90% (being preferably 40%~90%) of portion's drafts (reference picture 12, deformed area S1 and S2 overall reduction).
Reference picture 9, edging mill 3 include upper and lower two rolls, and the width on the edge of a wing 52 is adjusted by the edge of a wing 52 of roll-in blank 5
Degree.
The neutron stomach wall 611 of X passes universal mill 2 is with madial wall 62 with round-corner transition, the stomach wall 71 of H passes universal mill 4
With madial wall 72 with round-corner transition, and the radius of knuckle is less than between the stomach wall 71 and madial wall 72 of H passes universal mill 4
The radius of knuckle, preferably small 3mm~10mm between the sub- stomach wall 611 and madial wall 62 of X passes universal mill 2.
Two of each second horizontal roller 21 sub- stomach walls 611 are with round-corner transition, each second edger roll 22 in X passes universal mill 2
Two sub- lateral walls 631 with round-corner transition.
α value is smaller, and the amount of metal on the entrance of web 51 edge of a wing 52 of blank 5 is fewer.
In X passes universal mill 2, the roll neck of the second horizontal roller 21 is more than the roll neck of the second edger roll 22, and second is horizontal
Roller 21 is drive roll, and the second edger roll 22 is driven roll；In H passes universal mill 4, the roll neck of the 3rd horizontal roller 41 is more than the 3rd
The roll neck of edger roll 42, and the 3rd horizontal roller 41 is drive roll, the 3rd edger roll 42 is driven roll.
In an embodiment of the production system of the H profile steel according to the present invention, reference picture 1, X passes universal mill 2 is more
It is individual, and the multiple X passes universal mill 2 is divided to for two groups.Wherein, α=2 ° of each X passes universal mill 2 in first group~
10 °, β=95 °~105 °, θ=(180 ° of-β)~(195 ° of-β), it is preferable that β=96 °, θ<90°.Each X passes in second group
The α of universal mill 2 is less than the α of each X passes universal mill 2 in first group, and the α of each X passes universal mill 2 in second group
=1 °~6 °；The β of each X passes universal mill 2 in second group is less than the β of each X passes universal mill 2 in first group, and the
β=92 °~99 ° of each X passes universal mill 2 in two groups, preferably β=93 °；Each X passes universal mill 2 in second group
θ is more than the θ of each X passes universal mill 2 in first group, and the θ of each X passes universal mill 2 in second group=(180 ° of-β)
~(195 ° of-β), preferably θ<90°.Edging mill 3 is two.The blank 5 for the centre that roughing mills 1 roll out initially enters first group
X passes universal mill 2 rolled, the X passes universal mill 2 in first group carries out the rolling of multiple passages to blank 5；The
The blank 5 for the X-shaped that one group of the rolling of X passes universal mill 2 is formed enters a shaping of edging mill 3；X-shaped after the completion of shaping
The X passes universal mill 2 that blank 5 enters second group is rolled, and the X passes universal mill 2 in second group carries out more to blank 5
The rolling of individual passage；It is whole that the blank 5 of X-shaped after second group of X passes universal mill 2 rolls enters another edging mill 3
Shape；The blank 5 of X-shaped after the shaping of edging mill 3 enters H passes universal mill 4, and H passes universal mill 4 is by the blank 5 of X-shaped
It is rolled into H profile steel.
Preferably, described first group includes four X passes universal mills 2, and α, β and θ in each X passes universal mill 2
It is identical；Described second group includes two framves and includes two X passes universal mills 2, and α, β and θ phase in each X passes universal mill 2
Together.First group of four X passes universal mills 2 carry out the rolling of four passages to blank 5, will according to technique in each passage
Adjustment is asked to correspond to size, the second horizontal roller 21 of roll gap between the drafts of X passes universal mill 2, two the second horizontal rollers 21
The size of roll gap between the second edger roll 22.Similarly, second group of two X passes universal mills 2 carry out two roads to blank 5
Secondary rolling.
In another embodiment of the production system of the H profile steel according to the present invention, reference picture 2, X passes universal mill 2 is
Two.Wherein, α=2 °~10 ° of first X passes universal mill 2, β=95 °~105 °, θ=(180 ° of-β)~(195 °-
β).The α of second X passes universal mill 2 is less than the α of first X passes universal mill 2, and second X passes universal mill 2
α=1 °~6 °；The β of second X passes universal mill 2 is less than the β of first X passes universal mill 2, and second X pass
β=92 °~99 ° of universal mill 2；The θ of second X passes universal mill 2 is more than the θ of first X passes universal mill 2, and
The θ of second X passes universal mill 2=(180 ° of-β)~(195 ° of-β).Edging mill 3 is one.During roughing mills 1 roll out
Between blank 5 initially enter first X passes universal mill 2 and rolled, the blank 5 of the X-shaped formed after rolling enters edging
The shaping of machine 3, rolled after shaping into second X passes universal mill 2；After second X passes universal mill 2 rolls
The blank 5 of X-shaped reenter the shaping of edging mill 3, first X passes universal mill 2 is again introduced into after the completion of shaping and is rolled
After system, so circulation repeatedly, the blank 5 (by edging mill 3) of X-shaped enters H passes universal mill 4, and H passes universal mill 4 is by X-shaped
Blank 5 be rolled into H profile steel.During circulation, in rolling of first X passes universal mill 2 to 5 different passages of blank
Corresponding adjustment drafts, corresponding adjustment drafts in rolling of second X passes universal mill 2 to 5 different passages of blank.First
Individual X passes universal mill 2 also will accordingly adjust roller between two the second horizontal rollers 21 in the rolling to 5 different passages of blank
The size of roll gap between the size of seam, the second horizontal roller 21 and the second edger roll 22.Similarly, second X passes universal mill 2
It is such.
In the another embodiment of the production system of the H profile steel according to the present invention, reference picture 3, X passes universal mill 2 is
One, and α=1 °~6 ° of X passes universal mill 2, β=92 °~99 °, θ=(180 ° of-β)~(195 ° of-β).Edging mill 3 is
One.The blank 5 for the centre that roughing mills roll out initially enters X passes universal mill 2 and rolled, the X formed after rolling
The blank 5 of shape enters the shaping of edging mill 3, is rolled after shaping into H passes universal mill 4；By H passes universal mill 4
Blank 5 after rolling reenters the shaping of edging mill 3, and X passes universal mill 2 is again introduced into after the completion of shaping and is rolled, such as
After this circulation repeatedly, blank 5 is completed to deform and be rolled into H profile steel.During circulation, X passes universal mill 2 is to blank
The drafts of the roll-in of 5 different passages is different, and the drafts of roll-in of the H passes universal mill 4 to 5 different passages of blank is different.
During circulation, corresponding adjustment drafts, H passes are omnipotent in rolling of the X passes universal mill 2 to 5 different passages of blank
The corresponding adjustment drafts in the rolling to 5 different passages of blank of milling train 4.Similarly, X passes universal mill 2 exists to blank 5
Also size, the second horizontal roller 21 and of roll gap between two the second horizontal rollers 21 are accordingly adjusted in the rolling of different passages
The size of roll gap between two edger rolls 22.H passes universal mill 4 also will adjusted accordingly to blank 5 in the rolling of different passages
Between whole two the 3rd horizontal rollers 41 between the size of roll gap, the 3rd horizontal roller 41 and the 3rd edger roll 42 roll gap size.
Claims (10)
1. a kind of production system of H profile steel, it is characterised in that including roughing mills (1), X passes universal mill (2), edging mill
And H passes universal mill (4) (3)；
Roughing mills (1) include at least one two-roller mill (11), and each two-roller mill (11) includes two first level rollers
(111)；Or roughing mills (1) include at least one two-roller mill (11) and at least one vertical miller (12), each two rolling
Machine (11) includes two first level rollers (111), and each vertical miller (12) includes two the first edger rolls (121)；
Continuous casting billet for producing H profile steel forms middle blank (5) under roughing mills (1) rolling first；
X passes universal mill (2) includes two the second horizontal rollers (21) being oppositely arranged and is located at the second horizontal roller respectively
(21) two the second edger rolls (22) of both sides, and the axis of two the second horizontal rollers (21) and two the second edger rolls (22) is at one
In plane；X-shaped rolling hole (6), each second horizontal roller are formed between two the second horizontal rollers (21) and two the second edger rolls (22)
(21) roll surface contacted with the web (51) of blank (5) forms the stomach wall (61) of X-shaped rolling hole (6), and stomach wall (61) is rolled with X-shaped
The vertical centerline (V) in hole (6) is that boundary forms two on the symmetrical sub- stomach wall (611) of vertical centerline (V), sub- abdomen to both sides
The angle of wall (611) and horizontal plane is α；The two sides that second horizontal roller (21) contacts with the edge of a wing (52) of blank (5) form X-shaped
The madial wall (62) of hole (6) is rolled, the angle of madial wall (62) and horizontal plane is β；Each second edger roll (22) and the wing of blank (5)
The roll surface of edge (52) contact forms the lateral wall (63) of X-shaped rolling hole (6), and lateral wall (63) rolls the level of hole (6) with X-shaped
Center line (L) is that boundary forms two on horizontal center line (L) symmetrically sub- lateral wall (631), and sub- lateral wall to both sides
(631) angle with horizontal plane is θ；The blank (5) for the centre that roughing mills (1) roll out enters X passes universal mill (2)
When X-shaped rolls hole (6), two the second horizontal rollers (21) first carry out roll-in to the web (51) of blank (5), then the second horizontal roller
(21) and the second edger roll (22) while web (51) to blank (5) and the edge of a wing (52) carry out roll-in, so as to roll out the base of X-shaped
Expect (5)；
The blank (5) of X-shaped after X passes universal mill (2) rolling enters edging mill (3), base of the edging mill (3) to X-shaped
The edge of a wing (52) of material (5) is rolled, to adjust the width of the edge of a wing (52)；
H passes universal mill (4) includes two the 3rd horizontal rollers (41) being oppositely arranged and is located at the 3rd horizontal roller respectively
(41) two the 3rd edger rolls (42) of both sides, and the axis of two the 3rd horizontal rollers (41) and two the 3rd edger rolls (42) is at one
In plane；H-shaped rolling hole (7), each 3rd horizontal roller are formed between two the 3rd horizontal rollers (41) and two the 3rd edger rolls (42)
(41) roll surface contacted with the web (51) of blank (5) forms the stomach wall (71) of H-shaped rolling hole (7), stomach wall (71) and horizontal plane
It is parallel；The madial wall for two sides composition H-shaped rolling hole (7) that 3rd horizontal roller (41) contacts with the edge of a wing (52) of blank (5)
(72), the angle of madial wall (72) and horizontal plane is 90 °~91 °；Each 3rd edger roll (42) contacts with the edge of a wing (52) of blank (5)
Roll surface composition H-shaped rolling hole (7) lateral wall (73), and lateral wall (63) is perpendicular to horizontal plane；H passes universal mill (4)
Blank (5) rolling for the X-shaped after edging mill (3) is rolled is H profile steel.
2. the production system of H profile steel according to claim 1, it is characterised in that by adjusting X passes universal mill (2)
In the reduction in pass of the second horizontal roller (21) and the reduction in pass of the second edger roll (22) ensure two the second horizontal rollers
(21) roll-in first is carried out to the webs (51) of blank (5), then the second horizontal roller (21) and the second edger roll (22) while to blank
(5) web (51) and the edge of a wing (52) carries out roll-in.
3. the production system of H profile steel according to claim 1, it is characterised in that roughing mills (1) by continuous casting billet milling into
The blank (5) of the satisfactory centre of length-width ratio, in order to the rolling of X passes universal mill (2).
4. the production system of H profile steel according to claim 1, it is characterised in that
X passes universal mill (2) neutron stomach wall (611) is with madial wall (62) with round-corner transition, the abdomen of H passes universal mill (4)
Wall (71) and madial wall (72) are with round-corner transition, and transition between the stomach wall (71) and madial wall (72) of H passes universal mill (4)
The radius of fillet is less than the radius of knuckle between the sub- stomach wall (611) and madial wall (62) of X passes universal mill (2)；
Two of each second horizontal roller (21) sub- stomach walls (611) are with round-corner transition, each second edger roll in X passes universal mill (2)
(22) two sub- lateral walls (631) are with round-corner transition.
5. the production system of H profile steel according to claim 1, it is characterised in that
In X passes universal mill (2), two the second horizontal rollers (21) carry out roll-in shape to the web (51) of blank (5) alone
Into drafts be web (51) whole drafts 0~90%；
Two the second horizontal rollers (21) alone web (51) roll-in to blank (5) length for web (51) whole roll-in grow
The 0~75% of degree.
6. the production system of H profile steel according to claim 1, it is characterised in that
In X passes universal mill (2), the roll neck of the second horizontal roller (21) is more than the roll neck of the second edger roll (22), and the second water
Plain-barreled roll (21) is drive roll, and the second edger roll (22) is driven roll；
In H passes universal mill (4), the roll neck of the 3rd horizontal roller (41) is more than the roll neck of the 3rd edger roll (42), and the 3rd water
Plain-barreled roll (41) is drive roll, and the 3rd edger roll (42) is driven roll.
7. the production system of H profile steel according to claim 1, it is characterised in that
X passes universal mill (2) is multiple, and the multiple X passes universal mill (2) is divided into two groups；
Wherein, α=2 °~10 ° of each X passes universal mill (2) in first group, β=95 °~105 °, θ=(180 ° of-β)~
(195°-β)；
The α of each X passes universal mill (2) in second group is less than the α of each X passes universal mill (2) in first group, and second
α=1 °~6 ° of each X passes universal mill (2) in group；
The β of each X passes universal mill (2) in second group is less than the β of each X passes universal mill (2) in first group, and second
β=92 °~99 ° of each X passes universal mill (2) in group；
The θ of each X passes universal mill (2) in second group is more than the θ of each X passes universal mill (2) in first group, and second
The θ of each X passes universal mill (2) in group=(180 ° of-β)~(195 ° of-β)；
Edging mill (3) is two；
The X passes universal mill (2) that the blank (5) for the centre that roughing mills (1) roll out initially enters first group is rolled,
X passes universal mill (2) in first group carries out the rolling of multiple passages to blank (5)；First group of X pass universal mills
(2) blank (5) for the X-shaped that rolling is formed enters edging mill (3) shaping；The blank (5) of X-shaped after the completion of shaping enters the
Two groups of X passes universal mill (2) is rolled, and the X passes universal mill (2) in second group carries out multiple roads to blank (5)
Secondary rolling；The blank (5) of X-shaped after second group of X passes universal mill (2) rolling enters another edging mill (3)
Shaping；The blank (5) of X-shaped after edging mill (3) shaping enters H passes universal mill (4), and H passes universal mill (4) will
The blank (5) of X-shaped is rolled into H profile steel.
8. the production system of H profile steel according to claim 7, it is characterised in that
Described first group includes four X passes universal mills (2), and α, β and θ in each X passes universal mill (2) are identical；
Described second group includes two framves and includes two X passes universal mills (2), and α, β and θ in each X passes universal mill (2)
It is identical.
9. the production system of H profile steel according to claim 1, it is characterised in that
X passes universal mill (2) is two；
Wherein, α=2 °~10 ° of first X passes universal mill (2), β=95 °~105 °, θ=(180 ° of-β)~(195 °-
β)；
The α of second X passes universal mill (2) is less than the α of first X passes universal mill (2), and second X pass is omnipotent
α=1 °~6 ° of milling train (2)；
The β of second X passes universal mill (2) is less than the β of first X passes universal mill (2), and second X pass is omnipotent
β=92 °~99 ° of milling train (2)；
The θ of second X passes universal mill (2) is more than the θ of first X passes universal mill (2), and second X pass is omnipotent
The θ of milling train (2)=(180 ° of-β)~(195 ° of-β)；
Edging mill (3) is one；
The blank (5) for the centre that roughing mills (1) roll out initially enters first X passes universal mill (2) and rolled, and rolls
The blank (5) of the X-shaped formed after system enters edging mill (3) shaping, and second X passes universal mill (2) is entered after shaping and is carried out
Rolling；The blank (5) of X-shaped after second X passes universal mill (2) rolls reenters edging mill (3) shaping, shaping
After the completion of be again introduced into first X passes universal mill (2) and rolled, so after circulation repeatedly, the blank (5) of X-shaped enters H
The blank (5) of X-shaped is rolled into H profile steel by pass universal mill (4), H passes universal mill (4)；
During circulation, corresponding adjustment pressure in rolling of first X passes universal mill (2) to the different passages of blank (5)
Lower amount, corresponding adjustment drafts in rolling of second X passes universal mill (2) to the different passages of blank (5).
10. the production system of H profile steel according to claim 1, it is characterised in that
X passes universal mill (2) is one, and α=1 °~6 ° of X passes universal mill (2), β=92 °~99 °, θ=
(180 ° of-β)~(195 ° of-β)；
Edging mill (3) is one；
The blank (5) for the centre that roughing mills roll out initially enters X passes universal mill (2) and rolled, and is formed after rolling
The blank (5) of X-shaped enter edging mill (3) shaping, rolled after shaping into H passes universal mill (4)；By H passes
Blank (5) after universal mill (4) rolling reenters edging mill (3) shaping, is again introduced into that X passes are omnipotent to be rolled after the completion of shaping
Machine (2) is rolled, and so after circulation repeatedly, blank (5) is completed to deform and be rolled into H profile steel；
During circulation, corresponding adjustment drafts, H in rolling of the X passes universal mill (2) to the different passages of blank (5)
Corresponding adjustment drafts in rolling of the pass universal mill (4) to the different passages of blank (5).
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108620434A (en) * | 2018-04-24 | 2018-10-09 | 首钢长治钢铁有限公司 | A kind of X-shaped steel hot rolling molding process method |
| CN109290368A (en) * | 2018-09-27 | 2019-02-01 | 天津市中重科技工程有限公司 | A kind of large-scale and super large fashioned iron roughing area rolling mill practice |
| CN109622611A (en) * | 2018-12-20 | 2019-04-16 | 山东钢铁股份有限公司 | A kind of H profile steel with fore shaft and its milling method and rolling device |
| CN112246863A (en) * | 2020-08-25 | 2021-01-22 | 山东润金重工科技有限公司 | H-shaped steel processing method and device |
| CN112742862A (en) * | 2020-12-30 | 2021-05-04 | 日照钢铁控股集团有限公司 | Production process of large-size narrow-edge H-shaped steel |
| CN113732054A (en) * | 2021-09-02 | 2021-12-03 | 马鞍山钢铁股份有限公司 | UR pass of hot-rolled H-shaped steel and hot-rolled H-shaped steel rolling method |
| CN113857237A (en) * | 2021-07-29 | 2021-12-31 | 北京弥天科技有限公司 | Multistage rolling device of H shaped steel |
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| CN113857237B (en) * | 2021-07-29 | 2024-04-16 | 北京弥天科技有限公司 | H-shaped steel multistage rolling device |
| CN113732054A (en) * | 2021-09-02 | 2021-12-03 | 马鞍山钢铁股份有限公司 | UR pass of hot-rolled H-shaped steel and hot-rolled H-shaped steel rolling method |
| CN113732054B (en) * | 2021-09-02 | 2024-04-05 | 马鞍山钢铁股份有限公司 | UR hole type of hot-rolled H-shaped steel and rolling method of hot-rolled H-shaped steel |
| CN114888077A (en) * | 2022-04-29 | 2022-08-12 | 中冶华天工程技术有限公司 | Composite production process for efficiently producing heavy H-shaped steel and steel sheet pile |
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