CN103831295A - Rolling equipment of H-shaped steel with ribs and production method of H-shaped steel with ribs - Google Patents
Rolling equipment of H-shaped steel with ribs and production method of H-shaped steel with ribs Download PDFInfo
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- CN103831295A CN103831295A CN201410118152.1A CN201410118152A CN103831295A CN 103831295 A CN103831295 A CN 103831295A CN 201410118152 A CN201410118152 A CN 201410118152A CN 103831295 A CN103831295 A CN 103831295A
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Abstract
The invention discloses a rolling equipment of H-shaped steel with ribs and a production method of the H-shaped steel with the ribs. The rolling equipment comprises a rolling device and a rib rolling machine, wherein the rolling device is used for rolling an H-shaped steel body with the ribs, and the rib rolling machine is used for rolling upper ribs and lower ribs on the H-shaped steel body with the ribs; the rib rolling machine is provided with an upper horizontal rolling roller and a lower horizontal rolling roller, and the axis of the upper horizontal rolling roller and the axis of the lower horizontal rolling roller are parallel to each other and are symmetrical with respect to a web in the vertical direction. The rolling method comprises a BD cogging rolling technology and an all-powerful finish rolling technology, wherein rough rolling is conducted on a blank in the BD cogging rolling technology; in the all-powerful finish rolling technology, after rough rolling is conducted on the blank in the BD cogging rolling technology, the H-shaped steel body with the ribs is formed by conducting continuous rolling on the blank, and after the all-powerful finish rolling technology, the upper ribs and the lower ribs are rolled on the H-shaped steel body with the ribs by the rib rolling machine. According to the technical scheme, the production cycle of a steel structure production enterprise is shortened, manufacturing cost of the steel structure production enterprise is saved, the problem of welding cracks caused by rib welding is resolved, and stability and rigidity of the H-shaped steel with the ribs are enhanced.
Description
Technical field
The present invention relates to steel rolling and building field, particularly a kind of rolling equipment of H shaped steel with ribbing and production method thereof.
Background technology
Steel reinforced concrete structure can increase substantially component load-bearing ability, rigidity, thereby reduces the sectional dimension of member, has advantages of that fire protecting performance is good, structure partial and resistance to overturning is good, save steel.In addition, it possesses good ductility, can improve the anti-seismic performance of member, is particularly suitable for the places such as skyscraper that shockproof requirements is higher, subway platform, underpass.
Conventionally steel reinforced concrete structure is by forming at the inner embedding shaped steel of armored concrete or weldable steel member, join shaped steel kind have H shaped steel, I-steel, angle steel, channel-section steel etc.The crack expansion at random under the effect of load that adopts H shaped steel with ribbing can avoid shaped steel and concrete binding site to occur, and then affect the strength and stiffness of whole steel reinforced concrete structure, in prior art, by be welded to connect part (as peg, channel-section steel, curved muscle etc.) to form H shaped steel with ribbing on shape steel web inner side and the edge of a wing, adopt welding manner, can significantly increase labour intensity, process-cycle and manufacturing cost.
Summary of the invention
In order to address the above problem, one aspect of the present invention provides a kind of rolling equipment of H shaped steel with ribbing, and it comprises: comprise the rolling device for rolling H shaped steel with ribbing body, described H shaped steel body with ribbing comprises web, left wing's edge and right flank edge; Described web is connected with described left wing edge and described right flank edge between described left wing edge and described right flank edge and respectively, also comprises: have the rib milling train of upper horizontal roll and lower horizontal roll, for roll out rib and lower rib on described H shaped steel body with ribbing; The central shaft of described upper horizontal roll and the central shaft of described lower horizontal roll is parallel to each other and symmetrical up and down about described web; On described the side of horizontal roll with described on the edges and corners of the crossing formation in left side of horizontal roll be provided with described on the first upper groove pass of form fit of rib, on described the side of horizontal roll with described on the edges and corners of the crossing formation in right side of horizontal roll be provided with described on the second upper groove pass of form fit of rib, be provided with the first low groove pass with the form fit of described lower rib in the edges and corners of the crossing formation in the side of described lower horizontal roll and the left side of described lower horizontal roll; Be provided with the second low groove pass with the form fit of described lower rib in the edges and corners of the crossing formation in the side of described lower horizontal roll and the right side of described lower horizontal roll; Wherein, described H shaped steel with ribbing comprises described H shaped steel body with ribbing, described upper rib and described lower rib, described upper rib is formed in the upper angle being connected to form with described left wing edge and described right flank edge respectively by described web, described lower rib is formed in the lower angle being connected to form with described left wing edge and described right flank edge respectively by described web, and described upper angle and described lower angle lay respectively at the above and below of described web.
In rolling equipment as above, preferably, described the first upper groove pass and described the second upper groove pass are about the plane symmetry perpendicular to described web middle part; Described the first low groove pass and described the second low groove pass are about the plane symmetry perpendicular to described web middle part.
In rolling equipment as above, preferably, described the first upper groove pass and described the first low groove pass are symmetrical up and down about described web; Described the second upper groove pass and described the second low groove pass are symmetrical up and down about described web.
In rolling equipment as above, preferably, along the left side of described upper horizontal roll circumferentially, multiple the first upper groove passes have been spacedly distributed; Along the right side of described upper horizontal roll circumferentially, multiple the second upper groove passes have been spacedly distributed; Along the left side of described lower horizontal roll circumferentially, multiple the first low groove passes have been spacedly distributed; Along the right side of described lower horizontal roll circumferentially, multiple the second low groove passes have been spacedly distributed.
In rolling equipment as above, preferably, the quantity of described the first upper groove pass and described the second upper groove pass is two; The quantity of described the first low groove pass and described the second low groove pass is two.
In rolling equipment as above, preferably, from the notch of described the first upper groove pass to the direction of the bottom land of described the first upper groove pass, the attenuation gradually of the thickness of described the first upper groove pass; The shape of described the second upper groove pass, described the first low groove pass and described the second low groove pass is all identical with the shape of described the first upper groove pass.
In rolling equipment as above, preferably, described the first upper groove pass, described the second upper groove pass, described the first low groove pass and described the second low groove pass groove side separately intersect at bottom land separately.
In rolling equipment as above, preferably, described the first upper groove pass, described the second upper groove pass, described the first low groove pass and described the second low groove pass groove side are separately smooth surface.
In rolling equipment as above, preferably, described rolling device comprises:
Another aspect of the present invention provides a kind of production method of H shaped steel with ribbing, and it comprises: the BD split rolling method technique of blank being carried out to roughing; Blank after the roughing of described BD split rolling method technique is carried out to tandem rolling to roll out the omnipotent finish rolling rolling mill practice of H shaped steel body with ribbing, also comprise: after described omnipotent finish rolling rolling mill practice, adopt rib milling train to roll out rib and lower rib on described H shaped steel body with ribbing; Wherein, H shaped steel with ribbing comprises described H shaped steel body with ribbing, described upper rib and described lower rib, described upper rib is formed in the upper angle being connected to form with described top flange and described lower flange respectively by described web, described lower rib is formed in the lower angle being connected to form with described top flange and described lower flange respectively by described web, and described upper angle and described lower angle lay respectively at the above and below with described web; Described rib milling train is the rib milling train in aforementioned rolling equipment.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
Produce H shaped steel with ribbing by adopting the rolling equipment of H shaped steel with ribbing, the hot rolling that has realized H shaped steel with ribbing is one-body molded, significantly reduce welding job amount, improve manufacture efficiency, thereby significantly save production cycle and the manufacturing cost of Liao Gang structure manufacturing enterprise, the weld crack problem of simultaneously having avoided welding rib to bring, has improved stability and the rigidity of H shaped steel with ribbing, and then has improved rigidity and the bearing capacity of H type Steel concrete with ribbing combination.And manufacturing process is simple, reasonable in design, energy-conservation, environmental protection.
Accompanying drawing explanation
The generalized section of the H shaped steel a kind of with ribbing that Fig. 1 provides for the embodiment of the present invention one;
The schematic perspective view of a kind of upper horizontal roll that Fig. 2 provides for the embodiment of the present invention one;
A kind of rib milling train that Fig. 3 provides for the embodiment of the present invention one and the structural representation of H shaped steel body with ribbing.
The schematic perspective view of a kind of H shaped steel with ribbing that contains 1 pair of upper rib and 1 pair of lower rib that Fig. 4 provides for the embodiment of the present invention one.
Fig. 5 is the explosive decomposition schematic diagram (schematic diagram that the actual rib being integrated and H shaped steel body (comprising the edge of a wing, web) are peeled away) of Fig. 4.
A kind of upper rib V-shaped in the cross sectional shape of H shaped steel with ribbing or schematic perspective view of lower rib peeled off that Fig. 6 provides for the embodiment of the present invention one.
The generalized section of the H shaped steel a kind of with ribbing that Fig. 7 provides for the embodiment of the present invention one.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
In the time of construction of buildings, in order to improve the security performance of building, the steel reinforced concrete structures that adopt more, the structure forming at the inner embedding shaped steel of armored concrete, the kind of this shaped steel has H shaped steel etc., in order further to improve shaped steel and concrete conjugation, can adopt H shaped steel with ribbing, referring to Fig. 1, it comprises H shaped steel body with ribbing, upper rib 31 and lower rib 32, H shaped steel body with ribbing has a left side, right flank edge and web 1, web 1 respectively with a left side, right flank edge connects and is positioned at a left side, between right flank edge, so form the H shaped steel body with ribbing (being H shaped steel) that section is H.Above web 1, web 1 has been connected to form two upper angles 41 with left wing's edge 21 and right flank edge 22 respectively, is formed with rib 31 on arbitrary in angle 41; Below web 1, web 1 has been connected to form two lower angles 42 with left wing's edge 21 and right flank edge 22 respectively, is formed with lower rib 32 in angle once 42 in office.Preferably, the top of upper angle 41 and lower angle 42 is arc chord angle, i.e. R angle.Upper rib 31 and lower rib 32 all carry out hot rolling formation by being provided with the roll of the groove pass of upper rib 31 and lower rib 32 form fit on H shaped steel body with ribbing, be that H shaped steel body with ribbing and upper rib 31, lower rib 32 are integrally formed by hot rolling, so can significantly save production cycle and the manufacturing cost of Gang Gou manufacturing enterprise, avoid the weld crack problem of bringing because welding upper rib or lower rib simultaneously, improved stability and the rigidity of whole H shaped steel with ribbing.
In order to produce above-mentioned H shaped steel with ribbing, referring to Fig. 2-Fig. 3, the embodiment of the present invention one provides a kind of rolling equipment of H shaped steel with ribbing, comprises for the rolling device of rolling H shaped steel with ribbing body with for roll out the rib milling train of rib 31 and lower rib 32 on H shaped steel body with ribbing.Wherein, rolling device comprises: for obtaining the conticaster of blank; For the heating furnace that blank is heated; For the BD blooming mill that the blank after heating furnace heating is carried out to roughing; And for the blank after the roughing of BD blooming mill being carried out to tandem rolling to obtain the mm finishing mill unit of H shaped steel body with ribbing.
Particularly, rib milling train has upper horizontal roll 51 for rolling out upper rib 31 and for rolling out the lower horizontal roll 52 of lower rib 32.Referring to Fig. 2, corner angle 510 places in the side 512 of upper horizontal roll 51 and the crossing formation in left side 511 of upper horizontal roll 51 are provided with the first upper groove pass, edges and corners in the side 512 of upper horizontal roll 51 and the crossing formation in right side 513 of upper horizontal roll 51 are provided with the second upper groove pass, the first upper groove pass and the second upper groove pass all with the form fit of upper rib 31 so that roll out rib 31.Edges and corners in the side of lower horizontal roll 52 and the crossing formation in left side of lower horizontal roll 52 are provided with the first low groove pass, edges and corners in the side of lower horizontal roll 52 and the crossing formation in right side of lower horizontal roll 52 are provided with the second low groove pass, the first low groove pass and the second low groove pass all with the form fit of lower rib 32 so that roll out lower rib 32.When application, upper horizontal roll 51 and lower horizontal roll 52 lay respectively at the above and below of web 1, and upper horizontal roll 51 and lower horizontal roll 52 be parallel to each other with central shaft separately mode arrange, the left and right end face of upper horizontal roll 51 fits in respectively the left and right edge of a wing, and the left and right end face of lower horizontal roll 52 fits in respectively the left and right edge of a wing.For the R angle place at H shaped steel body with ribbing rolls out rib 31 or lower rib 32, the side of upper horizontal roll 51 and lower horizontal roll 52 is arc chord angle with the angle of its crossing formation of left and right end face separately, its radian is identical with the radian at R angle, so that the laminating at angle and R angle.
In order to make the bearing capacity after upper rib 31 that hot rolling goes out or lower rib 32 are combined with H shaped steel body with ribbing strong, the first upper groove pass and the second upper groove pass arrange in the mode of the plane symmetry about perpendicular to web 1 middle part; The first low groove pass and the second low groove pass arrange in the mode of the plane symmetry about perpendicular to web 1 middle part.Preferably, the first upper groove pass and the first low groove pass are to arrange about the laterally zygomorphic mode of web 1; The second upper groove pass and the second low groove pass are to arrange about the laterally zygomorphic mode of web 1, so make aforementioned four passes in a plane, further strengthened the bearing capacity after the upper rib 31 that rolls out through corresponding pass or lower rib 32 are combined with H shaped steel body with ribbing.
In order to improve H shaped steel with ribbing and concrete bond strength, along the length direction of left wing's edge 21 or right flank edge 22, multiple upper ribs 31 and multiple lower rib 32 are uniformly-spaced set, so along upper horizontal roll 51 left sides circumferentially, multiple the first upper groove passes have been spacedly distributed in the edges and corners of the side of upper horizontal roll 51 and the crossing formation in left side of upper horizontal roll 51, along week of upper horizontal roll 51 right sides upwards, multiple the second upper groove passes have been spacedly distributed in the edges and corners of the side of upper horizontal roll 51 and the crossing formation in right side of upper horizontal roll 51; Along lower horizontal roll 52 left sides circumferentially, multiple the first low groove passes have been spacedly distributed in the edges and corners of the side of lower horizontal roll 52 and the crossing formation in left side of lower horizontal roll 52, along lower horizontal roll 52 right sides circumferentially, multiple the second low groove passes have been spacedly distributed in the edges and corners of the side of lower horizontal roll 52 and the crossing formation in right side of lower horizontal roll 52.In other words, the circumference circle of above horizontal roll 51 and lower horizontal roll 52 is element length, at first-class N the first upper groove pass and N the second upper groove pass of being intervally distributed with of this element length, with N the first low groove pass and N the second low groove pass, on the length direction of left wing's edge 21 or right flank edge 22, the N rolling out through upper horizontal roll 51 and lower horizontal roll 52 upper rib 31 and N lower rib 32 are spacedly distributed, between the N going out through N the first upper groove groove rolling upper rib, be spaced apart upper horizontal roll left side circumference circle/N, between the N going out through N the second upper groove groove rolling upper rib, be spaced apart upper horizontal roll right side circumference circle/N, horizontal roll left side circumference circle/N under being spaced apart between the N going out through N the first low groove groove rolling lower rib, horizontal roll right side circumference circle/N under being spaced apart between the N going out through N the second low groove groove rolling lower rib, N is natural number.Referring to Fig. 2, show and on upper horizontal roll 51, be provided with 72,82, two the first upper groove passes 71,81 of 71,81, two the second upper groove passes of two the first upper groove passes and uniformly-spaced arrange, be spaced apart the half of left side girth; The upper rib 31 going out through the first upper groove groove rolling, on the length direction of left wing's edge 21, the interval between multiple upper ribs 31 is the half of left side girth.In like manner, the upper rib 31 going out through the second upper groove groove rolling, on the length direction of right flank edge 22, the interval between multiple upper ribs 31 is the half of right side girth.When be distributed with on one rib 31 or lower rib 32 on this element length time, on the length direction of left wing's edge 21 or right flank edge 22, the girth that is spaced apart left side or right side between multiple upper rib 31 or the lower rib 32 being spacedly distributed.In reality, spacing between multiple upper ribs 31 can be adjusted by the interval between multiple the first upper groove passes or the interval between multiple the second upper groove pass, and the spacing between multiple lower ribs 32 can be adjusted by the interval between multiple the first low groove passes or the interval between multiple the second low groove pass.
The shape of the first upper groove pass, the second upper groove pass, the first low groove pass and the second low groove pass is all identical, so makes the technique of rib in rolling or lower rib simple.Preferably, corresponding recesses pass at notch separately to the direction of bottom land separately, the attenuation gradually of thickness separately, wherein the thickness of each groove pass all refer to each groove pass at the length direction L(of H shaped steel with ribbing referring to Fig. 4) on size, in the direction that is perpendicular to paper of Fig. 3 middle finger.Further preferably, the side of groove separately of the first upper groove pass, the second upper groove pass, the first low groove pass and the second low groove pass intersects at bottom land separately.For the ease of hot rolling, the groove side of the first upper groove pass, the second upper groove pass, the first low groove pass and the second low groove pass is smooth surface.The shape of the first upper groove pass, the second upper groove pass, the first low groove pass and the second low groove pass is preferably V-type or U-shaped.In Fig. 2, each pass be shaped as V-type.
In order to understand better the shape of the above-mentioned each groove pass mentioned of explanation, can adopt the shape of the rib to utilizing the formation of groove pass to be assisted, describe with regard to the shape of rib below.
Fig. 4～6 have schematically shown shape and the structure of the rib forming on H shaped steel body with ribbing.Upper rib 31 and lower rib 32 are all formed at respectively in upper angle 41 and in lower angle 42 by the mode of hot rolling, go up rib 31 and lower rib 32 with by web 1, the H shaped steel body with ribbing that top flange 21 and lower flange 22 form is integrally formed, that is to say, web 1, top flange 21 and lower flange 22 form H shaped steel body with ribbing by hot rolling, then going up rib 31 and lower rib 32 all forms by being provided with the hot-rolled ribbed H shaped steel of the roll body of the groove pass of upper rib 31 and lower rib 32 form fit, and then form H shaped steel with ribbing, in other words, by web 1, top flange 21 and lower flange 22 form after H shaped steel body with ribbing, form upper rib 31 and lower rib 32 by hot rolling, be integrally formed H shaped steel with ribbing by hot rolling thus.In the time of construction, this H shaped steel with ribbing, owing to being to make rib and web, the edge of a wing form one by hot rolling, than by welding manner, rib being set in addition, has reduced labour intensity, has shortened construction period, reaches the object of energy-conserving and environment-protective.
Above rib 31 illustrates the shape of each rib for example below, with reference to H shaped steel body with ribbing shown in Fig. 7, upper rib 31 is formed on the position of the angle 41 in the upper left corner, upper rib extends to the direction away from upper angle top 410 from the top 410 of upper angle 41, the so-called direction away from upper angle top, the upper rib 31 that refers to the upper angle formation that is positioned at web 1 top, (is positioned at O from the top of upper angle to upper right
1a
1the direction of arrow and O
1b
1direction between the direction of arrow), right (O
1a
1the direction of arrow) or upper direction (O
1b
1the direction of arrow) extend.
The thickness of upper rib 31 from the top 410 of upper angle 41 to the direction attenuation gradually away from upper angle top 410; Wherein, the thickness of upper rib refers to the size of rib 31 on the length direction L of H shaped steel with ribbing, in the size in paper direction that is perpendicular to of Fig. 7 middle finger, take in the upper angle in Fig. 7, form rib on the thickness of rib describe as example, the surface joining with left wing edge 21 of upper rib 31, along the direction (O in Fig. 7 of the point joining away from left wing's edge and web
1b
1the direction of arrow), its thickness is more and more less; The face joining with web 1 of upper rib 31, along the direction (O in Fig. 7 of the point joining away from left wing's edge and web
1a
1the direction of arrow), its thickness is more and more less; The section of upper rib 31 (in Fig. 7 with perpendicular to paper direction and comprise top flange and the cross section of the point that web joins), (is positioned at O along the direction of the point joining away from left wing's edge and web
1a
1the direction of arrow and O
1b
1direction between the direction of arrow), its thickness is more and more less.The shape of the rib that other position forms is identical therewith, and just the direction of reduced thickness is different, repeats no longer one by one herein.Preferably, upper rib 31 or lower rib 32 are respectively perpendicular to web 1 and top flange 21 or lower flange 22.
About the annexation on rib and web and the left and right edge of a wing, above rib 31 is that example describes with the annexation of web 1 and left wing's edge 21.Go up for convenience of explanation the annexation of front surface and rear surface and web and left wing's edge of rib, illustrate to peel off in the upper rib of H shaped steel with ribbing, referring to Fig. 6, the shape of upper rib 31 is V-shaped, and it comprises front surface 312, rear surface (surface relative with front surface), upper face 314, lower surface 313, middle part surface 315.Middle part surface 315 correspondences of upper rib 31 fit in the top 410 of the upper angle that web 1 and left wing's edge 21 form, and the lower surface 313 of upper rib 31 is connected with web 2 one, and the upper face 314 of upper rib is connected with left wing edge 21 one.If the shape of upper rib is V-shaped, front surface 312 and rear surface away from the direction at angle top intersect at a line, in other embodiments, front surface and rear surface can plane or curved surfaces non-intersect and that join respectively on two ends of formation, the left side of Fig. 6 and web and the edge of a wing.In reality, because upper rib 31 is to form as one by hot rolling and web and the left and right edge of a wing, in actual product, upper face, lower surface and middle part surface are not the face of necessary being, be only used to be convenient to the annexation of rib and web 1 and left wing's edge is described and the upper rib in real upper rib and web and the left and right edge of a wing being integrated is peeled off out, and in the time that web is smooth transition fillet with the upper and lower angle of left and right edge of a wing formation respectively, the line of demarcation between upper face 314, lower surface 313 and middle part surface 315 just can not exist.About the description of the front surface of lower rib and the annexation on rear surface and web and the left and right edge of a wing can referring to the aforementioned front surface about upper rib and rear surface respectively with the description content of the annexation of web and left wing's edge, repeat no longer one by one herein.The beneficial effect that the embodiment of the present invention one is brought is as follows:
Produce H shaped steel with ribbing by adopting the rolling equipment of H shaped steel with ribbing, the hot rolling that has realized H shaped steel with ribbing is one-body molded, significantly reduce welding job amount, improve manufacture efficiency, thereby significantly save production cycle and the manufacturing cost of Liao Gang structure manufacturing enterprise, the weld crack problem of simultaneously having avoided welding rib to bring, has improved stability and the rigidity of H shaped steel with ribbing, and then has improved rigidity and the bearing capacity of H type Steel concrete with ribbing combination.And manufacturing process is simple, reasonable in design, energy-conservation, environmental protection.
Another embodiment of the present invention also provides a kind of production method of H shaped steel with ribbing, and the rolling equipment providing by above-mentioned enforcement one is produced.
Particularly, this production method comprises:
Blank is carried out to the BD split rolling method technique of roughing;
Wherein, before blank is carried out to roughing, also need to obtain by conticaster the blank continuous casting process of blank, then blank is entered to heating furnace heating, then the blank after heating is carried out to roughing by BD blooming mill, wherein, blank is preferably square billet or near-net-shape Hot Metal in Beam Blank.
Blank after the roughing of BD split rolling method technique is carried out to tandem rolling to roll out the omnipotent finish rolling rolling mill practice of H shaped steel body with ribbing;
Wherein, the blank after roughing becomes H shaped steel body with ribbing through mm finishing mill unit continuous rolling.
After omnipotent finish rolling rolling mill practice, adopt rib milling train on H shaped steel body with ribbing, to roll out rib and lower rib.
Wherein, the concrete structure of rib milling train can be referring to the description about rib milling train in embodiment mono-, repeat no longer one by one herein, when use, the upper horizontal roll of rib milling train and lower horizontal roll lay respectively at the upper of web, below, and the angle of upper horizontal roll is fitted with the upper angle of left wing's edge and right flank edge respectively, the angle of the lower horizontal roll of rib milling train is fitted with the lower angle of left wing's edge and right flank edge respectively, owing to being provided with the pass corresponding with upper rib and lower rib at the edge and corner position of upper horizontal roll and lower horizontal roll, so can roll out rib and lower rib with upper angle and lower angle that left wing's edge and right flank edge are connected to form respectively at web by rib milling train.In practice, the upper horizontal roll of rib milling train and lower horizontal roll can arrange separately, can also adopt upper horizontal roll and the lower horizontal roll of last group milling train in mm finishing mill unit.
In sum, the beneficial effect that another embodiment of the present invention is brought is as follows:
Produce H shaped steel with ribbing by adopting the rolling equipment of H shaped steel with ribbing, the hot rolling that has realized H shaped steel with ribbing is one-body molded, significantly reduce welding job amount, improve manufacture efficiency, thereby significantly save production cycle and the manufacturing cost of Liao Gang structure manufacturing enterprise, the weld crack problem of simultaneously having avoided welding rib to bring, has improved stability and the rigidity of H shaped steel with ribbing, and then has improved rigidity and the bearing capacity of H type Steel concrete with ribbing combination.And manufacturing process is simple, reasonable in design, energy-conservation, environmental protection.
As known by the technical knowledge, the present invention can realize by other the embodiment that does not depart from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, and is not only.Within the scope of the present invention all or be all included in the invention in the change being equal in scope of the present invention.
Claims (10)
1. a rolling equipment for H shaped steel with ribbing, comprises the rolling device for rolling H shaped steel with ribbing body, and described H shaped steel body with ribbing comprises web, left wing's edge and right flank edge; Described web is connected with described left wing edge and described right flank edge between described left wing edge and described right flank edge and respectively, it is characterized in that, described rolling equipment also comprises:
There is the rib milling train of upper horizontal roll and lower horizontal roll, for roll out rib and lower rib on described H shaped steel body with ribbing;
The central shaft of described upper horizontal roll and the central shaft of described lower horizontal roll is parallel to each other and symmetrical up and down about described web;
On described the side of horizontal roll with described on the edges and corners of the crossing formation in left side of horizontal roll be provided with described on the first upper groove pass of form fit of rib,
On described the side of horizontal roll with described on the edges and corners of the crossing formation in right side of horizontal roll be provided with described on the second upper groove pass of form fit of rib,
Be provided with the first low groove pass with the form fit of described lower rib in the edges and corners of the crossing formation in the side of described lower horizontal roll and the left side of described lower horizontal roll;
Be provided with the second low groove pass with the form fit of described lower rib in the edges and corners of the crossing formation in the side of described lower horizontal roll and the right side of described lower horizontal roll;
Wherein, described H shaped steel with ribbing comprises described H shaped steel body with ribbing, described upper rib and described lower rib, described upper rib is formed in the upper angle being connected to form with described left wing edge and described right flank edge respectively by described web, described lower rib is formed in the lower angle being connected to form with described left wing edge and described right flank edge respectively by described web, and described upper angle and described lower angle lay respectively at the above and below of described web.
2. rolling equipment according to claim 1, is characterized in that, described the first upper groove pass and described the second upper groove pass are about the plane symmetry perpendicular to described web middle part;
Described the first low groove pass and described the second low groove pass are about the plane symmetry perpendicular to described web middle part.
3. rolling equipment according to claim 2, is characterized in that, described the first upper groove pass and described the first low groove pass are symmetrical up and down about described web;
Described the second upper groove pass and described the second low groove pass are symmetrical up and down about described web.
4. rolling equipment according to claim 3, is characterized in that, along the left side of described upper horizontal roll circumferentially, multiple the first upper groove passes have been spacedly distributed;
Along the right side of described upper horizontal roll circumferentially, multiple the second upper groove passes have been spacedly distributed;
Along the left side of described lower horizontal roll circumferentially, multiple the first low groove passes have been spacedly distributed;
Along the right side of described lower horizontal roll circumferentially, multiple the second low groove passes have been spacedly distributed.
5. rolling equipment according to claim 4, is characterized in that, the quantity of described the first upper groove pass and described the second upper groove pass is two;
The quantity of described the first low groove pass and described the second low groove pass is two.
6. rolling equipment according to claim 1, is characterized in that,
In the direction of the bottom land from the notch of described the first upper groove pass to described the first upper groove pass, the attenuation gradually of the thickness of described the first upper groove pass;
The shape of described the second upper groove pass, described the first low groove pass and described the second low groove pass is all identical with the shape of described the first upper groove pass.
7. rolling equipment according to claim 6, is characterized in that, described the first upper groove pass, described the second upper groove pass, described the first low groove pass and described the second low groove pass groove side separately intersect at bottom land separately.
8. rolling equipment according to claim 7, is characterized in that, described the first upper groove pass, described the second upper groove pass, described the first low groove pass and described the second low groove pass groove side are separately smooth surface.
9. will remove the rolling equipment described in 1 according to right, it is characterized in that, described rolling device comprises:
Conticaster, for obtaining blank;
Heating furnace, for heating described blank;
BD blooming mill, for carrying out roughing to the blank after described heating furnace heating; And
Mm finishing mill unit, for carrying out tandem rolling to obtain described H shaped steel body with ribbing to the blank after the roughing of described BD blooming mill.
10. a production method for H shaped steel with ribbing, comprising: the BD split rolling method technique of blank being carried out to roughing; Blank after the roughing of described BD split rolling method technique is carried out to tandem rolling to roll out the omnipotent finish rolling rolling mill practice of H shaped steel body with ribbing, it is characterized in that, described production method also comprises: after described omnipotent finish rolling rolling mill practice, adopt rib milling train to roll out rib and lower rib on described H shaped steel body with ribbing;
Wherein, H shaped steel with ribbing comprises described H shaped steel body with ribbing, described upper rib and described lower rib, described upper rib is formed in the upper angle being connected to form with described top flange and described lower flange respectively by described web, described lower rib is formed in the lower angle being connected to form with described top flange and described lower flange respectively by described web, and described upper angle and described lower angle lay respectively at the above and below with described web;
Described rib milling train is the rib milling train in rolling equipment described in arbitrary claim in claim 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410118152.1A CN103831295B (en) | 2014-03-27 | 2014-03-27 | The rolling equipment of H profile steel with ribbing and production method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105197783A (en) * | 2015-10-27 | 2015-12-30 | 尤洛卡矿业安全工程股份有限公司 | Embossed rail and manufacturing method thereof |
| CN110257711A (en) * | 2019-07-05 | 2019-09-20 | 常州市中宇合金轧辊厂 | A kind of shape rolling mill S rack nickel molybdenum vanadium alloy ferrosteel roll |
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| JPS5935802A (en) * | 1982-08-25 | 1984-02-27 | Kawasaki Steel Corp | Production of rough shape billet for h-beam using flat billet as blank material |
| JPH01143701A (en) * | 1987-11-27 | 1989-06-06 | Kawasaki Steel Corp | Preforming method for beam blank |
| JPH0332403A (en) * | 1989-06-28 | 1991-02-13 | Sumitomo Metal Ind Ltd | Production of ribbed steel plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105197783A (en) * | 2015-10-27 | 2015-12-30 | 尤洛卡矿业安全工程股份有限公司 | Embossed rail and manufacturing method thereof |
| CN110257711A (en) * | 2019-07-05 | 2019-09-20 | 常州市中宇合金轧辊厂 | A kind of shape rolling mill S rack nickel molybdenum vanadium alloy ferrosteel roll |
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| Publication number | Publication date |
|---|---|
| CN103831295B (en) | 2015-11-18 |
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