CN205173961U - Parallel leg channel -section steel of super large specification - Google Patents
Parallel leg channel -section steel of super large specification Download PDFInfo
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- CN205173961U CN205173961U CN201520995742.2U CN201520995742U CN205173961U CN 205173961 U CN205173961 U CN 205173961U CN 201520995742 U CN201520995742 U CN 201520995742U CN 205173961 U CN205173961 U CN 205173961U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 159
- 239000010959 steel Substances 0.000 title claims abstract description 159
- 239000000758 substrate Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 23
- 238000005098 hot rolling Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- 238000005096 rolling process Methods 0.000 description 12
- 238000003801 milling Methods 0.000 description 11
- 238000007493 shaping process Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000013003 hot bending Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000007730 finishing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 206010018265 Gigantism Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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Abstract
The utility model provides a parallel leg channel -section steel of super large specification, wherein, parallel leg channel -section steel includes a waist and follow perpendicular two legs that extend of both ends syntropy of waist, waist and two leg integrated into one piece, two leg parallel arrangement. And simultaneously, long 300 -1000mm, the wide 150 -500mm of leg of being of waist of parallel leg channel -section steel, the thickness 5 -50mm of waist. The utility model provides an in the parallel leg channel -section steel, article two, the leg is be parallel to each other and perpendicular with the waist, therefore, can satisfy in the building requirement to the tensile strength homogeneity, simultaneously, because parallel leg channel -section steel has a great dimensions, therefore, more be suitable for the dimensional requirement as box steel column substrate.
Description
Technical field
The utility model relates to steel field, in particular to a kind of super large-scale parallel arms channel-section steel.
Background technique
Channel-section steel belongs to a kind of construction and uses and machinery structural carbon steel, and be the shaped steel steel of compound section, its section configuration is groove type.Channel-section steel is mainly used in building structure, curtain wall engineering, machinery and Rail car manufacture etc.In actual use, require that it has good welding, rivet performance and comprehensive mechanical performance.The raw material steel billet producing channel-section steel is generally carbon junction steel or the low alloy steel steel billet that carbon content is no more than 0.25%.Finished product channel-section steel is through heat processing and forming, normalizing or hot-rolled state delivery.Present stage, domestic is be main channel-section steel for building with battered leg channel-section steel.
But the research and development in present stage to channel-section steel, the research and development being especially applicable to large gauge architecture production channel-section steel used are also nowhere near.On the one hand, China not yet formulates production and the use standard of this kind of channel-section steel; On the other hand, the battered leg channel-section steel of current market circulation also can not meet the usability requirement of construction steel structure: one is the requirement that battered leg can not meet tensile strength uniformity; Two is size requirements that existing channel-section steel specification can not reach as steel box column base material far away.Such as, the maximum battered leg channel-section steel size of China is only 400*102*12.5mm, and present stage, the steel structure requirement specification in building is at the box column of (300 – 1000) * (150 – 500) more than mm, and existing battered leg channel-section steel obviously cannot meet the actual requirement of building.Although by being carried out by small dimension parallel arms channel-section steel welding the large gauge box column that can obtain, the mechanical property of this box column cannot meet the demand of building at all.
In view of this, special proposition the utility model.
Model utility content
The utility model aims to provide a kind of super large-scale parallel arms channel-section steel, parallel arms channel-section steel provided by the utility model (also can claim straight leg channel-section steel), it is battered leg (the inner side gradient 8%-17%) channel-section steel of relative China existing market manufacture and usage, namely the topmost feature of described parallel arms channel-section steel is that channel-section steel two inboard leg is substantially parallel with outside, thus the mechanical property of the battered leg channel-section steel existed in solution prior art and size cannot meet the technical problem of building actual demand.
Parallel arms channel-section steel provided by the utility model, parallel arms channel-section steel comprises a waist and vertically extending in the same way two legs from the two ends of described waist; Described waist and two legs one-body molded, two described legs be arranged in parallel; Wherein, the waist of described parallel arms channel-section steel is long is 300-1000mm; The width of the leg of described parallel arms channel-section steel is 150-500mm; The thickness of described parallel arms channel-section steel waist is 5-50mm.
The utility model parallel arms channel-section steel required for protection, because its two legs is parallel to each other and vertical with waist, thus, can meet the requirement to tensile strength uniformity in building; Meanwhile, because parallel arms channel-section steel described in the utility model has larger Dimensions, thus, the size requirement as steel box column base material is more suitable for.
Optionally, the waist length of described parallel arms channel-section steel can be 300 – 1000mm; Preferably, the waist length of described parallel arms channel-section steel can be 300 – 1000mm; Preferred, the waist length of described parallel arms channel-section steel can be 600-1000mm, such as but not limited to 600mm, 650mm, 700mm, 750mm, 800mm, 850mm, 900,950,1000mm.
Optionally, the leg of described parallel arms channel-section steel is wide can be 150 – 500mm; Preferably, the leg of described parallel arms channel-section steel is wide can be 150 – 500mm, such as but not limited to 150,200,250,300,350mm, 400mm, 450,500mm.Optionally, the thickness of described parallel arms channel-section steel waist can be 5-50mm; Preferably, the thickness of described parallel arms channel-section steel waist can be 6 – 50mm; Preferred, the thickness of described parallel arms channel-section steel waist can be 6,8,10,12,14,16,18,20 – 50mm; Especially, the thickness of described parallel arms channel-section steel waist can be 25 – 50mm, such as but not limited to 30mm, 35mm, 40mm.
Optionally, the thickness of described parallel arms channel-section steel leg and the thickness of waist can be identical or different.Optionally, in parallel arms channel-section steel described in the utility model, the ratio of the described length of parallel arms channel-section steel waist and the width of leg can be 1:5-5:1; Preferably, the ratio of the described length of parallel arms channel-section steel waist and the width of leg can be 1:3-3:1; More particularly, the ratio of the described length of parallel arms channel-section steel waist and the width of leg can be 2:1.
Optionally, in each described parallel arms channel-section steel, the outside of the connection part of described waist and described leg is right angle, and namely in described parallel arms channel-section steel, its exterior angle is right angle.
Optionally, in each described parallel arms channel-section steel, the inner side of the connection part of described waist and described leg is arch, and namely in described parallel arms channel-section steel, its interior angle is R angle.
Optionally, in described parallel arms channel-section steel, two ends of two legs are all in inclined-plane, and described inclined-plane slope angle is 45 degree; Meanwhile, the inclined-plane of described two ends is all outside described parallel arms channel-section steel groove.
In the utility model, by the inclined-plane slope angle of described parallel arms channel-section steel is set to 45 degree, and described inclined-plane described all toward the outer side parallel arms channel-section steel groove is arranged, thus make when the end of parallel arms channel-section steel two legs described in the application of two same sizes correspondence is placed, the breach of one 90 degree can be formed in the connecting end portion of two parallel arms channel-section steels, and can further in the indentation, there of described formation, two parallel arms channel-section steels be welded, thus obtain cross section be rectangle or square and two symmetrically arranged box columns of weld seam.
This large gauge parallel arms channel-section steel that the utility model provides, due to it, to have waist long: 300 – 1000mm, leg are wide: the oversize specification (size much larger than the existing maximum battered leg channel-section steel 400*102*12.5mm of China) of 150 – 500mm, thickness 5 – 50mm, therefore, more applicable as Constructional Steel (GS General Specification is at 300 – 1000*150 – 500mm).
Meanwhile, this parallel arms channel-section steel that the present embodiment provides, because the outside of the connection part of its waist and leg is right angle, inner side is R angle (arch); Like this, make parallel arms channel-section steel seem attractive in appearance, and be conducive to follow-up finishing process, in addition, the end of two legs all (outwards becomes chamfering bevel design) in inclined-plane, further facilitates welding with the operating procedure preparing corresponding large gauge box column further.
Meanwhile, still further provides the method processed of described parallel arms channel-section steel in the utility model, namely adopt hot rolling--the new process of cold (heat) curved combination.Adopt this technique to prepare parallel arms channel-section steel described in the utility model to have the following advantages: the quantity that milling train in existing production line 1) can be reduced, and jumbo investment can be saved, make to vacate more milling trains under the arrangement of equal milling train quantity and expand and produce more large gauge and become possibility; 2) when multi items Section Steel Production, the layout of steel rolling production-line can not substantially be affected.Hot rolling of the prior art-hot bending tandem rolling K1, K2, K3 unit bears hot bending shaping feature due to needs, therefore require that the spacing of these units wants different from the spacing between conventional power unit, otherwise may occur that and the structure of the parallel arms channel-section steel produced is asymmetric because two coxostermums are held up and are directly out of shape excessive by force.3) difficult problem for the large and required precision harshness of guide unit design difficulty in existing steel rolling technology can be avoided.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is mode of executions more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The parallel arms channel-section steel schematic diagram that Fig. 1 provides for the utility model embodiment;
101-waist; 102-leg;
The waist length of A-parallel arms channel-section steel; B-parallel arms channel-section steel leg width; C-parallel arms channel-section steel waist thickness; D-parallel arms channel-section steel leg length; E-parallel arms channel-section steel leg thickness; R-parallel arms channel-section steel interior angle, it is R angle; P-parallel arms channel-section steel end.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly; clear, complete description is carried out below by the technical solution of the utility model; based on the embodiment in the utility model; other mode of executions all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope that the utility model is protected.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Embodiment 1
Please refer to Fig. 1, the present embodiment provides a kind of parallel arms channel-section steel, comprising: a waist 101 and from vertically extending in the same way two legs 102 in described waist 101 two ends; Described waist 101 and two described legs 102 one-body molded, and two described legs 102 be arranged in parallel.In described parallel arms channel-section steel, the outside of the connection part of waist 101 and leg 102 is right angle (namely exterior angle is right angle), and inner side R is arch (namely interior angle is R angle); And the end P of two legs is all in inclined-plane.
This parallel arms channel-section steel that the embodiment of the present application provides, because its two legs is parallel to each other and vertical with waist, thus, can meet the requirement to tensile strength uniformity in building; Meanwhile, because parallel arms channel-section steel described in the utility model has larger Dimensions, thus, the size requirement as steel box column base material is more suitable for.Same, because the outside of the connection part of its waist and leg is right angle, inner side is arch, box column is so just made to seem attractive in appearance, and be conducive to follow-up finishing process, in addition, the Jun Cheng inclined-plane, end (outwards becoming chamfering bevel design) of two legs, further facilitates the operating procedure of welding.
In addition, practical hot rolling technique is produced to the operation of the parallel arms channel-section steel of the utility model embodiment, the utility model gives following introduction:
Possessor proposed the concept of parallel arms channel-section steel to the greatest extent, if only from improving the angle of channel-section steel battered leg and existing common channel-section steel analogy, parallel arms channel-section steel does not almost produce necessary and actual use value, and existing hot rolling mill also can produce small dimension hot rolling parallel arms channel-section steel.
But in fact, even if according to the existing maximum device of China and process layout and conventional art, also can only produce now the parallel arms channel-section steel of below 300*150*10mm specification, and this is determined by the roll surface width of milling train and roller diameter.Although generally speaking, can by simply increasing the diameter of milling train roll surface width and roll to manufacture large-scale parallel arms channel-section steel.But, even if it should be noted that the parallel arms channel-section steel (i.e. the parallel arms channel-section steel of the long 500mm of waist) being only and having obtained cutting 500mm specification, just need to use more than diameter 3m to obtain roll, in general industrialized production, use the roll of scale like this, this is obvious and unrealistic; Meanwhile, such device, method preparation is adopted to carry out large-scale parallel arms channel-section steel, obviously also uneconomical.
Along with the market demand is to the continuous the Enlargement Tendency of product, the hot rolling parallel arms channel-section steel product producing super large-scale becomes a difficult problem of iron and steel calendering industry already, particularly will try one's best and improve a little or additional associated equipment Production Line Configured on existing, the parallel arms channel-section steel using brand-new technique thinking to produce large-scale specification is the task of top priority.
Preparation method's step of the channel-section steel of parallel arms described in the utility model comprises: hot rolling deformation is prefabricated, cold (heat) curved shaping aligning.And adopt the rolling mode just changing traditional shaped steel one-step building in this way, be divided into secondary to become a useful person process of producing product, wherein first time is that hot rolling deformation is prefabricated, and first time is clod wash shaping aligning.More concrete, adopt suitable pass process engineering exactly, first carry out breaking down, finish rolling, key will carry out suitable distortion rolling to rolled piece, again through the intensive processing of custom-designed clod wash shaping aligning unit, finally prepare the parallel arms channel-section steel product of target.
In the utility model, by adopting hot-rolled production process, can solve and realize obtaining the different parallel arms channel-section steel of waist leg thickness and obtaining the technical problem of bight switching performance (i.e. 90 degree, exterior angle and interior angle radian) parallel arms channel-section steel.And these technical problems cannot be realized by cold bending equipment; Meanwhile, adopting clod wash shaping production technology to solve the large-scale specification of hot rolling to a milling equipment limit capacity challenge difficult problem, is also that equipment of hot rolling institute is unapproachable.In the utility model, by by both production Technology ripe separately, and according to parallel arms channel-section steel characteristic, display one's respective advantages cleverly, thus prepared there is super large-scale parallel arms channel-section steel.
Concrete, the preparation method of parallel arms channel-section steel described in the utility model specifically can be as follows:
1. hot rolling deformation is prefabricated.In this step, mainly play the advantage of hot rolling, its key carries out emphasis rolling to two right angle portions, and be secondly design long (wide) degree obtaining parallel arms channel-section steel, finish rolling rolled piece is semi-finished product.By the means of being out of shape in advance rolled piece, change the relative position of rolled piece cutting in roll, object is to effectively reduce the roller groove degree of depth and then preventing roll breakage, avoids along with specification maximization and then the tendency causing equipment enlarging and investment gigantism.
2. clod wash adopts shaping aligning mechanism.In this step, mainly play the advantage of clod wash, key carries out regenerative ratio to the parallel arms channel-section steel semi-finished product be out of shape through finish rolling, through the shaping straightening machine of Specialty Design, first shaping is carried out, the waist (be generally arc) of emphasis to deformation of rolled wire carries out progressively straight, aligns subsequently to whole product comprehensively.
3. adopt hot rolling--hot bending production technology.In this step, adopt hot rolling-cold bending process technology production method substantially can the manufacture of full coverage all specification parallel arms channel-section steel, certainly, the parallel arms channel-section steel of respective specification also can hot rolling--hot bending production Technology be produced.Why super large-scale parallel arms channel-section steel selects clod wash shaping production technology mainly to consider the need of production of serial super large-scale, respective specification also can consider hot rolling reluctantly--hot bending production technology, namely directly in continuous rolling process, first hot rolling is out of shape, use the directly shaping again of finish rolling milling train, this key depends on the quantity of the size that milling train is equipped and hot rolling mill.
Meanwhile, adopt hot rolling-cold bending process method also based on following consideration: selecting of milling train quantity 1) can be reduced and save jumbo investment, under the arrangement of equal milling train quantity, vacate more milling trains expand the possibility of producing more large gauge; 2) when multi items Section Steel Production, the layout of steel rolling production-line is substantially unaffected.3) guide unit design difficulty and required precision is reduced.
Further, this parallel arms channel-section steel that the utility model embodiment provides, can also further in order to prepare corresponding large-scale box type post.When producing large-scale box type post owing to adopting parallel arms channel-section steel described in the utility model, only need corresponding two legs to weld, therefore only need two weld seams, so just can avoid four welded corner joints adopted in existing large-scale box type Column preparation; Meanwhile, owing to using parallel arms channel-section steel, maneuverable flush joint just can be adopted to weld.Same, because parallel arms channel-section steel directly can be preset to groove at weld, therefore simplify welding production technology.
Prepare box column by parallel arms channel-section steel described in the utility model and have following advantage: (1) output is large: the output of hot rolling parallel arms channel-section steel is relative to clod wash (small dimension) and welding product, there is the advantage of growth at double, workshop prepackage and industrialization running can be adapted to completely.(2) cost is low: no matter prior art is clod wash (can produce small-sized square tube) or welding, all needs to do raw material by Wide and Thick Slab, and the raw material sources of direct hot rolling is extensive, reduces product cost.(3) quality is good: because the stressing conditions of high building structure is complicated, requirement has the features such as safety reliability is high, long service life, anti-seismic performance are good, therefore, for Steels for High Rise Buildings, except possessing common engineering structure to except the high strength of steel requirement, high tenacity, formability and weldability, also require that there are low yield strength ratio, high resistance lamellar tearing ability and fire performance etc., and the hot-rolled production process (the parallel arms channel-section steel of production) that the utility model adopts meets above-mentioned requirements preferably.(4) profile is good: because the butt welding of parallel arms channel-section steel is shaping, four angles are right angles, and interior angle is arch (curved arc shape), is conducive to later stage finishing process.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristics; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment's technological scheme of the utility model.
Claims (10)
1. a super large-scale parallel arms channel-section steel, is characterized in that, described parallel arms channel-section steel comprises a waist and vertically extending in the same way two legs from the two ends of described waist; Described waist and two legs one-body molded, two described legs be arranged in parallel;
Wherein, the waist of described parallel arms channel-section steel is long is 300-1000mm; The width of the leg of described parallel arms channel-section steel is 150-500mm; The thickness of described parallel arms channel-section steel waist is 5-50mm.
2. parallel arms channel-section steel according to claim 1, is characterized in that, the waist of described parallel arms channel-section steel is long is 300-1000mm.
3. parallel arms channel-section steel according to claim 2, is characterized in that, the waist of described parallel arms channel-section steel is long is 600-1000mm.
4. parallel arms channel-section steel according to claim 1, is characterized in that, the width of the leg of described parallel arms channel-section steel is 150 – 500mm.
5. parallel arms channel-section steel according to claim 4, is characterized in that, the width of the leg of described parallel arms channel-section steel is 300 – 500mm.
6. parallel arms channel-section steel according to claim 1, is characterized in that, the thickness of described parallel arms channel-section steel waist is 6-50mm.
7. parallel arms channel-section steel according to claim 1, is characterized in that, the described length of parallel arms channel-section steel waist and the width ratio of leg are 1:5-5:1.
8. parallel arms channel-section steel according to claim 1, is characterized in that, the described length of parallel arms channel-section steel waist and the width ratio of leg are 2:1.
9. parallel arms channel-section steel according to claim 1, is characterized in that, in described parallel arms channel-section steel, two ends of two legs are all in inclined-plane, and described inclined-plane slope angle is 45 degree;
Wherein, the inclined-plane of described two ends is all towards the outside of described parallel arms channel-section steel groove.
10. parallel arms channel-section steel according to claim 1, is characterized in that, the waist of described parallel arms channel-section steel and the exterior angle of two legs joint are 90 degree, and interior angle is R angle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520995742.2U CN205173961U (en) | 2015-12-04 | 2015-12-04 | Parallel leg channel -section steel of super large specification |
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| CN201520995742.2U CN205173961U (en) | 2015-12-04 | 2015-12-04 | Parallel leg channel -section steel of super large specification |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107184124A (en) * | 2017-06-27 | 2017-09-22 | 广州市泰盛卫浴科技有限公司 | A kind of cystosepiment and bathtub cover |
| CN108160705A (en) * | 2017-11-17 | 2018-06-15 | 山东钢铁股份有限公司 | A kind of parallel wide width wing edge channel steel and its production method |
| CN113405013A (en) * | 2021-06-17 | 2021-09-17 | 马鞍山钢铁股份有限公司 | Hot-rolled parallel leg channel steel and production method thereof |
-
2015
- 2015-12-04 CN CN201520995742.2U patent/CN205173961U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107184124A (en) * | 2017-06-27 | 2017-09-22 | 广州市泰盛卫浴科技有限公司 | A kind of cystosepiment and bathtub cover |
| CN108160705A (en) * | 2017-11-17 | 2018-06-15 | 山东钢铁股份有限公司 | A kind of parallel wide width wing edge channel steel and its production method |
| CN108160705B (en) * | 2017-11-17 | 2019-06-11 | 山东钢铁股份有限公司 | A kind of parallel wide width wing edge channel steel and its production method |
| CN113405013A (en) * | 2021-06-17 | 2021-09-17 | 马鞍山钢铁股份有限公司 | Hot-rolled parallel leg channel steel and production method thereof |
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Granted publication date: 20160420 |