CN102527714A - Rolling method for T-shaped elevator guide rail and rolling pass system - Google Patents
Rolling method for T-shaped elevator guide rail and rolling pass system Download PDFInfo
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- CN102527714A CN102527714A CN2011104610347A CN201110461034A CN102527714A CN 102527714 A CN102527714 A CN 102527714A CN 2011104610347 A CN2011104610347 A CN 2011104610347A CN 201110461034 A CN201110461034 A CN 201110461034A CN 102527714 A CN102527714 A CN 102527714A
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Abstract
The invention discloses a rolling method for a T-shaped elevator guide rail and a rolling pass system. The rolling method comprises independent rolling of a rail head, a rail web and a rail base of the T-shaped guide rail, so that in the rolling process, the forming of the guide base does not only depend on processing of the side wall of a pass. The invention further provides the rolling pass system for implementing the method, wherein a finish rolling pass comprises a horizontal rolling pass for rolling the guide base and a vertical rolling pass for rolling the guide head. By adoption of the set of rolling pass system, a horizontal-vertical alternate reversing rolling is performed to a rolled piece, so that the potential hazard of curling around a roll in the rolling process is eliminated, and steel raw material is saved; besides, by adoption of the pass system, a blooming rolling pass can be shared by the rolling pass systems of T-shaped guide rails of various specifications, so that the consumption of rolls is greatly reduced, the workload of roll replacement is reduced, and the whole rolling process is simplified.
Description
Technical field
The present invention relates to a kind of milling method and rolling groove system, relate in particular to a kind of cross section and be the milling method and the employed rolling groove system of the cage guide of inverted T shape, belong to metal rolled technical field.
Background technology
The rolling gap of metal stock being passed through a pair of rotary roller that is meant, metal stock reduces because of the compression that receives roll makes material section, a kind of pressure processing method that length increases.Wherein,, assemble up the groove of two or more rolls accordingly, can form pass through on roll, processing groove.In the operation of rolling, rolled piece makes the workpiece basal area from large to small through a series of passes, and length is elongated by weak point, thereby reaches desired shape and size.
Elevator T type guide rail as shown in Figure 1 comprises rail head 1, the web of the rail 2 and the flange of rail 3, and wherein, rail head 1 connects the web of the rail 2, and the web of the rail 2 connects the flange of rail 3, and rail head 1, the web of the rail 2 are vertical with the flange of rail 3 respectively, constitute inverse-T-shaped.In the prior art, adopt pass schedule as shown in Figure 2 to realize the rolling of elevator T type guide rail.This pass schedule is totally 11 passages, comprise three passages of bloom pass M1～M3, in roll three passages of pass M4～M6 and four passages of finishing groove M7～M11, wherein, M11 is a last groove.In this system, bloom pass with in to roll pass be open pass, finishing groove is a closed pass, and among finishing groove M7～M11, adjacent two passages are remained silent opposite towards each other.When using this pass schedule that T type guide rail is rolled; In the finish rolling stage, it is rolling that finishing roll constantly carries out same direction to rolled piece, and rail head 1 relies on the stressed shaping of roll pressed with the web of the rail 2; And the flange of rail 3 relies on sidewall of pass processing fully; Cause the flange of rail 3 can't obtain well processed, can produce very big axial force in the operation of rolling, make as-rolled condition unstable.
Summary of the invention
In order to solve above-mentioned literature and art, primary technical problem to be solved by this invention is to provide a kind of milling method that is used for elevator T type guide rail.
Another technical problem to be solved by this invention is to provide the employed rolling groove of the rolling method system.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
A kind of milling method of T type guide rail; Wherein, the operation of rolling of rolled piece is divided into breaking down rolling sequence, finish rolling rolling sequence and finished product rolling sequence, it is characterized in that: at said finish rolling rolling sequence; Adopt the rolling mode of switching-over, the different directions of rolled piece is rolled; Said finish rolling rolling sequence not only comprises rolling to rail head, the web of the rail, also comprises rolling to the flange of rail.
More excellent ground, said finish rolling rolling sequence comprises the repeatedly rolling of rail head, the web of the rail and repeatedly rolling to the flange of rail.
At said finish rolling rolling sequence, said the rolling and said of rail head, the web of the rail hocketed to the rolling of the flange of rail.
The milling method of T type guide rail provided by the invention in the finish rolling stage, adopts the rolling method of switching-over, and the different directions of rolled piece is rolled, and makes the shaping of the flange of rail not rely on the extrusion process of the sidewall of pass merely.More excellent ground in the finish rolling stage, carries out repeatedly rolling to rail head, the web of the rail and the flange of rail of T type guide rail.Wherein, to the rolling of T type guide rail rail head, the web of the rail with to rolling the hocketing of the T type guide rail flange of rail, make the machine-shaping gradually in the operation of rolling of rail head, the web of the rail and the flange of rail.
The present invention also provides a kind of rolling groove system that is used to realize the T type guide rail of the rolling method; Comprise bloom pass and finishing groove; It is characterized in that, in the said finishing groove, comprise pass that is used for the rolling flange of rail and the pass that is used for the rolling rail head and the web of the rail.
More excellent ground in the said finishing groove, comprises a plurality of pass and a plurality of passes that are used for the rolling rail head and the web of the rail that are used for the rolling flange of rail.Wherein, said pass and the said pass that is used for the rolling rail head and the web of the rail that is used for the rolling flange of rail alternately arranged.
The said pass that is used for the rolling flange of rail is to put down to roll pass, and the said pass that is used for the rolling rail head and the web of the rail is an edging pass.
Wherein, the said flat pass that rolls that is used for the rolling flange of rail comprises shank that is used for the rolling flange of rail and the hole body that is used to hold rail head, the web of the rail.
The said edging pass that is used for rolling rail head, the web of the rail, the district of spreading that comprises the hole body that is used for rolling rail head, the web of the rail and be used to hold excess stock that the operation of rolling is squeezed out saidly spreads that the part corresponding to the flange of rail is connected in district and the pass.
More excellent ground, said to spread district's one side be open pass.
Rolling groove provided by the invention system comprises bloom pass and finishing groove, wherein, in the finishing groove, comprises pass that is used for the rolling flange of rail and the pass that is used for the rolling rail head and the web of the rail.More excellent ground; In the rolling groove system of a cover T type guide rail; Finishing groove can adopt a plurality of the flat of the rolling flange of rail that are used for to roll pass and a plurality of edging pass that is used for the rolling rail head and the web of the rail, and makes a plurality of passes according to the mode that " Ping-Li " pass replaces, and arrangement commutates.This pass schedule makes rail head, the web of the rail and the flange of rail in the operation of rolling, is roll forming, can obtain good processing.And, adopt flat-pass that grade separation replaces to commutate when rolling, eliminated the potential safety hazard of curling round the roll in the operation of rolling, greatly reduce rolling difficulty.
In addition; The present invention also provides a kind of rolling groove system of T type guide rail; Be used for T type guide rail rolling of a plurality of specifications, it is characterized in that: comprise a cover bloom pass and many cover finishing groovees, wherein; Bloom pass is shared; Every cover finishing groove comprises a plurality of pass and a plurality of passes that are used for the rolling rail head and the web of the rail that are used for the rolling flange of rail corresponding to the T type guide rail rolled piece of a specification in every cover finishing groove, and said pass and the said pass that is used for the rolling rail head and the web of the rail that is used for the rolling flange of rail alternately arranged.
Rolling through adopting above-mentioned pass schedule that T type guide rail rolled piece is carried out the switching-over that " Ping-Li " replace, can make rolled piece obtain good processing, thereby realize bloom pass shared of a plurality of specification T type guide rail rolled pieces.Through a shared cover bloom pass, and the finishing groovees of cover more than supporting the setting, realize the rolling of a plurality of specification T type guide rails.So, in the rolling groove system of a plurality of specification T type guide rails, shared through bloom pass reduced the roll consumption in a large number, reduced the workload of roll change, makes the whole operation of rolling be simplified.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is further described.
Fig. 1 is an elevator T type track cross-section structural representation;
Fig. 2 is the rolling groove system of elevator T type guide rail in the prior art;
Fig. 3 is the bloom pass of the pass schedule of elevator T type guide rail in the embodiments of the invention;
Fig. 4 is the finishing groove of the pass schedule of elevator T type guide rail in the embodiments of the invention;
The flat structural representation that rolls pass and edging pass that Fig. 5 adopts for elevator T type guide rail in the embodiments of the invention;
Fig. 6 is in the T70 guide rail rolling groove system, the comparison of rolling groove M7 and K8.
The specific embodiment
Generally will be divided into breaking down rolling sequence, finish rolling rolling sequence and finished product rolling sequence to the rolling process of rolled piece.Wherein, the breaking down rolling sequence is used for the rolled piece section is reduced, and its length is extended; The finish rolling rolling sequence is used for the preformed of rolled piece, when constantly reducing the rolled piece section, makes the rolled piece section configuration become the blank similar with finished product gradually; The finished product rolling sequence then is used for rolled piece is carried out fine finishining, makes the rolled piece section have the desired shape and size of finished product.
Referring to shown in Figure 1, a kind of elevator T type guide rail comprises rail head 1, the web of the rail 2 and the flange of rail 3.In order to realize rolling processing to T type guide rail rail head 1, the web of the rail 2 and the flange of rail 3; Make the flange of rail 3 of rolled piece not rely on sidewall of pass extrusion modling merely; At the finish rolling rolling sequence; This milling method adopts the rolling mode of switching-over, and it is rolling that two orthogonal directions of rolled piece are commutated, thereby realize the rolling processing to rolled piece rail head 1, the web of the rail 2 and the flange of rail 3.Wherein, rail head 1 is identical with the rolling direction of the web of the rail 2, so can carry out simultaneously rail head 1 and the rolling of the web of the rail 2, more excellent ground can be realized in the same operation of rolling; And the rolling direction of the flange of rail 3 is the perpendicular directions of rolling direction with rail head 1, the web of the rail 2; Can adopt another operation of rolling to come to realize separately; Also can be when the rail head 1 and the web of the rail 2 be rolled; Utilize milling train that the flange of rail 3 is rolled, promptly rolled piece is carried out the rolling of both direction simultaneously.
Therefore, the finish rolling stage of this milling method, not only comprise rolling to rail head 1, the web of the rail 2, also comprise rolling to the flange of rail 3.Wherein, More excellent ground in the finish rolling stage, carries out repeatedly rolling respectively to rail head 1, the web of the rail 2 and the flange of rail 3; And will hocket to the rolling of rail head 1, the web of the rail 2 with to the rolling of the flange of rail 3, thereby make the machine-shaping gradually in the operation of rolling of rail head 1, the web of the rail 2 and the flange of rail 3.
At the finished product rolling sequence, when rolled piece is carried out fine finishining, in the time of can be to rail head in the rolled piece 1, the web of the rail 2 rolling processing, to the flange of rail 3 through sidewall of pass extrusion modling; Also can be to rail head 1, the web of the rail 2 and the flange of rail 3 roll forming together, simultaneously rolling as using milling train to two rolling directions of rolled piece, rolled piece directly is expressed to the shape and size of T type guide rail.
For realizing said method, the present invention also provides a kind of rolling groove system that is used to realize this method, like Fig. 3 and shown in Figure 4.This rolling groove system comprises bloom pass K1～K6 (see figure 3) and finishing groove K7～K13 (see figure 4).This pass schedule is totally 13 passages, 6 passages of bloom pass, 7 passages of finishing groove.In finishing groove, adopt flat-switching-over that grade separation replaces rolling, can realize rail head 1, the web of the rail 2 and the rolling of the flange of rail 3 are shaped.
As shown in Figure 3, bloom pass comprises six passes of K1～K6.Bloom pass is called elongation pass or compression pass again, and the task of this pass is to reduce steel ingot or steel billet section, and its length is extended.Bloom pass mainly adopts box hole, and wherein, K1～K3 is flat box hole, and K4 is upright box hole, and K5, K6 are common trapezoidal hole.After the K3 groove rolling finished, the blank half-twist got into the K4 pass, and half-twist gets into K5, K6 pass subsequently, and it is rolling to accomplish breaking down then.
Finishing groove as shown in Figure 4 comprises intermediate pass K7～K12 and last groove K13.Wherein, intermediate pass K7～K12 when constantly reducing the rolled piece section, makes the rolled piece section configuration become the blank similar with finished product gradually.K13 is a last groove, is last pass in the pass schedule, is used for rolled piece is carried out fine finishining, makes the rolled piece section have the desired shape and size of finished product.
Wherein, intermediate pass K7～K12 can be divided into three groups of passes, and K7 and K8, K9 and K10, K11 and K12 respectively form one group of pass respectively, comprises a pass and a pass that is used for the rolling rail head 1 and the web of the rail 2 that is used for the rolling flange of rail 3 in every group of pass.
K7, K9 and K11 are the passes that is used for the rolling flange of rail 3, are to put down to roll pass, belong to T shape hole.Shown in Fig. 5 a, this flat pass that rolls comprises hole body 4 and shank 5 two parts.Wherein, hole body 4 is corresponding to the rail head 1 and the web of the rail 2 of T type guide rail rolled piece, and shank 5 is corresponding to the flange of rail 3 of T type guide rail rolled piece.Rolling through T shape hole on the one hand, changes through hole body 4 sizes, can make the part of rolled piece corresponding to the rail head 1 and the web of the rail 2, and cross-sectional area diminishes gradually, and it is elongated that shape becomes gradually; On the other hand, through the variation of shank 5, can make the shape and size roll forming gradually of the rolled piece flange of rail 3.
K8, K10 and K12 are the passes that is used for the rolling rail head 1 and the web of the rail 2, are edging passes, belong to irregularly-shaped hole.Shown in Fig. 5 b, this pass comprises hole body 6 and spreads district's 7 two parts.Wherein, the shape of hole body 6 approaches the finished product rolled piece, is used for holding suitably spreading of excess stock that the rolled piece operation of rolling is squeezed out and spread district 7, spreads that the part corresponding to the flange of rail 3 is connected in district 7 and the pass.Along with the shape of hole body 6 in the different passes gradually changes, the size of rail head 1, the web of the rail 2 moves closer in finished size in the rolled piece.Spread the unnecessary material of district in 7 in the follow-up operation of rolling and in the operation of rolling, be extruded to, can further be expressed to the inside of hole body 6, become the part of rolled piece.
In the pass of K7～K12, flat roll pass, edging pass is used alternatingly, and rail head 1, the web of the rail 2 and the flange of rail 3 of rolled piece processs respectively, the size that makes rail head 1, the web of the rail 2 and the flange of rail 3 is through shaping gradually behind a series of pass.Three groups of passes lump together, and the switching-over rolling mode that adopts " Ping-Li " to replace has not only been realized the rolling of rail head 1, the web of the rail 2, have also realized rolling to the flange of rail 3 making the shaping of the flange of rail 3 not rely on the sidewall of pass to process merely.
In the prior art, adopt pass schedule shown in Figure 2 to be rolled.Wherein, among finishing groove M7～M11, adjacent two passages are remained silent opposite towards each other.When adopting this pass schedule to be rolled, be easy to produce the curling round the roll accident.In order to prevent the generation of curling round the roll accident, " the dead leg " that need usually to become the rolled stock two ends slices off with gas cutting.And in finishing pass sequence shown in Figure 4, adopt flat-pass that grade separation replaces to commutate when rolling, and can eliminate the potential safety hazard of curling round the roll, greatly reduce rolling difficulty, and do not need to process, thereby practiced thrift the steel raw material greatly becoming rolled stock.Use this pass schedule, the rolling T type guide rail that processes the equivalent same specification can be practiced thrift steel raw material 8% approximately.
In addition, more excellent ground in this pass schedule, spreads district's 7 one sides and adopts open pass among finishing groove K8, K10 and the K12; In order to make rail head 1 obtain good processing, hole body 6 one sides can adopt closed pass.Because the roll green diameter is relevant with the pass size, to compare with pass shown in Figure 2, the milling train of same size adopts pass according to the invention, can reduce the green diameter of roll greatly.At this, used Φ 350 milling trains are that example describes during with rolling T 70 guide rails.As shown in Figure 6, roll nominal diameter Do=350mm, when using pass M7, roll green diameter D=350+70 * 2=490mm, needing to adopt maximum green diameter is the roll of 490mm; And using pass K8, roll green diameter D=350+18 * 2=386mm, a maximum green diameter of need employing are that the roll of 386mm can be realized, thereby make the roll green diameter reduce 104mm.L=700mm calculates by barrel length, and single roll weight can be reduced to 730kg by original 1123kg.So, adopt and should overlap the pass system, make the roll green diameter obtain reducing, thereby reduced the roll consumption, reduced the cutting output of roll, practiced thrift the rolled steel dosage of roll greatly.
In the above-mentioned finishing groove, provide three groups of flat pass and edging passes of rolling that alternately occur, wherein, flatly rolled the roll forming that pass and edging pass are respectively applied for realization rail head 1, the web of the rail 2 and the flange of rail 3.In practical application; Also can only comprise one group or two groups pass and the pass that is used for the rolling rail head 1 and the web of the rail 2 that is used for the rolling flange of rail 3 in the finishing groove; And similar pass in all the other passes employings and the prior art; Equally also can realize the effect rolling, the finished product processing of the flange of rail 3 and the stress distribution in the finished product are improved rail head 1, the web of the rail 2 and the flange of rail 3.Certainly; More excellent ground; Can adopt a plurality of pass and a plurality of passes that are used for the rolling rail head 1 and the web of the rail 2 that are used for the rolling flange of rail 3 in every cover finishing groove; And said pass and the said pass that is used for the rolling rail head 1 and the web of the rail 2 that is used for the rolling flange of rail 3 alternately arranged, can be made the operation of rolling of T type guide rail more simple like this.
In addition, in pass schedule as shown in Figure 2, to the guide rail of T70, T75, T78, four kinds of specifications of T89, the T type guide rail of each specification rolling all needs the one cover pass of design separately.And rolling groove of the present invention system;-switching-over that grade separation replace flat through adopting in the finish rolling stage is rolling; Make the cross dimensions and the shape of T type guide rail rolled piece of four specifications obtain across-the-board regulation, thereby make that the T type guide rail (T70, T75, T78, T89) of four specifications can a shared cover bloom pass, and then reduced the roll consumption in a large number in the finish rolling stage; Reduce the workload of roll change, made the whole operation of rolling be simplified.
For this reason, the invention provides a kind of rolling groove system of T type guide rail, be used for T type guide rail rolling of a plurality of specifications.This rolling groove system comprises a cover bloom pass and a quadruplet finishing groove.Wherein, bloom pass can be shared, and every cover finishing groove corresponds respectively to the T type guide rail rolled piece of a specification in the quadruplet pass.And, comprise a plurality of pass and a plurality of passes that are used for the rolling rail head 1 and the web of the rail 2 that are used for the rolling flange of rail 3 in every cover finishing groove, and said pass and the said pass that is used for the rolling rail head 1 and the web of the rail 2 that is used for the rolling flange of rail 3 arranged alternately.Use this pass schedule, single from alleviating roll weight, minimizing roll quantitative aspects calculates with 300,000 tons of T types of domestic annual output guide rail, can save 2000 tons on roll approximately.
In sum; Milling method provided by the invention and rolling groove system; In the finish rolling process, adopt flat-switching-over rolling mode that grade separation replaces, not only make rail head 1, the web of the rail 2 and the flange of rail 3 of T type guide rail rolled piece obtain good processing; And eliminated the potential safety hazard of curling round the roll, greatly reduce rolling difficulty.In addition, this cover pass system also realized in a plurality of specification T type guide rail operations of rolling, and bloom pass shared reduced the roll consumption, reduced the workload of roll change when rolling, makes the whole operation of rolling be simplified.
Adopt this cover pass system,, saved in the finish rolling process, become the cutting of rolled stock " dead leg ", can practice thrift the steel raw material of rolled piece owing to eliminated the potential safety hazard of curling round the roll.And because in this cover pass system, hole body 6 one sides adopt open pass in the part finishing groove, make the roll green diameter diminish, thereby have reduced the cutting output of roll, the rolled steel dosage of having practiced thrift roll.According to estimates, use this cover pass Rolling Production T of system type guide rail, but from alleviating aspects such as roll weight, minimizing roll quantity, can directly benefit 300,000,000 yuan every year approximately.So this cover pass system can bring great social benefit and economic benefit, has high practicality.
Certainly, the rolling method and rolling groove system are not only applicable to rolling elevator T type guide rail, are suitable for too for falling the guide rail of T-shape for other cross sections.For example cross section also can be realized with this cover rolling groove system with this kind milling method for falling the rail of T-shape.
Above elevator T type guide rail milling method provided by the present invention and rolling groove system have been carried out detailed explanation, but be not limitation of the present invention.As far as one of ordinary skill in the art, any conspicuous change of under the prerequisite that does not deviate from connotation of the present invention, it being done all will constitute to infringement of patent right of the present invention, with corresponding legal responsibilities.
Claims (10)
1. the milling method of a T type guide rail wherein, is divided into breaking down rolling sequence, finish rolling rolling sequence and finished product rolling sequence to the operation of rolling of rolled piece, it is characterized in that:
At said finish rolling rolling sequence, adopt the rolling mode of switching-over, the different directions of rolled piece is rolled;
In the said finish rolling rolling sequence, to outside rail head, the web of the rail rolling, also comprise rolling to the flange of rail.
2. the milling method of T type guide rail as claimed in claim 1 is characterized in that:
In the said finish rolling rolling sequence, to outside said rail head, the said web of the rail repeatedly rolling, also comprise repeatedly rolling to the said flange of rail.
3. the milling method of T type guide rail as claimed in claim 2 is characterized in that:
In the said finish rolling rolling sequence, hocket to the rolling of said rail head, the said web of the rail with to the rolling of the said flange of rail.
4. the rolling groove system of a T type guide rail is used to realize milling method as claimed in claim 1, and said rolling groove system comprises bloom pass and finishing groove, it is characterized in that:
In the said finishing groove, comprise pass that is used for the rolling flange of rail and the pass that is used for the rolling rail head and the web of the rail.
5. the rolling groove system of T type guide rail as claimed in claim 4 is characterized in that:
In the said finishing groove, comprise a plurality of pass and a plurality of passes that are used for the rolling rail head and the web of the rail that are used for the rolling flange of rail; Wherein, the pass that is used for the rolling flange of rail is alternately arranged with the pass that is used for the rolling rail head and the web of the rail.
6. the rolling groove system of T type guide rail as claimed in claim 4 is characterized in that:
The said pass that is used for the rolling flange of rail is to put down to roll pass, and the said pass that is used for the rolling rail head and the web of the rail is an edging pass.
7. the rolling groove system of T type guide rail as claimed in claim 6 is characterized in that:
The said flat pass that rolls comprises shank that is used for the rolling flange of rail and the hole body that is used to hold rail head, the web of the rail.
8. the rolling groove system of T type guide rail as claimed in claim 6 is characterized in that:
Said edging pass comprises the hole body that is used for rolling rail head, the web of the rail and is used to hold the district of spreading of excess stock that the operation of rolling is squeezed out, saidly spreads that the part corresponding to the flange of rail is connected in district and the pass.
9. the rolling groove system of T type guide rail as claimed in claim 8 is characterized in that:
Said spread the district one side be open pass.
10. the rolling groove system of a T type guide rail is used to realize it is characterized in that T type guide rail rolling of a plurality of specifications:
Said rolling groove system comprises a cover bloom pass and many cover finishing groovees; Wherein, Bloom pass is shared; Every cover finishing groove comprises a plurality of pass and a plurality of passes that are used for the rolling rail head and the web of the rail that are used for the rolling flange of rail corresponding to the T type guide rail rolled piece of a specification in every cover finishing groove, and said pass and the said pass that is used for the rolling rail head and the web of the rail that is used for the rolling flange of rail alternately arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110461034.7A CN102527714B (en) | 2011-12-30 | 2011-12-30 | Rolling method for T-shaped elevator guide rail and rolling pass system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110461034.7A CN102527714B (en) | 2011-12-30 | 2011-12-30 | Rolling method for T-shaped elevator guide rail and rolling pass system |
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| CN102527714A true CN102527714A (en) | 2012-07-04 |
| CN102527714B CN102527714B (en) | 2015-01-14 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203357A (en) * | 2013-03-05 | 2013-07-17 | 安阳市常兴轧钢有限责任公司 | Rolling process of T-shaped steel on transverse three-roller rolling mill |
| CN104148381A (en) * | 2014-07-07 | 2014-11-19 | 常州东方特钢有限公司 | Symmetric rolling technology for T-shaped elevator guide rail steel |
| CN105080963A (en) * | 2015-05-07 | 2015-11-25 | 内蒙古包钢钢联股份有限公司 | Rolling method for trough type steel rail |
| CN107555286A (en) * | 2017-09-20 | 2018-01-09 | 苏州塞维拉上吴电梯轨道系统有限公司 | A kind of guide rail |
| CN109531052A (en) * | 2018-10-18 | 2019-03-29 | 南通重矿金属新材料有限公司 | A kind of roll pass processing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203357A (en) * | 2013-03-05 | 2013-07-17 | 安阳市常兴轧钢有限责任公司 | Rolling process of T-shaped steel on transverse three-roller rolling mill |
| CN104148381A (en) * | 2014-07-07 | 2014-11-19 | 常州东方特钢有限公司 | Symmetric rolling technology for T-shaped elevator guide rail steel |
| CN105080963A (en) * | 2015-05-07 | 2015-11-25 | 内蒙古包钢钢联股份有限公司 | Rolling method for trough type steel rail |
| CN105080963B (en) * | 2015-05-07 | 2017-05-17 | 内蒙古包钢钢联股份有限公司 | Rolling method for trough type steel rail |
| CN107555286A (en) * | 2017-09-20 | 2018-01-09 | 苏州塞维拉上吴电梯轨道系统有限公司 | A kind of guide rail |
| CN109531052A (en) * | 2018-10-18 | 2019-03-29 | 南通重矿金属新材料有限公司 | A kind of roll pass processing method |
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| CN102527714B (en) | 2015-01-14 |
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