CN105458002B - A kind of hot rolling creeper tread roughing mill pass schedule and the hot-rolling method of creeper tread - Google Patents
A kind of hot rolling creeper tread roughing mill pass schedule and the hot-rolling method of creeper tread Download PDFInfo
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- CN105458002B CN105458002B CN201510862446.XA CN201510862446A CN105458002B CN 105458002 B CN105458002 B CN 105458002B CN 201510862446 A CN201510862446 A CN 201510862446A CN 105458002 B CN105458002 B CN 105458002B
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- leg
- high growth
- hole
- growth hole
- roughing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2201/00—Special rolling modes
- B21B2201/06—Thermomechanical rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2265/00—Forming parameters
- B21B2265/22—Pass schedule
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Metal Rolling (AREA)
Abstract
The invention belongs to Section Steel Production technical field, in particular it relates to a kind of hot rolling creeper tread roughing mill pass schedule and the hot-rolling method of creeper tread.The present invention provides a kind of hot rolling creeper tread roughing mill pass schedule and the hot rolling technology of creeper tread, and specially roughing uses three-high mill, and blank is using height：The continuous casting steel billet of width≤1；Each roughing hole is provided with three legs；There is artificial leg corresponding with middle leg above pass；Breakdown pass is made up of leg high growth hole and wing plate broadening hole.The present invention in view of the shortcomings of the prior art, relies on existing h roughing mill, without upgrading, you can realize the hot rolling production of creeper tread.
Description
Technical field
The invention belongs to Section Steel Production technical field, in particular it relates to which a kind of hot rolling creeper tread uses roughing mill hole
The hot-rolling method of type system and creeper tread.
Background technology
Crawler belt is the conventional ground-engaging element of engineering machinery, and compared with tire, crawler belt can be applied to various severe work
Environment, and there is wear-resisting, impact resistance.Creeper tread is the production necessary metallurgic product of crawler belt, and forming method is varied,
Such as casting, punch forming, machining shaping and roll forming.Due to method for rolling and molding efficiency high, therefore, use
Hot-rolling method production creeper tread will turn into inexorable trend.The hot rolling of shaped steel in two stages, roughing and finish rolling.The purpose of roughing is
The cross sectional shape of shaped steel is rolled out, finish rolling stage rolling goes out qualified size.Therefore, most of deformation of hot rolling is in rough rolling step
Complete, roughing can smoothly complete directly determine Section Steel Production success or failure.In order to smoothly complete roughing, type steel production line is usual
Equip rolling power big, mechanization, automaticity high, the flexible two-roller reversible milling train of rolling procedure is as roughing mill, but two
The reversible roughing mill of roller has that plant machinery is complicated, electronic component is various, it is big to build investment, reliability is low, maintenance cost
High the shortcomings of.Three-high mill is simple in construction, electronic equipment is few, automaticity is low, rolling procedure is fixed, with two-roller reversible milling train
Compare, then with reduced investment, maintenance cost is low, the advantages of reliable and stable, therefore in the production line of common shaped steel such as round steel, square steel
Upper configuration application extensively.Because creeper tread is complex-shaped (see Fig. 1), roughing link is narrow due to blank height, deform uneven make
Into upset, the steel that falls, the three-high mill that therefore, automaticity is low, rolling procedure is fixed is difficult to the production for being competent at such shaped steel.It is right
In the Section Steel Production enterprise for equipping such milling train, creeper tread is such as produced, upgrading can only be carried out to production line, spend huge fund
Construction implement and the high two-roller reversible milling train of automaticity.
The content of the invention
A kind of hot rolling creeper tread roughing mill pass schedule and the hot-rolling method of creeper tread that the present invention is provided, for existing
There is the deficiency of technology, existing h roughing mill is relied on, without upgrading, you can realize the hot rolling production of creeper tread.
The hot rolling creeper tread roughing mill pass of the present invention, including leg high growth hole and wing plate broadening hole, wherein, the leg
High growth hole bottom two ends are respectively equipped with highly equal the first side of leg high growth hole leg 1 and the second side of leg high growth hole leg 3；
Provided with leg 2 in the middle of leg high growth hole in the middle of the leg of the two legs high growth hole side, the height of leg 2 is low in the middle of the leg high growth hole
In leg high growth hole side leg height；
In leg high growth hole upper topside, leg high growth hole artificial leg 4, the leg are just set to the position of leg 2 in the middle of leg high growth hole
The width of leg 2 is equal in the middle of the width of high growth hole artificial leg 4 and leg high growth hole, and the height of leg high growth hole artificial leg 4 is less than leg high growth
The height of leg 2 in the middle of hole；
The wing plate broadening hole is inclined upwardly including a wing plate 5.
According to the roughing mill pass of the present invention, wherein, the height of leg 2 is leg high growth hole side in the middle of the leg high growth hole
The 60%-90% of leg height.
According to the roughing mill pass of the present invention, wherein preferably, the height of the leg high growth hole artificial leg 4 is 10-30mm.
According to the roughing mill pass of the present invention, wherein preferably, the leg high growth hole upper topside both sides are outward-dipping, with
Vertical direction angle is 5~20 °, more preferably 7~15 °.
According to the roughing mill pass of the present invention, wherein, it is 30-60 ° that the wing plate 5, which is inclined upwardly with horizontal direction angle,.
The hot rolling creeper tread roughing mill pass of the present invention, the leg high growth hole is in downwardly open E shape structures, that is, is inShape.
The hot-rolling method of the creeper tread based on above-mentioned roughing mill pass of the present invention, comprises the following steps：
1) roughing is carried out to continuous casting steel billet using h roughing mill；Rough rolling step, steel billet is first rolled by 1-4 leg high growth hole
System, makes leg highly reach design height, then is rolled by 1-4 wing plate broadening hole, wing plate width is reached design width.
2) to step 1) steel billet carries out finish rolling after roughing, and creeper tread is made.
It is further preferred that the height to width ratio of the continuous casting steel billet is not more than 1.
Beneficial effects of the present invention are as follows：
It is not more than 1 blank by the ratio from height and the width, the center of gravity of blank, improving stability can be reduced.
It is highly equal by two side legs in each roughing hole, and higher than middle leg, middle leg is not contacted roller-way, increase workpiece motion s
During stability, it is to avoid blank upset, fall steel.The design of artificial leg can promote the growth of middle leg, it is to avoid because of blank height
Deficiency causes middle leg not to be full of.The setting in leg high growth hole promotes the first side leg 1, the second side leg 3 to be full of.Wing plate broadening hole
Setting can then promote the broadening of wing plate.By the design above in relation to property, this invention removes three-high mill in creeper tread
Roughing production present on limitation and unfavorable conditions, need not put into high cost by three-high mill be transformed into automaticity and
In the case of the higher two-roller reversible milling train of flexibility, the efficient production of creeper tread is realized.
Brief description of the drawings
Fig. 1 is creeper tread cross sectional shape schematic diagram.
Fig. 2 is the leg high growth hole schematic diagram of the roughing mill pass schedule of the present invention.
Fig. 3 is the wing plate broadening hole schematic diagram of the roughing mill pass schedule of the present invention.
Reference
1st, the first side of leg high growth hole leg 2, leg high growth hole centre leg 3, the second side of leg high growth hole leg
4th, leg high growth hole artificial leg 5, wing plate 6, the first side of wing plate broadening hole leg
7th, leg 8, the second side of wing plate broadening hole leg 9, wing plate broadening hole artificial leg in the middle of wing plate broadening hole
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The hot rolling creeper tread roughing mill pass of the present invention, including leg high growth hole and wing plate broadening hole, wherein, such as Fig. 2
Shown, the leg high growth hole bottom two ends are respectively equipped with highly equal the first side of leg high growth hole leg 1 and leg high growth
The second side of hole leg 3；Provided with leg 2 in the middle of leg high growth hole in the middle of the both sides leg, the height of leg 2 in the middle of the leg high growth hole
Less than leg high growth hole side leg height；
In leg high growth hole upper topside, leg high growth hole artificial leg 4, the leg are just set to the position of leg 2 in the middle of leg high growth hole
The width of leg 2 is equal in the middle of the width of high growth hole artificial leg 4 and leg high growth hole, and the height of leg high growth hole artificial leg 4 is less than leg high growth
The height of leg 2 in the middle of hole；
As shown in figure 3, the wing plate broadening hole is inclined upwardly including a wing plate 5.
In addition, the wing plate broadening hole also includes：Highly equal wing plate broadening hole is respectively equipped with positioned at bottom two ends
First side leg 6 and the second side of wing plate broadening hole leg 8；Provided with leg in the middle of wing plate broadening hole in the middle of the leg of the two wing plates broadening hole side
7, the height of wing plate broadening hole centre leg 7 is not higher than wing plate broadening hole side leg height；
In wing plate broadening hole upper topside, wing plate broadening hole artificial leg 9, the wing are just set to the position of leg 7 in the middle of wing plate broadening hole
The width of leg 7 is equal in the middle of the width of plate broadening hole artificial leg 9 and wing plate broadening hole, and the height of wing plate broadening hole artificial leg 9 is 10-30mm.
The height of leg 2 is the 60%-90% of side leg height in the middle of the leg high growth hole.The leg high growth hole artificial leg 4
Height be 10-30mm.The leg high growth hole upper topside both sides are outward-dipping, are 5~20 ° with vertical direction angle, enter one
Step is preferably 7~15 °.It is 30-60 ° that the wing plate 5, which is inclined upwardly with horizontal direction angle,.The hot rolling creeper tread of the present invention is with slightly
Design of section of rolling mill, the leg high growth hole is in downwardly open E shape structures.
The hot-rolling method of the creeper tread based on above-mentioned roughing mill pass of the present invention, comprises the following steps：
1) roughing is carried out to continuous casting steel billet using h roughing mill；Rough rolling step, steel billet is first rolled by 1-4 leg high growth hole
System, makes leg highly reach design height, then is rolled by 1-4 wing plate broadening hole, wing plate width is reached design width；
2) to step 1) steel billet carries out finish rolling after roughing, and creeper tread is made.
It is further preferred that the height to width ratio of the continuous casting steel billet is not more than 1.
Embodiment 1
A kind of hot rolling technology of creeper tread, roughing uses three-high mill, and blank depth-width ratio is 1；Each roughing
Hole is provided with three legs；There is artificial leg corresponding with middle leg above pass；Breakdown pass is by leg high growth hole and wing plate broadening
Hole is constituted.
Two side legs (the first side leg 1, the second side leg 3) in each roughing hole are highly equal, and middle leg 2 is that side leg is high
The 60% of degree.
The artificial leg 4 is located at the surface of middle leg 2, and width is close with middle leg, is highly 10mm.
The shape in described leg high growth hole is substantially in the E shapes that Open Side Down, and leg high growth hole upper topside both sides lean outward
Tiltedly, it is 5 ° with vertical direction angle a, and Open Side Down for pass.
The oblique top of wing plate 5 in described wing plate broadening hole, is 30 ° with horizontal direction angle.
The hot-rolling method of the creeper tread based on above-mentioned roughing mill pass of the present invention, comprises the following steps：
1) roughing is carried out to continuous casting steel billet using h roughing mill；Rough rolling step, steel billet is first rolled by 2 leg high growth holes
System, makes leg highly reach design height, then is rolled by 3 wing plate broadening holes, wing plate width is reached design width；
2) to step 1) steel billet carries out finish rolling after roughing, and creeper tread is made.
Embodiment 2
A kind of hot rolling technology of creeper tread, roughing uses three-high mill, and blank depth-width ratio is 0.8；It is each thick
Hole is rolled provided with three legs；There is artificial leg corresponding with middle leg above pass；Breakdown pass is by leg high growth hole and wing plate exhibition
Wide aperture is constituted.
Two side legs (the first side leg 1, the second side leg 3) in each roughing hole are highly equal, and middle leg 2 is that side leg is high
The 90% of degree.
The artificial leg 4 is located at the surface of middle leg 2, and width is close with middle leg, is highly 20mm.
The shape in described leg high growth hole is substantially in the E shapes that Open Side Down, and leg high growth hole upper topside both sides lean outward
Tiltedly, it is 20 ° with vertical direction angle a, and Open Side Down for pass.
The oblique top of wing plate 5 in described wing plate broadening hole, is 60 ° with horizontal direction angle.
The hot-rolling method of the creeper tread based on above-mentioned roughing mill pass of the present invention, comprises the following steps：
1) roughing is carried out to continuous casting steel billet using h roughing mill；Rough rolling step, steel billet is first rolled by 3 leg high growth holes
System, makes leg highly reach design height, then is rolled by 2 wing plate broadening holes, wing plate width is reached design width；
2) to step 1) steel billet carries out finish rolling after roughing, and creeper tread is made.
Embodiment 3
A kind of hot rolling technology of creeper tread, roughing uses three-high mill, and blank depth-width ratio is 0.6；It is each thick
Hole is rolled provided with three legs；There is artificial leg corresponding with middle leg above pass；Breakdown pass is by leg high growth hole and wing plate exhibition
Wide aperture is constituted.
Two side legs (the first side leg 1, the second side leg 3) in each roughing hole are highly equal, and middle leg 2 is that side leg is high
The 70% of degree.
The artificial leg 4 is located at the surface of middle leg 2, and width is close with middle leg, is highly 30mm.
The shape in described leg high growth hole is substantially in the E shapes that Open Side Down, and leg high growth hole upper topside both sides lean outward
Tiltedly, it is 10 ° with vertical direction angle a, and Open Side Down for pass.
The oblique top of wing plate 5 in described wing plate broadening hole, is 40 ° with horizontal direction angle.
The hot-rolling method of the creeper tread based on above-mentioned roughing mill pass of the present invention, comprises the following steps：
1) roughing is carried out to continuous casting steel billet using h roughing mill；Rough rolling step, steel billet is first rolled by 1 leg high growth hole
System, makes leg highly reach design height, then is rolled by 4 wing plate broadening holes, wing plate width is reached design width；
2) to step 1) steel billet carries out finish rolling after roughing, and creeper tread is made.
Embodiment 4
A kind of hot rolling technology of creeper tread, roughing uses three-high mill, and blank depth-width ratio is 0.9；It is each thick
Hole is rolled provided with three legs；There is artificial leg corresponding with middle leg above pass；Breakdown pass is by leg high growth hole and wing plate exhibition
Wide aperture is constituted.
Two side legs (the first side leg 1, the second side leg 3) in each roughing hole are highly equal, and middle leg 2 is that side leg is high
The 80% of degree.
The artificial leg 4 is located at the surface of middle leg 2, and width is close with middle leg, is highly 20mm.
The shape in described leg high growth hole is substantially in the E shapes that Open Side Down, and leg high growth hole upper topside both sides lean outward
Tiltedly, it is 5 ° with vertical direction angle a, and Open Side Down for pass.
The oblique top of wing plate 5 in described wing plate broadening hole, is 50 ° with horizontal direction angle.
The hot-rolling method of the creeper tread based on above-mentioned roughing mill pass of the present invention, comprises the following steps：
1) roughing is carried out to continuous casting steel billet using h roughing mill；Rough rolling step, steel billet is first rolled by 4 leg high growth holes
System, makes leg highly reach design height, then is rolled by 1 wing plate broadening hole, wing plate width is reached design width；
2) to step 1) steel billet carries out finish rolling after roughing, and creeper tread is made.
Certainly, the present invention can also have various embodiments, in the case of without departing substantially from spirit of the invention and its essence, be familiar with
Those skilled in the art can make various corresponding changes and modification according to disclosure of the invention, but these it is corresponding change and
Deformation should all belong to the protection domain of appended claims of the invention.
Claims (9)
1. a kind of hot rolling creeper tread roughing mill pass schedule, including some leg high growth holes and some wing plate broadening holes, it is special
Levy and be,
The leg high growth hole bottom two ends are respectively equipped with highly equal leg high growth hole the first side leg (1) and leg high growth
The second side of hole leg (3)；Provided with leg (2), the leg high growth in the middle of leg high growth hole in the middle of the leg of the two legs high growth hole side
The height of leg (2) is less than leg high growth hole side leg height in the middle of hole；
Leg high growth hole artificial leg (4), the leg just are being set to leg (2) position in the middle of leg high growth hole in leg high growth hole upper topside
Leg (2) width is equal in the middle of high growth hole artificial leg (4) width and leg high growth hole, and leg high growth hole artificial leg (4) is highly less than leg
Leg (2) height in the middle of high growth hole；
The wing plate broadening hole is inclined upwardly including a wing plate (5).
2. roughing mill pass schedule according to claim 1, it is characterised in that leg (2) in the middle of the leg high growth hole
Highly it is the 60%-90% of leg high growth hole side leg height.
3. roughing mill pass schedule according to claim 1, it is characterised in that the height of the leg high growth hole artificial leg (4)
Spend for 10-30mm.
4. roughing mill pass schedule according to claim 1, it is characterised in that the leg high growth hole upper topside two is lateral
Outer incline, is 5~20 ° with vertical direction angle.
5. roughing mill pass schedule according to claim 4, it is characterised in that the leg high growth hole upper topside two is lateral
Outer incline, is 7~15 ° with vertical direction angle.
6. roughing mill pass schedule according to claim 1, it is characterised in that the wing plate (5) is inclined upwardly and level
Angular separation is 30-60 °.
7. according to any described roughing mill pass schedules of claim 1-6, it is characterised in that the leg high growth hole is in downward
The E shape structures of opening.
8. a kind of hot-rolling method of the creeper tread based on any roughing mill pass schedules of claim 1-7, including following step
Suddenly：
1) roughing is carried out to continuous casting steel billet using h roughing mill；Rough rolling step, steel billet is first rolled by 1-4 leg high growth hole,
Leg is highly reached design height, then rolled by 1-4 wing plate broadening hole, wing plate width is reached design width；
2) to step 1) steel billet carries out finish rolling after roughing, and creeper tread is made.
9. hot-rolling method according to claim 8, it is characterised in that the height to width ratio of the continuous casting steel billet is not more than
1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510862446.XA CN105458002B (en) | 2015-11-30 | 2015-11-30 | A kind of hot rolling creeper tread roughing mill pass schedule and the hot-rolling method of creeper tread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510862446.XA CN105458002B (en) | 2015-11-30 | 2015-11-30 | A kind of hot rolling creeper tread roughing mill pass schedule and the hot-rolling method of creeper tread |
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| Publication Number | Publication Date |
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| CN105458002A CN105458002A (en) | 2016-04-06 |
| CN105458002B true CN105458002B (en) | 2017-08-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115193912B (en) * | 2022-06-20 | 2024-09-17 | 钢客履带(江苏)有限公司 | Herringbone single-tooth crawler steel |
| CN115007641B (en) * | 2022-07-26 | 2023-04-28 | 山东钢铁股份有限公司 | Single-tooth track shoe cogging hole pattern and hot rolling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW355149B (en) * | 1996-12-04 | 1999-04-01 | Schloemann Siemag Ag | A method of rolling pre-formed steel into finished steel using a roller frame device in reciprocating motion |
| CN1504276A (en) * | 2002-12-02 | 2004-06-16 | 李宝安 | Process for rolling H steel using trio mill |
| CN1608759B (en) * | 2004-11-12 | 2011-12-21 | 马鞍山钢铁股份有限公司 | Rolling pass system for deformed channel steel |
| CN201108917Y (en) * | 2007-10-11 | 2008-09-03 | 重庆钢铁(集团)有限责任公司 | Slotted hole type roller device |
| JP2011189388A (en) * | 2010-03-15 | 2011-09-29 | Nisshin Steel Co Ltd | Deformed cross-sectional bar with uneven pattern, and method for manufacturing the same |
| CN102926297B (en) * | 2012-11-06 | 2016-03-30 | 莱芜钢铁集团有限公司 | A kind of magnetic suspension train rail high dimensional accuracy F shaped steel and manufacturing process thereof |
| CN203343172U (en) * | 2013-07-19 | 2013-12-18 | 莱芜钢铁集团有限公司 | Crawler steel rolling roll dual-pass |
| CN205308951U (en) * | 2015-11-30 | 2016-06-15 | 山东钢铁股份有限公司 | Hot rolling is roughing mill pass schedule for grip -pad |
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