CN108723085A - The milling method of head trough of belt rail - Google Patents
The milling method of head trough of belt rail Download PDFInfo
- Publication number
- CN108723085A CN108723085A CN201810599727.4A CN201810599727A CN108723085A CN 108723085 A CN108723085 A CN 108723085A CN 201810599727 A CN201810599727 A CN 201810599727A CN 108723085 A CN108723085 A CN 108723085A
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- Prior art keywords
- rail
- carried out
- head
- frame
- iron scale
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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
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The present invention relates to steel rail rolling method field, especially a kind of head effectively solves the milling method that each section metal distribution difference causes greatly rolling torsion, is bent serious head trough of belt rail, includes the following steps：A, milling train is set, continuous casting billet is heated to 1150 DEG C or so by heating furnace；B, removal billet surface stove gives birth to iron scale；C, reciprocal five passes are carried out；D, reciprocal five passes are carried out on the second frame big mill；E, the secondary iron scale in rolled piece surface is removed；F, reciprocal three passes are carried out；G, the secondary iron scale in rolled piece surface is removed；H, a time is rolled；I, the secondary iron scale in rolled piece surface is removed；J, a time is rolled；K, hot print heat (batch) number, stream serial number, segment number；L, cutting head cutting tail.The present invention fundamentally solve each section metal distribution difference it is big, cause rolling torsion, be bent serious problem, among the processing of head trough of belt rail.
Description
Technical field
The present invention relates to steel rail rolling method field, especially a kind of milling method of head trough of belt rail.
Background technology
Head trough of belt rail is also known as groove profile rail, which mainly uses tram way.Since its section pole is not right
Claim, production difficulty is very big, therefore, is known as " king of rail ".Country's Anshan iron and steel plant, Anshan black bamboo, Baogang, Wuhan Iron and Steel Plant have had production at present
Ability is being developed.Groove profile rail section causes rolling torsion, bending serious since each section metal distribution difference is big.
Invention content
Technical problem to be solved by the invention is to provide a kind of effective sections for solving to occur in groove profile rail production process
The milling method for causing rolling torsion greatly due to each section metal distribution difference, being bent serious head trough of belt rail.
The technical solution adopted by the present invention to solve the technical problems is：The milling method of head trough of belt rail, including with
Lower step：A, first, two frame big mills, two frame universal roughing mills, a frame universal finishing mill and two frame edging mills are set, so
Afterwards, continuous casting billet is heated to 1150 DEG C or so by heating furnace；B, billet surface stove is removed by high pressure water and gives birth to iron scale；c,
Reciprocal five passes are carried out on first big mill；D, then, steel billet transportation to the second frame cogging is rolled by roller-way
Machine, and reciprocal five passes are carried out on the second frame big mill, it is rolled into rail blank；E, rolled piece is removed by high pressure water
The secondary iron scale in surface；F, reciprocal three passes are carried out in first universal roughing mill group；G, it is removed by high-pressure blast
The secondary iron scale in rolled piece surface；H, in the enterprising rolling a time of the second frame universal roughing mill；I, rolled piece is removed by high-pressure blast
The secondary iron scale in surface；J, rolling a time is carried out on universal finishing mill, obtains final finished head trough of belt rail；K, right
Rail carries out hot print heat (batch) number, stream serial number, segment number；L, cutting head cutting tail is carried out to rail；M, pre-bending processing is carried out to rail, reduced
Rectify antecurvature curvature；N, rail is cooled to room temperature on cold bed；O, flat vertical compound straightening is carried out to rail；P, to carrying out in line gauge
Lattice size, glacing flatness, internal soundness detection；Q, scale cutting is carried out to rail；R, surface quality inspection is carried out to rail；S, right
Passed examination rail progress end tints, labels, positive and negative conjunction steel is put in storage.
Further, in step a, the dimensions of continuous casting billet is 380 × 280mm.
Further, in step a, heating furnace is walking beam furnace.
Further, above-mentioned milling train, in rolling, the rail lip of the rail is arranged in above roll line.
The beneficial effects of the invention are as follows：In actual use, since improvement is optimized to rolling mill practice, using two framves
Big mill, two frame universal roughing mills, a frame universal finishing mill and two frame edging mills and corresponding rolling mill practice, from basic
On solve each section metal distribution difference it is big, cause rolling torsion, be bent serious problem, present invention is particularly suitable for heads
Among the processing of trough of belt rail.
Description of the drawings
Fig. 1 is the structural schematic diagram for the rail that the present invention processes.
In figure label for：Rail 1, rail lip 11, roll line 2.
Specific implementation mode
The following further describes the present invention with reference to the drawings.
The milling method of head trough of belt rail as shown in Figure 1, includes the following steps：A, first, two frame coggings of setting are rolled
Then continuous casting billet is heated to by machine, two frame universal roughing mills, a frame universal finishing mill and two frame edging mills by heating furnace
1150 DEG C or so；B, billet surface stove is removed by high pressure water and gives birth to iron scale；C, it is carried out on first big mill reciprocal
Five passes；D, then, by roller-way by steel billet transportation to the second frame big mill, and carried out on the second frame big mill
Reciprocal five passes, are rolled into rail blank；E, the secondary iron scale in rolled piece surface is removed by high pressure water；F, in first
Reciprocal three passes are carried out in universal roughing mill group；G, the secondary iron scale in rolled piece surface is removed by high-pressure blast；H,
The enterprising rolling a time of two frame universal roughing mills；I, the secondary iron scale in rolled piece surface is removed by high-pressure blast；J, in omnipotent essence
The enterprising rolling a time of milling train, obtains final finished head trough of belt rail；K, hot print heat (batch) number, stream serial number, section are carried out to rail
Number；L, cutting head cutting tail is carried out to rail；M, pre-bending processing is carried out to rail, reduces and rectifys antecurvature curvature；N, by rail on cold bed
It is cooled to room temperature；O, flat vertical compound straightening is carried out to rail；P, to detected in wire gauge sizes, glacing flatness, internal soundness；
Q, scale cutting is carried out to rail；R, surface quality inspection is carried out to rail；S, it tints, paste to passed examination rail progress end
Label, positive and negative conjunction steel storage.
Existing milling method, due to the defect of its flow process design, the product head bottom two parts metal actually obtained
It is big to measure difference.For the present invention, due to the optimization of flow scheme design, and use two frame big mills, two frame universal roughing mills,
As soon as frame universal finishing mill and two frame edging mills and corresponding rolling mill practice also fundamentally solve each section metal point
It is big with difference, cause rolling torsion, be bent serious problem.Generally, in step a, the dimensions of continuous casting billet is preferably 380 ×
280mm.In order to allow in step a to the heating of continuous casting billet more it is controllable effectively, the heating furnace can be selected for stepped heating
Stove.In addition, as shown in Figure 1, above-mentioned milling train is in rolling, the rail lip 11 of the preferably rail 1 is arranged in 2 top of roll line.
In actual use, omnipotent thick using two frame big mills, two framves since improvement is optimized to rolling mill practice
Milling train, a frame universal finishing mill and two frame edging mills and corresponding rolling mill practice fundamentally solve each section metal point
It is big with difference, cause rolling torsion, be bent serious problem.
Claims (4)
1. the milling method of head trough of belt rail, which is characterized in that include the following steps：
A, first, two frame big mills, two frame universal roughing mills, a frame universal finishing mill and two frame edging mills are set, it then, will
Continuous casting billet is heated to 1150 DEG C or so by heating furnace；
B, billet surface stove is removed by high pressure water and gives birth to iron scale；
C, reciprocal five passes are carried out on first big mill；
D, then, by roller-way by steel billet transportation to the second frame big mill, and carry out reciprocal five on the second frame big mill
Passes are rolled into rail blank；
E, the secondary iron scale in rolled piece surface is removed by high pressure water；
F, reciprocal three passes are carried out in first universal roughing mill group；
G, the secondary iron scale in rolled piece surface is removed by high-pressure blast；
H, in the enterprising rolling a time of the second frame universal roughing mill；
I, the secondary iron scale in rolled piece surface is removed by high-pressure blast；
J, rolling a time is carried out on universal finishing mill, obtains final finished head trough of belt rail；
K, hot print heat (batch) number, stream serial number, segment number are carried out to rail；
L, cutting head cutting tail is carried out to rail；
M, pre-bending processing is carried out to rail, reduces and rectifys antecurvature curvature；
N, rail is cooled to room temperature on cold bed；
O, flat vertical compound straightening is carried out to rail；
P, to detected in wire gauge sizes, glacing flatness, internal soundness；
Q, scale cutting is carried out to rail；
R, surface quality inspection is carried out to rail；
S, it tints, label to passed examination rail progress end, positive and negative conjunction steel is put in storage.
2. the milling method of trough of belt rail in head as described in claim 1, it is characterised in that：In step a, the size of continuous casting billet
Specification is 380 × 280mm.
3. the milling method of trough of belt rail in head as described in claim 1, it is characterised in that：In step a, heating furnace is stepping
Formula heating furnace.
4. the milling method of trough of belt rail in head as described in claim 1, it is characterised in that：Above-mentioned milling train is in rolling, institute
The rail lip (11) for stating rail (1) is arranged in above roll line (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810599727.4A CN108723085A (en) | 2018-06-12 | 2018-06-12 | The milling method of head trough of belt rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810599727.4A CN108723085A (en) | 2018-06-12 | 2018-06-12 | The milling method of head trough of belt rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108723085A true CN108723085A (en) | 2018-11-02 |
Family
ID=63929264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810599727.4A Pending CN108723085A (en) | 2018-06-12 | 2018-06-12 | The milling method of head trough of belt rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108723085A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523805A (en) * | 2019-08-22 | 2019-12-03 | 武汉钢铁有限公司 | Groove-shape rail method for aligning |
| CN112024594A (en) * | 2020-07-31 | 2020-12-04 | 鞍钢股份有限公司 | Hole type structure of groove-shaped steel rail |
| CN113441560A (en) * | 2021-07-07 | 2021-09-28 | 攀钢集团攀枝花钢钒有限公司 | Method for adjusting rolling warping of roughing mill by double heating furnaces |
| RU2787897C1 (en) * | 2022-07-25 | 2023-01-13 | Акционерное общество "ЕВРАЗ Объединенный Западно-Сибирский металлургический комбинат", АО "ЕВРАЗ ЗСМК" | Method for rolling tramway grooved rails |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054630A (en) * | 1990-01-10 | 1991-09-18 | 英国钢铁公司 | Improved railroad vehicle track |
| WO1999020840A1 (en) * | 1997-10-20 | 1999-04-29 | Sogerail | Rail for railway line with reinforced railhead |
| 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 |
-
2018
- 2018-06-12 CN CN201810599727.4A patent/CN108723085A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054630A (en) * | 1990-01-10 | 1991-09-18 | 英国钢铁公司 | Improved railroad vehicle track |
| WO1999020840A1 (en) * | 1997-10-20 | 1999-04-29 | Sogerail | Rail for railway line with reinforced railhead |
| 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 |
Non-Patent Citations (3)
| Title |
|---|
| 周剑华: "高速铁路重轨尺寸精度、平直度及残余应力控制的研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 徐列平: "钢轨余热淬火考察团赴英国、法国、卢森堡、奥地利考察技术报告（生产工艺部分）", 《包钢科技》 * |
| 魏天斌: "高速重轨生产线及武钢重轨生产线的建设", 《综述与评论》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523805A (en) * | 2019-08-22 | 2019-12-03 | 武汉钢铁有限公司 | Groove-shape rail method for aligning |
| CN112024594A (en) * | 2020-07-31 | 2020-12-04 | 鞍钢股份有限公司 | Hole type structure of groove-shaped steel rail |
| CN113441560A (en) * | 2021-07-07 | 2021-09-28 | 攀钢集团攀枝花钢钒有限公司 | Method for adjusting rolling warping of roughing mill by double heating furnaces |
| RU2787897C1 (en) * | 2022-07-25 | 2023-01-13 | Акционерное общество "ЕВРАЗ Объединенный Западно-Сибирский металлургический комбинат", АО "ЕВРАЗ ЗСМК" | Method for rolling tramway grooved rails |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |
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| RJ01 | Rejection of invention patent application after publication |