CN201634959U - Composite railway section steel - Google Patents
Composite railway section steel Download PDFInfo
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- CN201634959U CN201634959U CN2010201402930U CN201020140293U CN201634959U CN 201634959 U CN201634959 U CN 201634959U CN 2010201402930 U CN2010201402930 U CN 2010201402930U CN 201020140293 U CN201020140293 U CN 201020140293U CN 201634959 U CN201634959 U CN 201634959U
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- shaped steel
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Abstract
The utility model discloses a composite railway section steel, which is provided with a rail base, a rail web and a rail head. The section steel is made of alloy steel and PD3 steel welded in vertical direction or transverse direction. When the section steel is vertically welded, a rail web and a rail base made of the PD3 steel can be welded with a rail head made of the alloy steel, a lower rail web and the rail base made of the PD3 steel can be welded with an upper rail web and the rail head made of the alloy steel, or the rail base made of the PD3 can be welded with the rail web and the rail head made of the alloy steel. When the section steel is transversely welded, the alloy steel is welded on a local section of the whole PD3 section steel. The composite railway section steel has the advantages of long service life, high performance, wear resistance, low maintenance rate, energy conservation, lowered cost and the like, is favorable for railway construction and development, and can realize comprehensive and popularization and application.
Description
Technical field:
The utility model relates to a kind of compound railway shaped steel, and it both can be used as the rail wing on the railway switch, can be used as railway shaped steel (being rail) again.
Background technology:
Railway frog on the railway switch is made up of the fork heart, wing rail and union piece, and its effect is to make train wheel cross another strand shaped steel by one shaped steel.Existing rail wing adopts the PD3 steel, and heart rail then adopts alloy steel, and the wing rail of PD3 steel can only reach about 8,000 ten thousand tons application life, and the heart rail of alloy steel can reach 2～2.5 hundred million tons, and the whole service life of whole like this railway frog shaped steel is no more than 200,000,000 tons.This be heart rail with the alloy steel, be that the railway frog of wing rail prolongs with respect to the high manganese steel frog of block cast application life to some extent with the PD3 steel, but because of the heart rail of alloy steel and the wing rail life-span of PD3 steel can not mate, its application life is still undesirable, maintenance cost height, need a large amount of human and material resources, seriously restricted the development of railway.For overcoming above-mentioned railway frog defective and research and development high-performance railway shaped steel, associated production producer is also developing alloy steel wing rail and alloy steel shaped steel (being rail) in recent years, but it is with high costs, and application is popularized in difficult realization in an all-round way.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of long service life, compound railway shaped steel that performance is high are provided.
The utility model is to adopt such technical scheme to realize:
A kind of compound railway shaped steel has the flange of rail, the web of the rail and rail head, and vertical or transverse weld forms described shaped steel along shaped steel by alloy steel and PD3 steel.
The vertical welding of described shaped steel is the rail head welding with the web of the rail and the flange of rail and the alloy steel of PD3 steel.
The vertical welding of described shaped steel is with the last web of the rail of the following web of the rail of PD3 steel and the flange of rail and alloy steel and rail head welding.
The vertical welding of described shaped steel is with the web of the rail of the flange of rail of PD3 steel and alloy steel and rail head welding.
Described shaped steel transverse weld is the local segment welding alloy steel at whole section PD3 shaped steel.
The beneficial effects of the utility model are: PD3 steel and alloy steel is compound, it with the alloy steel work plane or at the local segment welding alloy steel of whole section PD3 shaped steel, can overcome central body of frog and unmatched defective of wing rail life-span, the tough handling procedure of high temperature water that again need not potassium steel, reduces cost at energy conservation.It possesses characteristics such as performance height, wear-resistant, long service life, maintenance rate are low, can be widely used as rail wing and railway shaped steel on the railway switch, is beneficial to the railway construction development, can realize popularizing in an all-round way and use.
Below be the key technical indexes of the present utility model and level:
1, intensity σ
b〉=1240Mpa, hardness HRC37-42, impact strength a
k(room temperature) 〉=70～100J/cm
2, a
k(40 ℃) 〉=50Jcm
2
2, fatigue life 〉=2 * 10
6Inferior, maximum defluxion≤15mm/m;
3, can satisfy passenger train speed 160～200Km/h, 25 tons of axle heavy cargo vehicle speeds reach the operation of 90Km/h;
4, application life is for passing through gross weight more than 400,000,000 tons;
5, functional performance reaches international most advanced level.
The utility model can be widely used in all kinds of raising speed railway track switches of railway and go up and the laying of railway shaped steel.According to country's 4,000,000,000,000 investment plans and railway development plan, railway general extension and speed-raising will reach the development of 160～200Km/h and railway seamless process.Therefore, carry out high-performance and long-life track switch Application and Development energetically, the high-performance combinatorial switch is the certainty of international and domestic development.After railway general extension and the speed-raising, traditional block cast potassium steel track switch of 40% will be substituted by high-performance track switch, and estimating needs more than 1000～20000 groups, and output value number reaches 10, if the exploitation international market, as Southeast Asian countries, its market capacity is big, has a extensive future.
If " 12 " last domestic railway uses 20,000 groups/year high-performance and long-life track switch, its output value can reach more than 200,000,000 yuan/year, directly profits tax can reach 60,000,000/year more than;
At least improve 3～4 times than block cast high manganese steel frog the application life of high-performance and long-life railway frog, and annual 20000 tons of the high manganese steel materials of saving were worth more than 10,000 ten thousand/year.
In addition, production of the present utility model needs the tough processing of high temperature water unlike the block cast high manganese steel frog, and this has just saved a large amount of energy, and about 500 yuan/ton of high manganese steel frog heat treatment expense per ton is saved 20,000 tons of high violent steel, but energy conservation 1,000 ten thousand/more than year.
From above-mentioned the key technical indexes and level as can be seen: the utility model and the not obviously difference of golden die steel the key technical indexes of isozygotying, but cost of the present utility model is well below the cost of the golden die steel that isozygotys.
Description of drawings:
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is an another kind of structural representation of the present utility model.
Fig. 3 is another structural representation of the present utility model.
Fig. 4 is also a kind of structural representation of the present utility model.
Fig. 5 is the A-A sectional view of Fig. 4.
Code name implication among the figure: 1-rail head; The 2-web of the rail; The last web of the rail of 2-1-; The web of the rail under the 2-2-; The 3-flange of rail.
The specific embodiment:
Referring to Fig. 1: this compound railway shaped steel has the flange of rail 3, the web of the rail 2 and rail head 1, rail head 1 is the alloy steel material, and the web of the rail 2 and the flange of rail are PD3 steel matter, and the web of the rail 2 of PD3 steel and the rail head 1 of the flange of rail 1 and alloy steel are welded into complete shaped steel along shaped steel vertical (short transverse).
Referring to Fig. 2: this compound railway shaped steel has the flange of rail 3, the web of the rail 2 and rail head 1, and the web of the rail is divided into web of the rail 2-1 and following web of the rail 2-2.Rail head 1 and last web of the rail 2-1 are the alloy steel material, and the flange of rail 3 and following web of the rail 2-2 are PD3 steel matter, and the flange of rail 3 of PD3 steel and the last web of the rail 2-1 and the rail head 1 of following web of the rail 2-2 and alloy steel are welded into complete shaped steel along shaped steel vertical (short transverse).The length that should go up web of the rail 2-1 and following web of the rail 2-2 equates that not necessarily it is long slightly perhaps to go up web of the rail 2-1, perhaps descends web of the rail 2-2 long slightly, and it is isometric also perhaps to go up web of the rail 2-1 and following web of the rail 2-2, decides as required.
Referring to Fig. 3: this compound railway shaped steel has the flange of rail 3, the web of the rail 2 and rail head 1, the rail head 1 and the web of the rail 2 are the alloy steel material, the flange of rail 3 is PD3 steel matter, and the flange of rail 3 of PD3 steel and the web of the rail 2 and the rail head 1 of alloy steel are welded into complete shaped steel along shaped steel vertical (short transverse).
Embodiment 4
Referring to Fig. 4 and Fig. 5: this compound railway shaped steel be along shaped steel laterally (length direction) at the local segment welding alloy steel of whole section PD3 shaped steel.This structure mainly is according to the wear condition of whole section PD3 shaped steel local segment and the welding alloy steel, reach increase the service life, anti abrasive purpose.
Above-mentioned PD3 steel matter is U75V.
The utility model not only helps the development and the leap of regional economy, more helps the lifting of China railways industry technology level and strengthens competitiveness in the international market.
Claims (5)
1. a compound railway shaped steel has the flange of rail, the web of the rail and rail head, it is characterized in that: vertical or transverse weld forms described shaped steel along shaped steel by alloy steel and PD3 steel.
2. compound railway shaped steel according to claim 1 is characterized in that: the vertical welding of described shaped steel is the rail head welding with the web of the rail and the flange of rail and the alloy steel of PD3 steel.
3. compound railway shaped steel according to claim 1 is characterized in that: the vertical welding of described shaped steel is with the last web of the rail of the following web of the rail of PD3 steel and the flange of rail and alloy steel and rail head welding.
4. compound railway shaped steel according to claim 1 is characterized in that: the vertical welding of described shaped steel is with the web of the rail of the flange of rail of PD3 steel and alloy steel and rail head welding.
5. compound railway shaped steel according to claim 1 is characterized in that: described shaped steel transverse weld is the local segment welding alloy steel at whole section PD3 shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201402930U CN201634959U (en) | 2010-03-19 | 2010-03-19 | Composite railway section steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201402930U CN201634959U (en) | 2010-03-19 | 2010-03-19 | Composite railway section steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201634959U true CN201634959U (en) | 2010-11-17 |
Family
ID=43079445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201402930U Expired - Fee Related CN201634959U (en) | 2010-03-19 | 2010-03-19 | Composite railway section steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201634959U (en) |
-
2010
- 2010-03-19 CN CN2010201402930U patent/CN201634959U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20140319 |