CN1519428A - Electroslag casting made frog nose rail - Google Patents
Electroslag casting made frog nose rail Download PDFInfo
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- CN1519428A CN1519428A CNA031533299A CN03153329A CN1519428A CN 1519428 A CN1519428 A CN 1519428A CN A031533299 A CNA031533299 A CN A031533299A CN 03153329 A CN03153329 A CN 03153329A CN 1519428 A CN1519428 A CN 1519428A
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- rail
- frog
- central body
- electroslag
- heart
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Abstract
An electroslag cast frog rail has a triangular tip end part with convex curves at both sides and lateral sunk screw-bolt hole or lower convex edges, and a root part consisting of two steel rails with screw bolt hole. Said tip end part is made up of high-strength and toughness bainite steel through electroslag casting. Said tip end part and root part are connected by electroslag welding. The spacing irons and wing rails are attached to both side of frog rail to form a fixed frog. Its advantages are high integrity and mechanical performance, and long service life.
Description
Technical field: the present invention is a kind of railroad track parts, central body of frog in a kind of assembled frog, make with the electroslag casting method, be assembled into electroslag smelting casting heart rail fixed railway frog or electroslag smelting casting heart rail movable-point crossing, enter different tracks in order to guided vehicle.
Background technology: existing railway frog is with common rail manufacturing or potassium steel block cast, and potassium steel intensity is low, and casting flaw is many, and application life is short, and potassium steel and rail welding technique are still unresolved good, and solid manganese steel frog is difficult to become gapless track with rail welding; Heart rail with the railway frog of common rail manufacturing is common rail, and is not wear-resisting; Long heart rail and short heart rail are two separated components, use bolted-on, and driving globality stationarity is bad, and is unfavorable for transmitting the gapless track TEMPERATURE FORCE; The bainite steel core rail steel clarity of smelting forging with commonsense method is not high enough, and still fall short of application life, and forging and machine workload are big, the cost height.
Summary of the invention: the objective of the invention is to invent the simple and advanced technology of a kind of technology, good integrity, life-span is long, easily with interval rail welding, the central body of frog that can in the overlength gapless track, use, can manufacture electroslag smelting casting heart rail fixed railway frog, also can manufacture electroslag smelting casting heart rail movable-point crossing.
The heart rail front thigh that makes triangular in shape can be driven a vehicle thereby technical scheme one of the present invention is achieved in that the point main body plane that makes central body of frog; The top of point is processed into the crest curve that matches with railway car wheel tread and wheel rim and is convenient to wheel smoothly by heart rail; Two ends are arranged respectively with the bolt hole of deep gouge in the laterally disposed of point, be convenient to heart rail and wing rail are formed electroslag smelting casting heart rail fixed railway frog by securing member and interval iron bolt; The bottom of point is provided with flange and is convenient to settle trip gear to form the electroslag smelting casting movable-point crossing; The part easy to wear of heart rail idle space is that the point of heart rail is with particularly bainitic steel electroslag smelting casting of high-strength and high-toughness steel, because electroslag casting process combines electroslag remelting and workpiece coagulation forming two procedures, metallurgical quality is good, steel clarity height, the metal structure densification, can make the railway frog long-life, and once-forming heart rail can be exempted complicated forging and amount of machining, reduce manufacturing cost; With two rails of common rail manufacturing by electroslag molten welding and heart rail point is compound is melt into an integral body, thereby make railway frog driving globality stationarity good; The rear portion of electroslag smelting casting central body of frog is with common rail manufacturing, and material is identical with interval rail, make railway frog easily with interval rail welding; Most advanced and sophisticated and heel end fusion line can be butt joint or mitered first two, by electroslag casting process and mold structure decision, adopt diagonal joint to be convenient to electroslag molten welding and play weldering, improve joint quality, the employing butt joint can make mold structure simple.
The heart rail front thigh that makes triangular in shape can be driven a vehicle thereby technical scheme two of the present invention is achieved in that the point main body plane of heart rail; The top of point is processed into the crest curve that matches with railway car wheel tread and wheel rim and is convenient to wheel smoothly by heart rail; Two ends are arranged respectively with the bolt hole of deep gouge in the laterally disposed of point, be convenient to heart rail and wing rail are formed electroslag smelting casting heart rail fixed railway frog by securing member and interval iron bolt; Thereby long heart rail and wing rail are made the heart rail long-life in the part easy to wear of idle space with the high-strength and high-toughness steel manufacturing; Thereby long heart rail and wing rail are made the railway frog good integrity at the intermediate mass that straight strand of idle space wheel track transition portion is linked to be an integral body; With the remainder (18) of long heart rail and a wing rail is that mule carriage part (19) is welded into a continuous rail bar with common rail manufacturing and with intermediate mass (20) at least, thereby can transmit the TEMPERATURE FORCE of gapless track continuously, and make the easy and interval rail welding of heart rail.
One of concrete manufacture method scheme of central body of frog is: 1. the front portion with two strands of rail cuts part rail head and flange of rail formation butt joint women's head-ornaments (6) or diagonal joint (7); 2. since the butt joint women's head-ornaments (6) of two strands of rail or the point (1) of diagonal joint (7) electroslag welding and electroslag smelting casting formation heart rail; 3. central body of frog is annealed; 4. central body of frog is carried out machine and make the requirement of size conforms drawing; 5. central body of frog being heat-treated makes its mechanical performance reach requirement.
Two of the concrete manufacture method scheme of central body of frog is: 1. the front portion with two strands of rail cuts the part rail head and the flange of rail and forms two welding grooves (8) (9) up and down; 2. between the anterior web of the rail of two strands of rail, place at interval iron plate (10) and carry out rail head and the vertical electroslag molten welding of the flange of rail is compound or other welding are fused into integral body with two strands of rail along heart rail axis (11); 3. central body of frog is annealed; 4. central body of frog is carried out machine and make the requirement of size conforms drawing; 5. central body of frog being heat-treated makes its mechanical performance reach requirement.
Central body of frog with the manufacturing of electroslag casting method can be used to make the fixed railway frog: mainly be with central body of frog both sides configuration space iron (13) and wing rail (14), by securing member (16) or further use cement (15) to form electroslag smelting casting heart rail fixed railway frog (Fig. 5), promptly can be used for guided vehicle and enter different tracks.
Central body of frog with the manufacturing of electroslag casting method can be used to make movable-point crossing: mainly be with central body of frog both sides configuration wing rail (14), (3 a) install trip gear (17) forms electroslag smelting casting movable-point crossing (Fig. 6), promptly can be used for guided vehicle and enters different tracks by flange.
The point of central body of frog is in the gap in the frog position, easy to wear, must be with particularly bainitic steel manufacturing of high-strength and high-toughness steel, its electroslag smelting casting material chemical composition has following combination can obtain satisfied mechanical performance: one of combination: 1. basic ingredient is C-0.10% ∽ 0.46%; Si-0.1% ∽ 1.85%; Mn-0.4% ∽ 3.5%; Cr-0.2% ∽ 3.0%; Ni≤3.0%; Mo≤0.8%; Residue is Fe.Two of combination: 2. basic ingredient is C-0.10% ∽ 0.65%; Si≤2.65%; Mn-0.50% ∽ 3.2%; Cr-0.20% ∽ 2.80%; Ni-0.55% ∽ 2.60%; Mo-0.20% ∽ 2.0%; Residue is Fe.
Electroslag smelting casting material chemical composition most preferred embodiment have following combination 1. basic ingredient be C-0.26%; Si-1.85%; Mn-2.05%; Cr-1.95%; Ni-0.11%; Mo-0.46%; Residue is Fe.2. basic ingredient is C-0.26%; Si-1.75%; Mn-1.86%; Ni-3.0%; The Mo-0.50% residue is Fe.3. basic ingredient is C-0.28%; Si-0.50%; Mn-2.22%; Cr-1.60%; Ni-0.10%; Mo-0.60%; Residue is Fe.
Description of drawings: one of embodiment of the invention is shown in accompanying drawing 1,2: among the figure: the point of 1-heart rail; The most advanced and sophisticated triangle of 2-heart rail both sides; The 3-bolt hole; The 3a-flange; The heel of 4-heart rail; The 5-bolt hole; The 6-butt joint; The 7-diagonal joint of accompanying drawing 2.
The specific embodiment: the technical characterictic of its structure is: the point of this central body of frog (1) thus the main body plane heart rail front thigh that makes triangular in shape can drive a vehicle; Its point two upper lateral parts (2) are processed into the crest curve that matches with railway car wheel tread and wheel-rim shape respectively and are convenient to railway wheel smoothly by heart rail; There are two ends to be convenient to heart rail and wing rail to form electroslag smelting casting heart rail fixed railway frog (Fig. 5) with the bolt hole (3) of deep gouge respectively in point laterally disposed by securing member and interval iron bolt; The bottom of point is provided with flange (3a) and is convenient to settle trip gear (17) to form electroslag smelting casting movable-point crossing (Fig. 6); The heel of this heart rail (4) is made up of two one steel rails with H-shape cross section, and the section configuration that makes heart rail heel have rail is convenient to be connected with interval rail or weld, and can transmit the TEMPERATURE FORCE of gapless track continuously, is adapted at using in the overlength gapless track; Two one steel rails are provided with assembling and are convenient to railway frog with bolt hole (5) and are connected with interval rail with clamping plate by securing member; Most advanced and sophisticated and heel end is melt into an integral body can make heart rail good integrity, is convenient to railway car wheel smoothly by heart rail and raising vehicle switch crossing speed; The triangle point (1) of heart rail thus with high-strength and high-toughness steel particularly bainitic steel electroslag smelting casting manufacturing make the railway frog long-life, adopt the point of electroslag smelting casting method once-forming heart rail can exempt complicated forging and reduce the machine workload.Most advanced and sophisticated and heel end fusion line is that diagonal joint (7) is convenient to electroslag molten welding and is played weldering raising joint quality.
Description of drawings: the embodiment of the invention two shown in accompanying drawing 3,4: accompanying drawing 3 is used for the rail spare of electroslag smelting casting heart rail for processing; In the accompanying drawing 3,4: the point of 1-heart rail; The most advanced and sophisticated triangle of 2-heart rail both sides; The 3-bolt hole; The 3a-flange; The heel of 4-heart rail; The 5-bolt hole; The 7-diagonal joint; 8,9-welds groove; 10-is iron plate at interval; 11-heart rail axis; 12-electroslag smelting casting material; The 13-interval iron; The 14-wing rail; The 15-cement; The 16-securing member; The 17-trip gear.
The specific embodiment: the technical characterictic of its structure is: the point of this central body of frog (1) thus the main body plane heart rail front thigh that makes triangular in shape can drive a vehicle, its point two upper lateral parts (2) are processed into the crest curve that matches with railway car wheel tread and wheel-rim shape respectively and are convenient to railway car wheel smoothly by heart rail, have two ends to be convenient to heart rail and wing rail are formed electroslag smelting casting heart rail fixed railway frog (Fig. 5) by securing member and interval iron bolt with the bolt hole (3) of deep gouge respectively in the laterally disposed of point, the bottom of point is provided with flange (3a) and is convenient to settle trip gear (17) to form electroslag smelting casting movable-point crossing (Fig. 6); The heel of this heart rail (4) is made up of two one steel rails with H-shape cross section, and the section configuration that makes heart rail heel have rail is convenient to be connected with interval rail or weld, and can transmit the TEMPERATURE FORCE of gapless track continuously, is adapted at using in the overlength gapless track; Two one steel rails are provided with assembling and are convenient to railway frog with bolt hole (5) and are connected with interval rail with clamping plate by securing member; Most advanced and sophisticated and heel end is melt into an integral body can make heart rail good integrity, is convenient to railway car wheel smoothly by heart rail and raising vehicle switch crossing speed; The point of heart rail (1) thus with high-strength and high-toughness steel particularly bainitic steel electroslag smelting casting manufacturing make the railway frog long-life; The front portion of two strands of rail cut the part rail head and the flange of rail and form two wide welding grooves (8) (9) up and down and carry out the electroslag smelting casting weldering and can save expensive founding wlding material, the particularly heel of heart rail (4) and the point (1) of heart rail can be simplified whole heart rail when material is identical Technology for Heating Processing; Between the anterior web of the rail of two strands of rail, place interval iron plate (10) and can locate melt material and strengthening structure.
Description of drawings: the embodiment of the invention three as shown in Figure 7: Fig. 7 is the structure chart of heart rail; Among the figure: the long heart rail of 18-; The mule carriage part short limb rail of 19-wing rail; The 20-intermediate mass; The 21-flangeway.
The specific embodiment: the technical characterictic of its structure is: heart rail be one comprise a long heart rail (18) and a wing rail be at least mule carriage part (19) and intermediate mass (20) continuous rail bar, thereby make heart rail can transmit the TEMPERATURE FORCE of gapless track continuously.The top of the intermediate mass of heart rail (20) has flangeway (21) and is convenient to the wheel side thigh and passes through.The point (1) of intermediate mass (20) thus the main body plane heart rail front thigh that makes triangular in shape can drive a vehicle, its point two upper lateral parts (2) are processed into the crest curve that matches with railway car wheel tread and wheel-rim shape respectively and are convenient to railway car wheel smoothly by heart rail, have two ends to be convenient to heart rail and wing rail are formed electroslag smelting casting heart rail fixed railway frog (Fig. 8) by securing member and interval iron bolt with the bolt hole (3) of deep gouge respectively in the laterally disposed of point; The heel of this heart rail (4) has H-shape cross section, makes heart rail be convenient to be connected with interval rail or weld, and can transmit the TEMPERATURE FORCE of gapless track continuously, is adapted at using in the overlength gapless track; Heart rail at the rapid wear part intermediate mass (20) of idle space thus make heart rail long-life, good integrity with whole manufacturing of high-strength and high-toughness steel.The two ends (22) of the intermediate mass of heart rail (20) have the shape of common rail profile, and what be convenient to the long heart rail remainder (18) that will make with common rail and a wing rail is that mule carriage part (19) and intermediate mass (20) weld at least.
With embodiment three-core rail configuration wing rail (23), short limb rail (24), short heart rail (25) and securing member (26) or further form electroslag smelting casting heart rail fixed railway frog (as shown in Figure 8) and can be used for guided vehicle and enter different tracks with cement.
Electroslag smelting casting central body of frog driving good integrity of the present invention, the life-span increases substantially, and technology is simple, low cost of manufacture, advanced technology easily with interval rail welding, can be used economic benefit and obvious social benefit in the overlength gapless track.
Claims (10)
1. central body of frog, it is characterized in that: the point of this central body of frog (1) plane is triangular in shape, its triangle two upper lateral parts (2) are processed into the crest curve that matches with railway car wheel tread and wheel-rim shape respectively, be provided with two ends in leg-of-mutton side and be provided with flange (3a) with the bolt hole (3) or the leg-of-mutton bottom of deep gouge respectively, the heel of this central body of frog (4) is made up of two one steel rails with H-shape cross section, most advanced and sophisticated and heel end is melt into an integral body, and most advanced and sophisticated and heel end fusion line is butt joint (6) or diagonal joint (7).
2. central body of frog, it is characterized in that: the point of central body of frog (1) mainly be with high-strength steel particularly the bainitic steel electroslag smelting casting or further forging machine process, heel (4) is to be combined into a whole central body of frog with rail by electroslag molten welding or other welding method and point.
3. central body of frog as claimed in claim 1 or 2 is characterized in that: 1. the central body of frog manufacturing step for cutting the front portion of two strands of rail the part rail head and the flange of rail and forming two welding grooves (8) (9) up and down; 2. between the anterior web of the rail of two strands of rail, place interval iron plate (10) and carry out rail head and the vertical electroslag molten welding of the flange of rail or other welding two strands of rail are fused into integral body along heart rail axis (11); 3. central body of frog is annealed; 4. central body of frog is carried out machine; 5. central body of frog is heat-treated.
4. central body of frog as claimed in claim 1 or 2 is characterized in that: the central body of frog manufacturing step forms butt joint women's head-ornaments (6) or mitered women's head-ornaments (7) for 1. the front portion of two strands of rail being cut the part rail head and the flange of rail; 2. form the point (1) of central body of frog since two strands of rail joint faces (6) or (7) electroslag welding of mitered women's head-ornaments and electroslag smelting casting; 3. central body of frog is annealed; 4. central body of frog is carried out machine; 5. central body of frog is heat-treated.
5. central body of frog as claimed in claim 1 or 2, its purposes is: mainly with central body of frog both sides configuration space iron (13) and wing rail (14), form electroslag smelting casting heart rail fixed railway frog or mainly central body of frog both sides configuration wing rail (14) and trip gear (17) are formed the electroslag smelting casting movable-point crossing by securing member (16).
6. central body of frog, it is characterized in that: heart rail is one and comprises long heart rail (18), straight strand wing rail and the short limb rail (19) of wheel tread contact portion and the continuous rail bar of intermediate mass (20), the point of heart rail (1) plane is triangular in shape, its triangle two upper lateral parts (2) are processed into the crest curve that matches with wheel tread and wheel-rim shape respectively, and intermediate mass (20) has flangeway (21) and two ends (22) have the shape of common rail profile.
7. central body of frog, it is characterized in that: the intermediate mass of heart rail (20) mainly be with high-strength steel particularly bainitic steel electroslag smelting casting or forging machine process, long heart rail of right-hand member (18) and left end short limb rail (19) are to be combined into a whole central body of frog by electroslag molten welding or other welding method and intermediate mass (20).
8. as claim 6 or 7 described central body of frog, its purposes is: mainly central body of frog is disposed wing rail (23), short limb rail (24), short heart rail (25) and securing member (26) or further form electroslag smelting casting heart rail fixed railway frog with cement.
9. as claim 6 or 7 described central body of frog, it is characterized in that: 1. the central body of frog manufacturing step for processing growth heart rail (18), short limb rail (19) respectively with rail; 2. begin the intermediate mass (20) of electroslag welding and electroslag smelting casting formation heart rail from long heart rail (18) joint face (28); 3. 4. short limb rail (19) and intermediate mass (20) welding are annealed to central body of frog; 5. central body of frog is carried out machine; 6. central body of frog is heat-treated.
10. as claim 1 or 2 or 6 or 7 described central body of frog, it is characterized in that: be used for the central body of frog electroslag smelting casting, the material of electroslag molten welding or other welding methods has one of following chemical composition combination: 1. basic ingredient is C-0.10% ∽ 0.46%; Si-0.1% ∽ 1.85%; Mn-0.4% ∽ 3.5%; Cr-0.2% ∽ 3.0%; Ni≤3.0%; Mo≤0.8%; Residue is Fe.2. basic ingredient is C-0.10% ∽ 0.65%; Si≤2.65%; Mn-0.50% ∽ 3.2%; Cr-0.20% ∽ 2.80%; Ni-0.55% ∽ 2.60%; Mo-0.20% ∽ 2.0%; Residue is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031533299A CN1519428A (en) | 2002-12-10 | 2003-08-11 | Electroslag casting made frog nose rail |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02290830.7 | 2002-12-10 | ||
| CN02290830 | 2002-12-10 | ||
| CNA031533299A CN1519428A (en) | 2002-12-10 | 2003-08-11 | Electroslag casting made frog nose rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1519428A true CN1519428A (en) | 2004-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031533299A Pending CN1519428A (en) | 2002-12-10 | 2003-08-11 | Electroslag casting made frog nose rail |
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| Country | Link |
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| CN (1) | CN1519428A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392140C (en) * | 2006-08-03 | 2008-06-04 | 燕山大学 | Tungsten aluminium containing bainite forged steel special for railroad frog |
| CN102409581A (en) * | 2011-11-12 | 2012-04-11 | 中铁宝桥集团有限公司 | Alloy steel assembly of frog, point rail and wing rails |
-
2003
- 2003-08-11 CN CNA031533299A patent/CN1519428A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392140C (en) * | 2006-08-03 | 2008-06-04 | 燕山大学 | Tungsten aluminium containing bainite forged steel special for railroad frog |
| CN102409581A (en) * | 2011-11-12 | 2012-04-11 | 中铁宝桥集团有限公司 | Alloy steel assembly of frog, point rail and wing rails |
| CN102409581B (en) * | 2011-11-12 | 2014-08-13 | 中铁宝桥集团有限公司 | Alloy steel assembly of frog, point rail and wing rails |
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| WD01 | Invention patent application deemed withdrawn after publication |