CN105887583B - A kind of compound slider bed platen of forging molding railway high speed track switch - Google Patents
A kind of compound slider bed platen of forging molding railway high speed track switch Download PDFInfo
- Publication number
- CN105887583B CN105887583B CN201610326758.3A CN201610326758A CN105887583B CN 105887583 B CN105887583 B CN 105887583B CN 201610326758 A CN201610326758 A CN 201610326758A CN 105887583 B CN105887583 B CN 105887583B
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- CN
- China
- Prior art keywords
- slider bed
- bed platen
- base material
- forging molding
- welding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
- E01B7/02—Tongues; Associated constructions
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
Abstract
The present invention discloses a kind of compound slider bed platen of forging molding railway high speed track switch, and lower floor is base material, and the upper strata is to cover material；Base material is rolling carbon steel sheet；It is welding wire layer to cover material, welding wire is welded on base material using gas-shield automatic welding technique embryo material is made；Embryo material is heated up to 900 degrees Celsius with mould forging molding again；The forging molding slider bed platen of the present invention not only has good obdurability, but also has excellent comprehensive technical performance.
Description
Technical field
Specifically a kind of railway high speed track switch, more specifically it is that a kind of railway is high the present invention relates to railway equipment field
The fast compound slider bed platen of track switch built-up welding.
Background technology
Slider bed platen is the important component of railway high speed track switch, is the security platform for carrying point tongue and bullet train,
The utilization of slider bed platen direct relation high-speed switch and bullet train and safe for operation.At present, high-speed switch slider bed platen design
Material is ZG230-45, and such a slider bed platen proves to have the following disadvantages by practice：
1st, strength character is relatively low, wears no resistance, and pressure mill groove easily occurs in the working face for carrying tongue；
2nd, the higher 0.23-0.30 of coefficient of friction, coefficient of friction further increases after corrosion, cause switch convert resistance compared with
Greatly；
3rd, corrosion resistance difference is easily upper becomes rusty；
4th, frequent oiling and polishing are needed；
5th, the long workload of curing time is big, and maintenance cost is higher；
6th, the hidden danger that personal safety accident occurs be present.
To ensure the application safety of track switch, railway department of various countries has put into substantial amounts of fund, to high-speed switch slider bed platen
Conduct in-depth research, its main purpose is：
1st, strengthen strength character, enough anti-wear performances and the shock resistance of slider bed platen, eliminate pressure mill groove；
2nd, ensure the enough hardness of slider bed platen working face, reduce coefficient of friction, reduce switch convert resistance；
3rd, the corrosion resistance of slider bed platen is improved, ensures not limit in the phase under arms and becomes rusty and possess good utilization
Energy；
4th, the maintenance time to slider bed platen is reduced, reduces maintenance cost；
5th, eliminate safe hidden trouble, ensure traffic safety.
The content of the invention
In order to solve the above-mentioned technical problem, overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of performance is excellent
Good, the cost-effective compound slider bed platen of railway high speed track switch built-up welding, the forging molding slider bed platen not only have good
Obdurability, but also there is excellent comprehensive technical performance.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of compound slider bed platen of forging molding railway high speed track switch, slider bed platen are arranged on bottom plate, the slider bed
Tongue or core rail are set on platen, and the slider bed platen is that upper and lower double-layer structure is combined, and the lower floor is base material, described
Upper strata is to cover material；It is characterized in that the preparation method of the slider bed platen is：Base material is rolling carbon steel sheet；It is welding wire layer to cover material,
Welding wire is welded on base material using gas-shield automatic welding technique embryo material is made；Embryo material is heated up to 900 degrees Celsius with mould again
Has forging molding；The material composition of the welding wire is in mass ratio：C0.05-0.08%, Cr13.8-14.2%, Si0.45-
0.52%, Mo0.73-0.81%, Mn1.1-1.4%, surplus Fe；The preparation method of the welding wire is：Will be each according to mentioned component
Smelted after material mixing through 1500-1600 degrees Celsius and be cast into steel billet, steel billet is then forged into rod by 900 degrees Celsius
Material, then by being drawn into diameter 0.8-1.6mm steel wire as wlding.
The base material is Q235 steel plates.
The slider bed platen gross thickness >=40mm, base material thickness >=cover material thickness.
The slider bed platen interface shear strength >=285MPa.
Slider bed platen surface hardness HB >=320.
Slider bed platen surface coefficient of friction≤0.23.
The trachoma in welding process is avoided, base material is improved and covers bond strength >=285MPa of material.
The manufacturing process flow of the compound slider bed platen of forging molding railway high speed track switch includes：Base material prepares and surface is pre-
Handle → cover material smelt casting steel billet is made → and cover material and be forged into round steel bar → cover specification → gas shield that material is drawn into welding wire
Automatic welding composite testing → welding current, voltage, the recombination velocity of gas shield welding, composite thickness, compound width regulate and control → is forged into
Type → machining → quality inspection technique；The gas-shield automatic welding technology process parameter is as follows：Recombination current 160-
Between 170A, voltage 16-20 volt, arc length 20, inductance 0.
It is an advantage of the invention that：
1st, advanced technology, function admirable, cost-effective, reduction manufacturing cost 5-10%；
2nd, high-wear resistance is 3-5 times of ZG230-45, eliminates pressure mill groove；
3rd, good obdurability does not ftracture, excellent shock resistance and welding performance；
4th, coefficient of friction it is low≤0.23, switch convert resistance is small, and switch point housing is good；
5th, good corrosion resistance is not easy rust, lacks oiling or exempts from oiling；
6th, good environmental adaptability, few maintenance or non-maintaining；
7th, maintenance 35% is reduced；
8th, the hidden danger for triggering stranger's body security incident is eliminated；
9th, it is reliable and stable with performance safety, extend service life, ensure that train operating safety is steady.
10th, by forging molding, the trachoma in welding recombination process is avoided.
11st, by forging, the dosage of steel and the allowance of machining are more saved.
Brief description of the drawings
Fig. 1 is that tongue structural representation is set on slider bed platen；
Fig. 2 is that core rail structural representation is set on slider bed platen；In figure, 1 is rail, and 2 be tongue, and 3 cover material, and 4 be base material,
5 be bottom plate, and 6 be core rail.
Embodiment
The present invention is illustrated below in conjunction with the accompanying drawings, and as shown in Figure 1 and Figure 2, slider bed platen is arranged on bottom plate 5, the cunning
Tongue 2 or core rail 6 are set on table plate, the slider bed platen is that upper and lower double-layer structure is combined, and the lower floor is base material 4,
The upper strata is to cover material 3.
The preferred technical solution of the present invention is：Base material is Q235 steel plates, thickness >=20mm, tensile strength >=450MPa,
Yield strength >=245MPa；It is the self-control wlding containing Cr >=13% to cover material.
The upper and lower double-layer structure complex method of slider bed platen is Gas Shielded welding.The submerged arc overlay welding technological process
Including：Base material prepares and surface preparation → cover material smelt casting steel billet is made → is forged into the rule of round steel bar → be drawn into welding wire
Lattice → gas shield welding composite testing → welding current, voltage, the recombination velocity of gas shield welding, composite thickness, compound width regulation and control → forging
Cause type → machining → quality inspection technique.
The slider bed platen gross thickness >=40mm, the thickness of base material 4 >=cover the thickness of material 3.
The slider bed platen shear strength >=285MPa.
Slider bed platen surface hardness HB >=320.
Slider bed platen coefficient of friction≤0.23.
For example following embodiments of the preparation method of slider bed platen；
Embodiment 1
1st, base material prepares：Base material is rolling carbon steel sheet Q235；
2nd, material preparation is covered：Material is covered for self-control welding wire, is covered material and is smelted and casting steel billet → being forged into round steel bar → is made is drawn into
The specification of welding wire；Composite material composition is in mass ratio：C0.05%, Cr13.8%, Si0.45%, Mo0.73%,
Mn1.1%, surplus Fe；Each material is smelted through 1500 degrees Celsius according to mentioned component and is cast into steel billet, then passes through steel billet
Cross 900 degrees Celsius and be forged into bar, then by being drawn into diameter 0.8mm steel wire as wlding.
3rd, gas-shield automatic welding technique：By clad steel plate design technical requirements, recombination current 160A, voltage 16 it
Between, arc length 20, inductance 0；
4th, the forging molding of slider bed platen：Clad steel plate is heated up to 900 degrees Celsius with mould forging molding；
5th, slider bed platen machine, which adds, makes：Work is added by the technical requirements machine of slider bed platen design.
Embodiment 2
1st, base material prepares：Base material is rolling carbon steel sheet Q235；
2nd, material preparation is covered：Material is covered for self-control welding wire, is covered material and is smelted and casting steel billet → being forged into round steel bar → is made is drawn into
The specification of welding wire；Composite material composition is in mass ratio：C0.08%, Cr14.2%, Si0.52%, Mo0.81%,
Mn1.4%, surplus Fe；Each material is smelted through 1600 degrees Celsius according to mentioned component and is cast into steel billet, then passes through steel billet
Cross 900 degrees Celsius and be forged into bar, then by being drawn into the steel wire of diameter 1.6 as wlding.
3rd, gas-shield automatic welding technique：By clad steel plate design technical requirements, recombination current 170A, voltage 20 it
Between, arc length 20, inductance 0；
4th, the forging molding of slider bed platen：Clad steel plate is heated up to 900 degrees Celsius with mould forging molding；
5th, slider bed platen machine, which adds, makes：Work is added by the technical requirements machine of slider bed platen design.
Embodiment 3
1st, base material prepares：Base material is rolling carbon steel sheet Q235；
2nd, material preparation is covered：Material is covered for self-control welding wire, is covered material and is smelted and casting steel billet → being forged into round steel bar → is made is drawn into
The specification of welding wire；Composite material composition：C0.06%, Cr14%, Si0.50%, Mo0.78%, Mn1.2%, surplus Fe；
Each material is smelted through 1550 degrees Celsius according to mentioned component and is cast into steel billet, is then forged into steel billet by 900 degrees Celsius
Bar, then by being drawn into the steel wire of diameter 1.6 as wlding.
3rd, gas-shield automatic welding technique：By clad steel plate design technical requirements, recombination current 170A, voltage 20 it
Between, arc length 20, inductance 0；
4th, the forging molding of slider bed platen：Clad steel plate is heated up to 900 degrees Celsius with mould forging molding；
5th, slider bed platen machine, which adds, makes：Work is added by the technical requirements machine of slider bed platen design.
In the present invention, employ self-control welding wire and formed and cover material, be to ensure that slider bed platen meets mechanical property requirements.It is former
Reason is as follows：
Q235 is carbon structural steel, and its hardening heat is 950 DEG C, and in welding process, Mo, Mn in welding wire are solvable
In Q235, weld layer quenching degree is improved, especially when being heated up to 900 degrees Celsius with mould forging molding, improves cunning
The mechanical property requirements of table plate.Mo, Mn content should meet ratio disclosed in this invention, otherwise, can not realize slider bed platform
The comprehensive mechanical performance requirement of plate, as Mn content is more than 1.2%, then the metal grain fast growth of weld layer, forging molding
When easy the defects of being layered；And the parameter of welding procedure is to ensure that trace element can be with the metallic element of base material in predetermined temperature
The lower change that metallographic structure occurs of degree, temperature, time when such as welding are unsatisfactory for, and Mo, Mn fail to be completely dissolved, then are unfavorable for carrying
High weld layer quenching degree.
Claims (1)
1. a kind of compound slider bed platen of forging molding railway high speed track switch, slider bed platen are arranged on bottom plate, the slider bed platform
Tongue or core rail are set on plate, the slider bed platen is that upper and lower double-layer structure is combined, and the lower floor is base material, it is described on
Layer is to cover material；It is characterized in that the preparation method of the slider bed platen is：Base material is rolling carbon steel sheet；It is welding wire layer to cover material, profit
Welding wire is welded on base material with gas-shield automatic welding technique embryo material is made；Embryo material is heated up to 900 degrees Celsius with mould again
Forging molding；The material composition of the welding wire is in mass ratio：C0.05-0.08%, Cr13.8-14.2%, Si0.45-0.52%,
Mo0.73-0.81%, Mn1.1-1.4%, surplus Fe；The preparation method of the welding wire is：Each material is mixed according to mentioned component
Smelted after conjunction through 1500-1600 degrees Celsius and be cast into steel billet, steel billet is then forged into bar by 900 degrees Celsius, then pass through
The steel wire for being drawn into diameter 0.8-1.6mm is crossed as wlding；The base material is Q235 steel plates, thickness >=20mm, tensile strength
>=450MPa, yield strength >=245MPa；The slider bed platen gross thickness >=40mm, base material thickness >=cover material thickness；The cunning
Table board interface shear strength >=285MPa；Slider bed platen surface hardness HB >=320；The slider bed platen surface friction system
Number≤0.23；Base material and the bond strength >=285MPa for covering material；The compound slider bed platen of forging molding railway high speed track switch
Manufacturing process flow include：Base material prepares and surface preparation, and → cover material smelting and casting steel billet is made → covers material and is forged into round steel
Rod → cover material be drawn into specification → gas-shield automatic welding composite testing → welding current of welding wire, voltage, gas shield welding it is compound
Speed, composite thickness, compound width regulation and control → forging molding → machining → quality inspection technique；The gas shield is automatic
Welding technological parameter is as follows：Between recombination current 160-170A, voltage 16-20 volt, arc length 20, inductance 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326758.3A CN105887583B (en) | 2016-05-17 | 2016-05-17 | A kind of compound slider bed platen of forging molding railway high speed track switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326758.3A CN105887583B (en) | 2016-05-17 | 2016-05-17 | A kind of compound slider bed platen of forging molding railway high speed track switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105887583A CN105887583A (en) | 2016-08-24 |
| CN105887583B true CN105887583B (en) | 2018-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610326758.3A Active CN105887583B (en) | 2016-05-17 | 2016-05-17 | A kind of compound slider bed platen of forging molding railway high speed track switch |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914022A (en) * | 2018-08-02 | 2018-11-30 | 李庆杰 | A kind of preparation method of cast-sintering slider bed platen |
| CN108914119A (en) * | 2018-08-02 | 2018-11-30 | 李庆杰 | A kind of preparation method incuding cladding slider bed platen |
| CN110306384B (en) * | 2019-07-01 | 2021-07-20 | 株洲安成实业有限公司 | Composite sliding bed bedplate for railway turnout and manufacturing method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4007734A1 (en) * | 1990-03-10 | 1991-09-12 | Metallgesellschaft Ag | SLIDING BEARING |
| CN101704169B (en) * | 2009-11-23 | 2011-07-06 | 中国航空工业集团公司北京航空材料研究院 | Welding wire for gas shielded welding of aging martensitic stainless steel |
| CN102363251A (en) * | 2011-10-13 | 2012-02-29 | 中国船舶重工集团公司第七二五研究所 | High-toughness all-austenitic stainless steel welding wire |
| JP6141642B2 (en) * | 2013-01-16 | 2017-06-07 | オイレス工業株式会社 | Sliding plate and floor plate for turnout |
| CN203639757U (en) * | 2014-01-09 | 2014-06-11 | 王永升 | Railway high-speed turnout composite sliding bed platen |
| CN204385568U (en) * | 2014-11-25 | 2015-06-10 | 辽宁恒泰铁路器材制造有限公司 | The sliding table of a kind of bimetallic liquid cladding die forging track switch |
| CN204919229U (en) * | 2015-07-23 | 2015-12-30 | 宋焯 | Wear -resisting anticorrosive smooth movable bed |
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Address after: 110000 room 1111, No. 7-1, Tianci street, Hunnan New District, Shenyang City, Liaoning Province Patentee after: SHENYANG DINGRAN NEW MATERIAL CO., LTD. Address before: A street in Shenyang Hunnan District of Liaoning province 110000 City Room 1111 No. 7-1 Patentee before: SHENYANG DINGRAN NEW MATERIAL CO., LTD. |
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