CN101844568A - Wearing pad for axle box of railway wagon - Google Patents
Wearing pad for axle box of railway wagon Download PDFInfo
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- CN101844568A CN101844568A CN 201010166025 CN201010166025A CN101844568A CN 101844568 A CN101844568 A CN 101844568A CN 201010166025 CN201010166025 CN 201010166025 CN 201010166025 A CN201010166025 A CN 201010166025A CN 101844568 A CN101844568 A CN 101844568A
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Abstract
The invention discloses a wearing pad for an axle box of a railway wagon. The wearing pad is used between a carrying saddle and a side frame of the axle box and comprises a pad main body, wherein the pad main body comprises a base plate and projecting flanges on both sides of the base plate; the length of the base plate between the two flanges is adapted to the width of the carrying saddle, and the width of the base plate is adapted to that of the side frame; and the base plate of the pad main body is provided with a conductive copper pillar which passes through the base plate. The wearing pad prevents direct friction between the side frame and the carrying saddle so as to reduce friction coefficient and enable a vehicle to make a turn rapidly and flexibly, so that the wearing pad has a certain function of accelerating the speed of a train and improves the safety of speed acceleration of the vehicle. Secondly, the side frame is not directly contacted with the carrying saddle but is in friction with the wearing pad, so the abrasion losses of the side frame and the carrying saddle are reduced, the service lives of the side frame and the carrying saddle are greatly prolonged and the maintenance cost of the vehicle is lowered.
Description
Technical field
The present invention relates to a kind of wear-resistant pad, especially a kind of wear-resistant pad that is used for axle box of railway wagon.
Background technology
Railway goods train bogie is installed in two-wheeled to last, mainly is made up of three-major-items such as a side frames and bolster.Side frames is installed on the two axles by two axle boxes respectively.Axle box be enclosed within fifth wheel on the axle journal to the parts of truck frame or two axle car car body, its effect is to give car body weight and loading transfer wheel right, lubricated axle journal is reduced friction, and reduces running resistance.Axle box device is pressed the bearing type that is adopted, and is divided into plain bearing axle box device and rolling bearing axis case apparatus two classes.Early stage rolling stock adopts the plain bearing axle box device, and 20 beginnings of the century began rolling bearing axis case apparatus on probation, now replaced the plain bearing axle box device gradually.The used antifriction-bearing box of rolling bearing axis case apparatus has three kinds on cylinder, circular cone and sphere.
On lorry, except that some adopts column type rolling bearing axis case apparatus, newly make lorry and mainly adopt sealed type cone rolling axle box device.The cone rolling two ends have sealing arrangement, are adapter above the outer ring, are contained in the truck side frame drawing strickle guide, play the loading transfer effect, and the bearing outside no longer includes journal box body; Thereby this structure is called " no axle box bearing device ".The adapter of this axle box and the friction of bogie side frame direct contact, and friction coefficient is bigger, causes vehicle dumb when turning, and speed is slow.And bogie side frame and adapter abrasion amount are bigger, have reduced both service life, thereby cause vehicle behind the operation certain hour, need repairing or change adapter or bogie side frame, and expense is than higher.
Summary of the invention
The technical problem to be solved in the present invention provides and a kind ofly can effectively reduce the wear-resistant pad that adapter and bogie side frame worn-down are used for axle box of railway wagon.
For solving the problems of the technologies described above, the technical solution used in the present invention is: this wear-resistant pad is used between the adapter and bogie side frame of axle box, and it includes the pad main body; Described pad main body includes the rib of backing plate and backing plate both sides projection; The backing plate length between two ribs and the width of adapter adapt, and the width of backing plate and the width of bogie side frame adapt; On the backing plate of pad main body, be provided with the conduction copper column that runs through backing plate.
As a preferred embodiment of the present invention, described backing plate is a double-decker, and the upper strata is the wearing layer that high-abrasive material is made, and lower floor is the enhancement layer that pre-soaked resin glue glass woven fabric is made; The both sides of the wearing layer formation rib that raises up wherein.
Preferred high-abrasive material adopts the following weight proportion raw material to make: 25～35 parts of sepiolite fibres, 2.5～3.5 parts of glass fibres, 6～10 parts of kaolin, 4～6 parts of wollastonite fibres, 13～19 parts of granular graphites, 1.5～2.5 parts in red copper cotton, 0.5～1.5 part of titanium dioxide, 4～6 parts of scale graphites.
Preparation method's of the present invention processing step is: the raw material of (1), high-abrasive material was 160～170 ℃ of oven dry 15～25 hours, and cooling mixes then;
(2), the raw material of the high-abrasive material after will drying is 65～85 ℃ of preheatings 40～50 minutes, then 75～85 ℃ of preheatings 40～50 minutes;
(3), the raw material of the high-abrasive material after die cavity adds pre-soaked resin glue glass woven fabric, impregnation Chopped fiber and preheating successively, pressing mold; The demoulding can obtain filling up main body;
In the pressing mold process, mould temperature control: 220～240 ℃ of patrixes, 190～210 ℃ of counterdies;
Pressure control: 20～25Mpa;
Dwell time: 40～60 minutes;
(4), conduction copper column passed and is fixed on the pad main body, can obtain this wear-resistant pad.
Further, the pad main body that described step (3) obtains also will be carried out post-processing: will fill up main body and be put in the baking oven, temperature rises to 195～205 ℃, is incubated 1 hour; Rise to 225～235 ℃ of insulations 6 hours again; In baking oven, be cooled to naturally then and take out after being lower than 60 ℃.
Adopt the beneficial effect that technique scheme produced to be: after using the present invention; bogie side frame and adapter have been protected; make not direct friction of bogie side frame and adapter; friction coefficient between having reduced; vehicle can fast and flexible turning; thereby speed-raising also plays a role to train, has promoted the safety of vehicle speed-raising.Next is exactly a not direct contact of bogie side frame and adapter, but and wear-resistant pad produce friction, reduced both abrasion losies, thereby prolonged both service life greatly, reduced the service expenditure of vehicle.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a birds-eye view of the present invention.
The specific embodiment
By Fig. 1, shown in Figure 2, originally be used for the wear-resistant pad of axle box of railway wagon, this wear-resistant pad is used between the adapter and bogie side frame of axle box, and it comprises pad main body and conduction copper column 5; The pad main body is the rib 3 that is provided with in the both sides of a square backing plate 4 with the strip bulge of backing plate 4 one; The backing plate length between two ribs 3 and the width of adapter adapt, and the width of backing plate and the width of bogie side frame adapt; Conduction copper column 5 runs through and is fixed on the backing plate 4; Vehicle can produce static because of friction in operational process, therefore be provided with conduction copper column with the conduction of current of bogie truck to ground, prevent the short circuit of vehicle electric current and load the danger of inflammable and explosive product.This wear-resistant pad fills up it between adapter and bogie side frame in use, and adapter drops between two ribs to prevent that lorry from causing coming off of wear-resistant pad when moving.Shown in Figure 1, the backing plate 4 of this wear-resistant pad is a double-decker, and the upper strata is the wearing layer 1 that high-abrasive material is made, and lower floor is the enhancement layer 2 that pre-soaked resin glue glass woven fabric is made; Wherein the both sides of wearing layer 1 upwards form rib 3.
Embodiment 1: the preparation technology of this wear-resistant pad is:
(1), the raw material of high-abrasive material is 165 ℃ of oven dry 120 hours, cooling mixes then; High-abrasive material adopts the raw material of following weight: sepiolite fibre 30kg, glass fibre 3kg, kaolin 8kg, wollastonite fibre 5kg, granular graphite 16kg, red copper cotton 2kg, titanium dioxide 1kg, scale graphite 5kg.
(2), the raw material of the high-abrasive material after will drying is 75 ℃ of preheatings 45 minutes, then 80 ℃ of preheatings 45 minutes.
(3), the raw material of the high-abrasive material after die cavity adds pre-soaked resin glue glass woven fabric, impregnation Chopped fiber and preheating successively, pressing mold; The demoulding can obtain filling up main body;
In the pressing mold process, mould temperature control: 230 ℃ of patrixes, 200 ℃ of counterdies;
Pressure control: 25Mpa;
Dwell time: 50 minutes.
Then, will fill up main body and be put in the baking oven, temperature rises to 200 ℃, is incubated 1 hour; Rise to 230 ℃ of insulations 6 hours again; Take out after in baking oven, being cooled to 50 ℃ naturally then.
(4), conduction copper column passed and is fixed on the pad main body, can obtain this wear-resistant pad.
Embodiment 2: the preparation technology of this wear-resistant pad is:
(1), the raw material of high-abrasive material is 160 ℃ of oven dry 25 hours, cooling mixes then; High-abrasive material adopts the raw material of following weight: sepiolite fibre 25kg, glass fibre 2.5kg, kaolin 10kg, wollastonite fibre 4kg, granular graphite 19kg, red copper cotton 2.5kg, titanium dioxide 1.5kg, scale graphite 4kg.
(2), the raw material of the high-abrasive material after will drying is 65 ℃ of preheatings 50 minutes, then 85 ℃ of preheatings 40 minutes.
(3), the raw material of the high-abrasive material after die cavity adds pre-soaked resin glue glass woven fabric, impregnation Chopped fiber and preheating successively, pressing mold; The demoulding can obtain filling up main body;
In the pressing mold process, mould temperature control: 220 ℃ of patrixes, 190 ℃ of counterdies;
Pressure control: 25Mpa;
Dwell time: 60 minutes.
Then, will fill up main body and be put in the baking oven, temperature rises to 195 ℃, is incubated 1 hour; Rise to 235 ℃ of insulations 6 hours again; Take out after in baking oven, being cooled to 55 ℃ naturally then.
(4), conduction copper column passed and is fixed on the pad main body, can obtain this wear-resistant pad.
Embodiment 3: the preparation technology of this wear-resistant pad is:
(1), the raw material of high-abrasive material is 170 ℃ of oven dry 15 hours, cooling mixes then; High-abrasive material adopts the raw material of following weight: sepiolite fibre 35kg, glass fibre 3.5kg, kaolin 6kg, wollastonite fibre 6kg, granular graphite 13kg, red copper cotton 1.5kg, titanium dioxide 0.5kg, scale graphite 6kg.
(2), the raw material of the high-abrasive material after will drying is 85 ℃ of preheatings 40 minutes, then 75 ℃ of preheatings 50 minutes.
(3), the raw material of the high-abrasive material after die cavity adds pre-soaked resin glue glass woven fabric, impregnation Chopped fiber and preheating successively, pressing mold; The demoulding can obtain filling up main body;
In the pressing mold process, mould temperature control: 240 ℃ of patrixes, 210 ℃ of counterdies;
Pressure control: 20Mpa;
Dwell time: 40 minutes.
Then, will fill up main body and be put in the baking oven, temperature rises to 205 ℃, is incubated 1 hour; Rise to 235 ℃ of insulations 6 hours again; Take out after in baking oven, being cooled to 45 ℃ naturally then.
(4), conduction copper column passed and is fixed on the pad main body, can obtain this wear-resistant pad.
Adopt the wear-resistant pad of following size to test: the length 163mm of backing plate between two ribs, the width 156mm of backing plate, plate thickness 8mm, wearing layer thickness 3 ± 1mm; Rib width 128mm, rib height 28mm.
Test example 1: the product friction coefficient test of this wear-resistant pad.
Test method: on the planar friction experimental engine of Ministry of Railways's approval, carrying out, adopting the test method of conventional planar friction experimental engine.What test usefulness is that No. 45 steel plates, heat treatment hardnesses are that 47HRC～52HRC, surface roughness Ra are less than 1.6 μ m to the mill body.Test ambient temperature must remain on 23 ℃ ± 2 ℃, and relative humidity must remain on 50% ± 5%.The sample status adjustment time is no less than 8h.Carry out official test after this wear-resistant pad product as prescribed pre-grinding 2000 times, keep the friction pair temperature in the process of the test at 25 ℃ ± 5 ℃.
Test results: wearing layer 0.30～0.40, enhancement layer 〉=0.40.
Test example 2: this cleat materials friction coefficient test.
Test method: on pin disc type frictional testing machine, carry out, adopt the test method of conventional pin disc type frictional testing machine.Carry out (23 ℃ ± 2 ℃ of temperature, humidity 50% ± 5%) aptitude tests after the status adjustment by GB/T2918.
Test results: wearing layer 0.25～0.45, enhancement layer 〉=0.40;
Abrasion loss (cm
3/ Nm): body≤4 * 10
-8, to the mill body≤2 * 10
-9
Test example 4: wearing layer and enhancement layer interlayer adhesion in this wear-resistant pad.
Test method: adopt universal testing machine, testing sequence and test fixture meet GB/T1450.1 (glass epoxy interlaminar shear strength test method).
Test results: wearing layer and enhancement layer interlayer adhesion 〉=3000N.
Test example 5: this wear-resistant pad rib anti-shearing force.
Test method: adopt universal testing machine and conventional anti-shearing force test method.
Test results: rib anti-shearing force 〉=20KN.
Test example 6: the high temperature resistant test of this wear-resistant pad.
Test method: this wear-resistant pad product is placed in the baking oven, progressively is warming up to 200 ℃, is incubated after 3 hours to take out, and wearing layer and enhancement layer all must not have defectives such as distortion, foaming, coking, cracking, and must not separate between two-layer.
Experimental result: this wear-resistant pad resistance to elevated temperatures all 〉=200 ℃.
Test example 6: adopt GB/T1033 plastic density relative density test method to detect wearing layer density, its density is all at 1.8～2.4g/cm after testing
3Scope in.
Test example 7: adopt GB/T1043 rigid plastic tube strutbeam impact test method to detect the unnotched impact strength of enhancement layer.
Experimental result: unnotched impact strength (23 ℃) 〉=100kJ/m
2Unnotched impact strength (50 ℃) 〉=100kJ/m
2
Test example 8: wearing layer pulling strengrth.
Test method: the mensuration section 1 of GB/T1040.1 plastic tensile performance: general provisions.
Experimental result: pulling strengrth 〉=120MPa.
Test example 9: wearing layer ball indentation hardness.
Test method: GB/T3398 baton round indentation hardness test method, adopt the baton round indentation hardness tester.
Experimental result: wearing layer ball indentation hardness 〉=100N/mm
2
Test example 10: the thermal weight loss dissociation temperature of this wear-resistant pad.
Test method: test cell adopts nitrogen protection, 10 ℃/min of temperature rise, and highest temperature is no more than 900 ℃, gets the initial temperature of decomposition.
Experimental result: thermal weight loss dissociation temperature 〉=300 ℃.
Test example 11: this wear-resistant pad repeated impact test.
Test method: adopt 30 tons of hydraulic fatigue machines, maximum impact force 200KN loads waveform: sinusoidal waveform, loading frequency 2Hz～5Hz impacts number of times 1 * 10
6
Test results: after vertical impact is tested 1,000,000 times, do not have delamination, crackle between wearing layer and the enhancement layer, wearing layer and enhancement layer do not have fragmentation, fall piece.
Test example 12: this wear-resistant pad lateral shear fatigue test.
Test method: adopt 30 tons of hydraulic fatigue machines.Sample is put into frock, to test specimen applied load 100KN, and be installed on the experimental engine table top, the pressure head of experimental engine actuator is connected with the middle steel plate of test frock, and the actuator pressure head applies push-pull effort to middle steel plate.The amplitude, waveform, frequency and the number of times that load see Table 1.
Amplitude, waveform, frequency and number of times that table 1 loads
| Test specimen clamping load P | ??100KN |
| Load amplitude | ??±10(mm) |
| Load waveform | Sinusoidal waveform |
| Loading frequency | ??0.2Hz |
| Load number of times | ??1.0×10 5 |
Test results: behind the lateral shear fatigue test 100,000 times, two axle box wear-resistant pads must not rupture, and two ribs crackle should not occur, fall piece or fracture.
Claims (6)
1. wear-resistant pad that is used for axle box of railway wagon, this wear-resistant pad is used between the adapter and bogie side frame of axle box, and it is characterized in that: it includes the pad main body; Described pad main body includes the rib of backing plate and backing plate both sides projection; The backing plate length between two ribs and the width of adapter adapt, and the width of backing plate and the width of bogie side frame adapt; On the backing plate of pad main body, be provided with the conduction copper column that runs through backing plate.
2. the wear-resistant pad that is used for axle box of railway wagon according to claim 1 is characterized in that: described backing plate is a double-decker, and the upper strata is the wearing layer that high-abrasive material is made, and lower floor is the enhancement layer that pre-soaked resin glue glass woven fabric is made; The both sides of the wearing layer formation rib that raises up wherein.
3. the wear-resistant pad that is used for axle box of railway wagon according to claim 2 is characterized in that: described high-abrasive material adopts the following weight proportion raw material to make: 25～35 parts of sepiolite fibres, 2.5～3.5 parts of glass fibres, 6～10 parts of kaolin, 4～6 parts of wollastonite fibres, 13～19 parts of granular graphites, 1.5～2.5 parts in red copper cotton, 0.5～1.5 part of titanium dioxide, 4～6 parts of scale graphites.
4. the wear-resistant pad that is used for axle box of railway wagon according to claim 3, it is characterized in that the weight proportion of described raw material is: 30 parts of sepiolite fibres, 3 parts of glass fibres, 8 parts of kaolin, 5 parts of wollastonite fibres, 16 parts of granular graphites, cotton 2 parts of red copper, 1 part of titanium dioxide, 5 parts of scale graphites.
5. claim 3 or the 4 described preparation methods that are used for the wear-resistant pad of axle box of railway wagon is characterized in that the processing step of this method is: the raw material of (1), high-abrasive material was 160～170 ℃ of oven dry 15～25 hours, and cooling mixes then;
(2), the raw material of the high-abrasive material after will drying is 65～85 ℃ of preheatings 40～50 minutes, then 75～85 ℃ of preheatings 40～50 minutes;
(3), the raw material of the high-abrasive material after die cavity adds pre-soaked resin glue glass woven fabric, impregnation Chopped fiber and preheating successively, pressing mold; The demoulding can obtain filling up main body;
In the pressing mold process, mould temperature control: 220～240 ℃ of patrixes, 190～210 ℃ of counterdies;
Pressure control: 20～25Mpa;
Dwell time: 40～60 minutes;
(4), conduction copper column passed and is fixed on the pad main body, can obtain this wear-resistant pad.
6. the preparation method who is used for the wear-resistant pad of axle box of railway wagon according to claim 5 is characterized in that, the pad main body that described step (3) obtains also will be carried out post-processing: will fill up main body and be put in the baking oven, temperature rises to 195～205 ℃, is incubated 1 hour; Rise to 225～235 ℃ of insulations 6 hours again; In baking oven, be cooled to naturally then and take out after being lower than 60 ℃.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101660250A CN101844568B (en) | 2010-05-10 | 2010-05-10 | Wearing pad for axle box of railway wagon |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101660250A CN101844568B (en) | 2010-05-10 | 2010-05-10 | Wearing pad for axle box of railway wagon |
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| CN101844568B CN101844568B (en) | 2011-09-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050129A (en) * | 2010-12-28 | 2011-05-11 | 河北辛集腾跃实业有限公司 | Wear-resistant pad of axle box of rail wagon |
| CN102050128A (en) * | 2010-12-28 | 2011-05-11 | 河北辛集腾跃实业有限公司 | Polymer composite side bearing wear plate |
| CN102514587A (en) * | 2011-12-02 | 2012-06-27 | 南车眉山车辆有限公司 | Elastic pad of bearing saddle |
| CN105015566A (en) * | 2015-07-31 | 2015-11-04 | 株洲时代新材料科技股份有限公司 | Safety bracket used for linear motor railway train and production method thereof |
| CN108290583A (en) * | 2015-05-13 | 2018-07-17 | 内维斯工业有限责任公司 | Rail truck roller bearing adapter mattress system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6234083B1 (en) * | 1998-07-21 | 2001-05-22 | Transdyne, Inc. | Resilient clip-on wear plate |
| US20070084377A1 (en) * | 2005-10-14 | 2007-04-19 | Myers James C | Railway truck bearing adapter |
| CN201095368Y (en) * | 2007-11-15 | 2008-08-06 | 齐齐哈尔轨道交通装备有限责任公司 | Axle box elastic cushion |
| CN201240386Y (en) * | 2008-06-13 | 2009-05-20 | 镇江铁科橡塑制品有限公司 | Conductive center plate abrasion disk for lorry |
| CN201347080Y (en) * | 2008-12-30 | 2009-11-18 | 南车二七车辆有限公司 | Meter-gauge bogie for freight-car |
| CN201419711Y (en) * | 2009-07-16 | 2010-03-10 | 中国北车集团沈阳机车车辆有限责任公司 | Low power action bogie |
-
2010
- 2010-05-10 CN CN2010101660250A patent/CN101844568B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6234083B1 (en) * | 1998-07-21 | 2001-05-22 | Transdyne, Inc. | Resilient clip-on wear plate |
| US20070084377A1 (en) * | 2005-10-14 | 2007-04-19 | Myers James C | Railway truck bearing adapter |
| CN201095368Y (en) * | 2007-11-15 | 2008-08-06 | 齐齐哈尔轨道交通装备有限责任公司 | Axle box elastic cushion |
| CN201240386Y (en) * | 2008-06-13 | 2009-05-20 | 镇江铁科橡塑制品有限公司 | Conductive center plate abrasion disk for lorry |
| CN201347080Y (en) * | 2008-12-30 | 2009-11-18 | 南车二七车辆有限公司 | Meter-gauge bogie for freight-car |
| CN201419711Y (en) * | 2009-07-16 | 2010-03-10 | 中国北车集团沈阳机车车辆有限责任公司 | Low power action bogie |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050129A (en) * | 2010-12-28 | 2011-05-11 | 河北辛集腾跃实业有限公司 | Wear-resistant pad of axle box of rail wagon |
| CN102050128A (en) * | 2010-12-28 | 2011-05-11 | 河北辛集腾跃实业有限公司 | Polymer composite side bearing wear plate |
| CN102050128B (en) * | 2010-12-28 | 2012-05-23 | 河北辛集腾跃实业有限公司 | Polymer composite side bearing wear plate |
| CN102050129B (en) * | 2010-12-28 | 2012-05-23 | 河北辛集腾跃实业有限公司 | Wear-resistant pad of axle box of rail wagon |
| CN102514587A (en) * | 2011-12-02 | 2012-06-27 | 南车眉山车辆有限公司 | Elastic pad of bearing saddle |
| CN108290583A (en) * | 2015-05-13 | 2018-07-17 | 内维斯工业有限责任公司 | Rail truck roller bearing adapter mattress system |
| CN108290583B (en) * | 2015-05-13 | 2019-12-13 | 内维斯工业有限责任公司 | Rail car bogie roller bearing adapter pad system |
| CN105015566A (en) * | 2015-07-31 | 2015-11-04 | 株洲时代新材料科技股份有限公司 | Safety bracket used for linear motor railway train and production method thereof |
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| CN101844568B (en) | 2011-09-28 |
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Address after: The city of Xinji East Street 052360 city in Hebei province Shijiazhuang City No. 0159 Patentee after: HEBEI TENGYUE RAILWAY EQUIPMENT CO.,LTD. Address before: 052360 Hebei city of Shijiazhuang province Xinji East Street Hebei Xinji anding prance Industrial Co. Ltd. Patentee before: HEBEI XINJI TENGYUE INDUSTRIAL CO.,LTD. |
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Effective date of registration: 20230506 Address after: 050000 No. 0159 Shifu East Street, Xinji City, Shijiazhuang City, Hebei Province Patentee after: HEBEI TENGYUE RAILWAY EQUIPMENT CO.,LTD. Patentee after: Hebei Tengyue Railway Vehicle Parts Technology Co.,Ltd. Address before: 052360 No. 0159 Shifu East Street, Xinji City, Shijiazhuang City, Hebei Province Patentee before: HEBEI TENGYUE RAILWAY EQUIPMENT CO.,LTD. |
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