Railway wagon permanent factory nameplate and installation method thereof

By using a stainless steel plate substrate and a fully welded method to fix the nameplates on railway freight cars, the problems of corrosion, detachment, and improper installation of railway freight car nameplates have been solved, ensuring information integrity and readability throughout the entire life cycle.

CN121459680APending Publication Date: 2026-02-03CRRC YANGTZE GRP CO LTD
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Patent Information

Application Number
CN202511806866.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-03
Publication Date
2026-02-03

AI Technical Summary

Technical Problem

Existing railway freight car factory nameplates are prone to corrosion in complex environments such as high humidity and salt spray, are not securely fixed, are easy to fall off, have unreasonable installation locations, affect visibility and readability, and are easily damaged or lost during maintenance, failing to meet the identification requirements throughout the entire life cycle.

Method used

Using a stainless steel plate as the base, the nameplate information is formed through laser cutting, etching, casting or molding processes, and then fully welded and fixed to the non-transfer area of ​​the railway freight car, especially the side beams or end beams of the underframe, to ensure the nameplate's corrosion resistance and vibration resistance.

Benefits of technology

It ensures the integrity and readability of the nameplate throughout its entire life cycle, avoids corrosion, detachment and damage, ensures the continuity and security of information, and meets the 25-year usage requirement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a permanent factory nameplate of a railway wagon and a mounting method thereof, the permanent factory nameplate of the railway wagon comprises a stainless steel plate base body, and nameplate information is arranged on the stainless steel plate base body; the nameplate information adopts one or more of laser cutting hollow fonts, etching concave paint filling fonts, casting fonts or mould pressing fonts; the permanent factory nameplate of the railway wagon is fixed to a non-replacement area of the railway wagon in an all-welding mode. The permanent factory nameplate for the railway freight car is simple and economical in structure, can adapt to severe environments such as high humidity, salt mist and acid rain, meets the service life-cycle service requirement of 25 years, ensures that manufacturing information managed in the service life-cycle of the car is complete, and can well adapt to the existing railway freight car.
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Description

Technical Field

[0001] This invention relates to the technical field of railway freight car manufacturing and marking, and in particular to a permanent factory nameplate for railway freight cars and its installation method. Background Technology

[0002] The manufacturer's nameplate on a railway freight car is an important identifier that records the manufacturing information and maintenance history of the vehicle. It is crucial for the management of the entire life cycle of the vehicle and is an indispensable information foundation for subsequent use, inspection, maintenance, and dispatch. As an identification device that is permanently attached to the vehicle structure, the manufacturer's nameplate plays a key role in the management of railway freight cars throughout their entire life cycle, especially in asset management, fault tracing, technical file maintenance, and operational safety monitoring.

[0003] Currently, such as Figure 1 As shown, existing railway freight car manufacturer nameplates are typically made of traditional metal materials such as cast steel and aluminum alloy, and are installed on the side walls and side beams of the vehicles using fasteners such as rivets and screws. This type of structure was practical in the early days, but with the continuous improvement of vehicle operating environment and management requirements, the original manufacturer nameplate structure has revealed many limitations.

[0004] First, from the perspective of material durability, cast steel and aluminum alloys are highly susceptible to corrosion during long-term operation of railway freight cars, especially in complex environments such as high humidity, salt spray, dust, and extreme temperature differences. This corrosion can lead to blurred lettering and illegible information on the nameplate surface, severely affecting its visibility and readability. Second, traditional rivet or screw fixing methods are prone to loosening or even detachment under long-term vibration, impact, and operating loads. Incidents of factory nameplate detachment are frequent, causing difficulties in vehicle identification and increasing safety hazards in operation and management. Furthermore, some railway freight car factory nameplates are installed on structural parts prone to collisions or replacement during maintenance, such as side walls and end walls. These areas are easily damaged or accidentally removed during maintenance or replacement work, affecting the durability and effectiveness of the nameplates.

[0005] To address the aforementioned issues, some technical solutions attempt to improve the adaptability of nameplates by modifying their structure or materials. For example, Chinese invention patent application number 202110219390.1 discloses a corrosion-resistant insulating nameplate, but this solution only focuses on material properties and does not optimize from the perspective of installation method and location rationality. Similarly, Chinese utility model patent application number 202121535271.9 discloses a nameplate fixing structure, but it is still based on traditional materials and does not consider the maintainability and impact resistance of the installation location, failing to solve the comprehensive performance problem of factory nameplates at the system level.

[0006] Therefore, how to provide a railway wagon permanent factory nameplate with high corrosion resistance, strong fixation reliability and reasonable installation position design to effectively cope with the whole life cycle environmental challenges and meet the high requirements of modern railway equipment for permanent identification of the nameplate has become a technical problem to be solved in the field. SUMMARY

[0007] The present application is proposed to solve the above problems, and aims to provide a railway wagon permanent factory nameplate and an installation method thereof, which can ensure the integrity and readability of the nameplate during the whole service life of the railway wagon, and solve the problems of easy corrosion, easy loss and unreasonable installation position of the existing railway wagon factory nameplate.

[0008] To achieve the above purpose, the first aspect of the present application provides a railway wagon permanent factory nameplate, which comprises a stainless steel plate base body, and the nameplate information is arranged on the stainless steel plate base body. The nameplate information adopts one or more of laser cutting hollow font, etching concave paint filling font, cast font or molded font. The railway wagon permanent factory nameplate is fixed to the non-replacement area of the railway wagon by full welding.

[0009] Further, the stainless steel plate base body is made of 304 stainless steel or 316L stainless steel.

[0010] Further, when the nameplate information adopts laser cutting hollow font or etching concave paint filling font, the stainless steel plate base body adopts a stainless steel plate with a thickness of 5mm or more.

[0011] Further, when the nameplate information adopts cast font or molded font, the stainless steel plate base body adopts a stainless steel plate with a thickness of 8mm or more.

[0012] Further, the laser cutting hollow font adopted by the nameplate information is a hollow font penetrating through the stainless steel plate base body.

[0013] Further, the etching concave paint filling font adopted by the nameplate information comprises an etching groove and an anti-corrosion paint layer filled in the groove.

[0014] Further, the nameplate information comprises manufacturer information, manufacturing time information or equipment model information.

[0015] The second aspect of the present application provides an installation method of the above railway wagon permanent factory nameplate, which comprises the following steps: S1: select a stainless steel plate substrate, at least one of the characters forming processes of hollowing out characters by laser cutting, etching concave paint filling characters, casting characters or molding characters is formed on the stainless steel plate substrate to form a nameplate information, and a permanent factory nameplate of a railway wagon is obtained; S2: determining a non-replacement area of the railway wagon as a mounting position; S3: placing the permanent factory nameplate of the railway wagon in the mounting position; S4: welding the permanent factory nameplate of the railway wagon to the non-replacement area of the railway wagon by full welding.

[0016] Further, in the step S2, the non-replacement area is an area that does not need to be repaired, repaired and replaced in the service life of the railway wagon; the non-replacement area includes the side beam or end beam of the chassis of the railway wagon.

[0017] Further, in the step S4, the full welding method uses continuous weld to completely seal and weld the four peripheral edges of the permanent factory nameplate of the railway wagon to the non-replacement area of the railway wagon.

[0018] Compared with the prior art, the present application has the following beneficial effects: Firstly, the present application uses a stainless steel plate as a substrate, and forms various types of nameplate information on the surface thereof, and combines laser cutting, etching paint filling, casting, molding and other processes to make the nameplate have excellent corrosion resistance, information identification and processing adaptability; in addition, the nameplate is fixed to the non-replacement area of the side beam or end beam of the chassis by full welding, which significantly improves the anti-vibration and anti-falling ability and reduces the risk of loss during use, thereby ensuring the permanent and reliable identification function of the nameplate from the source.

[0019] Secondly, the stainless steel plate substrate of the present application preferably uses 304 stainless steel or 316L stainless steel as the nameplate substrate material, which has stronger weather resistance, corrosion resistance and mechanical strength, and can resist complex corrosion factors such as high humidity, high salt and large temperature difference in the railway transportation environment for a long time, thereby effectively prolonging the service life of the nameplate.

[0020] Thirdly, when the nameplate information adopts laser cutting hollowing or etching concave paint filling characters, the stainless steel plate with a thickness greater than 5mm is selected to further improve the overall strength of the nameplate and the three-dimensional feeling of the characters, so that the characters still have good readability even after being subjected to collision or wear, thereby enhancing the anti-damage and information retention of the nameplate. When the nameplate information adopts casting characters or molding characters, a stainless steel plate with a thickness of 8mm or more is used to strengthen the overall rigidity and appearance stability of the nameplate, so as to ensure that the characters are not easily deformed or flattened during long-term use, thereby improving the stability and recognition of the nameplate.

[0021] Fourthly, the hollowed-out font formed by laser cutting is a penetrating structure penetrating through the stainless steel plate base body, which has clear visibility without relying on ink or paint filling, effectively avoids the problem of identification failure caused by paint peeling, corrosion and fading, and realizes the permanent information carrier of the body.

[0022] Fifthly, the etched concave paint-filled font is provided with an etched groove and an anti-corrosion paint layer, and the anti-corrosion paint is filled in the groove, which has a self-protection function. Even if the surface paint is worn, the paint in the groove can still maintain the integrity of the font, and has visual beauty and durability.

[0023] Sixthly, the installation method of the present application considers the material selection, font process and position selection, and clearly processes the nameplate information by means of hollowing, etching, casting and molding, and selects the non-cutting area of the side beam or end beam of the chassis for installation. Combined with the full welding operation steps, the systematic and standardized operation from design to installation is realized.

[0024] Seventhly, the nameplate is installed in the non-cutting area, which can effectively avoid the disassembly, damage or loss of the nameplate caused by vehicle maintenance, component replacement and other operations, improve the durability of the nameplate, and ensure the continuity and integrity of the information identification of the vehicle in the whole life cycle. The continuous welding seam method is adopted to completely seal and weld the edges of the nameplate, which significantly enhances the fixing strength and sealing performance of the nameplate in long-term operation, prevents water vapor and dust from entering from the joint, avoids the problems of nameplate loosening, rusting and edge lifting, and has high structural firmness and environmental adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a riveting schematic diagram of the existing railway freight car factory nameplate; Figure 2 is a welding schematic diagram of the railway freight car permanent factory nameplate and the railway freight car of the present application; Figure 3 is an example of the hollowed-out font railway freight car permanent factory nameplate of the present application; Figure 4 is an example of the etched concave paint-filled font railway freight car permanent factory nameplate of the present application; Figure 5 is an example of the cast or molded font railway freight car permanent factory nameplate of the present application; In the figure: 1-railway freight car permanent factory nameplate, 2-non-cutting area, 3-existing railway freight car factory nameplate, 4-fastener, 5-welding leg. DETAILED DESCRIPTION

[0026] The implementation of the present application will be described in detail below in conjunction with the implementation examples, but they do not constitute a limitation on the present application, but only serve as an example. At the same time, the advantages of the present application will become clearer and easier to understand through the description.

[0027] As shown in the drawings, Figures 2-5 The permanent factory nameplate 1 of the railway wagon of the present application comprises a stainless steel plate base body, and the nameplate information is arranged on the stainless steel plate base body; the nameplate information adopts one or more of laser cutting hollow font, etching concave paint filling font, cast font or die font. The permanent factory nameplate 1 of the railway wagon is fixed on the non-replacement area 2 of the railway wagon by full welding, and the non-replacement area includes the side sill and end sill of the chassis during the 25-year service life of the railway wagon. The forming process scheme of the laser cutting hollow font, etching concave paint filling font, cast font or die font is suitable for different manufacturing costs and durability requirements.

[0028] The present application adopts the full welding mode of welding instead of riveting with the anti-loss design, and is fixed on the non-replacement area of the side sill and end sill of the chassis during the 25-year service life of the railway wagon through the welding leg 5, thereby avoiding the position disturbed by the maintenance such as factory repair and section repair. The present application solves the problems of the existing railway wagon factory nameplate such as easy corrosion, easy loss and unreasonable installation position, and realizes the complete and readable information during the 25-year service life of the railway wagon, and combines the material, installation, position and process into a unified solution.

[0029] Preferably, the stainless steel plate base body is 304 stainless steel or 316L stainless steel. The stainless steel material can adapt to harsh environments such as high humidity, salt spray and acid rain, and the corrosion resistance is improved, which can meet the use requirements during the 25-year service life of the railway wagon.

[0030] In some embodiments, in order to ensure the firmness of the welding position with the railway wagon and ensure the reliability of the laser cutting hollow font or etching concave paint filling font, when the nameplate information adopts the laser cutting hollow font or etching concave paint filling font, the stainless steel plate base body adopts a stainless steel plate with a thickness of more than 5 mm.

[0031] In some embodiments, in order to ensure the clarity of the cast or die font and ensure that the stainless steel plate base body is not deformed during manufacturing, when the nameplate information adopts the cast font or die font, the stainless steel plate base body adopts a stainless steel plate with a thickness of more than 8 mm. The stainless steel plate with a thickness of more than 8 mm can offset the deformation of the die manufacturing.

[0032] In some embodiments, the laser cutting hollow font adopted by the nameplate information is a hollow font penetrating through the stainless steel plate base body. The font of the etching concave paint filling font, cast or die font is not hollow.

[0033] In some embodiments, the etching concave paint filling font adopted by the nameplate information comprises an etching groove and an anti-corrosion paint layer filled in the etching groove.

[0034] In some embodiments, the nameplate information includes manufacturer information, manufacturing time information, or equipment model information.

[0035] The method for installing the permanent factory nameplate of the railway wagon according to the present application comprises the following steps: S1: Selecting a stainless steel plate base body, forming the nameplate information on the stainless steel plate base body through at least one of the following font forming processes, i.e., laser cutting hollow font, etching concave filled paint font, casting font or die pressing font, to obtain the permanent factory nameplate of the railway wagon; S2: Determining a non-replacement area of the railway wagon as the installation position; the non-replacement area is an area that does not need to be repaired and replaced during the factory repair and section repair in the service life cycle of the railway wagon, including the side beam and end beam of the railway wagon in the 25-year service life cycle.

[0036] S3: Placing the permanent factory nameplate of the railway wagon at the installation position; S4: Fully welding the permanent factory nameplate of the railway wagon on the side beam or end beam of the railway wagon by using continuous weld seams in a full welding manner.

[0037] The permanent factory nameplate of the railway wagon according to the present application can improve corrosion resistance, adapt to harsh environments such as high humidity, salt spray and acid rain, and has a loss-proof design, welding instead of riveting, vibration and impact resistance, maintenance-friendly installation position avoiding easy-to-replace components, avoiding missed installation, full-life application, meeting the 25-year service cycle requirement, and ensuring the integrity of the manufacturing information in the whole life cycle management of the vehicle.

[0038] The above is only a specific embodiment of the present application, and any skilled person in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. The remaining unexplained is the prior art.

Claims

1. A permanent factory nameplate for railway freight cars, characterized in that, The permanent factory nameplate of the railway freight car includes a stainless steel plate base, on which nameplate information is provided; The nameplate information uses one or more of the following: laser-cut hollow fonts, etched concave-filled fonts, cast fonts, or molded fonts. The permanent factory nameplate of the railway freight car is fixed to the non-replacement area of ​​the railway freight car by full welding.

2. The permanent factory nameplate for railway freight cars according to claim 1, characterized in that, The stainless steel plate substrate is 304 stainless steel or 316L stainless steel.

3. The permanent factory nameplate for railway freight cars according to claim 1 or 2, characterized in that, When the nameplate information uses laser-cut hollow fonts or etched concave-filled fonts, the stainless steel plate substrate uses a stainless steel plate with a thickness of 5mm or more.

4. The permanent factory nameplate for railway freight cars according to claim 1 or 2, characterized in that, When the nameplate information uses cast or molded fonts, the stainless steel plate substrate uses a stainless steel plate with a thickness of 8mm or more.

5. The permanent factory nameplate for railway freight cars according to claim 1 or 2, characterized in that, The nameplate information uses laser-cut hollowed-out fonts that penetrate the stainless steel plate substrate.

6. The permanent factory nameplate for railway freight cars according to claim 1 or 2, characterized in that, The nameplate information uses etched concave-filled fonts, which include etched grooves and anti-corrosion paint layers filling the grooves.

7. The permanent factory nameplate for railway freight cars according to claim 1 or 2, characterized in that, The nameplate information includes manufacturer information, manufacturing time information, or equipment model information.

8. A method for installing a permanent factory nameplate on a railway freight car according to any one of claims 1 to 7, characterized in that, Includes the following steps: S1: Select a stainless steel plate substrate, and form nameplate information on the stainless steel plate substrate by laser cutting hollow fonts, etching concave filling fonts, casting fonts or molding fonts, to obtain a permanent factory nameplate for railway freight cars. S2: Determine the non-interchangeable area of ​​the railway freight car as the installation location; S3: Place the permanent factory nameplate of the railway freight car at the installation location; S4: The permanent nameplate of the railway freight car is welded to the non-replacement area of ​​the railway freight car using a full welding method.

9. The installation method according to claim 8, characterized in that, In step S2, the non-replacement area is the area that does not require factory repair, section repair, maintenance or replacement during the service life of the railway freight car; the non-replacement area includes the underframe side beams or end beams of the railway freight car.

10. The installation method according to claim 8, characterized in that, In step S4, the full welding method uses continuous welds to completely seal the four edges of the permanent factory nameplate of the railway freight car to the non-replacement area of ​​the railway freight car.

Citation Information

Patent Citations

  • Corrosion-resistant insulating nameplate

    CN112967592A

  • Nameplate fixing structure

    CN215068948U