High-quality Casting Core Plate for Railway Locomotive Train Bogie

Introduction of Casting Core Plate for Railway Bogie in Train

The railway locomotive core plate, as the core load-bearing component of the train bogie system of rail vehicles, can be regarded as the “mechanical heart” of railway transportation equipment. This seemingly simple circular load-bearing structure actually embodies complex engineering wisdom and undertakes multiple key functions during train operation.

The Features of Casting Core Plate for Railway Bogie in Train

From the perspective of the mechanical properties of the center plate, at the same time, to cope with the three-dimensional space composite load, longitudinal traction produces thousands of thousands of cattle dynamic braking force, centrifugal stress, and the vertical direction of the horizontal curve through dozens of tons of car body static load. Such extreme working conditions impose strict requirements on material properties. Modern core plates generally use high-strength low-alloy cast steel ZG25MnCrNiMo. Through the vacuum degassing refining process, the purity of the material is ensured. Combined with a computer-controlled gradient heat treatment process, the hardness of key parts reaches HB280-320 while maintaining overall toughness.

The Function of Casting Core Plate for Railway Bogie in Train

Realize the function level, the core plate of conical bowl-shaped structure can be rated as the model of the mechanical engineering.

1.Its conical plane inclination Angle of 72°±0.5′ has been optimized through fluid mechanics, which can not only ensure the free rotation of the bogie and the vehicle body but also form a self-stabilizing effect during high-speed operation. The combination of the Casting Core Plate for Railway Bogie in Train 0.8mm hardened layer formed by surface laser quenching and the nano-scale molybdenum disulfide coating keeps the friction coefficient below 0.08, reducing energy consumption by 15% compared with the traditional structure.

2. The specially designed stress diffusion grooves are arranged in a Fibonacci spiral, reducing the local stress concentration coefficient from 3.2 to 1.8, significantly enhancing the fatigue life. Safety redundancy design, modern core plate for railway bogie in train adopts layers of protection system: the main structure is design according to EN15085 standard 4 or higher safety coefficient, surface sets the depth of 0.2 mm acoustic emission crack monitoring network, internal embedded real-time distributed optical fiber sensor monitoring the strain distribution. When the load exceeds the design value by 85%, the piezoelectric ceramic early warning system will trigger a three-level alarm mechanism. This active defense system reduces the incidence of major accidents to less than one in a million.

The Characteristics of Casting Core Plate for Railway Bogie in Train

In the field of vibration control, the dynamic response characteristics of the heart directly affect the ride comfort. The layout of the reinforcing ribs optimized through finite element modal analysis precisely avoids the wheel-rail excitation frequency band (8- 12Hz). Combined with the viscoelastic damping alloy interlayer, the vibration acceleration of the vehicle body is reduced from 0.25g to 0.15g. The newly developed magnetorheological adaptive core disk also incorporates intelligent control technology, which can adjust the stiffness in real time according to the line conditions and instantly increase the lateral binding force by 30% when passing through turnouts. Maintaining the performance of the innovation also deserves attention. The modular quick-change core unit adopts an aviation-grade titanium alloy locking device, which can reduce the replacement operation time from the traditional 72 hours to 8 hours. The service life of self-lubricating graphene composite material gaskets has been extended to 1.2 million kilometers. Combined with an online monitoring system, condition-based maintenance has truly replaced periodic maintenance.

The Manufacturing Process of Casting Core Plate for Railway Bogie in Train

From the perspective of the manufacturing process of a five-axis linkage CNC machine tool processing center plate, the contact surface contour accuracy of 0.01 mm, equal to one 7 of a human hair. The residual stress relief process adopts the spectral harmonic vibration aging technology to keep the residual stress in key parts below 50MPa. The 3D laser scanning inspection system can establish a digital twin model with an accuracy of 0.005mm, providing data support for full life cycle management.

The Development of Casting Core Plate for Railway Bogie in Train

With the development of intelligent railway, the fourth generation of center plate has integrated a multidimensional sensor network, which can collect real-time mechanical parameters of 128 channels, through the calculation of the edge to diagnose abnormal milliseconds. This intelligent upgrade has increased the fault prediction accuracy of the bogie system to 98% and reduced the maintenance cost by 40%. The diameter of metal components less than 1 meter metal components, embodies the material science, mechanical design, and multidisciplinary advanced technology, such as intelligent control, guarded in silence every train’s safety. From the cast iron core of the Beijing-Zhangjiakou Railway to the intelligent core of the Fuxing bullet train, the evolution of this century-old technology is a vivid microcosm of China’s railway’s transformation from catching up to taking the lead.

Package of Casting Core Plate for Railway Bogie in Train

Polybag+Carton box+Wooden case/Pallet, according to customer’s request

Company Profile

Luoyang Fonyo Heavy Industries Co., Ltd. was founded in 1998, covers an area of 72,600㎡, with more than 300 employees, 32 technicians, including 5 senior engineers, 11 assistant engineers, and 16 technicians. It has been rated as Luoyang Engineering Technology Center, Luoyang Technology R&D Center, and National High-tech Enterprise for many times.
Our production capacity is 30,000 tons per year. Currently, we mainly produce cast steel, cast iron (gray iron, ductile iron, etc.), processing of finished product and component assembly for locomotive,railcar,high-speed trains, mining equipment,wind power,etc.Our products have been exported to Russia, the United States, Germany, Argentina, Japan, France, South Africa,Italy and other countries.

FAQS

Q1: Are you a manufacturer or trading company?
A:We are a manufacturer.Our company was founded in 1998, with nearly 30 years in casting industry, a total area of 72,600㎡, with a factory building area of 51,000㎡.
Q2. What are your main products?
A: We primarily focus on steel casting, iron casting, finished product machining, and component assembly production for locomotive,railcar,high-speed trains, mining equipment,wind power,etc.
Q3: How precision can you produce casting parts?
A: We have the capability of producing casting parts with different casting processes. The production is strictly comply with ISO 9001, ISO 14001 and ISO45001,EN15085, IRIS.
Q4. Can you produce according to the samples?
 Yes, we can produce by your samples or technical drawings. We can build drawings for you after we get your samples too.
Q5: How do you do Quality Control before delivery?
A: Quality inspection is a very important factor to guarantee the quality of steel casting parts. We follow 3 times of inspection during the whole production process. And we will provide material testing report, dimensional testing report, and mechanical properties testing report to our clients before delivery.

It you are interested in any products,please feel free to contact us.
Contact:Cathy Xu
Email:sales@railwaypart.com
Mobile:008615515321683