Plaque de moulage ferroviaire de haute qualité pour bogie dans un train de locomotive

Introduction of High-quality Railway Castings Plate

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 Railway Castings Plate for Bogie

From the perspective of the mechanical properties of the center plate, en même temps, 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 Functions

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 railway castings 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, réduire la consommation d'énergie en 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 à 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 de Railway Castings Plate for Bogie

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 railway castings core unit adopts an aviation-grade titanium alloy locking device, which can reduce the replacement operation time from the traditional 72 hours to 8 heures. The service life of self-lubricating graphene composite material gaskets has been extended to 1.2 millions de kilomètres. Combined with an online monitoring system, condition-based maintenance has truly replaced periodic maintenance.

The Manufacturing Process de Railway Castings Plate for Bogie

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 Railway Castings Plate for Bogie

With the development of intelligent railway, the fourth generation of railway castings 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, conception mécanique, 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 Plate for Railway Bogie in Train

Poly-sac + boîte en carton + caisse en bois/palette, selon la demande du client

Profil de l'entreprise

Luoyang Fonyo Heavy Industries Co., Ltée. a été fondée en 1998, couvre une superficie de 72 600㎡, avec plus de 300 employés, 32 techniciens, y compris 5 ingénieurs supérieurs, 11 ingénieurs adjoints, et 16 techniciens. Il a été classé centre technologique d'ingénierie de Luoyang., Technologie Luoyang R&Centre D, et entreprise nationale de haute technologie à plusieurs reprises.
Notre capacité de production est 30,000 tonnes par an. Actuellement, nous produisons principalement de l'acier moulé, fonte (fonte grise, fonte ductile, etc.), traitement du produit fini et assemblage des composants pour locomotive,wagon,trains à grande vitesse, équipement minier,énergie éolienne,etc. Nos produits ont été exportés vers la Russie, les États-Unis, Allemagne, Argentine, Japon, France, Afrique du Sud,Italie et autres pays.

FAQ

T1: Êtes-vous un fabricant ou une société commerciale?
UN:Nous sommes un fabricant. Notre société a été fondée en 1998, avec près de 30 ans d'expérience dans l'industrie du moulage, une superficie totale de 72 600㎡, avec une superficie de construction d'usine de 51 000㎡.
T2. Quels sont vos principaux produits?
UN: Nous nous concentrons principalement sur le moulage d'acier, fonte de fer, usinage du produit fini, et production d'assemblages de composants pour locomotives,wagon,trains à grande vitesse, équipement minier,énergie éolienne,etc..
T3: Avec quelle précision pouvez-vous produire des pièces moulées?
UN: Nous avons la capacité de produire des pièces moulées avec différents procédés de coulée. La production est strictement conforme à la norme ISO 9001, OIN 14001 et ISO45001, EN15085, IRIS.
T4. Pouvez-vous produire selon les échantillons?
 Oui, nous pouvons produire par vos échantillons ou dessins techniques. Nous pouvons également créer des dessins pour vous après avoir reçu vos échantillons.
Q5: Comment effectuez-vous le contrôle qualité avant la livraison?
UN: L'inspection de la qualité est un facteur très important pour garantir la qualité des pièces moulées en acier. Nous suivons 3 temps d'inspection pendant tout le processus de production. Et nous fournirons un rapport de test de matériaux, rapport d'essai dimensionnel, et rapport d'essais de propriétés mécaniques à nos clients avant la livraison.

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