Issue 42/2013 - New lubricating bar to help wheels "extend life"

Recently, the two products BSF-1 and BSF-2 of composite solid lubrication bars developed by Zhejiang Baosheng Railway New Material Technology Co.
, Ltd.
entered the "Detailed List of Suppliers Allowed"
of Beijing Railway Bureau.

The product is designed, developed and produced in accordance with imported locomotive products after the sixth speed increase of the railway, the locomotive traction load increases and the driving speed increases, and can be installed in the Harmony electric locomotive, diesel locomotive, diesel locomotive modified after speeding up and urban rail transit and other projects
.
At present, the products have been used
in Beijing, Xiangyang, Fengtai, Ankang and other locomotive depots, Tianjin, Nanjing subway and coal transportation special line wheel rails.
The use results have proved that the average wear of the wheel flange of the machine can be reduced by 41%, the service life of the wheel can be extended by one medium repair period than the original, which can save a lot of manpower, material resources and millions of yuan of maintenance costs, the effect is obviously better than the performance of similar products, reaching the domestic leading level, and can also meet the special solid lubrication needs
in the fields of chemical, energy, machinery and military industry.

At present, the product has passed the metal chemical inspection station of the product quality supervision and inspection center of the Ministry of Railways to meet the technical requirements, and passed the expert review of scientific and technological achievements of the Science and Technology Commission of Beijing Railway Bureau, and its key technology has obtained 7 patents
.

The material is a new type of polymer lubrication material that replaces grease fluid lubrication with interfacial lubrication, which can replace the current lubrication material to lubricate and protect the wheel rim, and has the characteristics of
anti-extrusion and strong adhesion.
The bar adopts a rectangular double-layer composite structure with soft inside and hard outside, and the outer layer has a hard texture to ensure wear resistance and strength; The inner layer is more flexible to ensure adhesion and lubricity with the wheel flange
.
Installed in specific equipment, through constant pressure contact on the wheel edge of high-speed driving, due to the action of friction force continuously form a lubrication transfer film, to achieve the role of
wear reduction lubrication.
According to reports, researchers adopt a material design method combining solid and liquid, integrate the advantages of grease lubrication and solid lubrication, and solve the problem of "oil wedge" and adhesion; At the same time, the sandwich double-layer solid lubrication rod composite structure is designed, which not only ensures wear resistance and strength, but also takes into account adhesion and lubricity; In addition, they use flame retardant, modified and degradable nanomaterials to improve the comprehensive performance
of composite solid lubrication rods.

The product is suitable for S-shaped mountain lines with many curves, small curve radius and large wheel flange wear, so as to achieve the purpose of reducing wheelset replacement, reducing wheel flange and wheel rail wear, and can replace lubricating oil, grease and imported solid lubrication products
.
(Ren)