Developed Brake Pads for Domestic Trains


Brake for Trains Native Produce Improved: production done abroad since 1988 that the high cost of imported composite brake shoe in Turkey, was completely produced locally with the support of TUBITAK.
From the 1860s with the invention of steam locomotives, cast iron (pig) brake shoes were used to allow the trains to brake on the railways. Cast iron brake shoes were replaced by composite brake shoes from the mid-20th century. The lightness of composite brakes, reducing noise, not creating sparks, low wear rates and long life have made it more common. imported from abroad made for the production of brake system in Turkey, TUBITAK MAM Materials Institute, TCDD, was fully come to life through domestic production and the private sector in collaboration with TULOMSAS. Providing information about the system, the project executive Dr. Mehmet Güneş stated that they are proud to produce these shoes, which can be produced by several countries in the world, locally.
Turkey's railways is increasing the use of composite pads imported from abroad by explaining that since the 90s and the sun used on virtually all trains because of its superior properties, "TCDD annual brake shoe needs around 300 thousand pieces. Turkey's 2023 targets include railways in the transport. Considering this situation, the need for brake shoes is expected to reach millions in the coming years. ”
Two years of planning, 3 years in R & D activities at the end explaining that managed to develop a composite braking system for the first time indigenous capabilities in Turkey sun, this gave the following information about the technology: "Turkey was not manufactured solve somehow this technology until the end of the study. Various attempts have been made, but somehow it has not been successful. However, the domestic production composite brake shoe, which has succeeded with our latest work, consists of twenty different materials coming together. It provides advantages over imported products due to its 20% performance increase, its lifetime up to six months, its lightness, quiet operation and low cost. ”
In addition to all these benefits, Güneş said, “The brake shoes, which have a huge market share in the world and which can only be produced by a few countries, can be made an important contribution to the economy by exporting abroad.”
Topuz: "European Standard Brake System"
Professor of Yıldız Technical University, one of the consultants of the project. Dr. ahmet Turkey Knob in the composite brake system in Turkey in terms of the project to demonstrate the feasibility stressed the importance locally.
Explaining that composite brakes are composed of many components such as different abrasives, lubricants, reinforcement elements, Topuz said, "Our country has a brake that can be produced locally and has European standards."
Title: “Train is Equal Brake”
TCDD Branch Manager Mustafa Eser stated that the view “train is equal to brake” outweighs the railroads and explained that the distance from which the train will stop is more important than the speed.
Eser reported that TCDD requires a large number of its staff only to replace cast iron brake shoes every two to three days, and also requires high labor costs.
Explaining that TCDD started composite brake technology, which is widely used in the world, in 1988 on E8000 and E14000 suburban trains, Eser said that they have been exploring the feasibility of these brakes for 10 years.
Indicating that they started the planning of a comprehensive scientific study about five years ago, Eser said, “It was necessary to carry out a long-term R&D study for these brakes to be implemented in a train. We started with a wheel first. Then we successfully completed field tests with bogie, wagon and full train set. After the field tests, the project, which was successfully completed with the support of TÜBİTAK, was transferred to the industry and mass production of the train brake pad started locally. ”
Title: göre 75 is lighter than peak brake shoes Eser
Eser gave the following information about the superiorities of domestic composite brakes: “Corrosion resistance of fiber-reinforced composite materials, providing heat, sound and electrical insulation also provide an advantage for their respective fields of use. Tensile and bending strength of composites is much higher than many metallic materials. Composites are not damaged by low and high temperature weather conditions, corrosion and most chemical effects. Wheel wear is less than peak brake shoes. It is 75 percent lighter than cast brake shoes. Since it reduces workmanship and friction, it has increased the working times of the wagons. Composite brake shoe compound will negatively affect human health; Asbestos, lead, zinc or other harmful elements are not used in metallic or compound form. Composite brake shoes do not cause malfunctions in the electrical systems of locomotives, signaling, electrification and locomotives caused by pig brake shoe iron powders. ”
Noting that the work started to change brake shoes every 8-12 months in ore wagons, every 12-14 months in bogie freight wagons and every 8-12 months in passenger wagons, the work continues, "Our organization, 30-35 He saved a million dollars. ”

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