Wear and Durable Brake Shoe of Train Locomotive Brake Slipper - Поставщик железнодорожного литья Китай

ПАРАМЕТРЫ ПРОДУКТА

Заводской опыт:с 1998Обработка Ремесла:Чертежи → изготовление пресс-форм → литье под давлением → черновая обработка → обработка на станке с ЧПУ → обработка поверхности → проверка продукта → упаковка → доставка Инспекция:1.Собственное литейное производство: 100% проверка критического размера; 100% по внешности. 2.Проверка третьей стороной доступна по требованию Сертификаты: ИСО9001, ИСО14001, В 15085 и ИРИСКастомизация: OEM,ОДМ

ЗАПРОСИТЬ ЦЕНУ

Описание

ЗАПРОСИТЬ ЦЕНУ

Описание

Introduction of Rail Train Brake Shoe

The brake part that directly rubs the wheels to stop the train is called a slipper. A shingle-shaped brake block made of cast iron or other material that holds the wheel tread tightly during braking and stops the wheel by friction. In this process, the braking device needs to convert the enormous kinetic energy into heat and dissipate into the atmosphere. The braking effect is good or bad, but mainly depends on the dissipation ability of friction heat energy. When using this braking method, the friction area of the brake shoe is small, and most of the heat load is borne by the wheel. The higher the train speed, the greater the heat load on the wheels when braking. If cast iron brake shoe is used, the temperature can melt the brake shoe; Even if the more advanced synthetic brake shoe is used, the temperature will be as high as 400~450 ° C. When the temperature of the wheel tread increases to a certain extent, it will make the tread wear, crack or peel, which will affect the service life and also affect the driving safety. It can be seen that the traditional tread brake shoe can not meet the needs of high-speed trains.

The Features of Rail Train Brake Shoe

(1)good thermal stability. The resin decomposition temperature is high; the actual measurement temperature of 377 degrees Celsius

(2) compression elasticity is low, the noise is small, uniform temperature distribution.

(3)Viscosity is strong, both the aging resistance of the resin and rubber toughness, thermal decay rate is low, restorative

(4)friction resistance, and the surface has good reproducibility.

The Material Evolution of Rail Train Brake Shoe

From the cast iron brake shoe for composite materials across the early train with cast iron material, its high hardness and wear resistance can meet the demand of foundation braking, but is easy to produce metal spark, braking noise, the serious defects such as wheel wear. Along with the development of high-speed railway and overloaded freight, shoe materials has experienced three major innovations:

(1)Powder metallurgy composite material by fund of copper, iron, and graphite powder, ceramic particles sintering molding, this kind of materials with both high friction coefficient and high temperature resistance. Например, the copper base brake shoe can still maintain stable friction performance at 500℃ high temperature, and the wear rate of the wheel is reduced by more than 40%, which has become the standard choice for high-speed rail trains.

(2)Carbon fiber reinforced resin base material according to the characteristics of the city railway train frequent start-stop, carbon/aramid fiber hybrid enhanced organic synthetic brake shoe stand out. Its density is only 1/3 of cast iron, but it can maintain excellent braking performance in wet and oil pollution environment, and achieve environmental protection effects of noise reduction of more than 15 децибелы.

(3)Functionally gradient materials (FGM) by laser cladding technology in preparation of substrate surface gradient ceramic layer, the brake shoe friction layer and heat dissipation performance orientation optimization. The experimental data show that the thermal decay resistance of this kind of brake shoe is increased by 60% under emergency braking conditions, and the service life is extended to 300,000 километры.

Application scenarios of Rail Train Brake Shoe

Adjust measures to local conditions of customized solution gave rise to different operating environment difference product matrix: cold high iron: adopting adding mos2 enhanced brake shoe at low temperature, the friction coefficient of deviation of 0.02 or less – 50 ℃ environment. Long and large ramp freight: tungsten copper composite brake shoe with forced air cooling system, continuous braking for 20 minutes temperature controllable within 400℃. Urban rail trains: nonmetallic brake shoe and magnetic track brake work together, achieve “sparkless brake”, perfect adaptation of the underground tunnel environment.

Performance Feature
Friction Stability (μ value 0.25-0.45)	In the temperature range of -40 ° C to 800 ° C, the fluctuation rate should be less than 10% to avoid the risk of sliding caused by brake “thermal recession”.
Wear Compatibility	The wear ratio between brake shoe and wheel should be controlled within 1:8, which not only ensures its own durability, but also reduces the frequency of wheel rotation repair.
Fatigue Resistance	It is necessary to pass more than 100,000 high-frequency braking tests, and the surface crack growth rate should be less than 0.1mm/ 10,000 раз.
Environmental Compliance	The EU REACH regulation requires that the copper content is less than 5%, and harmful substances such as asbestos and lead are zero detected.
Energy Dissipation Efficiency	The brake shoe of a heavy-duty train needs to have the ability to absorb 30MJ/kg of energy instantaneously, which is equivalent to the impact of a 2-ton weight falling from a height of 150 meters
Application Scenarios
High Cold Environment and High Speed Rail	adopting adding mos2 enhanced brake shoe at low temperature, the friction coefficient of deviation of 0.02 or less – 50 ℃ environment
Long and Large Ramp Freight	tungsten copper composite brake shoe with forced air cooling system, continuous braking for 20 minutes temperature controllable within 400℃.
Urban Rail Trains	nonmetallic brake shoe and magnetic track brake work together, achieve “sparkless brake”, perfect adaptation of the underground tunnel environment.

Пакет Rail Train Brake Shoe

Полиэтиленовый пакет+картонная коробка+деревянный чехол/поддон, по желанию клиента

Профиль компании

Лоянская компания Fonyo Heavy Industries Co., ООО. была основана в 1998, занимает площадь 72 600 кв.м., с более чем 300 сотрудники, 32 техники, включая 5 старшие инженеры, 11 помощники инженера, и 16 техники. Он был оценен как Лоянский инженерно-технологический центр., Лоян Технология Р&Д-центр, и национальное высокотехнологичное предприятие много раз.
Наша производственная мощность составляет 30,000 тонн в год. В настоящее время, мы в основном производим литой стали, чугун (серый чугун, ковкий чугун, и т. д.), обработка готовой продукции и сборка комплектующих. продукция экспортируется в Россию., Соединенные Штаты, Германия, Аргентина, Япония, Франция, ЮАР,Италия и другие страны.

Часто задаваемые вопросы

1 квартал: Вы производитель или торговая компания??
А:Мы являемся производителем. Наша компания была основана в 1998, с почти 30-летним опытом работы в литейной промышленности, общая площадь 72 600 кв.м., с площадью заводского здания 51 000 кв.м..
2 квартал. Каковы ваши основные продукты?
А: В первую очередь мы ориентируемся на стальное литье, чугунное литье, механическая обработка готового изделия, и комплектующее сборочное производство.
Q3: Насколько точно можно производить литые детали??
А: У нас есть возможность производить литые детали с использованием различных процессов литья.. Производство строго соответствует ISO. 9001, ИСО 14001 и ИСО45001, ЭН15085, ИРИС.
Q4. Можете ли вы произвести по образцам?
Да, мы можем изготовить по вашим образцам или техническим чертежам. Мы можем построить для вас чертежи после того, как получим ваши образцы..
Q5: Как вы осуществляете контроль качества перед доставкой??
А: Проверка качества является очень важным фактором, гарантирующим качество стальных отливок.. Мы следуем 3 время проверки в течение всего производственного процесса. И мы предоставим отчет об испытаниях материала, отчет о размерных испытаниях, и отчет об испытаниях механических свойств нашим клиентам перед поставкой.

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