无码三级国产三级在线电影,国产超碰人人做人人爽av大片 ,日本成熟老妇乱,日韩成人一区二区三区在线观看

Home > Product > Powder metallurgy brake pads >

Non-Dovetail Powder Metallurgy Brake Pads for 300-350 km/h and Above EMUs

  • Non-Dovetail Powder Metallurgy Brake Pads for 300-350 km/h and Above EMUs

Detailed Introduction

Non-Dovetail Powder Metallurgy Brake Pads for 300-350 km/h and Above EMUs

1.Product Description

Non-dovetail powder metallurgy(PM)brake pads are high-performance friction components designed for high-speed electric multiple units(EMUs)operating at 300-350 km/h and above.These brake pads feature a flat-back mounting design(non-dovetail)for improved structural stability and compatibility with modern knuckle-type brake calipers.

2.Key Features

?Powder Metallurgy Friction Material–Copper/iron-based matrix with high thermal stability(up to 750°C)

?Optimized for High-Speed Braking–Stable friction coefficient(μ=0.28–0.35)at extreme speeds

?Non-Dovetail Design–Eliminates stress concentrations,enhancing fatigue resistance

?Low Wear Rate–≤0.05 cm3/MJ(extends service life to 150,000–200,000 km)

?Integrated Wear Sensors–RFID or embedded indicators for real-time monitoring

3.Technical Specifications

Parameter Value Test Standard

Friction Coefficient(μ)0.28–0.35(stable at 550°C)UIC 541-5

Max Operating Temp 750°C(instant 900°C)EN 14535-2

Shear Strength≥40 MPa ISO 6312

Noise Level<75 dB at 300 km/h TSI 1302/2014

4.Material Composition

Base Matrix:Copper(60-70%)+Iron(15-20%)

Lubricants:Graphite(5-8%)+Molybdenum disulfide(MoS?,2-3%)

Reinforcements:Silicon carbide(SiC,3-5%)

Sintering Process:Hot-pressed at 850–950°C under 25–30 MPa

5.Applications

CR400"Fuxing"series(China)

Shinkansen E5/E6(Japan)

Other 300+km/h EMUs with knuckle-type calipers

6.Advantages Over Traditional Brake Pads

?30%better heat dissipation(reduced thermal cracking)

?15%longer lifespan compared to organic composite pads

?Simplified installation(bolt-on vs.dovetail machining)

7.Maintenance&Certification

Replacement Threshold:

Minimum thickness:5 mm(from initial 10 mm)

Crack limits:>2 mm depth or>15 mm length

Certifications:

CRCC(China)–Q/CR 546-2016

TSI(EU)–1302/2014

JIS(Japan)–E 4307

8.Special Variants

Low-Temperature Version(for–40°C environments,±5%μstability)

High-Humidity Optimized(coastal/rainy regions)

Compatible with ventilated forged steel discs(32–36 mm thickness).Performance data based on CRRC,Knorr-Bremse,and Hitachi Rail specifications.

For OEM/aftermarket inquiries,provide train model and brake system specifications for precise compatibility checks.

Contact Us
  • Tel: +86-0317-8196155
  • E-mail: 2461087283@qq.com
  • Add: Botou Industrial Zone, Hebei Province, China
Follow Us
66lu国产在线观看| 麻豆一精品传媒卡一卡二传媒短视频| 内射老阿姨1区2区3区4区| 欧洲女人性开放免费网站| 人妻巨大乳挤奶水hd免费看| 亚洲国产精品一区二区成人片不卡 | av人摸人人人澡人人超碰手机版| 三级特黄60分钟在线观看| 亚洲精品中文字幕无码蜜桃| 国产精品va在线观看无码不卡| 一区二区三区av高清免费波多| 国产成人高清亚洲一区| 亚洲人成77777在线播放网站| 人妻无码第一区二区三区 | 999久久免费精品国产| 日产日韩亚洲欧美综合下载| 四虎永久在线精品免费观看视频 | 一本一久本久a久久精品综合| 无码尹人久久相蕉无码| 无码大潮喷水在线观看| 人妻丰满熟妇av无码区app| 无码人妻一区二区三区麻豆| 国产成人亚洲综合网站小说 | 少妇爽滑高潮几次| 蜜桃精品成人影片| 老头把我添高潮了a片| 18禁床震无遮掩视频| 四虎国产精品成人| 人妻中文字幕乱人伦在线| 玩弄少妇的肉体k8经典| 亚洲愉拍自拍另类天堂| 欧洲美女黑人粗性暴交视频| 久久不见久久见免费视频7| 在线观看免费人成视频色| 天天躁日日躁狠狠躁欧美老妇| 最新色国产精品精品视频 | 国产欧美日韩精品a在线观看| 日韩av在线观看免费| 久久caoporn国产免费| 国产免费午夜福利在线播放11| 亚洲色精品vr一区二区三区|