The irregularities present in the track are the primary causes of vibration and these should be identified and the faults rectified to increase the safety of train travel. In this paper, a differential evolution technique based track measurement system is proposed to measure the health of the track. The abnormality of the track has been measured using micro electro mechanical system accelerometers which are mounted in the axle box. A new sensing method is used to estimate the exact location of the irregularity even when the signal is absent. Rail Track Measurement,Gap Measuring Device,Rail Measuring Device,Laser Measurement Device Shenyang Lubang Railway Maintenance Machinery Co.,Ltd. , https://www.srmfrailwayequip.com
High quality and Standard Twin Screw Extruder Screw Element
Specification:
Parallel twin screw diameter: Φ 18-Φ 177mm
Material:
1)W6Mo5Cr4V2
2)38CrMoAlA(JIS SACM645)
3)42CrMo(AIS14140)
4)S45C
Technics:
1)Heat treatment
2)Nitriding treatment
3)Vacuum quenching
Technical parameter:
D/d ratio: 1.55
Nitrided layer depth: >=0.4mm
Nitrided hardness: 900-1000HV
Warranty and service: 1 year
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September 25, 2022