Ol As Pasin Bilong Ol Kast Steel Komponen Long Rail Transit

Ol samting na ol samting bilong masin
Kain samting: Ol i save putim kabon ain (olsem ZG20-45#, ZG270-500) na 'low-alloy cast steel', we kabon i stap namel long 0.2%-0.45%, na ol samting olsem Cr, Ni, na Mo ol i ken putim long strongim na strongim.

Bikpela Strong na Bikpela Strong: Strong bilong 'tensile' inap long kamap 500-700 MPa, na strong bilong 'impact' inap long winim o wankain olsem 20 J/cm2, em i gutpela long karim bikpela hevi na taim bilong 'impact'.

Gutpela Isotropi: Insait straksa bilong ol 'cast steel' komponen i wankain moa long 'forged steel', wantaim liklik senis long tripela-mekenikel samting, na dispela i mekim em i gutpela long ol kompleks 'load-bearing straksa.

Ol pasin bilong wokim na proses
Inap long wokim ol kompleks straksa: Wok bilong kasting inap long wokim ol kompleks-seip komponen olsem ol 'rocker beam', 'side frame', 'coupler', na 'bogie frame', na dispela i daunim nid bilong weldim.

Komon Heat Tritmen: Normalizing + tempering o 'quenching' na tempering em ol i save yusim long stretim straksa, daunim hevi insait long bodi, na mekim gutpela wok.

Gutpela Kwaliti Kontrol: I nidim 'ultrasonic testing' (UT), 'magnetic particle inspection' (MT), na 'low-magnification/high-magnification metallographic inspection long lukim olsem i no gat ol hevi olsem 'porosity', 'shrinkage cavities', o ol 'cracks'.