1. Yuav ua li cas yog txoj kev rau vuam rails?
Flash taub qab vuam: Siv nyob rau hauv factories rau siab -lub zog, zoo ib yam - zoo pob qij txha.
Thermite vuam: Haum rau ntawm - kho qhov xwm txheej ceev tab sis muaj zog qis dua.
Gas siab vuam: Txuas cov ntsia hlau nyob rau hauv qhov kub thiab txias, zoo tagnrho rau CWR lem.
Ncej - vuam,tsis yog -kev kuaj kev puas tsuajthiabkev ntxhov siabyuav tsum tau.
2. Lub hom phiaj ntawm txoj kev tsheb ciav hlau yog dab tsi?
Nyob rau hauv ib txwm lem, rail pob qij txha haum thermal expansion thiab contraction tab sis nce lub log -rail cuam tshuam thiab suab nrov. Niaj hnub railways feem ntau sivCWR cov ntaub ntawv, qhov twg welding minimizes pob qij txha rau smoother ua hauj lwm.
3. Cov ntaub ntawv dab tsi yog siv rau cov ntsia hlau?
Cov ntaub ntawv uas muaj xws li:
ua 71mn(Suav tus qauv): Siab - carbon steel nrog zoo heev hnav tsis kam.
U75V(siab-lub zog steel): Siv hnyav- tsheb ciav hlau.
Hlau alloy: Txhim kho nrog Cr, Ni, thiab lwm yam, kom txhim kho kev qaug zog.
4. Yuav ua li cas thermal expansion/contraction tswj nyob rau hauv rails?
CWR taug qab tswj kev nthuav dav / kev cog lus los ntawmkev ntxhov siab- ntsuas kub dawbthiabkho kev ntxhov siab. Nyob rau hauv huab cua huab cua, cov pob qij txha txuas ntxiv lossis hloov kho kev ntxhov siab ib ntus yog qhov tsim nyog.
5. Rail corrugation yog dab tsi? Nws tiv thaiv li cas?
Corrugation hais txog yoj-zoo li hnav qauv tshwm sim los ntawm lub log-rail resonance. Kev tiv thaiv muaj xws li:
Optimizing log tread tsim.
Kev sib tsoo tsis tu ncua.
Siv high- cov ntaub ntawv hardness rail.