Tswj thiab lees txais Grey Spot Defects hauv Rail Welded Joints
Dab tsi yog qhov teeb meem ntawm grey welded pob qij txha?
Grey me ntsis yog grey los yog tsaus grey me ntsis los yog thaj ua rau thaj uas tshwm rau ntawm qhov chaw vuam tom qab flash welding. Lawv yog qhov tseem ceeb tsis muaj qhov chaw, oxide suav nrog, lossis cov qauv pearlite txawv txav. Cov teeb meem ntawm cov phiaj xwm no txo qis cov khoom siv dag zog thiab qaug zog lub neej ntawm kev sib koom tes.
Dab tsi yog qhov laj thawj tseem ceeb ntawm qhov tsis xws luag grey?
Qhov chaw welded qias neeg, xeb, lossis oxide nplai; tsis ruaj khov flash welding txheej txheem, tsis txaus siab npaum li cas, los yog tsawg upsetting siab; tsis txaus los yog tsis sib xws welding kub; Kev hloov pauv hauv cov khoom siv vuam tshuab, tsis ruaj khov tam sim no thiab voltage; Kev tshaj tawm tsis raug-weld kev kho cua sov, ua rau muaj qhov txawv txav ntawm microstructure.
Dab tsi yog qhov teeb meem ntawm grey me ntsis rau welded pob qij txha?
Grey me ntsis ua rau txo qis hauv kev sib koom ua ke lub zog, plasticity, thiab toughness; lawv yooj yim ua rau qaug zog tawg pib cov ntsiab lus, sai propagating nyob rau hauv lub tsheb ciav hlau loads thiab ua rau tam sim ntawd sib koom ua ke; lawv yog ib qho ntawm cov teeb meem txaus ntshai tshaj plaws hauv kev tsheb ciav hlau welded pob qij txha thiab yog ib yam khoom tseem ceeb uas yuav tsum tau tswj xyuas nruj.
Yuav kuaj xyuas qhov tsis xws luag grey li cas thiab ntsuas li cas?
Tag nrho-section ultrasonic kuaj yog siv rau kev kuaj pom, tsom rau kev tshuaj xyuas qhov chaw vuam thiab fusion kab cheeb tsam. Raws li cov qauv xws li TB/T 1632, cov hmoov tshauv qhov chaw tsis zoo tshaj qhov txwv, ntau dhau hauv cheeb tsam, lossis nyob rau hauv txoj haujlwm tseem ceeb (lub taub hau tsheb ciav hlau, tsheb ciav hlau hauv qab) yog txhua yam tsis tsim nyog thiab yuav tsum tau muab tshem tawm thiab rov ua dua -welded.
Yuav ua li cas txo thiab tshem tawm cov hmoov tshauv qhov tsis xws luag los ntawm kev txhim kho cov txheej txheem?
Ua tib zoo tshem tawm xeb thiab ntxuav lub ntsej muag kawg ua ntej vuam; optimize vuam tsis xws li flash welding, chim siab, thiab tuav tuav; xyuas kom ruaj khov vuam tshuab siab, tam sim no, thiab hloov chaw; siv cov cuab yeej siv vuam vuam siv los txo cov kev cuam tshuam ntawm phau ntawv; ntxiv dag zog tom qab-weld flaw detection thiab kho cua sov kom ua tiav tag nrho- txheej txheem tswj kom zoo.