Me me steel yeeb nkab tsis xws luag yog raws li hauv qab no

Scarring

Ib qho ntawm cov hlau nto tsis xws luag, kev ua haujlwm ntawm cov khoom nto caws pliav zoo li ntawv ci.Feem ntau muaj tus nplaig, thaiv lossis scaly thiab tsis sib xws.Scarring qhov ntau thiab tsawg, ntxoov ntxoo xws li hauv qab no feem ntau suav nrog.Rolling caws pliav uas ua rau caws pliav yog hu ua dov, qhov chaw faib khoom, cov duab thiab qhov loj me zoo ib yam, muaj ntau yam tsis xws luag hauv daim tawv nqaij oxide hauv qab.General metallurgical khoom nto tsis pub caws pliav.

Dawb chaw

Nyob rau hauv cov kua qaub leaching ntawm transverse specimens pom dawb dots ntawm txawv qhov ntau thiab tsawg ntawm sab hauv tsis xws luag.Dawb irregular zoo, du thiab me ntsis tsa, feem ntau nyob rau hauv nruab nrab ib feem ntawm ib tug loj loj thiab siab alloy cov ntsiab lus dov thiab forgings.Yog vim li cas yog tias cov tshuaj muaj pes tsawg leeg ntawm cov dawb tsis sib luag thiab sib sau ua ke ntawm qee cov ntsiab lus alloying.Nws tsis yooj yim rau corrosion vim qhov tsis xws luag hauv cov kua qaub leaching tshwm li cov pob dawb ntawm cov qauv.Txoj hauv kev tau txais kev pom zoo los tiv thaiv leukoplakia refining, argon nplawm rau cov khoom xyaw sib npaug, siv ingot casting tshuab lossis tswj tus nqi cua txias los tiv thaiv kev ntsuas dej.

Yeeb nkab lamination

Kev sib cais ntawm cov koom haum loj tam sim no nyob rau hauv cov hlau substrate, yog ib qho kev tsis xws luag hauv cov khoom siv yas yas.Kev sib cais ntawm qhov sib npaug mus rau qhov ua tiav, qhov ntev thiab ntu ntu ntu tau pom muaj qhov tawg ntev, muaj qhov me me ntawm cov hlau tsis sib xyaw hauv cov kab nrib pleb thiab kev sib cais, rhuav tshem kev ncaj ncees ntawm cov hlau substrate.Stratification yog vim shrinkage, tawg, npuas yas ua tsis xws luag los ntawm kev ncua, elongated, thiab ua tsis tiav weld tsim.

Cov plaub hau tawg

Ib qho ntawm cov hlau nto tsis xws luag, kev ua haujlwm ntawm cov khoom nto plaub kab.luv dua li cov kab nrib pleb raws li cov kev taw qhia dov dispersed los yog hauv pawg.Hairline yog cov khoom feem ntau tso cai rau qhov tsis xws luag, tab sis nws qhov tob yuav tsum ua raws li cov qauv tsim nyog.

Banded kev taw qhia

Ib qho tsis zoo nyob rau hauv cov hlau, kub dov qis carbon steel hauv microstructure, yog teem nyob rau hauv parallel raws li dov kev taw qhia, ib txheej txheej ntawm ferrite thiab pearlite nplej nplej zoo li sawb.Qhov no yog vim tshwm sim nyob rau hauv cov hlau thaum lub sij hawm txias tom qab kub dov nyob rau hauv lub ferrite los ntawm qhov tseem ceeb thiab cov non-metallic inclusions dendritic segregation strip txuas ntxiv los ntawm kev tsim, uas ua rau tsim cov ferrite strips, strips ntawm ferrite theem transformation ntawm pearlite, ob theem rau hauv txheej txheej.Yog li qhov muaj cov qauv ntawm cov qauv tsis sib xws ntawm cov hlau thiab qhov cuam tshuam ntawm cov hlau, tsim anisotropy, qis ductility ntawm cov hlau, thiab txo cov toughness, uas ua rau undesirable txias dabtsi yog khoov, stamping seem nqi, yooj yim deformation thaum lub sij hawm lub sij hawm. Thaum tshav kub kub kev kho mob ntawm steel tsis zoo txim.

Deg tsis xws luag

Nyob rau hauv steel thiab non-ferrous alloy khoom nto thiab cuam tshuam qhov zoo ntawm cov khoom ntawm ntau yam flaws nyob rau hauv dav dav.Muaj ntau hom defects, feem ntau nyob rau hauv lub morphology ntawm qhov tsis xws luag rau lub npe, thiab ib co ntawm nws ua rau lub npe.Cov txheej txheem ntau lawm feem ntau los tsim cov khoom lag luam tsis zoo ntog rau hauv ob pawg.Ib qho yog cov hlau tsis zoo, xws li kev sib cais, caws pliav, tawg, tawg, kab plaub hau, npuas, thiab lwm yam. Feem ntau ntawm cov kev tsis zoo no yog tshwm sim los ntawm qhov tsis zoo ntawm cov ingot.Lwm qhov tsis zoo yog kev ua haujlwm tsis zoo, suav nrog folding, pob ntseg, pitting, convex hull, khawb, dents, nias rau hauv oxide nplai, burrs, thiab lwm yam., cov kev tsis zoo no yog tsim los ntawm cov txheej txheem yas ntxiv.

Burr

Ib qho ntawm cov hlau tsis xws luag, manifested raws li kev txiav txias, kub pom steel xaus los yog nplaim taws txiav burr, thaum extruded yeeb nkab welds muaj ntau tshaj hlau.Cov khoom txias txias nyob ntawm qhov tuab ntawm qhov kawg burr qhov sib txawv ntawm cov hniav.Cov khoom siv dav dav kom tso cai rau qee qhov kev tsis sib haum xeeb tshwm sim;Tab sis sab hauv thiab sab nraud burr yeeb nkab yuav tsum tau muab pov tseg.