Cov Nto Cov Teeb Meem Zoo Thiab Ua Rau Cov Ntawv Txias Rolled

Feem ntau defects ntawm daim hlau txias-kuav los tiag muaj xws li pitting tsis xws luag, central tho kab nrib pleb nyob rau hauv txias dov daim hlau, ntug tawg nyob rau hauv txias dov daim hlau, sawb zoo li warping, discontinuous point kab defects, dub (grey) kab (strip) defects, thiab lwm yam.
1. Pom qhov tsis xws luag. Cov pockmarks tus kheej tau faib tsis tu ncua, thaum qhov kev faib tawm tag nrho qhia tau hais tias ib pab pawg zoo li tus qauv. Cov pockmarks yog tsim los ntawm ntau lub qhov me me ntawm qib microscopic, thiab ntau qhov me me tuaj yeem pom hauv qhov pits. Cov impurity ntsiab nyob rau hauv concave ib feem yog ib txwm ua raws li cov muaj pes tsawg leeg ntawm crystallizer tiv thaiv slag, qhia tias cov inclusions mas yog los ntawm crystallizer tiv thaiv slag.
2. Qhov nruab nrab ntawm lub rooj tsavxwm txias yog tawg. Muaj ntau cov scaly fragments dai ntawm lub hauv paus tawg qhov chaw, thiab cov npoo ntawm cov nplais loj loj muaj ntau qhov me me. Cov pob txha tawg yog nkig. Cov khoom me me zoo ib yam nyob rau hauv muaj pes tsawg leeg rau pwm tiv thaiv slag, qhia tias cov inclusions mas yog los ntawm pwm tiv thaiv slag.
3 lub caij ntuj sov hardboard ntug tawg. Lub ntug tawg yog serrated, thiab lub tawg muaj ib tug loj tus naj npawb ntawm qhov ntau thiab tsawg. Tsis muaj qhov sib txawv ntawm qhov sib txawv ntawm cov khoom thiab cov matrix, thiab qee cov khoom tau muab faib rau hauv cov qauv linear sib npaug rau cov kev taw qhia tawg. Cov khoom no kuj tuaj ntawm crystallizer tiv thaiv slag.
4 strips ntawm upturned daim tawv nqaij. Muaj ib txheej nyias nyias ntawm kev sib cais los yog ib nrab sib cais ntawm cov sawb zoo li cov tawv nqaij curled thiab cov substrate nyob ze ntawm lub rooj tsavxwm. Lub subcutaneous cheeb tsam ntawm daim tawv nqaij curled muaj ib tug loj npaum li cas ntawm powdery tshuaj. Lub zog spectrum tsom xam qhia tau hais tias cov tshuaj no feem ntau yog los ntawm denatured crystallizer tiv thaiv slag.
5 tsis tu ncua linear defects. Yog hais tias lub thickness ntawm lub rooj tsavxwm yog thinner dua 1 hli, qhov kev tsis zoo no feem ntau tshwm sim. Linear defects feem ntau tshwm nyob rau hauv pawg, nrog residual silicate composite inclusions nyob rau hauv qab ntawm qhov tsis xws luag. Feem ntau cov inclusions enriched nyob rau hauv lub plhaub, subcutaneous thiab central qhov chaw ntawm CSP castings, maj mam tshwm sim raws li lub thickness txo thaum lub sij hawm kub dov.
6 dub (grey) kab (strip) defects. Lub macroscopic morphology tom qab ntxuav cov kua qaub muaj xws li strip-puab, elongated, blocky los yog multi-point duab, nrog tshwj xeeb contours.
vim
1) Qhov zoo ntawm lub tshuab dov yog qhov tsis zoo, feem ntau yog vim qhov tev ntawm oxide zaj duab xis, kev laus thiab roughness, tev, thiab adhesion ntawm cov khoom txawv teb chaws.
2) Tsis huv descaling feem ntau yog vim muaj tej yam xws li nozzle thaiv thiab tsis muaj nozzle siab.
3) Cov txheej txheem txheej txheem, tsis yog tus qauv tswj cov dej txias ntawm racks, thiab lwm yam.
4) Kev khawb ntawm cov menyuam conveyor ua ntej nruam nruam mus rau F7 feem ntau yog tshwm sim los ntawm lub cub tawg rau cov menyuam nodules, cov khoom txawv teb chaws adhesion, tuag rollers, thiab lwm yam.
Cov yam ntxwv saum toj no ua rau cov hlau oxide nplai raug nias rau hauv, ua rau muaj cov kab dub (grey) kab (daim strips) tsis xws luag ntawm lub phaj txias.