O le vailaʻau vailaʻau o le scaffolding coupler e taua tele, o lea i le tele o tulaga, o le vailaʻau vailaʻau o le taliaina. O le tuufaatasiga o vailaau e fuafua ai foi le faatinoga o masini o lefa'apipi'i fa'alavama o faaletonu e tupu pe leai.
Mo se fa'ata'ita'iga, afai e itiiti ifo i le 0.03% le magnesium o totoe i fa'alava fa'alava efuefu, e tatau ona fa'amauina e a'afia e mafua mai i le fa'aletonu o le spheroidizing. Su'ega vaila'au eseese i le va o le ogaumu taimi, fa'ata'ita'iga taimi su'esu'e i'uga o su'ega e avea ma ogaumu, o le taunu'uga e fesuisuia'i fo'i ile metotia su'esu'e. Nonferrous uʻamea faʻapipiʻi faʻatasi ma faʻataʻitaʻiga faʻapitoa e manaʻomia o le maualuga o le uʻamea uʻamea uʻamea faʻalava, faʻapitoa uʻamea lafo ma le vevela maualuga o le vevela faʻatasi, e masani ona faʻaaogaina le vailaʻau faʻapipiʻi faʻapipiʻi e avea o se tasi o faʻauluuluga faʻafeiloaʻi le taliaina o tulaga faʻapitoa. Ina ia faʻamautinoa le lelei o le faʻapipiʻi faʻapipiʻi, e tatau foi ona i ai i le faʻagasologa o le gaosiga o siaki ma pulea le vailaʻau vailaʻau o le uʻamea.
Su'esu'ega vaila'au o fa'alava fa'alava faufale, e masani lava ona vaevaeina ile ogaumu fa'alava fa'alava su'esu'ega fa'amauina ma mae'a asiasiga oloa. O suʻesuʻega o le ogaumu e masani ona faʻaaogaina suʻesuʻega vevela, ultrasonic, spectrometry, kesi vave suʻesuʻega metotia ma meafaigaluega talafeagai, e mafai ona siaki vave le elemene autu i le tuʻuina atu o le vai uʻamea, faʻamalo elemene faʻataʻitaʻiga, elemene eleelea ma faʻamavae kesi i ni nai minute.
Mo se faʻataʻitaʻiga, o le metotia suʻesuʻega vevela, e mafai ona lala o le lafoina o le suʻesuʻega vevela o faʻataʻitaʻiga faʻaauau pea malulu curve, fuafuaina o le carbon i uʻamea lafo ma carbon e tutusa, anotusi silicon, le iloiloga o le aafiaga o inoculation ma spheroidized uʻamea vai; Faʻaaogaina o le X-ray fluorescence spectrometry, e mafai ona auʻiliʻili le vailaʻau o le faʻataʻitaʻiga, o le faagasologa atoa, mai le faʻataʻitaʻiga tuʻuina e lolomi ai iʻuga o le suʻesuʻega, na o ni nai minute; I le mita hydrogen, o le okesene ma le nitrogen determination mita, e mafai ona vave suʻesuʻeina le hydrogen, okesene, nitrogen ma isi kasa ua solo i totonu o le vai.
O metotia fa'atekonolosi fa'auma e aofia ai: auala fa'ameamea fa'ameamea, chromatography, decomposition method, volumetric method and gravimetric method, auala e mafai ai, power method, point method, colorimetric method, luminescent analysis, photometric method, spectrophotometry, spectrometry, mass spectrometry, chromatography, suʻesuʻega microprobe, suʻesuʻega faʻasalalau, suʻesuʻega vevela ma suʻesuʻega kesi, ma isi. Suʻesuʻega Microprobe ma suʻesuʻega o le X-ray e mafai ona iloa suiga faʻataʻitaʻiga i le fausaga ma le tuufaatasiga.
Taimi meli: Oke-11-2021