Tam sim no, kev faib tawm ntawm ntau yam txhuas daim hlau siv hauv kev lag luam tau nthuav dav, thiab kev tsim cov txheej txheem ntawm txhuas phaj tau piav qhia. Niaj hnub no peb tsuas yog ua kom paub qhov zoo ntawm qhov yuav tsum tau ua ntawm cov ntshiab txhuas daim hlau kom koj tuaj yeem paub txog kev tsim cov txheej txheem ntawm txhuas phaj.
Lub ntsiab lus tseem ceeb tshaj plaws yog qhov saum npoo ntawm lub rooj tsav xwm Circuit Court yuav tsum huv si thiab tsis muaj kab nrib pleb lossis lwm yam oxides raug tso cai.
Ob: Indentations, khawb los yog dov tsis xws luag raug tso cai vim cov txheej txheem tsis zoo ntawm cov phaj saum npoo, tab sis lawv qhov tob tob tsis tuaj yeem tshaj qhov tso cai tsis zoo ntawm daim ntawv. Tshaj qhov nyiaj them rov qab yuav tshwm sim.
Peb: Cov txheej txheem ntawm cov phaj txhuas tso cai rau cov txheej txheem thiab cov npuas hauv cov txheej txheem kom poob ib nrab.
Plaub: Tsuas yog muaj qhov tsis xws luag hauv qhov tuab, cov ntawv hlau feem ntau tuaj yeem kho.
Tsib: Qee qhov kev xav tau tshwj xeeb yog tsim los ntawm cov neeg muag khoom thiab cov neeg muag khoom lawv tus kheej, thiab tom qab ntawd hloov cov txheej txheem tsim khoom.
Aluminium phaj saum npoo zoo yuav tsum yog cov cim tseem ceeb los xyuas kom meej cov tsos thiab kev ua tau zoo ntawm txhuas daim hlau. Cov hauv qab no yog qee yam ntawm txhuas phaj saum npoo zoo yuav tsum tau:
Surface smoothness: Qhov saum npoo ntawm txhuas phaj yuav tsum tiaj tus thiab du, tsis muaj qhov tsis xws luag xws li nthwv dej, tsis sib xws, thiab wrinkles. Nto flatness tsis tsuas yog cuam tshuam rau cov tsos ntawm aluminium phaj, tab sis kuj ncaj qha cuam tshuam rau nws cov kev ua tau zoo.
Kev huv ntawm qhov chaw: Qhov saum npoo ntawm txhuas phaj yuav tsum tsis muaj roj, plua plav, impurities thiab lwm yam kuab paug. Qhov chaw huv si pab tswj cov xim qub thiab ci ntsa iab ntawm txhuas phaj, thaum tseem tiv thaiv cov kab mob los ntawm kev ua kom xeb thiab kev puas tsuaj rau cov phaj txhuas.
Surface xim uniformity: Cov xim saum npoo ntawm txhuas phaj yuav tsum tsis sib xws yam tsis muaj xim txawv txawv. Xim uniformity tsis tsuas yog cuam tshuam rau lub ntsej muag ntawm txhuas phaj, tab sis kuj ua kom ntseeg tau tias aluminium phaj nthuav tawm qhov pom kev zoo ib yam nyob rau hauv cov teeb sib txawv thiab cov ces kaum.
Nto khawb thiab puas: yuav tsum tsis muaj qhov pom tseeb khawb, indentations, pob thiab lwm yam kev puas tsuaj rau saum npoo ntawm txhuas phaj. Cov kev puas tsuaj no tsis tsuas yog cuam tshuam rau lub ntsej muag ntawm aluminium phaj, tab sis kuj tseem tuaj yeem txo nws cov khoom siv dag zog thiab kev tiv thaiv corrosion.
