1. Kev npaj khoom siv
Thawj kauj ruam hauv kev tsim cov ntsia hlau yog kev npaj cov khoom siv. Hauv kev xaiv cov khoom siv raw, peb yuav tsum xaiv cov hlau zoo uas muaj hlau nplua nuj thiab muaj kev ntxhib los mos. Tsis tas li ntawd, hauv xov ntau lawm, peb tuaj yeem xaiv cov duab sib txawv ntawm cov ntaub ntawv steel hlau raws li kev xav tau, kom cov ntsia hlau sib txawv. Qee qhov muaj kev txaus siab toughness thiab siab zog.
2. Xov xov ua haujlwm
Xov yog ib feem tseem ceeb ntawm cov ntsia hlau, thiab cov xov ua tiav yog qhov tseem ceeb tshaj plaws rau kev ua cov ntsia hlau zoo. Xov xov ntau lawm yuav ua tau ob txoj kev, txias taub hau los yog kub taub hau. Qhov zoo ntawm lub taub hau txias yog tus nqi qis thiab du nto; thaum qhov zoo ntawm kub taub hau yog siab ntau lawm efficiency thiab ntau zoo nyob rau hauv kev tswj ntawm xov roughness. Yog li ntawd, lub taub hau txias tuaj yeem siv los ua txoj hauv kev tseem ceeb rau qhov ntiav qhov xov ntau lawm, thiab cov txheej txheem kub kub tuaj yeem siv rau qhov tob tob.
3. Kev kho hardness thiab lub zog
Nyob rau hauv tus txheej txheem ntawm kev ua screws, peb kuj yuav tsum tau kho lub hardness thiab lub zog ntawm cov hlau hlau cov ntaub ntawv. Kev kho hardness feem ntau heats cov hlau thiab txias nws sai sai hauv cov roj da dej kom nws ncav cuag tus nqi hardness ntau dua; thaum lub zog kho yuav tsum tau cov hlau yuav tsum tau rhuab mus rau ib tug tshwj xeeb kub thiab khaws cia rau ib lub sij hawm ntawm lub sij hawm kom cia nws cov nplej kom refine thiab re-crystallize.
4. Xov nto kho
Screw nto kho yog ib feem tseem ceeb ntawm cov ntsia hlau tsim. Cov ntsia hlau kho saum npoo yog smoother thiab tuaj yeem tiv thaiv oxidation, corrosion thiab hnav. Feem ntau siv txoj kev kho deg muaj xws li galvanizing, tshuaj tsuag pleev xim, electrophoresis, thiab lwm yam. Ntawm lawv, galvanizing yog feem ntau siv txoj hauv kev kho cov ntsia hlau, vim tias nws tuaj yeem tsim txheej zinc ntawm qhov chaw kom tsis txhob oxidation thaum lub sij hawm maj mam oxidation txheej txheem, yog li ua kom cov ntsia hlau ntev dua Qhov saum npoo huv si.
