1. High corrosion kuj muaj corrosion cuam tshuam rau saum npoo ntawm kab noj hniav. Qhov kev xeb no ua rau cov hlau ntawm cov kab noj hniav saum npoo hlau mus erode thiab tev tawm, qhov chaw deteriorates, thiab qhov loj ntawm cov khoom yas deteriorates. Yog li ntawd, siv corrosion-resistant steel, chrome plating thiab nickel kho rau ntawm qhov chaw ntawm kab noj hniav.
2. Qhov gloss thiab qhov tseeb ntawm qhov chaw ntawm cov yas yas uas muaj kev puas tsuaj zoo yog ncaj qha ntsig txog kev puas tsuaj ntawm cov yas pwm kab noj hniav, tshwj xeeb tshaj yog thaum qee cov yas ntxiv iav fiber ntau, inorganic fillers thiab qee cov pigments, lawv ntxiv, lawv. Nrog cov yas yaj, nws ntws sai sai hauv qhov khiav thiab pwm kab noj hniav. Kev sib txhuam ntawm qhov chaw ntawm cov kab noj hniav yog qhov loj heev. Yog tias cov khoom tsis hnav-resistant, nws yuav hnav sai sai thiab ua rau qhov zoo ntawm cov khoom yas.
3. Zoo me me stability Thaum yas molding, qhov kub ntawm cov yas pwm kab noj hniav nce mus txog 300 degree C. Vim li no, nws yog qhov zoo tshaj plaws los xaiv cov cuab yeej steel (thermal kho steel) uas tsim nyog rov qab. Txwv tsis pub, nws yuav ua rau muaj kev hloov pauv hauv micro-structures ntawm cov khoom, ua rau muaj kev hloov pauv ntawm qhov loj ntawm cov pwm yas.
4. Feem ntau ntawm qhov yooj yim-rau-txhim pwm qhov chaw yog ua los ntawm cov ntaub ntawv hlau. Qee cov qauv tsim kuj nyuaj heev. Txhawm rau kom luv luv lub voj voog ntau lawm thiab txhim kho kev ua haujlwm zoo, cov khoom siv pwm yog ib qho yooj yim los ua cov duab thiab qhov tseeb uas yuav tsum tau ua los ntawm cov duab kos.
5. Cov khoom yas yas feem ntau yuav tsum muaj qhov zoo ntawm gloss thiab nto. Yog li ntawd, qhov roughness ntawm kab noj hniav nto yog me me heev. Nyob rau hauv txoj kev no, qhov chaw ntawm cov kab noj hniav yuav tsum tau ua tiav ntawm qhov chaw, xws li polishing thiab sib tsoo. Yog li ntawd, cov hlau xaiv yuav tsum tsis muaj ntxhib impurities thiab pores.
6. Yuav kom nce qhov tawv thiab abrasion tsis kam, kev kho cua sov feem ntau yog kev kho cua sov rau cov pwm yas, tab sis qhov kev kho no yuav tsum ua kom qhov loj me me. Yog li ntawd, pre-jitan steel uas muaj peev xwm txiav ua yog siv.
