Cov ntaub lim hlau txheej txheem yog cov khoom siv hlau zom ua rau cov hlau ntom kom nws tsis kam mus rau high-oxidation thiab cov hluav taws kub. Cov ntsia thawv tooj liab muaj cov tshuaj txhuam thiab corrosion corrosion hauv tag nrho cov kev txhim kho corrosive tsuas yog alkali thiab hydrofluoric acid. , yooj yim los ntxuav, zoo zoo nkauj thiab zoo yaj ywm thiab lwm yam zoo. Ceramics hais txog lub sij hawm siv rau hlau oxides, carbides, borides, tellurides, thiab nitrides. Nws muaj cov yeeb yam xws li high melting point, highness hardness, thiab ua tsis tau zoo. Tam sim no, oxides thiab carbides siv ntau zaus, thiab cov ntxhuav kuj yog siv me me xwb. Thiab telluride.
Tsim nyog siv txoj txujci uas siv tshuaj tua kab ua rau cov khoom siv hauv ib lub xuab zeb tuaj rau hauv ib lub hau uas muaj hlau khawb los tsim ib txheej txheej, piv txwv li, ib qho xuab zeb txheej txheem. Film thickness ntawm tsawg tshaj 0.4 hli yog feem ntau hu ua porcelain los yog enamel, thiab 0.4 hli los yog ntau tshaj yog feem ntau xa mus ua ib qho iav meem. Lub lauj kaub tais diav yog tsim rau kev siv hauv kub. Cov tshuaj txeem ntawm cov kab tsuag tuaj yeem tiv thaiv kom tsis muaj teeb meem ntawm cov hlau thiab cov hlau, ua cov khoom ua rau cov roj muaj corrosive, ua rau kom muaj qhov teeb meem ntawm qhov chaw kub, yuav hloov cov hlau tsawg-alloyed rau qhov tseem ceeb, thiab muaj peev xwm tiv thaiv kev quav . Lub yaig. Yog hais tias immersion plating siv, nws yuav tsum tau qhuav thiab ces ci rau hauv qhov cub kom tsim tau txheej txheej tiv thaiv zoo zoo.
Hlau tiv thaiv kev tawg tshuab muaj ntau yam kev paub thiab yog nplua nuj hauv cov ntsiab lus. Rau corrosion ntawm tooj liab screws, nws yog ib qhov tsim nyog yuav tau txais kev kho ntawm hom anti-corrosion ntsuas. Nws tsis tuaj yeem ua dav dav. Piv txwv, tus nqi ntawm kev tiv thaiv kev kub ntxhov deb tshaj tus nqi ntawm cov khoom yuav khoom, los yog nws yog qhov pheej yig hloov ncaj qha tshiab. Puas muaj kev xav tau tshwj xeeb? Copper screws uas tsis siv qhov zoo tshaj los tiv thaiv corrosion nyhuv tsis tau.