Tshaj tawm rau Xyoo 2018-10-29Nrog rau txoj kev loj hlob sai ntawm cov cuab yeej siv niaj hnub no, ntau thiab ntau cov khoom siv high-tech yog siv los tsim, tshwj xeeb tshaj yog nyob rau hauv kev lag luam.Kev siv thev naus laus zis tau coj ntau yam yooj yim rau peb lub neej, suav nrog Dacromet txheej.
Dacromet txheej, tseem hu ua zinc flake txheej, yog siv dav hauv ntau qhov kev lag luam.Ntawm lawv, kev sib xyaw ua ke ntawm Dacromet thev naus laus zis thiab txheej txheej zoo heev txhim kho kev tiv thaiv corrosion ntawm cov khoom.Yog li koj puas paub vim li cas nws tuaj yeem tiv thaiv cov khoom?
Dacromet txheej yog matt silver-grey thiab muaj cov flakes zoo heev ntawm zinc, txhuas thiab chromate.Tom qab lub workpiece tau degreased thiab tua blasted, lub txheej yog dip coated nrog Dacromet.Dacromet txheej yog ib hom dej-raws li ua kua, rau kev ua cov hlau qhov chaw tom qab dip txheej los yog tshuaj tsuag txhuam nyob rau hauv txheej kua, mus rau hauv curing furnace, los ntawm txog 300 ℃ ci zaj duab xis, tsim zinc, txhuas, chromium, inorganic txheej.
Thaum lub sij hawm kho, dej thiab cov organic (cellulose) cov khoom nyob rau hauv lub txheej yog volatilized thaum nyob rau hauv lub oxidization ntawm high-kawg chromium ntsev nyob rau hauv lub niam cawv ntawm dacromet, thiab cov chromium ntsev tebchaw ntawm Fe, Zn thiab Al yog tsim tom qab lub cov tshuaj tiv thaiv ntawm ib daim ntawv zinc thiab txhuas ntawv slurry nrog loj tsis zoo electrode peev xwm nrog hlau matrix.Vim tias cov txheej txheej membrane yog tsim tom qab cov tshuaj tiv thaiv ncaj qha nrog cov matrix, txheej txheej yog compact heev.Nyob rau hauv ib puag ncig corrosive, txheej txheej tsim ntau cov galvanic hlwb, uas yog, nws thawj zaug corrodes qhov tsis zoo Al thiab Zn ntsev kom txog thaum lawv tau noj ua ntej lawv. yuav corrode rau hauv matrix nws tus kheej.
Yog xav paub ntxiv txog dacromet, mus saib www.junhetec.com
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Post lub sij hawm: Jan-13-2022