I whakairihia ki runga 2018-12-22Ko te otinga maimoatanga Dacromet he wairewa wai whakamararatia he tawerewere konutea, he tawerewere konumohe, he waikawa chromic anhydrous, he ethylene glycol, he konutai waikura, me etahi atu, he wha ki te rima micrometer te diameter me te wha ki te rima micrometer te matotoru.I muri i te rukuhia, te rehu ranei o te taputapu mahi ki roto i te wai maimoatanga, ka piri te mata o te mea mahi ki te wai whakakikorua, ka whakamahana ki te 300 ° C i roto i te oumu whakamaroke ki te hanga i te hexavalent chromium i roto i te paparanga paninga Ko te mea pararopi. Pērā i te ethylene glycol ka whakahekehia ki te hanga i te wai-kore, te amorphous nCrO3 me te mCr2O3.I raro i tana mahi, ka hono tahi te pepa zinc me te pepa konumohe, a he maha nga paparanga kei runga i te mata o te taputapu mahi.Ko te paninga, me te waikawa chromic anhydrous i roto i te paninga Dacromet, ka oxidizes te mata o te mea mahi ki te whakarei ake i te adhesion o te paninga ki te mata o te mahi.
Ko te tikanga aukati waikura o te paninga Dacromet e kiia ana ko enei e whai ake nei:
1. Te whakamarumaru i te patunga tapu o te paura zinc;
2. Ka hangaia e te waikawa chromic he kiriata waikura matotoru i runga i te mata o te mea mahi e kore e ngawari te waikura i te wa e tukatuka ana;
3. Ko te paninga kei roto i nga tekau o nga paparanga o te zinc me nga pepa konumohe he mahi whakamarumaru, e whakanui ana i te taenga mai o te tangata pokanoa ki te mata o te taputapu mahi.
Te ara kua pahemo.Ka whakakikoruatia te hiko hiko ki te paparanga konutea ki te mata o te maitai.He ngawari te rere o naianei waikura i waenga i nga paparanga.Ina koa i roto i te taiao rehu tote, ka tino heke te naianei whakamarumaru kia ngawari ai te kai konutea.Ka puta te waikura ma i te timatanga o te tukatuka.He waikura whero ranei.Ko te maimoatanga Dacromet ko tetahi wahi o te pepa konutea kua hipokina ki te waikawa chromic, he ngawari te kawe, no reira he pai te aukati i te waikura.Ko nga pepa konutea e hipokina ana e nga paparanga ka whakakikoruatia hei whakangungu rakau, ka whakahaeretia te tere o te rerenga o te konutea ahakoa i roto i te whakamatautau rehu tote.I tua atu, i te mea ko te waikawa chromic waikawa i roto i te kiriata maroke Dacromet kaore he wai karaihe, he pai hoki tona parenga teitei o te pāmahana me te aukati i muri i te whakamahana.
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Wā tuku: Hānuere-13-2022