Iposwe kwi 2016-12-22Kuyaziwa ukuba i-Dacromet sisisombululo samanzi esichithwayo esiquka i-zinc flake, i-aluminium flake kunye ne-additives.Izinto zokusebenza emva kokudipha kunye nokutshiza, ukunyanga i-20min kwi-80 ℃ kwisithando sokufudumala kwangaphambili, i-30min kwi-300 ℃ kwiziko lokunyanga.Yenza i-chromium enehexavalent yayiyi-adipic yotywala kunye nokuncipha kwezinto eziphilayo kulwelo lwe-dacromet yokwambathisa ayinyibiliki emanzini.
Kufuneka kuqatshelwe ukuba ukuncitshiswa kwe-chromium enehexavalent ibe yi-chromium e-trivalent kunye ne-trivalent chromium oxidation kwi-chromium enehexavalent yinkqubo ebuyiselwa umva.Ke ngoko, kucwecwe lomsebenzi owenziwe nge-sintered, i-chromium ene-trivalent iya kuqhubeka ifakwa kwi-chromium enehexavalent, kwaye i-chromium enehexavalent yi-carcinogen, ngoko ke ukudibana kuya kuzisa ingozi empilweni.Ke ngoko, isisombululo se-chromium esine-coating yesiqhelo ayikhuphi zero ngokupheleleyo, okoko nje ubukho be-chromium enehexavalent, iya kuba nefuthe elithile kwindalo kunye nabantu, ke ngoko, ukuthandwa kwe-chrome yasimahla yeDacromet kuyafuneka.
Ngeenzame zesizwe zokhuseleko lokusingqongileyo ziyaqhubeka ukomelela, ngakumbi nangakumbi abavelisi bezixhobo zemoto bafuna iindawo ezigqunyiweyo ze-dacromet zasimahla.Kwaye kwaphuhliswa imigangatho yobugcisa yokugquma i-chrome yasimahla yedacromet.NjengeVolkswagen GMW3359, GM7111M njl.
I-Chrome yasimahla yeDacromet ijonge ikakhulu ezinye izinto endaweni ye-chromic acid passivation kunye nokudibanisa.I-Chrome yasimahla yokwaleka iDacromet ikakhulu isebenzisa isilicon ephilayo, isilicon ye-inorganic, i-molybdate, i-tungstate, iphosphate njenge-binder, ukusetyenziswa okufanayo kwe-scaly zinc / i-aluminium flake njengeyona nto iphambili yokuzalisa, kunye nothotho lwetywina emva konyango, ukufezekisa eyona nto ibalaseleyo. ukuxhathisa ukubola kunye ne-chromium equkethe i-Dacromet yokwaleka.
Itekhnoloji ye-Chrome yasimahla yeDacromet ayinayo inzuzo yetekhnoloji ye-chromium-dacromet kuphela, kodwa kwakhona ukusuka ekulungiseleleni ipeyinti, ukugquma, ifilimu, ukugquma ngokwayo kukhululekile ngokupheleleyo kwi-chromium enehexavalent, ingqiqo yokwenyani yokuzaliseka kohlaza olungenabungozi.Ngokombono wokusingqongileyo, kububanzi behlabathi be-chrome yasimahla yeDacromet endaweni ye-chrome dacromet ulwalathiso oluqhelekileyo aluyi kutshintsha, luya kuzisa umjikelo omtsha wecandelo letekhnoloji yokulwa nokubola kwenguquko yokusingqongileyo.
Ixesha lokuposa: Jan-13-2022