Adalemba pa 2018-11-12Kupaka kwa Dacromet, komwe kumadziwikanso kuti zokutira kwa zinc flake, kuli ndi mwayi woti zotsirizirazi sizingakwaniritsidwe poyerekeza ndi njira wamba zama electrogalvanized ndi otentha dip galvanizing.Kupaka kwa zinc flake kuli ndi zabwino izi:
#1.Kukana dzimbiri modabwitsa
Kutetezedwa kwa electrochemical kwa zinc, chitetezo cha zinc / aluminiyamu mapepala ndi mphamvu yodzikonzera yokha ya chromate imapangitsa kuti Dacromet ikhale yolimba kwambiri kuti iwonongeke pamene Dacromet imayesedwa muzitsulo zopanda mchere.Zimatenga pafupifupi maola 100 kuti zikhazikike ❖ kuyanika kwa 1um, yomwe ili yabwinoko ka 7-10 kuposa njira yopangira malata.Mayeso osalowerera ndale amchere amatha kukhala kwa maola opitilira 1000 (kuphimba ndi makulidwe a 8um kapena kupitilira apo), ndipo enanso apamwamba, izi sizingatheke ndi zigawo zamalata ndi zotentha za dip.
#2.Zabwino kwambiri kutentha kukana
Popeza Dakoro- TACHIMATA chromic asidi polima alibe madzi krustalo ndi malo osungunuka a aluminiyamu / zinki pepala ndi mkulu, ❖ kuyanika ali kwambiri kutentha dzimbiri kukana.Chophimba cha Dacromet chimakhala ndi kutentha kwa kutentha kwa 300 ° C. Ikhoza kugwiritsidwa ntchito mosalekeza kwa nthawi yaitali pa 250 ° C. Kukana kwake kwa dzimbiri kumakhala kosakhudzidwa, ndipo filimu yodutsa pamwamba pa electroplated zinc wosanjikiza imawonongedwa pozungulira. 70 ° C, ndipo kukana kwa dzimbiri ndikutsika kwambiri.
#3.Palibe brittleness wa hydrogen
Pa chithandizo chaumisiri cha Dacromet, palibe kutsuka kwa asidi, electrodeposition, electric de-oiling, etc., ndipo palibe electrochemical reaction ya hydrogen evolution chifukwa cha electro-galvanizing process, kotero kuti zinthuzo sizidzayambitsa hydrogen embrittlement.Choncho makamaka oyenera kugwira zotanuka mbali ndi mkulu-mphamvu workpieces.
#4.The goodrecoatability
Maonekedwe a zokutira Dacromet ndi siliva-imvi ndi kumamatira bwino ku gawo lapansi ndi zokutira zosiyanasiyana.Itha kugwiritsidwa ntchito ngati chosanjikiza chapamwamba kapena ngati choyambira cha zokutira zosiyanasiyana.Electrochemical reactions zimachitika pakati pa zitsulo chifukwa cha kusiyana komwe kungakhalepo.Pazigawo zokhala ndi malata, zigawo zonse zokhala ndi chitsulo komanso aluminiyamu zimagonjetsedwa ndi electrochemically ndipo zimachepetsa kukana kwa dzimbiri.Kwa Dacromet odana ndi dzimbiri wosanjikiza, popeza odana ndi dzimbiri zachokera chromic asidi passivation ndi ankalamulira nsembe chitetezo cha scaly zinki wosanjikiza, palibe dzimbiri electrochemical kwaiye, kotero kumwa Zn ndi ndi kuponderezedwa dzimbiri Al ndi kuponderezedwa.
#5.Wabwino permeability
Dacromet mankhwala amadzimadzi amatha kulowa mu mgwirizano wolimba wa workpiece kupanga zokutira zoteteza dzimbiri.Ngati njira ya electroplating ikugwiritsidwa ntchito, mkati mwa membala wa tubular sichimayikidwa chifukwa cha chitetezo.Komabe, chifukwa chithandizo cha Dacromet chimagwiritsidwa ntchito ndi zokutira ndipo chimakhala ndi mpweya wabwino, chimatha kugwiritsidwa ntchito kuti chiteteze dzimbiri mkati ndi kunja.
#6.Palibe kuipitsa
Pamene electroplating zinki, pali vuto la zimbudzi kumaliseche munali zinki, alkali, chromic acid, etc., amene adzachititsa kuipitsa lalikulu.Kutentha kwa zinc dip ndipamwamba kwambiri, ndipo mpweya wa zinc wotulutsidwa ndi HCL ndizovulaza thanzi la munthu.Kupanga kwa zinki komweko kumayenera kuchitidwa kutali ndi madera akumidzi ndi akumidzi.Njira ya Dacromet yapanga gawo latsopano lachitetezo cha chitsulo.Chifukwa chakuti chithandizo cha Dacromet ndi njira yotsekedwa, zinthu zomwe zimatenthedwa panthawi yophika zimakhala ndi madzi, zilibe zinthu zina zovulaza zomwe zimayendetsedwa, ndipo zilibe kuipitsa chilengedwe.
Kuti mudziwe zambiri za zokutira zinc flake, chonde tcherani khutu patsamba lathu: www.junhetec.com
Nthawi yotumiza: Jan-13-2022