Plating
Coating ukobvu ndiyo inonyanya kukosha vimbiso mamiriro ekudzivirira ngura. Kukura kwehukubvu hwekufukidzira, ndiko kuri nani kuramba kwecorrosion, izvo zvakaratidzwa neakawanda akakasira bvunzo uye mhino yekubuda bvunzo.
Sezvinoratidzwa pasi apa:
Kune mavara esimbi mahwendefa akavakirwa pa (aluminium) zinc plated plates, ukobvu hwekuputira hunonyanya kukanganisa notch corrosion performance yemavara esimbi mahwendefa. Iyo yakaonda iyo substrate, iyo yakawedzera zinc layer, uye zviri nani kuonda kwekudzivirira kweakachekwa. Parizvino inozivikanwa pasi rese kuti zinc ratio ≥ 100 inodzivirira inoshanda kubva kune notch corrosion yemavara akavharwa simbi mahwendefa.
Chitupa. Tichitora 0.5mm substrate semuenzaniso, zviri mukati me sikweya mita kune rimwe divi zvinofanirwa kusvika 50g.
Nzira yekusarudza rudzi rwekupfeka
Basa guru rekuputira rinoratidzwa mune zvose zvinoonekwa uye mabasa ekudzivirira. Iyo pigment yekuputira inogona kukamurwa kuita organic pigments uye inorganic pigments, ine mavara akajeka uye kupenya; Inorganic pigment anowanzo kuve akareruka, asi iwo makemikari zvimiro uye UV kuramba zviri nani kune organic pigments.
Matopcoats anonyanya kushandiswa emavara esimbi maplate anosanganisira polyester (PE), silicon modified polyester (SMP), high durability polyester (HDP), uye polyvinylidene fluoride (PVDF). Imwe neimwe topcoat inokodzera mamiriro akasiyana, uye isu tinokurudzira kushandisa HDP kana PVDF zvigadzirwa kana hupfumi hwabvumidza.
Pakusarudzwa kweprimer, epoxy resin inofanira kusarudzwa kana kunamatira uye kusagadzikana kwekuora kunosimbiswa; Kuti utarise zvakanyanya kuchinjika uye UV kuramba, sarudza polyurethane primer.
Nokuda kwechifukidzo chemashure, kana ruvara rwakaputirwa simbi ndiro rinoshandiswa sendiro imwe chete, sarudza chimiro chezvikamu zviviri, kureva, imwe mutsara wemashure ekutanga uye imwe mutsara wekupedzisira. Kana iyo ruvara yakavharwa simbi ndiro inoshandiswa seyakasanganiswa kana sandwich ndiro, jira re epoxy resin rinoiswa kumashure.
Mhedzisiro yekuputira ukobvu pahupenyu hwebasa
Iyo yemavara simbi yendiro yekuputira inogona kuita rimwe basa mukudzivirira ngura, uchishandisa iyo yekuvharira firimu kuparadzanisa kunze zvinoora zvinhu. Zvisinei, nekuda kwekuonekwa kwemicroscopic yefirimu yekuputira pachayo, kuchine pores, uye zvishoma zvemhute yemvura mumhepo icharamba ichipinda mumucheka, zvichikonzera kuputika kwekuputira uye zvichida kuita kuti firimu rekuputira ridonhe. Yesimbi ndiro, plating
Iyo layer (zinc plated kana aluminium zinc plated) ine simba guru pahupenyu hwesimbi ndiro.
Pahukobvu hwakafanana hwekuputira, iyo yechipiri coating yakaonda kupfuura yekutanga coating, ine zvirinani kudzivirira ngura uye hupenyu hwesevhisi hurefu. Kune ukobvu hwekuputira, zvichibva pane yakakodzera corrosion bvunzo mhedzisiro, isu tinokurudzira kuti iyo yekumberi yekupfeka ive 20 um kana kupfuura, sezvo akakwana firimu ukobvu hunogona kudzivirira ngura mukati menguva yechokwadi.
Dzivirira kuitika kwecorrosion (PVDF inoda kukora kwekukoira nekuda kwehupenyu hurefu hwehupenyu hunodiwa, kazhinji 25 μ M kana kupfuura).
Nguva yekutumira: Mar-31-2023