Nhanganyaya: Maitiro ekugadzira azvigadzirwa zvepurasitikiKunyanya kusanganisira nzira ina mbiri dzinokosha: kuumbwa kuumba, kurapwa kwemukati, kudhinda, uye musangano. Kurapwa kwepasi chinhu chakakosha chikamu chakakosha. Kuti uvandudze simba rekubatanidza rekuvhara uye kupa tsamba yakanaka yekuita kuti plating, iyo pre-yekurapa kwekutakura inokoshesa.
Kureurura kwezvigadzirwa zvepurasitiki
Kunyanya inosanganisira kuunganidza kurapwa uye kupedza kurapwa. Kazhinji, mapurasitiki ane mwero wakakura wekristunity, chifananidzo chidiki kana kuti hapana polarity, uye yakaderera simba, iyo ichakanganisa kuderedza kwekucheka. Sezvo mapurasitiki asiri iye asiri-maitiro ekufambisa, haigone kuve yakanangana zvakananga pamusoro wepurasitiki pamusoro penzvimbo iyo general electroplating yakatarwa. Naizvozvo, kusati kwatanga kurapwa, kunakirwa kunofanirwa kuitwa kuti uvandudze kusanganisa simba rekubatanidza uye kupa pasi rekuita pasi rine simba rekubatanidza kusimba.
Kukundikana kwekubatanidza
Kufungidzira kunosanganisira degreacast yepurasitiki pamusoro, kureva kuchenesa mafuta uye kusunungura mumiririri pamusoro, uye uchishandisa iyo yepurasitiki, kuitira kuti uvandudze kuderedza kwekucheka.
1, gadziriro
Gadziriro yezvigadzirwa zvepurasitiki. Zvakafanana nekushambidzika kwezvigadzirwa zvesimbi, degreage of epurasitiki zvigadzirwa zvinogona kuitwa nekuchenesa ne organic sol soles kana degreale nea alkaline mhinduro dzemvura ine surfers. Degreacing ine organic sol solike yakakodzera yekuchenesa parafin, beesax, mafuta uye mamwe organic tsvina kubva papurasitiki. Iyo organic solvent inoshandiswa haifanire kunge ichinyungudika, kuzvimba kana kupwanya mapurasitiki, uye ine nzvimbo yakaderera yekubika, isiriyo, isina-chepfu uye isina-inopisa. Alkaline yemvura mhinduro yakakodzera kune degreasing alkali-inodzivirira mapurasitiki. Mhinduro yacho ine caustic soda, alkaline munyu uye akasiyana shuwa. Iyo inonyanya kushandiswa surfayt
2, kuvhenekerwa
Active iyi ndeyekuvandudza nzvimbo yemapurasitiki emapurasitiki, ndiko kuti, kuburitsa mamwe mapoka epurasitiki pamusoro kana kudzikisa kuti kuunganidzira kunogona kunyatsoita uye kuyamwisa pamusoro pepasi pepamusoro. Kune nzira dzakawanda dzekutarisa masimba kurapwa, senge makemikari oxidation, murazvo oxidation, solvent vaping etching uye corona discharge oxidation. Iyo inonyanya kushandiswa yakashandiswa nemakemikari crystal kurapwa, izvo zvinowanzoita chromic acid kurapwa kwemvura, uye maPotassium Dichromate ,, 87.5% yakadzika sulfutic acid (anopfuura 96%).
Zvimwe zvigadzirwa zvepurasitiki, zvakadai se polystyrene uye isa purasitiki, zvinogona kuvezwa zvakananga pasina emakemikari oxidation kurapwa. Kuti uwane yakakwirira-mhando yekubatanidza, yemakemikari oxidation kurapwa kunoshandiswawo. Semuenzaniso, mushure mekunge degreeasing, Abs mapurasitiki anogona kuiswa pamwe nedhiza rechromic acid kurwisa mvura. Yayo yakajairika kurapwa formula ndeye 420g / l chromic acid uye 200ml / l sulfutic acid (chaiyo gravity 1.83). Maitiro ekurapa ekurapa ari 65 × 70 ℃ / 5min10min, kushambidza mvura, uye kuoma. Iko mukana wekutora ne chromic acid kurapa kwemvura ndeyekuti kunyangwe akaomarara sei chimiro chechigadzirwa chepurasitiki ndechekuti, inogona kubatwa zvakaringana. Iko kukanganisa ndiko kuti kuvhiya kune ngozi uye kune matambudziko ekusvibisa.
Kufungisisa kwekubatanidza coating
Chinangwa chekunyepedzera kwekubatanidza coating ndeyekuvandudza kuunganidzwa kwekuvhara kune iyo epurasitiki nzvimbo uye kuumba iyo inosimbisa yesimbi yepasi pane epurasitiki. Maitiro ekunyepedzera anonyanya kusanganisira: Mechanical roughening, makemikari gadziriro, sensitization kurapwa, kurapwa kwebasa, kuderedza kurapwa nemakemikari. Zvinhu zvitatu zvekutanga ndezvekuvandudza kuderedza kwekucheka, uye zvinhu zvina zvekupedzisira ndezvekuumba maitiro ekuita simbi yepasi.
1, manhamba ekugadzirisa uye makemikari ekugadzirisa
Mechancal Kurovera uye Chemical Kurapa ndeyekuita iyo Plastic Purasus Rougher neicho mechancal Nzira uye Nzira dzeMakemikari zvichinyatsoenderana neyekuwisira pasi pakati pekuvhara uye substrate. Izvo zvinowanzoda kuti simba rekusungwa rinogona kuwanikwa nekurova kwemakanika zvinongova gumi muzana yeiyo yemakemikari ekugadzirisa.
2, makemikari gadziriro
Nzira yekusarudzika yekunyepedzera kwepurasitiki yekubatanidza yakaenzana neiyo nzira yekusarudzika yekunyepedzera yekuvhara.
3, sensitization
Sensitization ndeyekubvumirana zvimwe zvinhu zviri nyore oxdized zvinhu, senge tin dichloride, titanium trichloride, etc., pamusoro peplastics ine imwe adsorption kugona. Aya anonyadzisa oxdied zvinhu zvinhu zviri nyore panguva yekubvumidzwa kurapwa, uye activator inoderedzwa kusvika kune crystaltic crystal nucti uye inoramba iri pamusoro pechigadzirwa. Basa rekunzwa riratidziro yekuisa hwaro hweiyo inotevera makemikari plating yesimbi layer.
4, activation
Activation ndeyekubata iyo sensitizised pamusoro nerubatsiro rwemhinduro yezvechirume inoshandira simbi componeunds. Kukosha kwayo ndekwekunyudza chigadzirwa adsorbled neyekudzora mumiriri mumugodhi wemukati une oiri anokosha nesimbi, kuti scident, uye simbi yakakosha inoiswa pane pamusoro pechigadzirwa muchimiro checolidal maseru, icho chine basa rakasimba repalari. Kana nzvimbo iyi yakanyudzwa mumakemikari yekuisa makemikari, izvi zvidimbu zvinova nzvimbo dzevatariri, dzinozunza huwandu hwekugadzirisa kwemakemikari.
5, kuderedza kurapwa
Pamberi pemakemikari plating plating, zvigadzirwa zvakaitwa uye zvakashambidzwa nemvura yakachena zvinonyudzwa mune imwe pfungwa yekudzora mumiririri yekudzora mukudzora uye kubvisa iyo isina kusarudzika activator. Izvi zvinonzi kuderedza kurapwa. Kana makemikari emhangura, formaldehyde mhinduro inoshandiswa kurapwa, uye kana makemikari nickel yakaiswa, sodium hypophosphite mhinduro inoshandiswa kurapwa kwekudzikisa.
6, makemikari plating
Chinangwa chemakemikari chiri kuumba iyo inodzidzisa simbi yemidhodhi pamusoro pezvigadzirwa zvepurasitiki kuti ugadzire mamiriro eElectroplating zvigadzirwa zvesimbi. Naizvozvo, makemikari plating idanho rinokosha mumapurasitiki elele elelelele.
Kutumira Nguva: Jun-13-2024