Zvishandiso zvedhaimani zvakagadzirwa nemagetsi zvine maitiro akawanda mukugadzirwa, chero maitiro asina kukwana, achaita kuti coating iwire pasi.
Mhedzisiro yekurapa kwe pre-plating
Maitiro ekurapa matrix yesimbi isati yapinda mutangi rekuisa mapurasitiki inonzi pre-plating treatment. Kurapa pre-plating kunosanganisira: kupukuta nemechanical, kubvisa mafuta, kukurwa kwevhu uye matanho ekuita kuti zvinhu zvishande. Chinangwa chekurapa pre-plating kubvisa burr, oil, oxide film, rust uye oxidation skin pamusoro pematrix, kuitira kuti matrix metal ibudise pachena kuti ikure simbi zvakanaka uye igadzire intermolecular binding force.
Kana mushonga wepre-plating usina kunaka, pamusoro pematrix pane firimu remafuta rakatetepa uye firimu reoxide, hunhu hwesimbi ye matrix simbi hahugone kuratidzwa zvizere, izvo zvinotadzisa kuumbwa kwesimbi yekuputira uye matrix simbi, iyo inongori mechanical inlay, simba rekusunga harina kunaka. Saka, kurapa kusina kunaka usati waputira ndiyo inonyanya kukonzera kudonha kwe coating.
Mhedzisiro ye plating
Fomura yemushonga wekuisa jira inokanganisa zvakananga mhando, kuomarara uye kuramba kupfeka kwesimbi inoisa jira. Nema parameter akasiyana ekuita, ukobvu, huwandu uye kushushikana kwekugadzirwa kwesimbi inoisa jira kunogonawo kudzorwa.
Pakugadzira maturusi ekugadzira madhaimani, vanhu vazhinji vanoshandisa nickel kana nickel-cobalt alloy. Pasina simba rezvinhu zvisina kuchena zve plating, zvinhu zvinokanganisa kudonha kwe coating ndeizvi:
(1) Simba rekumanikidzwa kwemukati Kumanikidzwa kwemukati kwejira rinogadzirwa panguva yekuiswa kwema electrode, uye zvinowedzerwa muwave yakanyungudutswa uye zvigadzirwa zvavo zvekuora uye hydroxide zvinowedzera kushushikana kwemukati.
Kumanikidzwa kwakanyanya kunogona kukonzera mabhuru, kutsemuka uye kudonha kwejira panguva yekuchengetwa nekushandiswa.
Pakuputira nickel kana nickel-cobalt alloy, kushushikana kwemukati kwakasiyana zvikuru, kana chloride yakawanda, kushushikana kwemukati kunowedzera. Pamunyu mukuru we nickel sulfate coating solution, kushushikana kwemukati kwe watt coating solution kushoma pane kwemamwe ma coatings solution. Nekuwedzera organic luminent kana stress removing agent, macro internal stress ye coating inogona kuderedzwa zvakanyanya uye microscopic internal stress inogona kuwedzerwa.
(2) Mhedzisiro yekushanduka kwehydrogen mune chero mhinduro yeplating, zvisinei nekuti PH ingave yakawanda sei, pane huwandu hwakati hwehydrogen ions nekuda kwekupatsanurwa kwemamorekuru emvura. Nokudaro, mumamiriro ezvinhu akakodzera, pasinei nekuputirwa mu electrolyte ine acidic, neutral, kana alkaline, kazhinji pane hydrogen precipitation mu cathode pamwe chete nekuputirwa kwesimbi. Mushure mekunge hydrogen ions yaderera pa cathode, chikamu chehydrogen chinobuda, uye chikamu chinopinda mu matrix metal uye coating mumamiriro eatomu hydrogen. Inokanganisa lattice, zvichikonzera kushushikana kukuru kwemukati, uye inoitawo kuti coating ishanduke zvakanyanya.
Mhedzisiro yemaitiro ekuisa plating
Kana kuumbwa kwe electroplating solution pamwe chete nezvimwe zvinokonzeresa maitiro ekugadzirisa process zvikasabviswa, kukundikana kwemagetsi mu electroplating process ndicho chikonzero chikuru chekurasikirwa ne coating. Maitiro ekugadzira electroplating e electroplating madhiraivha e electroplating akasiyana zvikuru nemamwe marudzi e electroplating. Maitiro e electroplating e electroplating madhiraivha e electroplating anosanganisira empty plating (base), jecha coating uye thickening process. Mukuita kwega kwega, pane mukana wekuti matrix ibve mu plating solution, kureva kuti, magetsi akadzimwa kwenguva refu kana pfupi. Saka, kushandiswa kwe process ine musoro, process kunogonawo kuderedza kubuda kwe coating shedding phenomenon.
Nyaya yacho yakadhindwazve kubva "China Superhard Materials Network"
Nguva yekutumira: Kurume-14-2025
