Kev kho deg tiav yog tsim txheej txheej txheej txheej txheej txheej txheej txheej ntawm cov khoom siv substrate, uas muaj cov khoom sib txawv, lub cev thiab tshuaj lom neeg nrog cov khoom siv substrate.Lub hom phiaj ntawm kev kho saum npoo yog ua kom tau raws li cov khoom siv tiv thaiv corrosion, hnav tsis kam, kho kom zoo nkauj lossis lwm yam kev ua haujlwm tshwj xeeb.
Raws li kev siv, cov txheej txheem kho saum npoo tuaj yeem muab faib ua pawg hauv qab no.
Electrochemical txoj kev
Txoj kev no yog siv cov tshuaj tiv thaiv electrode los tsim cov txheej txheem ntawm qhov chaw ua haujlwm.Cov txheej txheem tseem ceeb yog:
(A) Electroplating
Nyob rau hauv cov tshuaj electrolyte, lub workpiece yog lub cathode, uas muaj peev xwm tsim ib txheej zaj duab xis rau saum npoo nyob rau hauv qhov kev txiav txim ntawm sab nraud tam sim no, uas hu ua electroplating.
(B) Anodization
Nyob rau hauv cov tshuaj electrolyte, lub workpiece yog lub anode, uas muaj peev xwm tsim ib tug anodized txheej nyob rau hauv qhov kev txiav txim ntawm lwm yam tam sim no, uas hu ua anodizing, xws li txhuas alloy anodizing.
Cov hlau anodization tuaj yeem ua los ntawm kev siv tshuaj lom neeg lossis electrochemical.Cov txheej txheem tshuaj yog muab cov khoom ua haujlwm rau hauv cov kua dej anodized, nws yuav tsim cov yeeb yaj kiab anodized, xws li steel bluing kho.
Cov txheej txheem tshuaj
Txoj kev no yog siv tshuaj sib cuam tshuam yam tsis muaj tam sim no los tsim cov zaj duab xis txheej ntawm qhov chaw ua haujlwm.Cov txheej txheem tseem ceeb yog:
(A) chemical conversion film kho
Nyob rau hauv cov tshuaj electrolyte, lub workpiece nyob rau hauv qhov tsis muaj sab nraud tam sim no, los ntawm kev daws cov tshuaj lom neeg thiab cov workpiece kev sib cuam tshuam los tsim ib txheej ntawm nws cov txheej txheem nto, hu ua chemical conversion film kho.
Vim tias kev sib cuam tshuam ntawm cov tshuaj lom neeg ntawm kev daws thiab cov khoom ua haujlwm tsis muaj cov khoom siv sab nraud uas tuaj yeem tsim cov zaj duab xis txheej ntawm qhov chaw ua haujlwm, uas hu ua chemical conversion film.Xws li bluing, phosphating, passivating, chromium ntsev kho thiab lwm yam.
(B) Electroless plating
Hauv cov tshuaj electrolyte vim txo cov tshuaj lom neeg, qee cov khoom tso rau ntawm qhov chaw ua haujlwm los tsim cov txheej txheem txheej, uas hu ua electroless plating, xws li electroless nickel plating, electroless tooj liab plating.
Thermal processing method
Txoj kev no yog ua rau cov khoom melting los yog thermal diffusion nyob rau hauv lub kub kub tej yam kev mob los tsim txheej zaj duab xis nyob rau saum npoo ntawm workpiece.Cov txheej txheem tseem ceeb yog:
(A) Kub dip plating
Muab cov khoom siv hlau tso rau hauv cov hlau molten los tsim cov zaj duab xis txheej rau ntawm qhov chaw ua haujlwm, uas hu ua kub-dip plating, xws li kub-dip galvanizing, kub-dip galvanizing thiab lwm yam.
(B) Thermal txau
Cov txheej txheem ntawm atomizing thiab txau cov hlau molten mus rau saum npoo ntawm lub workpiece los ua ib txheej zaj duab xis yog hu ua thermal spraying, xws li thermal spraying ntawm zinc, thermal spraying ntawm txhuas thiab lwm yam.
(C) Kub stamping
Cov ntawv ci hlau rhuab, pressurized npog qhov chaw ntawm lub workpiece los tsim ib txheej txheej zaj duab xis, uas hu ua kub stamping, xws li kub ntawv ci thiab lwm yam.
(D) Kev kho cua sov
Ua haujlwm sib cuag nrog cov tshuaj thiab cia qee cov ntsiab lus rau hauv qhov chaw ua haujlwm hauv qhov kub thiab txias, uas hu ua kev kho cua sov, xws li nitriding, carburizing thiab lwm yam.
Lwm txoj kev
Feem ntau yog mechanical, tshuaj, electrochemical, lub cev txoj kev.Cov txheej txheem tseem ceeb yog:
(A) Painting txheej (B) Strike plating (C) laser nto tiav (D) Super-hard film technology (E) Electrophoresis thiab electrostatic txau
Post lub sij hawm: Jan-07-2021