Kev kho cua sov yog txheej txheem kev kho cua sov uas cov khoom ua haujlwm tau muab tso rau hauv qhov nruab nrab tshwj xeeb rau cua sov thiab txuag hluav taws xob, kom cov atoms nquag hauv nruab nrab nkag mus rau hauv txheej txheej ntawm lub workpiece, yog li hloov cov tshuaj muaj pes tsawg leeg thiab cov qauv ntawm cov khoom siv hluav taws xob. nto txheej ntawm lub workpiece, thiab ces hloov nws cov kev ua tau zoo. Kev kho cua sov kuj tseem yog ib txoj hauv kev kom tau txais qhov toughness ntawm qhov chaw, tawv thiab hauv ob sab phlu. Piv nrog rau saum npoo quenching, tshuaj kho cua sov tsis tsuas yog hloov cov qauv ntawm cov hlau, tab sis kuj hloov nws cov tshuaj muaj pes tsawg leeg. Raws li cov khoom sib txawv infiltrated, tshuaj kho cua sov tuaj yeem muab faib ua carburizing, nitriding, multi-infiltration, infiltration ntawm lwm cov ntsiab lus, thiab lwm yam. Cov txheej txheem kev kho cua sov tshuaj muaj peb txheej txheem: decomposition, absorption, thiab diffusion.

Feem ntau siv tshuaj kho cua sov:

Carburizing, nitriding (feem ntau hu ua nitriding), carbonitriding (feem ntau hu ua cyanidation thiab mos nitriding), thiab lwm yam. Sulfurizing, boronizing, aluminizing, vanadizing, chromizing, thiab lwm yam.

Txheej ib los yog ntau dua hlau coatings rau saum npoo ntawm cov khoom siv hauv paus tuaj yeem txhim kho nws cov hnav tsis kam, corrosion kuj thiab kub tsis kam, lossis tau txais lwm yam khoom tshwj xeeb. Muaj electroplating, tshuaj plating, composite plating, infiltration plating, kub dip plating, nqus evaporation, tshuaj tsuag plating, ion plating, sputtering thiab lwm txoj kev.

Hlau Carbide Txheej - Vapor Deposition

Vapor deposition technology yog hais txog ib yam tshiab ntawm txheej txheej technology uas tso vapor-phase tshuaj uas muaj deposition ntsiab nyob rau saum npoo ntawm cov ntaub ntawv los ntawm lub cev los yog tshuaj txoj kev los ua nyias films.

Raws li lub hauv paus ntsiab lus ntawm cov txheej txheem deposition, vapor deposition technology yuav muab faib ua ob pawg: lub cev vapor deposition (PVD) thiab tshuaj vapor deposition (CVD).

Lub cev vapor deposition yog hais txog lub tshuab uas cov khoom vaporized rau hauv atoms, molecules los yog ionized rau hauv ions los ntawm lub cev txoj kev nyob rau hauv lub tshuab nqus tsev, thiab ib tug nyias zaj duab xis yog tso rau saum npoo ntawm cov khoom los ntawm ib tug roj theem txheej txheem.

Kev siv lub cev tso tawm feem ntau suav nrog peb txoj hauv kev: nqus evaporation, sputtering, thiab ion plating.

Lub cev vapor deposition muaj ntau yam khoom siv substrate thiab cov ntaub ntawv zaj duab xis; cov txheej txheem yog yooj yim, txuag khoom, thiab tsis muaj kuab paug; Cov zaj duab xis tau txais muaj qhov zoo ntawm qhov muaj zog adhesion rau zaj duab xis puag, niaj hnub zaj duab xis thickness, compactness, thiab tsawg pinholes.

Chemical vapor deposition yog hais txog ib txoj hauv kev uas cov roj sib xyaw ua ke nrog rau qhov chaw ntawm lub substrate ntawm qhov kub thiab txias los tsim cov hlau lossis cov yeeb yaj kiab sib xyaw rau ntawm qhov chaw ntawm lub substrate.

Vim hais tias cov tshuaj vapor deposition zaj duab xis muaj zoo hnav tsis kam, corrosion kuj, kub tsis kam thiab hluav taws xob, kho qhov muag thiab lwm yam khoom tshwj xeeb, nws tau dav siv nyob rau hauv machinery manufacturing, aerospace, tsheb thauj mus los, thee chemical kev lag luam thiab lwm yam kev lag luam teb.