Nickel ua npuas ncauj yog cov khoom siv los tsim cov roj teeb electrodes. Feem ntau, txoj kev tsim cov khoom siv nickel ua npuas ncauj yog raws li nram no: thawj zaug conductive polyurethane daim txhuam cev, ces electrodeposition, thiab thaum kawg sintering.
Hauv cov txheej txheem no, electroplating feem ntau siv peb txoj hauv kev: electroless plating, electroplating conductive nplaum thiab nqus plating; electrodeposition tuaj yeem siv sulfate lossis sulfamate nickel plating; Lub hom phiaj ntawm cov txheej txheem sintering yog kom hlawv cov polyurethane daim txhuam cev hauv huab cua thiab txo nws hauv hydrogen. Muaj ob txoj hauv kev rau sintering txo qis hauv huab cua, nyob rau hauv uas polyurethane daim txhuam cev raug hlawv hauv huab cua los ntawm kev kho oxidative decarburization ntawm 300 ~ 700 ° C; sintering thiab txo yog nqa tawm nyob rau hauv ib tug txo qhov chaw ntawm 800 ~ 1000 ° C nyob rau hauv ib tug hydrogen txo cua rau 30 ~ 60 feeb, Qhov txo qhov cua yog ammonia decomposition gas, thiab noj decomposition roj yog 0.8 ~ 1.2 L / g (0.8). ~ 1.2 litres ntawm ammonia decomposition gas yog noj ib gram ntawm npib tsib xee).
Cov txheej txheem muaj feem xyuam rau ib txoj hauv kev npaj foamed npib tsib xee los ntawm kev ua, electrodeposition thiab sintering ntawm polyurethane daim txhuam cev. Qhov kub txo yog 400 ~ 1000 ℃, lub sij hawm txo yog 30 ~ 60 feeb, thiab kev noj cov roj decomposition yog 0.4 ~ 0.8 L / g. Lub ammonia decomposition gas (0.4-0.8 litres ntawm ammonia decomposition gas yog noj ib gram ntawm npib tsib xee) yog ib tug sib tov ntawm nitrogen thiab hydrogen, thiab nws volume ratio yog 1: 3.
Cov tshuaj tiv thaiv mechanism yog tias nyob rau hauv hydrogen txo qhov chaw, cov nickel ua npuas ncauj uas muaj polyurethane daim txhuam cev yog ncaj qha pyrolyzed thiab sintered los ntawm electrodeposition, thiab cov pa roj carbon thiab hydrogen react los tsim gaseous hydrocarbons xws li CH4 thiab C2H6. Cov txheej txheem gasification no tuaj yeem ua rau cov graphite hauv lub cev ntxeem tau. C los ntawm kev ntxuav.
Nickel ua npuas ncauj khaws cia li cas?
1. Tsim cov npib tsib xee ua npuas ncauj kom txo tau cov khoom siv raw, nrog cov ntim loj thiab lub teeb yuag, yuav tsum muaj kev tiv thaiv hluav taws, tiv thaiv dej, cua thiab lwm yam kev xav tau; tsim kom muaj chaw cia tshuaj lom neeg: nws muaj cov yam ntxwv ntawm ntau yam, siv dav, cov hnab yas tsis muaj dej noo, qhov cua, thiab lwm yam.; tsim kom muaj chaw cia tshuaj lom neeg, cov khoom siv hlau: lub ntsiab lus tseem ceeb ntawm cov xim hlau nickel
2. Tus naj npawb ntawm cov khoom ntawm foamed nickel ntau lawm kab yog teem tom qab txhua qhov chaw cia. Txhawm rau ua kom yooj yim rau kev ua, khaws cia thiab kev sib hloov, cov khoom ntim khoom ntim rau cov khoom tshwj xeeb tau teeb tsa.
3. Cov khoom ua npuas ncauj npib tsib xee yog tsim los ntawm ob ntu: thawj ntu yog cov khoom tiav tsis muaj shearing, uas yog khaws cia cais los tiv thaiv kev sib tsoo thiab extrusion. Ob qhov no yog sheared raws li qhov xav tau ntawm cov neeg siv khoom ntawm cov khoom, thiab tau cim meej meej ntawm lub pob. Cia, ntim, noo noo-pov thawj thiab siab-resistant raws li cov qauv hauv tsev so.
Post lub sij hawm: May-20-2022
