Ukukhethwa konyango lomphezulu lwe-SMC lokungunda

Ukuze kuphuculwe ukunyanzeliswa kokunxiba kunye nokumelana nokubola kwendawo yokubumba, ihlala iphantsi konyango olufanelekileyo lomphezulu.
Ukucwenga kweChromium yenye yezona ndlela zisetyenziswayo zonyango lomphezulu. Umaleko wokucwenga wechromium unamandla okudlula emoyeni, unokugcina ukukhazimla kwesinyithi ixesha elide, kwaye akukho mpendulo yekhemikhali eyenzekayo kwiintlobo ngeentlobo zemithombo yeendaba ezineasidi. Ubulukhuni bokugquma be-1000HV bulingana ne-HRC65, ngoko inokumelana okugqwesileyo kokunxiba. I-chromium plating layer nayo inokumelana nobushushu obuphezulu, kwaye ukubonakala kwayo kunye nokuqina kwayo akuzange kutshintshe kakhulu xa ishushu kwi-500 degrees emoyeni.
I-Nitriding ineenzuzo zokulungisa iqondo lobushushu (ngokubanzi i-550 ~ 570 degrees), i-deformation encinci kakhulu yokungunda kunye nokuqina okuphezulu komgangatho ongenayo (ukuya kuthi ga kwi-1000 ~ 1200HV, elingana ne-HRC65 ~ 72), ngoko ke ifanelekile kakhulu kunyango lwe-surface. iimveliso zeplastiki ezibunjiweyo zokubumba. Iintsimbi eziqulethe izinto ze-alloy ezifana ne-chromium, i-molybdenum, i-aluminiyam, i-vanadium, kunye ne-titanium zineempawu ezingcono ze-nitriding kune-carbon steels. Unyango lwe-nitriding xa lusetyenziswa njengongundo lwe-SMC lunokuphucula kakhulu ukuxhathisa ukunxiba.