Kusankhidwa kwa SMC mold surface treatment

Pofuna kukonza kukana kuvala ndi kukana kwa dzimbiri kwa nkhungu, nthawi zambiri amapatsidwa chithandizo choyenera chapamwamba.
Chromium plating ndi imodzi mwa njira zochizira pamwamba. Chromium plating wosanjikiza ali ndi mphamvu passivation mu mlengalenga, akhoza kusunga zitsulo kunyezimira kwa nthawi yaitali, ndipo palibe mankhwala zimachitika zosiyanasiyana acidic TV. Kulimba kwa zokutira kwa 1000HV ndikofanana ndi HRC65, kotero ili ndi kukana kwabwino kwambiri. Chosanjikiza cha chromium chimakhalanso ndi kukana kutentha kwakukulu, ndipo mawonekedwe ake ndi kuuma kwake sikunasinthe kwambiri akatenthedwa mpaka madigiri 500 mumlengalenga.
Nitriding ali ndi ubwino processing kutentha (nthawi zambiri 550 ~ 570 madigiri), mapindikidwe nkhungu pang'ono ndi mkulu kuuma kwa wosanjikiza analowerera (mpaka 1000 ~ 1200HV, lofanana HRC65 ~ 72), kotero ndi abwino kwambiri mankhwala pamwamba kuumba zopangidwa pulasitiki nkhungu. Zitsulo zomwe zili ndi alloy element monga chromium, molybdenum, aluminiyamu, vanadium, ndi titaniyamu zili ndi nitriding yabwino kuposa zitsulo za carbon. Chithandizo cha nitriding chikagwiritsidwa ntchito ngati nkhungu za SMC kumatha kusintha kwambiri kukana kuvala.