I-zinc casting ingagqunywa ngumgubo

i-zinc casting ingagqunywa ngumgubo

Inxalenye ephosiweyo iya kuba ne-porosity enokubangela iziphako kwi-coating kwiqondo lokushisa eliphezulu. Umoya ovalelwe kufutshane nomphezulu unokunwebeka kwaye uyiqhawule ifilimu ngexesha lenkqubo yonyango. Zisixhenxeral iindlela zokunciphisa ingxaki. Unako ukufudumeza inxalenye yokuqhubela umoya othile obangela ingxaki. Fudumeza inxalenye kwiqondo lokushisa malunga ne-50 ° F enkulu kunobushushu bonyango, yipholise phantsi, kwaye usebenzise isambatho. Nyanga kwelona qondo lobushushu lisezantsi kangangoko ukunqanda ingxaki. Ungasebenzisa kwakhona umgubo owenziwe umjikelezo wokuhamba oza kunceda ukukhulula umoya ngaphandle kokushiya ibala.

Ukubambelela kwi-zinc casting ngomnye umba. Ukuba i Ipeyinti musa ukunamathela, kungenxa yokuba awuzange ucoce kwaye ulungiselele umphezulu ngokuchanekileyo. Kufuneka ulahle yonke imihlaba ephilayo (igrisi, i-oyile, ubumdaka), kwaye kungafuneka upholise okanye uqhumise umphezulu ukuze ukhuphe umhlaba ongaphiliyo (ukukhululwa kufa okanye iikhompawundi ezifanayo). Jonga ubume bokusilela kokuncamathela. Ngaba kuzo zonke iindawo zomhlaba okanye kunokwenzeka ukuba kwenzeke kwiindawo ezifanayo ngamaxesha onke? Ukuba kukho kuyo yonke indawo, inxalenye ayicocekanga, kwaye ufuna isicoci esinobundlongondlongo esinobushushu obuninzi. Ukuba ikwimimandla ekwanti, mhlawumbi yimveliso ekhutshwa ngokufa. I-iron phosphate ishiya ifilimu kwi-zinc, kodwa ayisiyonto yokuguqula ngokwenene i-zinc. uzama inyathelo lepolish (ukuwisa iinxalenye kwisixhobo sokungcangcazela, ukucocwa kwe-ultrasonic okanye enye indlela efanayo) ukubona ukuba ingxaki yi-die-release agents. Thetha nomthengisi weekhemikhali kwakhona malunga nophicotho olucokisekileyo lwenxalenye kunye neendlela zokulungiselela.