Umgaqo weMetallurgical Powder Sintering

Indlela yokwenza i-powder metallurgy kukwenza izinto eziluhlaza ze-alloy zibe ngumgubo, emva koko udibanise le micu kwixabiso elifanelekileyo, uze ucinezele kwaye uqinise kwimo ethile. Ezi bloko zomgubo zibekwe kwindawo yokunciphisa, efana ne-hydrogen, ifudunyezwe, kwaye ifakwe kwi-sintered ukwenza i-alloy. Le yindlela ye-metallurgical eyahluke ngokupheleleyo kwiindlela zangaphambili zokuphosa.

I-Sintering njengoko kubhekiselwa kuyo apha inokuchazwa ngokulula njengokukhuthazwa kokuhlanganiswa kweenkozo zetsimbi ngesenzo soxinzelelo kunye nobushushu. Sifaka umlinganiselo othile woxinzelelo kwipowder kunye nokwakheka kwe-alloying ukuyidibanisa. Kwiqondo lokushisa eliphezulu, iipowders ezisondeleneyo zinamathela omnye komnye kwaye ngokuthe ngcembe zizalise i-voids ukwenza i-alloy high-density alloy. Ubushushu bokufudumala ngeli xesha bubushushu obunyibilikayo becandelo eliphantsi lokunyibilika kumacandelo e-alloy. Ngoko ke, i-ingot ye-alloy i-sintered kwiqondo lokushisa elingaphantsi kwendawo yokunyibilika kwayo yonke i-powder composition. Le ndlela ifana nokudibanisa iinkqubo ezimbini zokunyibilika kunye nokuphosa, kwaye iipropati zayo zisondele kwii-alloys ezityhidiweyo. Kodwa ukusuka kwindawo yokujonga i-metallographic, kufuneka ibe lisebe le-alloy castings.

I-carbide enesamente iveliswa yile ndlela yomgubo wesinyithi. Ngokwesiqhelo, umgubo onje ngetungsten, ikhabhoni, icobalt, ititanium, kunye necerium zisetyenziselwa ukuxuba ibhetshi, emva koko zicinezelwe kwaye zifakwe kwi-sintered ukwenza ialloys. Ngoko ke, imveliso yale nkqubo ye-metallurgical ibizwa ngokuba yi-cemented carbide okanye i-cemented carbide. Kwiminyaka yakutshanje, iindlela ze-powder metallurgy ziphuhliswe ngokukhawuleza. I-Carbide, i-alloys ene-oyile, uqhagamshelwano lombane, amavili okusila idayimane adityaniswe ngesinyithi, kunye neemveliso ezikhethekileyo zentsimbi zokuhombisa zenziwe kusetyenziswa le ndlela yomgubo wesinyithi.

Ukuba unomdla kwiimveliso ze-tungsten carbide kwaye ufuna ulwazi oluthe kratya kunye neenkcukacha, ungaQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.