Kukho iziseko ezininzi zokukhetha izixhobo ze-graphite electrode, kodwa kukho iikhrayitheriya ezine eziphambili:
1. Ububanzi obuphakathi bezinto ezisetyenzisiweyo
Ububanzi obuqhelekileyo bezinto ezisetyenzisiweyo buchaphazela ngokuthe ngqo imeko yokukhutshwa kwezinto.
Okukhona ubukhulu obuqhelekileyo bezinto ezisetyenziswayo buncinci, kokukhona ukukhutshwa kwezinto ezifanayo, kokukhona ukukhutshwa kwazo kuzinze ngakumbi, kwaye kokukhona umgangatho womphezulu ungcono.
Kwizinto zokubumba nezokufaka iimold ezidityanisiweyo ezineemfuno eziphantsi zomphezulu kunye nokuchaneka, kudla ngokucetyiswa ukuba kusetyenziswe amasuntswana aqinileyo, anjenge-ISEM-3, njl.njl.; kwizinto zokubumba ze-elektroniki ezineemfuno eziphezulu zomphezulu kunye nokuchaneka, kucetyiswa ukuba kusetyenziswe izixhobo ezinobukhulu obuphakathi besuntswana obungaphantsi kwe-4μm.
Ukuqinisekisa ukuchaneka kunye nokugqitywa komphezulu wesikhunta esicutshungulweyo.
Okukhona ubukhulu obuphakathi bezinto ezibonakalayo buncinci, kokukhona ukulahleka kwezinto ezibonakalayo kuncinci, kwaye kokukhona amandla phakathi kwamaqela ee-ion ekhula.
Umzekelo, i-ISEM-7 idla ngokucetyiswa kwiimolds ezichanekileyo zokuphosa iidayi kunye neemolds zokubumba. Nangona kunjalo, xa abathengi beneemfuno eziphezulu kakhulu zokuchaneka, kucetyiswa ukusebenzisa izixhobo ze-TTK-50 okanye ze-ISO-63 ukuqinisekisa ukulahleka okuncinci kwezinto.
Qinisekisa ukuchaneka kunye noburhabaxa bomphezulu wesikhunta.
Kwangaxeshanye, okukhona amasuntswana emakhulu, kokukhona isantya sokukhupha sikhawuleza kwaye kokukhona ukulahleka komatshini onzima kuncinci.
Isizathu esiphambili kukuba amandla angoku enkqubo yokukhupha ahlukile, nto leyo ebangela amandla ahlukeneyo okukhupha.
Kodwa ukugqitywa komphezulu emva kokukhupha amanzi kuyatshintsha notshintsho lwamasuntswana.
2. Amandla okugobeka kwezinto
Amandla okugobeka kwezinto ezibonakalayo abonisa ngokuthe ngqo amandla azo, nto leyo ebonisa ukuqina kwesakhiwo sangaphakathi sezinto ezibonakalayo.
Izixhobo ezinamandla aphezulu zisebenza kakuhle xa kukhutshelwa ngaphandle. Kwii-electrode ezineemfuno ezichanekileyo, zama ukukhetha izixhobo ezinamandla angcono.
Umzekelo: I-TTK-4 inokuhlangabezana neemfuno zeemolds ze-elektroniki eziqhelekileyo, kodwa kwezinye iimolds ze-elektroniki ezineemfuno ezikhethekileyo zokuchaneka, ungasebenzisa ubungakanani obufanayo be-particle kodwa izinto ezinamandla aphezulu kancinci ze-TTK-5.
3. Ukuqina konxweme lwento
Kwingqiqo engaphantsi kwengqondo yegrafiti, igrafiti ithathwa njengento ethambileyo.
Nangona kunjalo, idatha yovavanyo lokwenyani kunye neemeko zokusetyenziswa zibonisa ukuba ubunzima begrafiti buphezulu kunobo bezinto zesinyithi.
Kwishishini legrafiti ekhethekileyo, umgangatho wovavanyo lobulukhuni oluqhelekileyo yindlela yokulinganisa ubulukhuni beShore, kwaye umgaqo wayo wovavanyo wahlukile kowesinyithi.
Ngenxa yesakhiwo segrafiti esinamaleko, sisebenza kakuhle kakhulu ekusikeni ngexesha lenkqubo yokusika. Amandla okusika amalunga ne-1/3 kuphela yezixhobo zobhedu, kwaye umphezulu emva komatshini kulula ukuwuphatha.
Nangona kunjalo, ngenxa yobunzima bayo obuphezulu, ukuguguleka kwezixhobo ngexesha lokusika kuya kuba kukhulu kancinci kunokwezixhobo zokusika zesinyithi.
Kwangaxeshanye, izixhobo ezinobunzima obuphezulu zilawula ngcono ukulahleka kokukhupha.
Kwinkqubo yethu yezinto ze-EDM, kukho izinto ezimbini onokukhetha kuzo kwizinto ezinobukhulu obufanayo besuntswana ezisetyenziswa rhoqo, enye inobunzima obuphezulu kwaye enye inobunzima obuphantsi ukuhlangabezana neemfuno zabathengi abaneemfuno ezahlukeneyo.
imfuno.
Umzekelo: izixhobo ezinobukhulu obuphakathi be-particle obuyi-5μm ziquka i-ISO-63 kunye ne-TTK-50; izixhobo ezinobukhulu obuphakathi be-particle obuyi-4μm ziquka i-TTK-4 kunye ne-TTK-5; izixhobo ezinobukhulu obuphakathi be-particle obuyi-2μm ziquka i-TTK-8 kunye ne-TTK-9.
Ngokuyintloko kuqwalaselwa ukhetho lweentlobo ngeentlobo zabathengi ekukhutshweni nasekuchwethezweni kombane.
4. Ukumelana okungaphakathi kwezinto
Ngokwezibalo zenkampani yethu malunga neempawu zezinto, ukuba amasuntswana aqhelekileyo ezinto ziyafana, isantya sokukhupha esinokumelana okuphezulu siya kuba sezantsi kune-resistivity ephantsi.
Kwizinto ezinobukhulu obufanayo be-particle, izinto ezinokumelana okuphantsi ziya kuba namandla kunye nobunzima obuphantsi ngokufanayo kunezo zinamandla aphezulu.
Oko kukuthi, isantya sokukhupha kunye nokulahleka kuya kwahluka.
Kungoko ke, kubaluleke kakhulu ukukhetha izinto ezisetyenziswayo ngokweemfuno zokwenyani.
Ngenxa yobuchule be-powder metallurgy, iparameter nganye yebhetshi nganye yezinto inoluhlu oluthile lokuguquguquka kwexabiso layo elimeleyo.
Nangona kunjalo, iziphumo zokukhupha izinto zegrafiti zodidi olufanayo ziyafana kakhulu, kwaye umahluko kwiziphumo zokusetyenziswa ngenxa yeeparamitha ezahlukeneyo mncinci kakhulu.
Ukukhethwa kwezinto ze-electrode kunxulumene ngokuthe ngqo nesiphumo sokukhupha. Ubukhulu becala, ukuba ukukhethwa kwezinto kufanelekile na kumisela imeko yokugqibela yesantya sokukhupha, ukuchaneka komatshini kunye noburhabaxa bomphezulu.
Ezi ntlobo zine zedatha zimele ukusebenza okuphambili kwezinto kwaye zimisela ngokuthe ngqo ukusebenza kwezinto.
Ixesha lokuthumela: Matshi-08-2021