Kwiminyaka yakutshanje, izixhobo zokusika ze-PCD ziye zasetyenziswa ngakumbi kumashishini okulungisa i-aluminium, i-alloys ye-aluminium, ubhedu, kunye nezinye izinto ezingezizo ezentsimbi.
Ziziphi iingenelo zePCD izixhobo zokusika kwi-aluminium processing kunye nendlela yokukhetha izixhobo ezifanelekileyo zokusika i-PCD?
Zintoni iiIzixhobo zokusika zePCD?
Izixhobo zokusika ze-PCD ngokubanzi zibhekisa kwizixhobo zedayimane ze-polycrystalline.Icwecwe le-PCD elihlanganisiweyo elisetyenzisiweyo lifakwe kwi-sintered ukusuka kumgubo wedayimane wendalo okanye owenziwe ngobuqhetseba kunye nezibophelelo (eziqulethe iintsimbi ezifana ne-cobalt kunye ne-nickel) kumlinganiselo othile kwiqondo lokushisa eliphezulu (1000-2000 ℃) kunye noxinzelelo oluphezulu (50000 ukuya kwi-100000 atmospheres).Ayinabo kuphela ubunzima obuphezulu kunye nokumelana nokunxiba kwe-PCD, kodwa ikwanamandla amahle kunye nokuqina kwe-carbide.
Emva kokucutshungulwa kwisixhobo sokusika, sineempawu zokuqina okuphezulu, ukuhanjiswa okuphezulu kwe-thermal, i-coefficient ephantsi yokwandiswa kwe-thermal, i-modulus ephezulu ye-elastic, kunye ne-coefficient ephantsi ye-friction.
Izixhobo zokusika ze-OPT ngumboneleli okumgangatho ophezulu we-PCD wokufaka, Siyakuxhasa ekuthengeni iimfuno zakho zonyaka ngamaxabiso akhuphisanayo, unikezela umgangatho ophezulu kunye noluhlu olubanzi lweenkonzo.
Izinto eziluncedo zokufakela i-PCD kwi-aluminium processing
(1) Ukuqina kwezixhobo zePCD kunokufikelela kwi-8000HV (i-80-120 amaxesha ee-carbides)
kwaye ukumelana kwabo nokunxiba kuhle kakhulu.
(2) I-thermal conductivity yezixhobo ze-PCD yi-700W / MK (i-1.5-9 amaxesha e-carbides), eyandisa kakhulu ubomi besixhobo ngenxa yokusebenza kwayo okuphezulu kobushushu.
(3) I-coefficient ye-friction yezixhobo ze-PCD ngokuqhelekileyo i-0.1 kuphela kwi-0.3, iphantsi kakhulu kune-carbides, enokunciphisa kakhulu ukunciphisa amandla kunye nokwandisa ubomi besixhobo.
(4) Izixhobo ze-PCD zine-coefficient encinci yokwandiswa kwe-thermal, i-deformation encinci ye-thermal, ukuchaneka okuphezulu kwe-machining kunye nomgangatho ophezulu womphezulu womsebenzi.
(5) Umphezulu wezixhobo zokusika ze-PCD unobudlelwane obuphantsi kunye nezinto ezingenayo i-ferrous kunye ne-non-metallic, ngoko akulula ukuvelisa i-chip buildup.
(6) Izixhobo ze-PCD zinemodyuli ephezulu ye-elastic kwaye ayifuni ukuphuka.I-radius edibeneyo yomgca wokusika ingaba ngumhlaba omncinci kakhulu, onokugcina ubukhali becala lokusika ixesha elide.
Ngokusekwe kwezi zibonelelo zingentla, izixhobo zePCD zinokusebenza nge-aluminium alloy imathiriyeli ngesantya esiphezulu kakhulu, kunye nobomi besixhobo samawaka aliqela ukuya kumashumi amawaka amaqhekeza.Ngokukodwa ngokufanelekileyo ukuveliswa kobuninzi besantya esiphezulu kunye nokusika okuphezulu (idijithali ye-3C, imboni yemoto, indawo ye-aerospace), njengokucubungula iigobolondo zemveliso yedijithali, iipiston zemoto, amavili emoto, amakhonkco e-roller, njl.
Indlela yokukhetha Izixhobo zokusika zePCD?
Ngokuqhelekileyo, ubukhulu beqhekeza le-PCD, bunamandla ukuxhathisa ukunxiba kwesixhobo.
Ngesiqhelo, i-PCD yesuntswana entle isetyenziselwa ukuchaneka okanye ukuchaneka kwe-Ultra, ngelixa izixhobo zePCD ezirhabaxa zisetyenziselwa ukwenziwa ngokurhabaxa.
Abavelisi bezixhobo bahlala bencoma ukusebenzisa amabakala e-PCD acolekileyo ukusetyenzwa kwe-silicon yasimahla kunye ne-silicon ephantsi ye-aluminium alloy, kunye nokusebenzisa amabakala e-PCD acolekileyo ukusetyenzwa kwe-silicon ephezulu ye-aluminium alloy, ngesizathu esifanayo.
Umgangatho womphezulu ocutshungulwayo zizixhobo ze-PCD awuxhomekanga kuphela kwi-particle ubukhulu besixhobo, kodwa kunye nomgangatho we-edge yesixhobo, ngoko umgangatho wezixhobo ze-PCD kufuneka ube ngcono.
Zimbini iindlela eziqhelekileyo zokusetyenzwa kwezixhobo zePCD, enye ingokusika okucothayo kocingo.Le ndlela ineendleko eziphantsi zokucwangcisa, kodwa umgangatho wemiphetho uphakathi.Enye indlela iphunyezwa ngokucutshungulwa kwelaser, eneendleko eziphezulu kancinci, kodwa umgangatho wesiphelo somphetho uphezulu kakhulu (kukwakho indlela yokuqala yokucoca ngelaser kwaye emva koko ukugaya ngokuchanekileyo, onomgangatho ongcono wokusika. ungqameko).Kusafuneka ukuba uhlawule ngakumbi xa ukhetha.
Ukuthetha nje, kuphelele apho.Ezinye iinkcukacha ezithe ngqo, kubandakanywa iindleko kunye neeparitha zokusika, nazo kufuneka zibhekiselele kwiiparitha zemveliso ezinikezelwa ngabavelisi abahlukeneyo.Ngaphezu koko, ukongeza kukhetho olufanelekileyo lwejiyometri yesixhobo kunye neeparamitha zokusika, ukusetyenzwa kwe-aluminium ngamanye amaxesha kufuna ukuba ababoneleli bezixhobo babonelele ngezisombululo kwiingxaki ezifunyenwe ngexesha lokusetyenziswa kwesixhobo.
Ixesha lokuposa: May-30-2023