Atina'e ma tulaga fa'ainisinia o mea fa'apipi'i sima

Atina'e ma aga fa'atekinisi o mea fa'amea lau sima

I le masini, o le meafaigaluega e masani ona taʻua o "fofoga faʻatau nifo", ma o le tipiina o mea faigaluega o se tasi lea o mea taua e fuafua ai lona gaosiga lelei, tau o gaosiga ma le gaosiga lelei. O le mea lea, o le filifiliga saʻo o le tipiina o mea faigaluega e taua tele, o naifi sima, faʻatasi ai ma a latou vevela sili ona lelei, faʻaofuofu teteʻe ma mautu vailaʻau, faʻaalia le lelei o meafaigaluega masani e le mafai ona faʻatusalia i le fanua o le tipiina maualuga ma le tipiina o mea faigata-i-masini, ma o mea autu autu o naifi sima o Al ma Si. O le tele o mea i totonu o le eleele e mafai ona taʻua e le uma ma e le uma. O le mea lea, o le faʻamoemoega o le faʻaogaina o meafaigaluega fou sima e matua lautele lava.

Muamua, o le ituaiga o meafaigaluega sima

O le alualu i luma o mea faigaluega sima o loʻo taulaʻi i le faʻaleleia atili o le faʻaogaina o mea faʻameamea faʻaleaganuʻu, faʻamamaina o fatu, faʻapipiʻiina o vaega, faʻapipiʻiina, faʻaleleia atili o le sintering ma le atinaʻeina o oloa fou, ina ia maua ai le maualuga o le vevela, faʻaofuofu teteʻe ma teteʻe. Lelei lelei le fa'atinoina ma e mafai ona fa'amalieina mana'oga o le saosaoa saosaoa machining. E mafai e Henan Institute of Superhard Materials ona vaevaeina mea faigaluega sima i ni vaega se tolu: alumina, silicon nitride ma boron nitride (cubic boron nitride tool). I le fanua o le tipi u'amea, alumina sima lau ma silicon nitride sima lau o lo'o ta'ua fa'atasi o lau sima; i inorganic non-metal mea, cubic boron nitride mea e auai i se vasega tele o mea sima. O uiga ia o ituaiga sima e tolu.

(1) Alumina (Al2O3)-faʻavae ceramic: Ni, Co, W, poʻo se mea faapena e faʻaopoopoina e avea o se uʻamea faʻapipiʻi i le carbide-based ceramic, ma le malosi faʻapipiʻi i le va o le alumina ma le carbide e mafai ona faʻaleleia. E lelei le ofuina o le ofuina ma le vevela, ma o lona maualuga o le vevela o vailaʻau e le faigofie ona faʻafefe poʻo faʻamaʻi faʻamaʻi ma le uʻamea. O le mea lea, o le alumina-based ceramic cutters o loʻo i ai le tele o faʻaoga faʻaoga, talafeagai mo le sila ma le uʻamea. Masini maualuga-saosaoa o ona alloys; ona o le faʻaleleia atili o le teteʻe o le vevela, e mafai foi ona faʻaaogaina mo le viliina poʻo le fuafuaina i lalo o tulaga faʻalavelave faʻalavelave, ae e le talafeagai mo le faʻaogaina o alumini alumini, titanium alloys ma niobium alloys, a leai e faigofie ona ofuina vailaʻau.

(2) Silicon nitride (Si3N4)-faʻavae sima tipi: O se sima e faia e ala i le faʻaopoopoina o se aofaiga talafeagai o le carbide uʻamea ma se mea faʻamalosi uʻamea i se matrix nitride silicon, ma le faʻaaogaina o se mea faʻamalosia faʻamalosi (faʻapitoa foi o se faʻamalosi faʻamalosia aafiaga). O loʻo faʻaalia i le maualuga o le maaa, lelei le faʻaogaina o le ofuina, lelei o le vevela ma le faʻamaʻiina o le faʻamaʻiina, ma o le vailaʻau faʻamaʻi i le va o le nitride silicon ma le carbon ma elemene uʻamea e laʻititi, ma e maualalo foʻi le faʻalavelave. E fetaui mo le faʻamaeʻaina, faʻamaeʻaina, faʻamaeʻaina poʻo le faʻamaeʻaina.

(3) Boron nitride ceramic (cubic boron nitride cutter): maualuga le maaa, ofuina teteʻe, lelei vevela, mautu lelei vevela, conductivity lelei vevela, faʻaitiitiga faʻafefeteina, ma le coefficient itiiti o le faalauteleina laina. Mo se faʻataʻitaʻiga, Hualing cubic boron nitride meafaigaluega BN-S20 grade e faʻaaogaina mo le roughing uʻamea faʻamaʻaʻaina, o le BN-H10 grade e faʻaaogaina mo le maualuga o le faʻamaeʻaina o le uamea faʻamaʻa, BN-K1 vasega o loʻo faʻaogaina le uʻamea maaa maualuga, BN-S30 vasega maualuga le saosaoa tipi lefulefu Faʻamea uʻamea e sili atu le tamaoaiga nai lo faʻapipiʻi sima.

Lona lua, o uiga o meafaigaluega sima

O uiga o meafaigaluega sima: (1) lelei le ofuina; (2) maualuga le vevela tetee, maaa mumu lelei; (3) le umi o meafaigaluega e tele taimi pe oʻo lava i le tele o taimi e sili atu nai lo meafaigaluega masani, faʻaitiitia le aofaʻi o suiga o meafaigaluega i le taimi o gaioiga, faʻamautinoa Laiti taper ma le maualuga maualuga o le mea faigaluega e faʻaaogaina; (4) e le gata e mafai ona faʻaaogaina mo le faʻamaʻaina ma le faʻamaeʻaina o mea maualuga-maaa, ae faʻapea foʻi mo le masini ma le tele o aʻafiaga e pei o le viliina, fuafuaina, faʻalavelave tipi ma avanoa avanoa; (5) Pe a tipi le lau sima, o le feteʻenaʻiga ma le uʻamea e laʻititi, o le tipiina e le faigofie ona faʻapipiʻi i le lau, e le faigofie ona tupu le pito o loʻo fausia, ma e mafai ona faia le tipi maualuga.

Pe a faʻatusatusa i faʻapipiʻi faʻapipiʻi sima, faʻapipiʻi sima e mafai ona tatalia le maualuga o le vevela o le 2000 ° C, aʻo faʻamaʻaʻaina uʻamea malo i le 800 ° C; o meafaigaluega sima e maualuga atu le vevela o kemisi mautu ma e mafai ona tipi i le saoasaoa maualuga, ae o le le lelei o faʻapipiʻi sima. Malosi ma faigata e maualalo ma faigofie ona malepe. Mulimuli ane, na fa'alauiloa mai ai mea fa'ameamea ole boron nitride (e ta'ua mulimuli ane o mea faigaluega cubic boron nitride), lea e masani ona fa'aaogaina mo le feliuliua'i, viliina, ma mea fa'a'ele'ele malosi. O le maaa o tipi kupita boron nitride e sili atu le maualuga nai lo mea faʻapipiʻi sima. Ona o lona maaa maualuga, ua taʻua foi superhard mea ma taimane. E masani ona fa'aaogaina e fa'agaoioia mea e ma'a'a maualuga atu nai lo le HRC48. E sili ona lelei le vevela o le vevela - e oʻo atu i le 2000 ° C, e ui lava e sili atu ona pala nai lo lau carbide sima, ae ua faʻaleleia atili le malosi o le malosi ma le tuʻimomomoina faʻatusatusa i mea faigaluega alumina. E le gata i lea, o nisi meafaigaluega faʻapitoa kupita boron nitride (e pei o Huachao Super Hard BN-K1 ma BN-S20) e mafai ona tatalia le uta vaʻaia o masini gaogao ma mafai ona tatalia le aʻafiaga o masini faʻavavevave ma faʻamaeʻaina. O le ofuina ma le tipiina o le vevela, o nei uiga e mafai ona faʻafeiloaʻi le faiga faigata o le uamea faʻamaʻa ma le maualuga o le maaa o le uʻamea faʻatasi ma meafaigaluega nitride cubic boron.