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 "fofo faʻatau nifo", ma o le tipiina o mea faigaluega o se tasi lea o mea taua e fuafua ai lona gaosiga lelei, tau gaosiga ma le lelei o le gaosiga. O le mea lea, o le filifiliga saʻo o le tipiina o mea meafaigaluega e taua tele, o naifi sima, faʻatasi ai ma lo 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 tipi maualuga ma le tipi faigata-i. -mea masini, ma mea autu autu o naifi sima o Al ma Si. O le tele o mea o loʻo 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, le ituaiga o meafaigaluega sima

O le alualu i luma o mea faigaluega sima o loʻo taulaʻi i le faʻaleleia atili o le faʻatinoina o mea faʻaleaganuʻu meafaigaluega, faʻamamaina o fatu, faʻapipiʻi vaega, faʻapipiʻiina, faʻaleleia o le sintering faagasologa ma le atinaʻeina o oloa fou, ina ia maua ai le maualuga o le vevela, faʻaofuofu teteʻe ma teteʻe. Lelei lelei le tipiina ma e mafai ona faʻafetaui manaʻoga 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 totonu o le fanua o le tipi u'amea, alumina ceramic lau ma silicon nitride ceramic lau o loʻo taʻua faʻatasi o lau sima; i inorganic non-metal mea, cubic boron nitride mea e aofia 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 e mafai ona faʻaleleia le malosi faʻapipiʻi i le va o le alumina ma le carbide. E lelei le ofuina o le tete'e ma le vevela, ma o lona maualuga maualuga kemikolo mautu e le faigofie ona interdif po'o fa'a'ave'avega fa'ama'i ma le u'amea. O le mea lea, o tipi sima fa'avae alumina o lo'o i ai le tele o fa'aoga fa'aoga, talafeagai mo le sila ma le u'amea. 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 gaosia o alumini alumini, titanium alloys ma niobium alloys, a le o lea e faigofie ona ofuina vailaʻau.

(2) Silicon nitride (Si3N4) -faʻavae sima tipi: O se sima e faia e ala i le faʻaopopoina o se aofaiga talafeagai o carbide uʻamea ma se uʻamea faʻamalosi faʻamalosi i se matrix nitride silicon, ma faʻaaogaina se faʻamalosia faʻamalosia (faʻapitoa foi o se faʻasalalauga. aafiaga faamalosia). O loʻo faʻaalia i le maualuga o le maʻaʻa, lelei le faʻaogaina o le ofuina, lelei 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 laʻititi foi le mea faʻafefe. E fetaui mo le faʻamaeʻaina, faʻamaeʻaina, faʻamaeʻaina poʻo le faʻamaeʻaina.

(3) Boron nitride ceramic (cubic boron nitride cutter): maualuga maaa, ofuina teteʻe, lelei le vevela, mautu lelei vevela, conductivity lelei vevela, faʻaitiitiga feeseeseaʻi coefficient, ma coefficient itiiti o le faalauteleina laina. Mo se faʻataʻitaʻiga, Hualing cubic boron nitride tool BN-S20 grade e faʻaaogaina mo le faʻafefeina o le uamea 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 saosaoa tipi. ash O le u'amea lafo e sili atu ona taugofie nai lo mea fa'apipi'i 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 numera o suiga meafaigaluega i le taimi o gaioiga, faʻamautinoa Laiti taper mamaualuga 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 i luga, 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 faʻamaluluga faʻamalosi 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 le boron nitride ceramics (lea ua ta'ua mulimuli ane o cubic boron nitride tools), lea e masani ona fa'aaogaina mo le feliuliua'i, viliina, ma le fa'alavalava o mea e sili ona 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'aogaina 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 le pala nai lo lau carbide sima, ae ua matua faʻaleleia atili le malosi o le malosi ma le faʻalavelave faʻatusatusa i mea faigaluega alumina. E le gata i lea, o nisi meafaigaluega faʻapitoa boron nitride (e pei o Huachao Super Hard BN-K1 ma BN-S20) e mafai ona tatalia le uta vaʻavaʻa o masini gaogao ma mafai ona tatalia le aʻafiaga o masini vavalo 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.