Igikoresho cya PCD gikozwe mu icyuma cya diyama ya diyama no muri matrix binyuze mu bushyuhe bwo hejuru no guhatirwa cyane. Ntishobora gutanga gusa ikinamico kubyiza byo gukomera kwinshi, mu bushyuhe bwinshi, ubushyuhe buke bwo kwagura ibyuma, ibyuma bito, ntaho bihindura, ariko nabyo bizirikana imbaraga nyinshi za alloy.
Ubushyuhe butuje, gukomera kwikinisha no kwambara nibipimo nyamukuru bya PCD. Kuberako ikoreshwa ahanini mubushyuhe bwinshi no guhangayika cyane, umutekano wubushyuhe nikintu cyingenzi. Ubushakashatsi bwerekana ko imbaraga za PCD zigira ingaruka zikomeye ku kwambara no guhangana n'ingaruka. Amakuru yerekana ko iyo ubushyuhe burenze 750 ℃, kwambara no guhangana na PCD muri rusange bigabanuka kuri 5% -10%.
Imiterere ya Cry ya PCD igena imitungo yayo. Muri kamere, atome ya karubone ikora ubumwe bwa covatintoki hamwe na atome ine yegeranye, shaka imiterere ya tetrahed, hanyuma igashyiraho kristu ya atome, ifite icyerekezo gikomeye, no gukomera kwinshi. Ibipimo ngenderwaho byimikorere ya PCD ni ibi bikurikira: ① Gukomera birashobora kugera ku 8000 HV, inshuro 8-12 za Carbide; Umuyoboro wubushyuhe ni 700w / Mk, inshuro 1.5-9, ndetse hejuru ya PCBN numuringa; Coeeffificuri isanzwe iri muri rusange 0.1-0 gusa.3, munsi ya 0.4-1 ya karbide, kugabanya cyane imbaraga zo gukata; Coeffice yo Kwagura Ubushyuhe ni 0.9x10 gusa-5-1.18x10-6,1 / 5 ya karbide, ishobora kugabanya imiterere yubushyuhe kandi itezimbere gutunganya neza; ⑤ n'ibikoresho bidafite ibyuma ntibisanzwe byo gukora nodules.
Kuba Cubic Boron Nitride ifite ibimama bikomeye kandi birashobora gutunganya ibikoresho birimo ibyuma, ariko gukomera ni munsi ya diyama imwe, umuvuduko wo gutunganya uratinda kandi imikorere ni hasi. Diyama imwe ya Crytal ifite ubukana buhenze, ariko uburemere ntibuhagije. Anisotropy ituma byoroshye gutandukana hamwe (111) hejuru yimbaraga zo hanze, kandi imikorere itunganijwe ni ntarengwa. PCD ni synthesied ya Synthesied ya Micron-gIAMON-GHANNED TRIMES muburyo bumwe. Imiterere yikigereranyo cyinshi yinkunga yibice biganisha kuri kamere yayo ya macroscopic, kandi nta nkomoko yegamiye imbaraga za kanseri. Ugereranije na diyama imwe ya Crystal, imbibi z'ingano za PCD zigabanya neza anisotropy kandi zigahitamo imitungo.
1. Igishushanyo mbonera cyibikoresho bya PCD
(1) Guhitamo neza ingano ya PCD
Ubuntu, PCD igomba kugerageza kunonosora ibinyampeke, no gukwirakwiza inzitizi hagati y'ibicuruzwa bigomba kuba nkimyambarire bishoboka gutsinda anisotropi. Guhitamo ingano ya PCD nabyo bifitanye isano nibibazo byo gutunganya. Muri rusange, PCD hamwe nimbaraga nyinshi, gukomera, ingaruka nziza zingaruka ningano nziza zirashobora gukoreshwa mugushiramo cyangwa kurangiza, na pcd yintete zibabaje zirashobora gukoreshwa muri rusange. Ingano ya PCD irashobora guhindura cyane imikorere yambaye igikoresho. Ibitabo bireba byerekana ko iyo ingano zifatika ari nini, kwambara kwambara buhoro buhoro byiyongera buhoro buhoro hamwe no kugabanuka kw'ingano, ariko iyo ingano y'ibinyampeke ari nto cyane, iri tegeko ntirikoreshwa.
Ubushakashatsi bujyanye no guhitamo ifu enye za diyama hamwe nubunini bwimibare ya 10um, 5um, 2um na 1um, kandi bitandukanijwe nubunini bwibikoresho fatizo, Corosrale Bitandukanije cyane; Hamwe no kugabanuka kwa ②, kwambara no kurwanya ubushyuhe bwa PCD buhoro buhoro byagabanutse.
(2) Guhitamo gushyira mu gaciro umunwa wo mu kanwa no gutwika ubunini
Imiterere yumunwa urimo ibyuma bine: ihindagurika, uruziga rwa blot, impfizi ku ruziga rwa blunt kuzenguruka no gutya. Imiterere ityaye ityaye ituma impande zikaze, umuvuduko ukabije wihuta, urashobora kugabanya cyane imbaraga zabicuruzwa, ukwiranye nubunini bwibicuruzwa, birakwiriye kuri silicon nkeya ya silicon alumini Imiterere yizengurutse irashobora guta agaciro umunwa, gushiraho r inguni, ibuza neza ibirundiro, bikwiranye no gutunganya imigati / hejuru ya silicon alumunum. Mubihe bimwe byihariye, nko gukata ubujyakuzimu hamwe nicyuma gito cyo kugaburira, imiterere yo kuzenguruka. Imiterere y'imitwe ihindagurika irashobora kongera impande n'impande, uhungabanya icyuma, ariko icyarimwe bizamura umuvuduko no gutemangira umutwaro uremereye wa silicon alumini.
Kugirango woroshye EDM, mubisanzwe uhitemo urupapuro ruto rwa PDC (0.3-1.0mm), wongeyeho urwego rwa Carbide, umubunga wose wibikoresho ni abantu 28mm. Igice cya Carbide ntigomba kuba kinini cyane kugirango wirinde kwihagararaho biterwa nitandukaniro ryimihangayiko hagati yimyitozo
2, PCD igikoresho cyo gukora
Igikorwa cyo gukora cya PCD igikoresho kigena imikorere yimikorere nubuzima bwa serivisi yigikoresho, aricyo rufunguzo rwo gusaba no guteza imbere. Igikorwa cyo gukora cyibikoresho bya PCD cyerekanwe ku gishushanyo cya 5.
(1) Gukora ibinini bya PCD (PDC)
① inzira yo gukora kuri PDC
PDC muri rusange igizwe nifu isanzwe cyangwa synthetic diyama hamwe numukozi uhuza ubushyuhe bwinshi (1000-2000 ℃) hamwe nigitutu kinini (5-10). Umukozi ushinzwe kuyobora ikiraro gishinzwe kuyobora hamwe na Tic, Sic, Fe, CO, NI, HOS. Nkibice nyamukuru byashyizwe muri skeleton yikiraro gishinzwe guhuza. PDC muri rusange ikorwa muri disiki hamwe na diameter ihamye hamwe nubunini, no gusya kandi bisuka nibindi bihuriye kumubiri no mu miti. Mubyukuri, uburyo bwiza bwa PDC bugomba kugumana ibintu byiza byumubiri bya diyama imwe hashoboka, kubwibyo, inyongeramuzi mu mubiri wibyaha zigomba kuba nke, icyarimwe, hamwe na DD yo guhuza ibishoboka byose,
Gushyira mu bikorwa no guhitamo binders
Binder nikintu cyingenzi kigira ingaruka kumutekano wibikoresho bya PCD, bigira ingaruka muburyo bwo gukomera kwayo, kwambara imbaraga zo kurwanya no gushikama. Uburyo rusange bwa PCD buhuza ni: icyuma, coballat, nikel nibindi byishimo. CO na W Ifu ivanze yakoreshejwe nkumukozi ushiramo, kandi imikorere yuzuye ya PCD yari nziza mugihe cyumuvuduko wa Syntes ari 5.5 GPA, ubushyuhe bwimiryango ni 1450 ℃ no kwikinisha kuri 4min. Sic, Tic, WC, Tib2, nibindi bikoresho ceramic. Sic ituze ryumuriro wa sic iruta iyo co, ariko ubukana no kuvunika biratose. Kugabanya ubunini bwibintu fatizo birashobora guteza imbere ubukana no gukomera kwa PCD. Nta kumeza, hamwe nishusho cyangwa izindi karubone mu bushyuhe bwa ultra-burebure kandi igitutu kinini cyatwikiriye na nanoscale diyama (npd). Gukoresha Igishushanyo nkuwanzaga Gutegura NPD nigiheruro gisaba cyane, ariko NPD ya Synthetic ifite ubukana buhebuje hamwe nubukorikori bwiza.
Guhitamo no kugenzura ③ grains
Ifu ya diyabe mbisi nigikoresho cyingenzi kigira ingaruka kumikorere ya PCD. Shyira micropowder ya diamant, yongeraho ibintu bike bibangamira imirongo idasanzwe yo gukura no guhitamo ibintu bifatika birashobora kubuza inyongeramubano zirashobora kubuza gukura kwa diyama idasanzwe.
NPD yo hejuru ya NPD hamwe nuburyo bumwe bushobora gukuraho neza anisotropy no kurushaho kunoza ibintu bya mashini. Ifu ya Nanographite yateguwe nuburyo bwo gusya umupira mwinshi yakoreshejwe mugukoresha ibinini bya ogisijeni hejuru yimyaka 18 GPA na Granulay NPD, kandi ubukana bwa NPD, kandi gukomera kwa NPD
Kuvura imiti yatinze
Ku bushyuhe bumwe (200 ° Umutekano wa Tratible wa PCD utezimbere mugihe codalt yo gukuraho ubujyakuzimu. Ku rwego rwo gukura-kwiyongera kwa PCD, ubuvuzi bukomeye burashobora gukuraho rwose co, ariko bifite uruhare runini kumikorere ya polymer; Ongeraho Tic na WC kugirango uhindure imiterere yubukorikori no guhuza no kuvura aside ikomeye kugirango utezimbere guhoraho PCD. Kugeza ubu, inzira yo gutegura ibikoresho bya PCD iratera imbere, ubupfura bw'ibicuruzwa ari byiza, inganda zijyanye no gutera imbere, zaratera imbere vuba.
(2) gutunganya icyuma
Gukata
PCD ifite ubukana buhenze, kwambara neza no gukora ibintu byinshi bigoye.
② Uburyo bwo gusudira
PDC n'umubiri wincre ukoresheje clamp, guhuza no kuriga. Kwitsara ni ugukanda PDC kuri matrix ya karbide, harimo gusudira ya vacuum, gusunika kwambukiranya kwa Larcul, hakurya ya trans. Ubwiza buhebuje bufitanye isano na flux, gusudira tkoloy na ubushyuhe bwo gusudira. Ubushyuhe bwo gusudira (muri rusange burenze 700 ° ℃) bifite ingaruka zikomeye, ubushyuhe buri hejuru cyane, cyangwa "gutwika", kandi no "gutwika hejuru", ubushyuhe buke buzatera imbaraga zidasanzwe. Ubushyuhe bwo gusudira burashobora kugenzurwa nigihe cyuburezi hamwe nubujyakuzimu bwa PCD umutuku.
Blade inzira yo gusya
PCD igikoresho cyo gusya nurufunguzo rwo gukora. Mubisanzwe, agaciro ka icyuma cyicyuma nicyuma kiri muri 5um, na radiyo ya ARC iri muri 4um; Ahantu h'imbere hamwe no gukata neza neza kurangiza, ndetse ukagabanya hejuru yo gukata imbere ya 0 0.01 μ kugirango uhuze ibisabwa byindorerwamo, kora chip zigenda hejuru yicyuma kandi irinde icyuma.
Inzira yo gusya ikubiyemo diyama yo gusya imashini yo gusya gusya, amashanyarazi asya. Muri bo, diyama yo gusya imashini isya gusya ni ukuze cyane, ibyakoreshejwe cyane.
Ubushakashatsi bujyanye: ① Gusya Ibiziga byo gusya bizaganisha ku ntwaro zikomeye, kandi ubunini bw'uruziga rwo gusya rugabanuka, kandi ubwiza bw'icyuma kiba cyiza; Ingano ya ② Gusya ibiziga bifitanye isano rya hafi nibintu byiza byibikoresho byiza cyangwa ultrafine ibikoresho bya PCD, ariko bifite ingaruka nke kubikoresho bya Coarse.
Ubushakashatsi bujyanye no murugo no mumahanga yibanda cyane cyane kuri Mechanism na gahunda yicyuma gisya. Muri Mechanism yo gusya, gukuraho thermochemical no gukuraho imashini nibyiganwa byiganje, kandi byoroheje no gukuraho ibinanisha no gukuramo umunaniro ni bito. Mugihe usya, ukurikije imbaraga nubushyuhe bwo kurwanya ubushishozi bwa diyama, kuzamura imigenzo yo gusya, irinde gukuramo ibiramba byo gusya, kugirango ukureho umuvuduko no gukuraho ibinaniranye, kandi ugabanye ubuso bwa thermochemical, kandi ugabanye hejuru. Ubuso bwubuso bwo gusya buke, ariko byoroshye kubera ubushyuhe bukabije bwo gutunganya, gutwika ibikoresho,
Inzira yo gusya igomba kwitondera: ① Hitamo Blade Shode Ibipimo, birashobora gutuma umunwa mwiza mwiza cyane, imbere ninyuma yaka umuriro urangiza hejuru. Ariko, tekereza kandi imbaraga zo gusya, igihombo kinini, imikorere mirerure, igiciro kinini; ② Hitamo uburyo bwiza bwo gusya, harimo ubwoko bwa bunder, ubunini bwimibare, kwibanda, biryoha, bishobora kunoza ibikoresho byumye kandi bikaba byiza, intoki zisumba, mugihe zitezimbere ubuziranenge bwibikoresho.
Inzitizi zitandukanye zo gusya zifite ibiranga, nuburyo butandukanye bwo gusya. Resin Binder Uruziga rwa diyama ni rworoshye, Gusya Ibice Biroroshye Kureka imburagihe, Kutaterwa Ubushyuhe, Ubuso buraryozwa Icyuma gihuza ibiziga bya diyama bikomeza gusya gusya, gukurura ibintu byiza, kandi, ubukungu buke bwo gusya butera icyuho, kandi ubukungu buke bwo gusya butera icyuho, bigatera ibyangiritse cyane. Ceramic Bander Diamond Gusya Uruziga rufite imbaraga ziciriritse, imikorere myiza yo kwishima, ubushyuhe bwimbere, ubushyuhe buke, burashobora guhitana ubushyuhe butandukanye, busakuza buke, busaga buganisha ku gushinga ibibori hejuru. Koresha ukurikije ibikoresho byo gutunganya, byuzuye imikorere myiza, kurambanuka no kuramba no ubuziranenge bwumurimo.
Ubushakashatsi bwo gusya imikorere cyane yibanda cyane cyane kunoza umusaruro no kugenzura ibiciro. Mubisanzwe, gusya igipimo Q (Gukuraho PCD kuri buri gihe) no kwambara Ratio G (Ikigereranyo cya PCD gukuraho ibiziga) zikoreshwa nkibipimo ngenderwaho.
Intiti y'Ubudage Kenter Gusya igikoresho cya PCD hamwe nigitutu gihoraho, ikizamini: ① Yongera Umuvuduko Wihuta, Ingano ya PDC hamwe nubukonje bwa Coolant, Igipimo cyo Gusya no Kwambara Igipimo cyagabanutse; Yongera ubunini bwo gusya, byongera igitutu gihoraho, byongera diyama mu ruziga rwo gusya, igipimo gisya no kwambara umubare; Ubwoko bwa Binder buratandukanye, igipimo cyo gusya no kwambara igipimo kiratandukanye. Kenter inzira yo gusya yibikoresho bya PCD yize kuri gahunda, ariko ingaruka zinzira yo gusya ntabwo yasesenguwe kuri gahunda.
3. Koresha no Kunanirwa Ibikoresho bya PCD
(1) guhitamo ibikoresho byo gukata ibipimo
Mugihe cyambere cyigikoresho cya PCD, umunwa utyaye utyaye warashize, kandi ireme ryinshi ryabaye ryiza. Passivation irashobora gukuraho neza icyuho cya micro na burrs ntoya byazanywe nicyuma, kandi icyarimwe, kora radiyo izengurutse gukanda no gusana ubuso butunganijwe, bityo bikasana ubuso butunganijwe, bityo bikasana ubuso butunganijwe bwakazi.
PCD igikoresho cyo gusya aluminium, muri rusange muri rusange muri 4000m / min, gutunganya umwobo muri rusange muri 800m Kugaburira amajwi muri rusange birasabwa hagati ya 0.08-0.15mm / r. Kugaburira cyane amajwi, kongeramo imbaraga zo gukata, kwiyongera gusigaje muri geometrike yubuso bwakazi; Ubunini buke cyane, bwiyongereyeho gucibwa ubushyuhe, no kongera kwambara. Ubujyakuzimu bwiyongera, imbaraga zo gukata ziyongera, ubushyuhe bugabanya, ubuzima bugabanuka, ubujyakuzimu buke bukabije bushobora gutera icyuma byoroshye; Ubujyakuzimu buto buzaganisha ku gukomera, kwambara ndetse n'icyuma cyo gusenyuka.
(2) kwambara ifishi
Igikoresho cyo gutunganya ibikoresho, kubera guterana amagambo, ubushyuhe bwinshi nizindi mpamvu, kwambara byanze bikunze. Kwambara igikoresho cya diyama kigizwe nicyiciro bitatu: Icyiciro cya mbere cyambayeho (kizwi kandi nkicyiciro cyinzibacyuho), icyiciro gihamye hamwe nigipimo gihoraho, kandi icyiciro cya kabiri cyambawe. Icyiciro cyo kwambara byihuse cyerekana ko igikoresho kidakora kandi gisaba kugarura. Imyambarire yambara ibikoresho byo gutema ibikoresho birimo kwambara (gusudira ikonjesha), kwambara gukwirakwiza, kwambara ibintu, kwambara ibintu, kwambara ibitero, nibindi.
Bitandukanye nibikoresho gakondo, kwambara ibikoresho bya PCD nibikoresho byo kwambara, kwambara kwangwa na polycrystalline. Muri bo, ibyangiritse ku ruganda rwa Polycrystal nimpamvu nyamukuru, igaragara nkigihome cyoroshye cyangirika cyatewe ningaruka za PDC, zikabura icyuho cyangirika cyo hanze cyangwa igihombo cyangiritse kumubiri, gishobora kuganisha ku kugabanya ubushishozi no kugabanya ibikorwa. Ingano ya PCD, ifishi yumuriro, icyuma, ibikoresho byakazi nibikorwa byo gutunganya bizagira ingaruka kumfashanyo yicyuma no gukata imbaraga, hanyuma bigatera ibyangiritse kumurongo wa Polycrystal. Mumyitozo yubwubatsi, ingano ikwiye yibikoresho bifatika, ibikoresho byabigenewe nibipimo byo gutunganya bigomba gutorwa ukurikije imiterere yo gutunganya.
4. Iterambere ryibikoresho bya PCD
Kugeza ubu, porogaramu isaba igikoresho cya PCD yaguye kuva mu gace gakondo yo guhindukira, gusya, gukata kwihuta cyane, kandi yakoreshejwe cyane mu rugo no mu mahanga. Iterambere ryihuse ryibinyabiziga by'amashanyarazi ntabwo ryagize ingaruka gusa inganda zimodoka gakondo, ahubwo nazo zazanye ibibazo bitigeze bibaho ku nganda zibikoresho, zisaba inganda zabigenewe kwihutisha uburyo bwo guhitamo no guhanga udushya.
Gusaba ibibazo byinshi bya PCD byarushijeho gutera imbere no guteza imbere ubushakashatsi no guteza imbere ibikoresho byo gutema. Hamwe no kwimbitse ubushakashatsi, ibisobanuro bya PDC biragenda neza kandi bito, ingano imwe. Icyerekezo cy'ubushakashatsi cyibikoresho bya PCD harimo: ① Ubushakashatsi no Gutezimbere Igice cya PCD; ② gukora ubushakashatsi kandi bitezimbere ibikoresho bishya bya PCD; Ubushakashatsi bwo gusudira neza ibikoresho bya PCD kandi akomeza kugabanya ikiguzi; Ubushakashatsi buzamura ibikoresho bya PCD BLODE byo gusya kugirango bitezimbere imikorere; Ubushakashatsi bwerekana uburyohe bwibikoresho bya PCD kandi bikoresha ibikoresho ukurikije imiterere yaho; ⑥ Ubushakashatsi buhitamo guca ibipimo ukurikije ibikoresho byatunganijwe.
Incamake ngufi
. Muri icyo gihe, igiciro kiri munsi ya kiri kuri kirimbe cya karisilon imwe, mugukata bigezweho, ni igikoresho gitanga umusaruro;
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. Iyo gukora, kubyumva neza inzira ingorane no gutunganya ibikenewe, kugirango ugere kubikorwa byiza byagenwe;
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(5) Ubushakashatsi no guteza imbere ibikoresho bishya bya PCD kugirango batsinde ibibi byayo
Iyi ngingo ikomoka kuri "Umuyoboro wa superhard"
Igihe cya nyuma: Werurwe-25-2025
