PCD chishandiso chakagadzirwa nePolycrystalline Diamond banga banga uye carbide matrix kuburikidza nekudziya kwakanyanya uye nekumanikidza kwakanyanya kuchinjisa. Izvo hazvigone chete kutamba zvizere kune zvakanakira kuomarara kwakakwirira, kukwirira kwakanyanya kuderera, kushamwaridzana kwesimbi, hapana chakavanzika
Kugadzikana kwekunyora, kukanganisa kuomarara uye kupfeka kurwisa ndiyo hurukuro huru yePCD. Nekuti inonyanya kushandiswa mukudziya kwakanyanya uye yakakwirira yekushungurudzika nharaunda, kugadzikana kwekunyora ndicho chinhu chakakosha. Chidzidzo ichi chinoratidza kuti kugadzikana kwekupisa kwePCD kunokanganisa kupfeka kwaro nekukanganisa kuomarara. Iyo data inoratidza kuti kana tembiricha yakakwira kupfuura 750 ℃, kupfeka kupokana uye kukanganisa kuomarara kwePCD kazhinji kuderera ne5% -10%.
Iyo Crystal mamiriro ePCD inosarudza zvivakwa zvaro. Mu microctionure, kabhoni maatomu inoumba zvisungo zvinobatanidza nemaatomu mana akaiswa, awane tetrahedral chimiro, uye ikaita tsika yakasimba uye simba rekusunga, uye kuomarara kwakasimba. Iyo huru yekuita Indexes yePCD iri seinotevera: ① Kuoma kunogona kusvika 8000 HV, nguva 8-12 yenguva yemabhoni; 【 ③ Friction coefficient inowanzo kungoita 0.1-0.3, zvakawandisa kupfuura 0.4-1 yekongiri, zvakanyanya kuderedza simba rekucheka; ④ Kuwedzera kwekuwedzera kunobatanidza chete ingori 0.9x10-6-1.18x10-6 / 5 yekadzi, iyo inogona kuderedza kupinza deformation uye kuvandudza kugadzirisa chokwadi; ⑤ uye isina-messactic zvinhu hazvina kusarudzika kuti vagadzire madhiri.
Cubic Boron Nitride ine yakasimba oxidation kuramba uye inogona kuitisa zvigadzirwa zvine mwero, asi kuomarara kwakadzika pane imwe chete madhaimani, kumhanya kwekugadzirisa kunononoka uye nekubudirira kwakaderera. Iyo imwe yekristani yekristani ine kuomarara kwakanyanya, asi kuoma hakuna kukwana. Anisotropy inoita kuti zvive nyore kuperevedza pamwe (111) pamusoro pekukanganisa kwekunze, uye kushanda kwekugadzirisa kwakapera. PCD ndeye polymer yakakwenenzverwa ne micron-sized diamond zvikamu nezvimwe nzira. Chikanganiso chechisimba chekuunganidzwa kwezvidimbu zvinotungamira kumacroscopic istoc Kuenzaniswa neyakajairwa-crystal digiramu, muganho wezviyo wePCD zvinobudirira anoderedza anisotropy uye anogadzirisa michina yemuchina.
1. Dhizaini nheyo dzePCD kucheka zvishandiso
(1) Kusarudzwa zvine musoro kwePCD zvikamu
Zvinonzwisisika, PCD inofanira kuedza kunatsa zviyo, uye kugoverwa kwekuwedzera pakati pezvigadzirwa kunofanirwa kunge kwakafanana neyunifomu sezvinobvira kukurira anisotropy. Sarudzo yePCD zvikamu zviyero zvakare zvine chekuita nemamiriro ekugadzirisa. Kazhinji, PCD ine simba rakanyanya, kupokana kwakanaka, kupokana kwakanaka uye zviyo zvakanaka zvinogona kushandiswa kupedzisa kana kupedzisa kupedzisa zviyo zvezviyo zvine coars. Iyo PCD yePCLELE Saizi inogona kukanganisa zvakanyanya kupfeka kwekushandisa kwechishandiso. Mabhuku akakodzera anonongedzera kuti kana zviyo zvezviyo zvakakura zvakakura, kupfeka kwakakura kuri kuita zvishoma nezvishoma nekuderera kwehukuru hwezviyo, asi kana saizi yeiyo yeiyo chidiki idiki, mutemo uyu haushande.
Kuedza kwakabatana kwakasarudzwa mana madhaimani ine avhareji saizi ye 10m, 5um, 2um uye yakagumiswa kuti: Nekuderera kwe ②, kupfeka kupokana uye kupisa kupokana kwePCD zvishoma nezvishoma kuderera.
(2) kusarudza zvine musoro kweiyo blade muromo fomu uye blade gobvu
Chimiro cheblde muromo unonyanya kusanganisira zvivakwa zvina: Chimiro chakapinza chekupinza chinoita kuti mupendero wakapinza, kumhanya kwekutsanya, kunogona kuderedza simba rekucheka, rakaenzana nesimbi aluminium Aloy Chimiro chechipfu chekutenderera chinogona kupfuudza blade muromo, kuumba r kukona, zvinobudirira kudzivirira blade kutyora, zvakakodzera kugadzirisa pakati / yakakwira silicon aluminium alloy. Mune zvimwe zviitiko zvakakosha, zvakadai sekucheka zvisina kufanira kudzika uye diki banga kudyara, iyo yakashata kutenderera chimiro inosarudzwa. Chimiro chakaverengeka chemupendero chinogona kuwedzera mipendero nemakona, asi panguva imwecheteyo ichawedzera kudzvinyirira uye nekucheka kurwisa, kutakura mutoro unorema silicon aluminium aluminium Alloy.
Kuti uderedze edm, kazhinji sarudza iyo yakaonda PDC sheet layer (0.3-1.0mm), pamwe neyakagwinya carbide, iyo ibless yakazara yechishandiso ndeye 28mm. Iyo kabhuku kabhokisi haifanire kunge yakanyanya kukwikwidza kudzivisa kufungidzirwa kwakakonzerwa nekusiyana kwekushushikana pakati pekusungwa kwemasangano
2, PCD Tool Kugadzira Process
Iyo yekugadzira maitiro yePCD mudziyo zvakananga inosarudza kucheka maitiro uye hupenyu hwebasa hwechishandiso, chinova kiyi yekushandisa kwayo uye kukura kwayo. Maitiro ekugadzira yePCD chishandiso chinoratidzwa mumufananidzo 5.
(1) Kugadzira yePCD composite mahwendefa (PDC)
① Kuwana maitiro ePdc
PDC inowanzoumbwa neyakasikwa kana synthetic diamondi poda uye kusunga mumiririri pakupisa kwakanyanya (1000-2000 ℃) uye yakanyanya kudzvinyirira (5-10 ATM). Iyo inosungirwa mumiririri anoumba bhiriji rekusunga neiti, sic, fe, si, et, crystal yakamiswa mumabhiriji ekusunga ari muchimiro checompar. PDC inowanzogadzirwa mumidziyo ine diamita yakagadziriswa uye kukora, uye kugeda uye kupukutwa uye kumwe kurapwa kwemuviri uye kwemakemikari. Mukukosha, chimiro chakakodzera chePCC chinofanira kuchengetedza hunhu hwakanakisa hwemuviri wekristani yekristani zvakanyanya sezvinobvira, zvakazoitika mumuviri zvinokwanisika, panguva imwe chete, iyo yechibharo DD musanganiswa zvakanyanya sezvinobvira,
② Kugadziriswa uye kusarudzwa kweBinders
Iyo binder ndiyo yakakosha chinhu chinokanganisa kugadzikana kweiyo yePCD chishandiso, icho chinobata zvakananga kuomarara, kupfeka kurwisa uye kugadzikana kwekunyora. Zvakajairika PCD Kubatanidza nzira dziri: Iron, cobalt, nickel uye zvimwe zvinoshandurwa simbi. Co uye w yakasanganiswa powder yakashandiswa seyekubatira mumiririri, uye kuita kwakazara kwekutadza PCD kwaive kwakanyanya apo iyo Synthesis kudzvinyirira yaive 5.5 GPA, tembiricha yekushomeka yaive 1450 Sic, tic, wc, tib2, uye zvimwe zvigadzirwa zveCeramic. SIC iyo yekudzikisira kugadzikana kweSIC iri nani pane iyo yeCO, asi kuomarara uye kupwanyika kuomarara kwakaderera. Kuderedzwa kwakakodzera kwehukuru hwekuita zvinhu kunogona kugadzirisa kuomarara uye kuomarara kwePCD. Hapana chinonamatira, ne graphite kana imwe carbon zvinyorwa mune ultra-yakakwira tembiricha uye yakanyanya kudzvinyirira inopiswa muNanoscale polymer (NPD). Kushandisa graphite sepamberi kugadzirira NPD ndiyo inonyanya kudiwa mamiriro, asi iyo synthetic npd ine kuomarara kwakanyanya uye zvakanakisa michina.
Kusarudzwa uye kutonga kwe ③ ③ ③ ③ ③
Iyo RAW OFLY DIAMOND POWDER Icho chinhu chakakosha chinokanganisa kuita kwePCD. Kufunga nezve madhiri madiki madressura, kuwedzera huwandu hushoma hwezvinhu zvinotadzisa kuwanda kwedhaimani madhaimani ekukura uye kusarudzwa zvine musoro kwekudzikisira kunogona kukanganisa kukura kwemadhaimani madhaimani.
Yakakwira yakachena npd ine yunifomu chimiro inogona kunyatso bvisa iyo anisotropy uye nekuenderera mberi nekugadzirisa michina. Iyo nanographite precursor poda yakagadzirirwa nzira yakakwirira yekugezesa yaishandiswa kugadzirisa mamiriro eokisiya ari pasi pegumi neshanu
④ Kunonoka kwemakemikari kurapwa
Kumba kumwechete (200 ° ℃) uye nguva (20h), iyo cobalt yekubvisa yeLewis acid-fell3 yaive yakanaka kwazvo kupfuura iyo yemvura, uye yakajeka yeHCL yaive 10-15g / 100ml. Iyo yekudzikama yekukasira yePCD inovandudza sezvo iyo cobalt kubvisa kudzika kwakadzika kunowedzera. Zvekukura-gweta kukura PCD, kurapa kwakasimba kwaidhi kunogona kubvisa zvachose co, asi ine pesvedzero huru pane polymer. Kuwedzera tic uye wc kuti ndichinje iyo synthetic polycrystal chimiro uye kusanganisa neine yakasimba acid kurapa kugadzirisa kusimba kwePCD. Parizvino, maitiro ekugadzirira ePCD zvinovandudza, kuoma kwechigadzirwa kwakanaka, iyo Anisotropy yakavandudzwa kwazvo, yakaziva kugadzirwa kwekutengesa, maindasitiri ane hukama ari kukurumidza kukurumidza.
(2) Kugadziriswa kwePCD blade
① Kucheka maitiro
PCD ine kuomarara kwakakwirira, zvakanaka kupfeka kurwisa uye kwakanyanya kuoma kwekucheka maitiro.
② Welding maitiro
PDC uye banga remuviri nemuchina nemuchina, kusungwa uye kurwadzisa. Kushambadzira ndekwekudzvanya PDC pane Carbide Matrix, Kusanganisa Kurova, High Frequency Inting Kurova, Iyo Welding mhando inoenderana neye flux, inotsvedza alloy uye tembiricha tembiricha. Tembiricha yekupisa (kazhinji yakaderera kupfuura 700 ° °) ine maitiro akawandisa, tembiricha yakanyanya kunaka, iri nyore kupisa mari, uye yakanyanya kukanganisa, uye tembiricha yakanyanya kuderera ichatungamira kune isina kukwana simba resimba. Iyo tembiricha inopisa inogona kudzorwa nenguva yekunzwa uye kudzika kwePCD kutsvuka.
③ Blade kugedaira maitiro
PCD Tool Kugaya maitiro ndiyo kiyi yekugadzira maitiro. Kazhinji, kukosha kwepamusoro kwebanga uye banga riri mukati me5m, uye arc radius zviri mukati megumi nenomwe; kumberi nekumashure kwekucheka pamusoro pekupedza kumwe kupedzisa, uye kunyange kuderedza kutemwa kwekutenderera kwe0,1
Blade Gyinding maitiro anosanganisira madhaimani ekukuya vhiri mechenicy mechenicy yekukuya, Edg), meth), simbi), esimbi Pakati pavo, madhaimani ekukuya vhiri mechaniki blade kuchera ndiye akanyanya kukura, anoshandiswa zvakanyanya.
Zvinoenderana neKutarwa: Saizi yeiyo ② yekuchera vhiri iri kunetsa kune iyo blade yemhando yekasati yekisimusi kana Ultrafine chikamu chePCD zvishandiso, asi zvishoma mhedzisiro paCoarse Chikamu PCD zvishandiso.
Kutsvaga kwakabatana pamba uye kunze kwenyika kunonyanya kutarisisa muchimiro uye maitiro eblade kugeda. Mublad ichikuya michina, iyo thermichemical kubviswa uye yekubvisa inobvisa ndiyo yakakurumbira, uye yebhururu kubvisa uye kupera simba kubvisa zvishoma. Paunenge uchikuya, zvichienderana nesimba uye kupisa kupokana neyekuchinjisa madhaimendi ekunwisa mavhiri ekukuvara, funga kubvisa uye kunatsiridza chikamu cheTermotical kubviswa, uye kuderedza mamiriro ekunze. Iyo nzvimbo yekunhuhwirira kwekunaka kwekufa kwakaderera, asi nyore nekuda kwekudziya kwakanyanya kupisa, kupisa chishandiso,
Blade kugeda maitiro anofanirwa kutarisisa kune: Nekudaro, zvakare funga nezve yakakwira simba rekunyevera, kurasikirwa kukuru, kusakwana kwekunyanyisa, mutengo wakanyanya; Sarudza zvine musoro kugeza vhiri mhando, kusanganisira binder mhando, sizele size, kusunganidzwa, kuchema-chema-chando, kupunzika kwekona yekukona
Kusungwa kwakasiyana-siyana madhaimani ekukuya vhiri ane hunhu hwakasiyana, uye dzakasiyana kuchera michina uye maitiro. Resin Binder Diamond jecha ravhiri remagetsi rakapfava, dzichigeza zviri nyore kuwira pasi, kusavapo kwekushisa, pasi rinodzikiswa nekumisa, kuputika kwekunzwa kupfeka mavara, hombe roughness; Metal Binder Diamond Kukundwa Wheji kunopinza nekukuya kupwanya, kusimuka, kugona kwekuchema kwekunzwa, uye nekucheka kwakanyanyisa kusiya mukana wekukanganisa, zvichikonzera kukuvara kwakakomba maronda; Ceramic Binder Diamond Kukuya Kwekukuya Kwekukuvara pamusoro. Shandisa zvinoenderana nezvinhu zvekugadzirisa, zvakazara nekucheka zvinobudirira, kusimba kwekusimba uye chimiro chemukati chebasa rekushanda.
Tsvagurudzo pakukwevera kwekunyepedzera inonyanya kutarisisa pane kugadzirisa kubereka uye kudzora mutengo. Kazhinji, kugeza rate Q (PCD kubviswa payuniti nguva) uye kupfeka ratio g (ratio yePCD kubviswa kukudza vhiri) inoshandiswa sekuongorora maitiro.
Schol Scholar Kenter Genting PCD chishandiso neyekudzvinyirira, bvunzo: ① inowedzera kugezesa vhiri, saizi yePCC Inowedzera saizi yekukuya, inowedzera kudzvanywa, inowedzera kushushikana kwedhaimani mune vhiri vhiri, vachikuya uye vanopfeka zviyero; ③ Binder mhando yakasiyana, iyo yekukuya uye kupfeka ratio zvakasiyana. Kenter iyo blade ichikuya maitiro ePCD chishandiso chakadzidzwa zvakarongeka, asi pesvedzero yeblade yekugeza maitiro haina kuongororwa zvakarongeka.
3. Shandisa uye kutadza kwePCD kucheka zvishandiso
(1) kusarudzwa kwechishandiso kucheka paramita
Munguva yekutanga yePCD chishandiso, muromo wakapinza unopfuura zvishoma nezvishoma, uye chimiro chemachina chakave nani. Passivation inogona kunyatso bvisa iyo Micro GAP uye Burder Burde Kuchera, Kuvandudza iyo Pasi Remusoro wekucheka, uye kuumba iyo radius squeise uye kugadzirisa iyo yakagadziriswa nzvimbo, nekudaro ichivandudza chimiro chebasa.
PCD Tool pamusoro Kukura Aluminium Acuminum Logume ivorumu inowanzo kukurudzirwa pakati pe0.08-0.15mm / r. Yakanyanya kuwanda yekupa vhoriyamu, inowedzera kucheka simba, yakawedzera yakasara geometric nzvimbo yeiyo basa rekushanda; Kunyanya kudhara vhoriyamu, kupisa kunopisa kupisa, uye kuwedzera kupfeka. Kudzika kwakadzika kwekuwedzera, simba rekucheka rinowedzera, kupisa kupisa kunowedzera, hupenyu hunoderera, kutema kudzika kunogona kukonzera kuputika blade kudonha; Diki yekucheka kudzika ichaunza kumachina kuomesa, kupfeka uye kunyange blade kudonha.
(2) pfeka fomu
Tool kugadzirisa basa rekushanda, nekuda kwekukakavara, kupisa kwakanyanya nezvimwe zvikonzero, kupfeka hazvigoneke. Kupfeka kwechishandiso chemadhaimani kune zvikamu zvitatu: Chekutanga pfeka chikamu (chinozivikanwa seichinjisa chikamu), iyo yakachinjika chiputi ine nguva yekupfeka, uye inotevera nekukurumidza kupfeka pfeka chikamu. Chikamu chekurumidza kupfeka chinoratidza kuti chishandiso hachisi kushanda uye chinoda kudedera. Mhando dzekupfeka dzekucheka zvishandiso zvinosanganisira chinonamatira kupfeka (kutonhora Welding pfeka), kusiyana kwekupfeka, kupfeka kupfeka, oxidation kupfeka, nezvimwe.
Yakasiyana neyechinyakare zvishandiso, iyo yekupfeka yemitambo yePCD zvishandiso zvekupfeka, kusiyana nekupfeka uye polycrystalline yekukuvara. Pakati pavo, kukuvara kwePolycrystal layer chikonzero chikuru, icho chinoratidzwa seyekunyura banga rakakonzerwa nePCC, iyo yekunongedza yekukuvara kwemukati, iyo inogona kutungamira mukudzikisira kwekugadzirisa kwekugadzirisa uye kupururudza kwemabasa ebasa. PCD Partle Saizi, Blade fomu, Blade Akona, Yekushanda Kwekumusoro uye kugadzirisa mapaundi anozokanganisa blade blade uye kucheka simba, uye ipapo kukonzera kukuvara kweiyo polycrystal layer. Muchiinjiniya maitiro, iyo yakakodzera mbichana yezvinhu size size, maratidziro emidziyo uye ma parmeter ekugadzirisa anofanira kusarudzwa zvichienderana nemamiriro ekugadzirisa.
4. Kubudirira maitiro ePCD kuchema zvishandiso
Parizvino, iyo yekushandisa renji yePCD mudziyo yakawedzerwa kubva kune yechinyakare inotendeukira kuyerera, kugaya, kucheka kwakanyanya, uye kwakashandiswa pamba uye kune dzimwe nyika. Iko kukurumidza kukura kwemotokari dzemagetsi hakuna kungounza tsika yemotokari yemotokari, asi zvakare yakauya nematambudziko asina kumbobvira kuindisitiri yekubatsira, kukurudzira indasitiri yekubatsira kuti ukure kuongororwa uye kurira.
Iyo yakasindimara yekushandisa PCD kucheka zvishandiso zvakadzika uye zvinosimudzira kutsvagisa nekuvandudza maturusi ekucheka. Nekunyepedzera kwekutsvagisa, tsanangudzo dzePCC iri kuderera uye zvidiki, zviyo zvinyangamire kugadzirisa, kufanana kwekuita, kugeza chiyero uye kupfeka chiyero chakakwira uye chakakwira, chimiro uye chimiro uye chimiro chemaitiro. Mafambiro ekutsvagisa ePCD zvishandiso zvinosanganisira: ① Tsvagiridzo uye Uve Nekuvandudza PCD Layer; ② Tsvagiridzo uye inovandudza itsva PCD zvishandiso zvekushandisa; ③ Tsvagiridzo yekutsvaga zvirinani PCD zvishandiso uye kuenderera mberi kuderedza mutengo; ④ Tsvagurudzo inovandudza PCD mudziyo blade kuchera maitiro ekuvandudza kushanda zvakanaka; ⑤ Tsva Tsvagiro Inogadzirisa PCD TOLATO TOCAMEERS uye inoshandisa maturusi zvichienderana nemamiriro emuno; ⑥ Tsvagiridzo inotsvaga inosarudza kucheka paramita zvichienderana nezvinhu zvakagadziriswa.
pfupiso pfupi
. Panguva imwecheteyo, mutengo wakadzika kwazvo kupfuura imwe yekristani yedhodhi chishandiso, mukucheka zvazvino, chishandiso chinovimbisa;
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. Kana kugadzirwa, kusanzwisisana nekufunga nezve maitiro ekugadzirisa uye kugadzirisa zvinodiwa, kuitira kuti uwane mutengo wakanakisa wekuita;
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Chinyorwa ichi chinotangiswa kubva ku "Superhard Pfungwa Network"
Kutumira Nguva: Mar-25-2025
