I. Kuvala kwamafuta ndi kuchotsa Cobalt ku PDC
M'makina oponderezedwa a PDC, cobalt amagwira ngati chothandizira kuti akweze kuphatikiza kwa diamondi ndi dangsten matchesi okwanira,
Kuzunza kwa diamondi Kulimbana ndi kochepa. Pansi pa kukakamizidwa kwa mlengalenga, mawonekedwe a diamondi amatha kusintha kutentha kuzungulira 900 ℃ kapena kupitilira. Mukamagwiritsa ntchito, ma PDC AMENE AMAPANGIRA ALI NDI 750 ℃. Mukamayenda zigawo zikuluzikulu komanso miyala, ma PDC akhoza kufikira kutentha kotero chifukwa chotentha kwambiri, ndipo kutentha kwapatali (kutanthauza kuti ndi malo okwera kwambiri a cobalt (1495 ° C).
Poyerekeza ndi diamondi yoyera, chifukwa cha kukhalapo kwa cobalt, ma diamondi otembenukira ku graphite kutentha kochepa. Zotsatira zake, kuvala diamondi kumachitika chifukwa cha kukomoka komwe kumapangitsa kutentha kwamatsenga. Kuphatikiza apo, kuwonjezeka kwa mafuta kwa cobal ndikokwera kwambiri kuposa diamondi, kotero pakutenthetsa, kulumikizana pakati pa miyala ya diamondi kumatha kusokonezedwa ndi kufalikira kwa cobabala.
Mu 1983, ofufuza awiri adachita chithandizo cha diamondi pamwamba pa zigawo za PDC Diamondi, ndikulimbikitsa kwambiri magwiridwe a mano a PDC. Komabe, kupangidwa kumeneku sikunalandire chidwi chomwe chimayenera. Zinakhala mpaka pambuyo pa 2000 izi, ndikumvetsetsa mwakuya kwa zigawo za PDC Diamondi, ogulitsa kubowola adayamba kugwiritsa ntchito ukadaulo wa PDC omwe amagwiritsidwa ntchito pamwala kubowola. Mano omwe amathandizidwa ndi njirayi ndioyenera mafomu owoneka bwino kwambiri ndi kuvala kwamakina kwa matenthedwe ndipo amatchedwa "mano obala.
The-wotchedwa "de-cobly" imapangidwa m'njira yachikhalidwe kuti ipange PDC, kenako pamwamba pake pama diamondi imamizidwa mu acid a ad kuti ichotse gawo la acid kudzera mwa acid. Kuzama kwa kuchotsa Cobalt kumatha kufikira 200 ma Microns.
Kuyesa kovuta kwambiri kunachitika pamano awiri ofanana pdc (imodzi yomwe idakonzekereratu mankhwala ochotsa diamondi pamwamba). Mukatha kudula 5000m ya Granite, idapezeka kuti kuvala PDC yopanda cobalt-yochotsedwapo idayamba kuchuluka. Mosiyana ndi izi, cobat-kuchotsedwa PDC idasunga liwiro lokhazikika podula pafupifupi 15000m of the Rock.
2. Njira ya PDC
Pali mitundu iwiri ya njira zopezera mano a PDC, kuyesedwa kowononga ndi kuyezetsa kowononga.
1. Kuyesa kowononga
Mayeso awa amapangidwira kuti azitha kuwongolera mikhalidwe yopanda tanthauzo momwe mungathere kuwunika magwiridwe antchito odula mano pansi pa mikhalidwe. Mitundu iwiri yayikulu ya kuyesedwa kowononga imavala mayeso oyeserera komanso mayeso ogwirizana.
(1) kuvala mayeso okana kukana
Mitundu itatu ya zida zimagwiritsidwa ntchito pochita ma pdc pokana:
A. Verical Lathe (vtl)
Pa mayeso, onetsetsani kuti pdc pang'ono ku vtl lathe ndikuyika chikondwerero (nthawi zambiri granite) pafupi ndi PDC pang'ono. Kenako pindani pathanthwe la thanthwe mozungulira lathere. PDC FILS imadumphira m'thanthwe ndi kuya pang'ono. Mukamagwiritsa ntchito Granite poyesa, kuya pang'ono uku nthawi zambiri kumakhala kochepa 1 mm. Kuyeza kumeneku kumatha kuwuma kapena kunyowa. "Kuyesa kwa Vtl Vtl," pamene PDC ikadula mwala, palibe chozizira chomwe chimayikidwa; Kutentha konse kwamphamvu komwe kumapangidwa kumalowa pdc, ndikukulitsa njira yolumikizira diamondi. Njira yoyeserayi imapereka zotsatira zabwino kwambiri mukamaona ma bits a PDC pansi pazomwe zimafuna kuthamanga kwambiri kapena kuthamanga kwamphamvu.
Kuyesa kwa Vtl "kumazindikira moyo wa PDC pansi pa zotumphukira pang'ono pozizira mano a PDC ndi madzi kapena mpweya pakuyesa. Chifukwa chake, mavalidwe akuluakulu a mayeso awa ndikupera kwa chimbudzi osati chofunda.
B, lopingasa la lathe
Kuyesedwa uku kumachitikanso ndi Granite, ndipo mfundo ya mayeso ndiyofanana ndi Vtl. Nthawi yoyesererayo ndi mphindi zochepa chabe, ndipo kugwedeza kwamafuta pakati pa granite ndi pdc ndi ochepa.
Magawo oyeserera a Granite omwe amagwiritsidwa ntchito ndi ogulitsa a PDC Giar amasiyanasiyana. Mwachitsanzo, magawo oyeserera omwe amagwiritsidwa ntchito ndi kampani yopanga ndi dina ku United States sichofanana kwenikweni, koma amagwiritsa ntchito zida zofananira chifukwa cha zoyeserera zawo.
C. Abrasion Ratio Vorice Chida
Pansi pa mikhalidwe, diamondi wosanjikiza wa PDC imagwiritsidwa ntchito kutsika inicon carbider carbideng carter, ndi chiwerengero cha magudumu opera, chomwe chimatchedwa chovala cha PDC.
(2) Mayeso ogwirizana
Njira yoyeserera yoyeserera imaphatikizapo kukhazikitsa mano a PDC panjira ya madigiri 15-25 kenako ndikugwetsa chinthu kuchokera kutalika kwa diamondi mano. Kulemera ndi kutalika kwa chinthu chakugwa akuwonetsa kuchuluka kwa mphamvu zomwe zimachitika chifukwa cha dzino loyesa, lomwe limatha kuwonjezeka pang'ono mpaka 100 Juoules. Dzino lirilonse limatha kugwidwa ndi nthawi 3-7 mpaka sichingayesedwenso. Nthawi zambiri, zitsanzo zosachepera 10 za dzino lililonse zimayesedwa pamagetsi aliwonse. Popeza pali mitundu yosiyanasiyana pakukana mano pazomwe zimakhudza, zotsatira zake zimakhala ndi mphamvu iliyonse ndi malo ambiri a diamondi ya diamondi pambuyo pochotsa dzino lililonse.
2. Kuyesa kowononga
Njira yogwiritsiridwa ntchito kwambiri (yopanda mawonekedwe owoneka bwino ndi ma microscopic) ndi mawonekedwe aku akupanga (CSCAN).
Tekinoloji ya CSCKING imatha kudziwa zilema zazing'ono ndikuzindikira malowo ndi kukula kwa zilema. Mukamachita izi, koyamba ikani dzino la PDC mu thanki yamadzi, kenako jambulani ndi kafukufuku aku akupanga;
Nkhaniyi idalembedwa kuchokera "Padziko Lonse Padziko Lonse"
Post Nthawi: Mar-21-2025
