Uhlalutyo olunzulu lweSicelo sePolycrystalline Diamond Compact (PDC) kwiShishini loKwakha

Abstract

Ishishini lokwakha lijongene nenguqu yetekhnoloji ngokwamkelwa kwezixhobo zokusika eziphambili ukuphucula ukusebenza kakuhle, ukuchaneka, kunye nokuqina ekusetyenzweni kwemathiriyeli. I-Polycrystalline Diamond Compact (PDC), kunye nobunzima bayo obukhethekileyo kunye nokuxhatshazwa kokugqoka, kuye kwavela njengesisombululo sokuguqulwa kwezicelo zokwakha. Eli phepha libonelela ngovavanyo olubanzi lweteknoloji yePDC kulwakhiwo, kubandakanywa iipropati zayo eziphathekayo, iinkqubo zokuvelisa, kunye nokusetyenziswa okutsha ekusikeni ikhonkrithi, ukugaya i-asphalt, ukugrumba amatye, kunye nokulungiswa kwebar yokuqinisa. Uphononongo lukwahlalutya imingeni ekhoyo ngoku ekuphunyezweni kwePDC kwaye luphonononga iintsingiselo zexesha elizayo ezinokuguqula ngakumbi ubuchwephesha bokwakha.

1. Intshayelelo

Ishishini lokwakha lehlabathi lijongene neemfuno ezikhulayo zokugqitywa kweprojekthi ngokukhawuleza, ukuchaneka okuphezulu, kunye nokunciphisa impembelelo yokusingqongileyo. Izixhobo zokusika zesiNtu zihlala zisilela ukuhlangabezana nezi mfuno, ngakumbi xa kusetyenzwa imathiriyeli yokwakha yale mihla yamandla aphezulu. Itekhnoloji yePolycrystalline Diamond Compact (PDC) iye yavela njengesisombululo somdlalo, inika ukusebenza okungazange kubonwe ngaphambili kwizicelo ezahlukeneyo zokwakha.

Izixhobo zePDC zidibanisa uluhlu lwedayimane ye-polycrystalline yokwenziwa kunye ne-tungsten carbide substrate, ukudala izinto zokusika ezidlula izinto eziqhelekileyo ngokubhekiselele kwisigxina kunye nokusebenza kakuhle kokusika. Eli phepha liphonononga iimpawu ezisisiseko zePDC, itekhnoloji yokuvelisa, kunye nendima yayo ekhulayo kwimisebenzi yangoku yokwakha. Uhlalutyo lubandakanya zombini usetyenziso lwangoku kunye nekamva elinokwenzeka, libonelela ngokuqonda malunga nendlela iteknoloji yePDC ehlaziya ngayo iindlela zokwakha.

2. IiPropati zeMathiriyeli kunye nokuVeliswa kwePDC ukulungiselela iZicelo zoKwakha

2.1 Iimpawu zeMathiriyeli eziZodwa

Ubulukhuni obukhethekileyo (10,000 HV) buvumela ukusetyenzwa kwemathiriyeli yokwakha egqabhukileyo

Ukuxhatshazwa okuphezulu kokugqoka kunika amaxesha angama-10-50 ixesha elide lobomi benkonzo kune-tungsten carbide

I-high conductivity ye-thermal** (500-2000 W/mK) inqanda ukushisa okugqithisileyo ngexesha lokusebenza okuqhubekayo

Ukuchasana kwempembelelo kwi-tungsten carbide substrate imelana neemeko zendawo yokwakha

2.2 UPhuculo lweNkqubo yokuVelisa kwiZixhobo zoKwakha**

Ukukhethwa kwamasuntswana edayimani: Igrit yedayimane ehlelwe ngobunono (2-50μm) ukuze isebenze ngokufanelekileyo

I-high-pressure sintering: i-5-7 ye-GPa yoxinzelelo kwi-1400-1600 ° C idala iibhondi zedayimane ezihlala ixesha elide.

Ubunjineli be-substrate: I-custom tungsten carbide formulations kwizicelo ezithile zokwakha

Ukubunjwa ngokuchanekileyo: I-Laser kunye ne-EDM yomatshini kwiijometri zesixhobo esinzima

2.3 AmaBanga ePDC awodwa oKwakha

Amanqanaba aphezulu okuxhathisa ukubetha kwekhonkrithi

Amabakala anempembelelo ephezulu yokusikwa kwekhonkrithi eqinisiweyo

Amabanga azinzileyo ngokwe-Thermally okugaya i-asphalt

Amanqaku afakwe kakuhle kwizicelo zolwakhiwo oluchanekileyo

3. Usetyenziso olungundoqo kuLwakhiwo lwangoku

3.1 Ukusika nokudilizwa kwekhonkrithi

Ukusarha ikhonkrithi enesantya esiphezulu: iincakuba zePDC zibonisa amaxesha ama-3-5 ubude bobomi kunamacangca aqhelekileyo

Iinkqubo zeesarha zocingo: Iintambo ezifakwe ngedayimani zokudilizwa kwekhonkrithi enkulu

Ukugaya ikhonkrithi echanekileyo: Ukufezekisa ukuchaneka kwe-sub-millimeter ekulungiseleleni umphezulu

Isifundo: Izixhobo zePDC ekuchithweni kweBay Bridge endala, eCalifornia

3.2 I-asphalt Milling kunye nokuvuselelwa kweNdlela

Oomatshini bokungqusha obubandayo: Amazinyo ePDC agcina ubukhali ngokutshintsha ngokupheleleyo

Ulawulo lwebakala elichanekileyo: Ukusebenza okuhambelanayo kwiimeko ze-asphalt eziguquguqukayo

Usetyenziso lokurisayikilisha: Ukusika okucocekileyo kweRAP (IBangi le-Asphalt Pavement)

Idatha yokusebenza: i-30% yokunciphisa ixesha lokugaya xa kuthelekiswa nezixhobo eziqhelekileyo

3.3 Ukugrunjwa nokuPyiliswa kweSiseko

Ukugrumba okunobubanzi obukhulu: Amasuntswana ePDC kwiimfumba ezikruqukileyo ukuya kutsho kwiimitha ezi-3 ububanzi

Ukungena kwelitye elilukhuni: Isebenza kwigranite, ibasalt, kunye nolunye ucelomngeni

Izixhobo zokujonga ngaphantsi: Ulwakhiwo oluchanekileyo lokukhupha intsimbi kwiziseko zemfumba

Usetyenziso lwe-Offshore: Izixhobo zePDC kufakelo lwesiseko se-injini yomoya

3.4 ULungiselelo lweBar yoQinisekiso

Ukusika i-rebar yesantya esiphezulu: Ukusikeka okucocekileyo ngaphandle kokuguqulwa

Ukuqengqeleka komsonto: I-PDC iyafa ngokuchaneka kwe-rebar

Ukuqhutyelwa ngokuzenzekelayo: Ukudibanisa kunye neenkqubo zokusika iirobhothi

Iinzuzo zokhuseleko: Ukuncitshiswa kokuveliswa kwentlantsi kwindawo enobungozi

3.5 UkuBoleka kwetonela kunye noKwakha ngaphantsi komhlaba

Iintloko zokusika ze-TBM: Abasiki bePDC kwiimeko zamatye athambileyo ukuya kobunzima obuphakathi

I-Microtunneling: Ukuchaneka kuyadika kufakelo oluluncedo

Ukuphuculwa komhlaba: Izixhobo zePDC zokugrumba ijethi kunye nokuxuba umhlaba

Uphononongo lwesifundo: Ukusebenza komsiki wePDC kwiprojekthi yaseLondon yeCrossrail

4. IiNzuzo zokuSebenza ngaphezu kweZixhobo eziqhelekileyo

4.1 IiNzuzo kuQoqosho

Ukongezwa kobomi besixhobo: amaxesha angama-5-10 ubude benkonzo kunezixhobo ze-carbide

Ukunciphisa ixesha lokuphumla: Iinguqu ezimbalwa zezixhobo zokwandisa ukusebenza kakuhle

Ukonga amandla: Amandla okusika asezantsi anciphisa ukusetyenziswa kwamandla nge-15-25%

4.2 UkuPhuculwa koMgangatho

Ukugqitywa komphezulu ongaphezulu: Isidingo esincitshisiweyo sokusetyenzwa kwesibini

Ukusika ngokuchanekileyo: Ukunyamezela ngaphakathi kwe-± 0.5mm kwizicelo eziphathekayo

Ukugcinwa kwezinto eziphathekayo: Ukunciphisa ilahleko yekerf kwizinto zokwakha ezixabisekileyo

4.3 Impembelelo yokusingqongileyo

Ukuncitshiswa kokuveliswa kwenkunkuma: Ubomi obude besixhobo buthetha ukuba bambalwa abasiki benkunkuma abalahliweyo

Amanqanaba engxolo asezantsi: Isenzo sokusika esithambileyo sinciphisa ungcoliseko lwengxolo

Ukucutha uthuli: Ukusikeka kwesicoci kuvelisa incindi encinci emoyeni

5. Imingeni yangoku kunye neMida

5.1 Imiqobo yobuGcisa

Ukuthotywa kwe-thermal kwizicelo eziqhubekayo zokusika ezomileyo

Uvakalelo lwempembelelo kwikhonkrithi eyomelezwe kakhulu

Ukulinganiselwa kobungakanani bezixhobo zedayamitha ezikhulu kakhulu

5.2 Imiba yezoQoqosho

Iindleko zokuqala eziphezulu xa kuthelekiswa nezixhobo eziqhelekileyo

Iimfuno zolondolozo olulodwa

Iinketho zokulungisa ezilinganiselweyo kwizinto ezonakalisiweyo zePDC

5.3 Imiqobo yokuKhusela kuShishino loMqobo

Ukuchasana nokutshintsha kwiindlela zemveli

Iimfuno zoqeqesho zokuphatha izixhobo ezifanelekileyo

Imingeni yonikezelo lwezixhobo ezikhethekileyo zePDC

6. IiNdlela zekamva kunye nezinto ezintsha

6.1 IMaterial Science Advancements

I-PDC eyakhiwe nge-Nano yokuqinisa ukuqina

IPDC ekumgangatho osebenzayo eneempawu eziphuculweyo

Ukwakheka kwePDC okuzilolayo

6.2 IiNkqubo zokuSebenza ngobuchule

Izixhobo zoluvo ezizinzisiweyo zokujonga ukunxiba

Iinkqubo zokusika eziguquguqukayo kunye nohlengahlengiso lwexesha langempela

Ulawulo lwesixhobo esinamandla e-AI ukwenzela ukutshintshwa kwangaphambili

6.3 Imveliso eZinzileyo

Iinkqubo zokuhlaziya izixhobo ezisetyenzisiweyo zePDC

Iindlela zokuvelisa amandla aphantsi

I-Bio-based catalysts ye-diamond synthesis

6.4 Imida yeSicelo emitsha

Izixhobo zenkxaso yoshicilelo lwekhonkrithi ye-3D

Iinkqubo zokudiliza iirobhothi ezizenzekelayo

izicelo zokwakha indawo

7. Isiphelo

Itekhnoloji yePDC iziseke njengeyona ndlela ibalulekileyo yobuchule bokwakha bale mihla, ibonelela ngentsebenzo engenakuthelekiswa nanto ekusetyenzweni kwekhonkrithi, ukugaya i-asphalt, umsebenzi wesiseko, kunye nezinye izicelo eziphambili. Ngelixa imicelimngeni ihleli kwiindleko nakwizicelo ezizodwa, inkqubela phambili eqhubekayo kwinzululwazi yezinto eziphathekayo kunye neenkqubo zezixhobo zithembisa ukwandisa ngakumbi indima yePDC kulwakhiwo. Eli shishini limi kumda wexesha elitsha kubuchwepheshe bokwakha, apho izixhobo zePDC ziya kudlala indima esembindini ekhulayo ekufezekiseni iimfuno zeendlela zokwakha ezikhawulezayo, ezicocekileyo nezichanekileyo.

Imikhomba-ndlela yophando lwexesha elizayo kufuneka igxininise ekunciphiseni iindleko zemveliso, ekwandiseni ukuxhathisa impembelelo, kunye nokuphuhlisa imiqulu yePDC ekhethekileyo yezixhobo zokwakha ezivelayo. Njengoko ezi nkqubela phambili zisenzeka, itekhnoloji yePDC ikulungele ukuba yimfuneko ngakumbi ekubumbeni indawo eyakhiweyo yenkulungwane yama-21.

Iimbekiselo

1. IMathiriyeli yoKwakha ngeZixhobo zeDayimane eziPhezulu (2023)

2. ITekhnoloji yePDC kwiiNdlela zanamhlanje zokudiliza (Ijenali yobuNjineli boKwakha)

3. Uhlahlelo lwezoQoqosho lwe-PDC Tool Adoption in Large-Scale Projects (2024)

4. Iinguqulelo zeSixhobo seDayimane kuLwakhiwo oluZinzileyo (iMathiriyeli namhlanje)

5. I-Case Studies kwi-PDC Isicelo seeProjekthi zeZiseko zoPhuhliso (ICON Press)