Ukulawulwa komgangatho wabasiki bePDC

Izisiki zePDC ziquka umaleko we-Polycrystalline Diamond kunye ne-carbide substrate. Abasiki bePDC bakwabizwa ngokuba ngabasiki bePolycrystalline Diamond Compact , eluhlobo lwemathiriyeli eqine kakhulu. Ukusetyenziswa kwe-polycrystalline diamond compact (PDC) abasiki basasazwa ngokubanzi kule mihla ngenxa yokusebenza kwabo okuphezulu kunye nokuqina kwiindawo ezinzima.

Izinto ezibaluleke kakhulu kubasiki bePDC kwi-oilfield drilling application zisemgangathweni kunye nokungaguquguquki. Ndiyakholelwa ukuba wonke umntu uya kuvuma. Kodwa njani ukulawula umgangatho?

Ukuqinisekisa ukuba yonke iqhekeza le-PDC cutter liyafika ZZNGCONOizandla zomthengi ezinomgangatho ophezulu, ZZNGCONOiye yaseka inkqubo engqongqo yolawulo lomgangatho, kuquka ulawulo lwempahla ekrwada, ulawulo lwenkqubo yokuvelisa, kunye nolawulo lweemveliso ezigqityiweyo. Umsebenzi wethu uqeqeshwe kakhulu kwaye uqeqeshekile kwaye uzinikele. Umsiki ngamnye wePDC wakhiwe kunye nabaqhubi abaqeqeshwe kakhulu kwaye uxinzelelo lulawulwa kwii-pressing ngexesha le-sintering.

Ulawulo lwekhwalithi yomsiki wePDC：

1. Impahla engekasilwa

2. Inkqubo yokuvelisa

3. Ukuhlolwa kweemveliso ezigqityiweyo

1. Ulawulo lwempahla ekrwada

1.1 Ukwenza isicelo sokomba i-PDC cutter oilfield sisebenzisa idayimane evela kumazwe angaphandle. Kwakhona kufuneka siyiqhekeze kwaye siyibumbe kwakhona, senze ubungakanani be-particle size ifanane. Kwakhona kufuneka sihlambulule izinto zedayimani.

1.2 Sisebenzisa iLaser Particle Size Analyzer ukuhlalutya ubungakanani besuntswana losasazo, ubumsulwa kunye nobukhulu bebhetshi nganye yomgubo wedayimani.

1.3 Kwi-tungsten carbide substrate sisebenzisa ibakala elifanelekileyo kunye nokuchasana kwempembelelo ephezulu.

2. Inkqubo yokuvelisa

2.1 Sinomsebenzi oqeqeshiweyo kunye neendawo eziphambili zokuvelisa ii-PDC cutters

2.2 Ngexesha lokuvelisa siya kujonga ukushisa kunye noxinzelelo ngexesha langempela kunye nokulungelelanisa ngexesha. Ubushushu buyi-1300 - 1500℃. Uxinzelelo yi-6 - 7 GPA. I-HTHP iyacofa.

Ukuvelisa iqhekeza elinye lePDC Cutters ziya kufuna malunga nemizuzu engama-30 iyonke.

Kwibhetshi nganye yabasiki bePDC, iqhekeza lokuqala libaluleke kakhulu. Ngaphambi kokuveliswa kobuninzi, siya kuhlola iqhekeza lokuqala ukuze sibone ukuba liyahlangabezana neemfuno zomthengi zomlinganiselo kunye nokusebenza.

3.Ukuhlolwa kweemveliso ezigqityiweyo

Ukuqinisekisa ukuba bonke abasiki bePDC bafanelekile kwaye bangaguquguquki, akufuneki silawule ngokungqongqo kuphela ukuhlolwa kwempahla ekrwada kunye nolawulo lokuqukuqela kwemveliso kunye nokuphuculwa kobuchule, kufuneka sizibophelele ekwakheni ilabhoratri enezixhobo zokuvavanya ezikumgangatho ophezulu ukuxelisa iimeko zokomba kwindawo yeoli kunye nokuvavanya abasiki bePDC kumzi-mveliso. ngaphambi kokuhambisa kubathengi bethu.

Kulawulo lwemveliso egqityiweyo siyakwenza ukusuka ngezantsi kwimiba:

Ubungakanani kunye nokuhlolwa kwembonakalo

Ukulawula iziphene zangaphakathi

Uvavanyo lokusebenza

3.1 Ubungakanani kunye nokuhlolwa kwenkangeleko:ububanzi, ukuphakama, ubukhulu bedayimani, i-chamfer, ubungakanani bejometri, i-crack, indawo emnyama, njl.

3.2 Ukulawula iziphene zangaphakathi

Ukulawulwa kwesiphako sangaphakathi siya kusebenzisa izixhobo zokuhlola ezikumgangatho ophezulu ze-ultrasonic C-san. Kubasiki be-PDC bafakwe ioyile kufuneka siskene zonke iziqwenga.

Ngenkqubo ye-C-scanning, i-ultrasonic wave inokungena kwi-PDC umaleko kwaye ibone i-delamination yayo okanye isiphene somgodi. Inkqubo yokuskena i-C inokufumanisa ubungakanani kunye nendawo yeziphene kwaye ibonise kwiscreen sePC. Kuya kuthatha malunga nemizuzu engama-20 ukwenza uhlolo ngexesha elinye.

3.3 Uvavanyo lwesampulu yentsebenzo yePDC Cutter:

nxiba ukumelana

ukumelana nefuthe

ukuzinza kwe-thermal.

3.3.1 Nxiba kuVavanyo loKuxhathisa:ngokulinganisa ukuba zingaphi iintsimbi ezilahlekileyo emva kokuba abasiki bePDC begawula igranite ngexesha elithile, sifumana umlinganiselo wokuguga. Yilahleko enkulu phakathi kwabasiki bePDC kunye negranite. Ukuphakama komlinganiselo, ukuxhathisa ngakumbi ukunxiba kwePDC Cutters kuya kuba.

3.3.2ImpembeleloUvavanyo lokuxhathisa:Sikwayibiza ngokuba yi-Drop-Weight test, usebenzisa i-lathe ethe nkqo kumphakamo othile ukubethelela kwiprofayili yokusika yePDC, ngokuqhelekileyo kunye neqondo elithile (i-15-25 degree) isilayidi. Ubunzima bale lathe ethe nkqo kunye nobude bayo obusetwe kwangaphambili buya kubonisa indlela ifuthe elixhathisa ngayo le PDC cutter.

3.3.3 Uvavanyo loZinzo lweThermal:Ijolise ekuvavanyeni ukuba ngaba abasiki bePDC bazinzile ngokwaneleyo phantsi kweemeko zokusebenza zobushushu obuphezulu. Kwibhubhoratri, sibeka ii-PDC cutters phantsi kwe-700-750℃kwimizuzu eyi-10-15 kwaye uhlole imeko yedayimani yomaleko emva kokupholisa kwendalo emoyeni. Ngokwesiqhelo le nkqubo iya kukhapha enye ukuxhathisa ukunxiba kunye nokumelana nempembelelo ukuthelekisa umgangatho wePDC umsiki ngaphambi kovavanyo nasemva kovavanyo.

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