Taƙaitaccen gabatarwar PDC drill bit
Ƙwararren lu'u-lu'u na polycrystalline (PDC) an yi shi tare da masu yankan lu'u-lu'u na roba a cikin ko dai ƙarfe ko kayan jikin matrix. PDC ɗin rawar sojan ya kawo sauyi ga masana'antar hakowa tare da fa'idar aikace-aikace mai fa'ida da yuwuwar ƙimar shiga (ROP).

PDC Bits an ƙera su kuma ana kera su kamar:

§Matrix-jiki bit

§Karfe-jiki ragowa

MATRIX-JIKI
Matrix wani abu ne mai wuya kuma mai karye wanda ya ƙunshi hatsin tungsten carbide na ƙarfe da aka haɗa tare da mai laushi, mai ƙarfi, mai ɗaure ƙarfe. Ya fi juriya fiye da karfe. An fi son su a cikin babban laka mai hakowa.

Amfani -
1. Matrix yana da kyawawa a matsayin ɗan abu sama da ƙarfe saboda taurinsa yana da juriya ga ƙura da yazawa.
2. Yana da ikon jure maɗaukakin kaya masu nauyi.
3. Don masu ciki na lu'u-lu'u, ginin matrix-jikin kawai za a iya amfani da shi.

Hasara-
1. Idan aka kwatanta da karfe, yana da ƙarancin juriya ga ɗaukar nauyi.
2. Ƙananan taurin tasirin matrix yana iyakance wasu fasalulluka-bit, kamar tsayin ruwa.

KARFE-JIKI
Karfe yana da ƙarfin ƙarfe da matrix. Ƙarfe na jiki an fi son gabaɗaya don sassauƙa mai laushi da mara lahani da girman rami babba. Don rage raguwar yazawar jiki, ragowa suna da wuyar fuska tare da abin rufe fuska wanda ya fi juriya da zaizayarwa kuma wani lokaci yana samun maganin hana buga ƙwallon ƙafa don sifofin dutse masu ɗanɗano kamar shales.

Amfani -
1. Karfe yana da ductile, mai tauri, kuma yana da ikon jure babban nauyin tasiri.
2. Yana da ikon jure babban nauyi mai tasiri, amma yana da ɗan laushi kuma, ba tare da fasalulluka masu kariya ba, da sauri zai gaza ta hanyar ƙazantawa da zaizayar ƙasa.
3. Saboda iyawar kayan ƙarfe, rikitattun bayanan bayanan bita da ƙirar ruwa mai yuwuwa kuma suna da sauƙin ginawa akan na'ura mai yawa, injin niƙa mai sarrafa lamba.

Hasara-
1. Jikin qarfe ba shi da juriya fiye da matrix kuma, saboda haka, ya fi saurin sawa ta hanyar zubar da ruwa.


PDC ragowa suna rawar jiki da farko ta hanyar shearing. Ƙarfin shigar da kai tsaye daga nauyin da aka yi amfani da shi akan bit da ƙarfin kwance daga tebur na juyi ana watsa shi cikin masu yankan. Ƙarfin da aka samu yana bayyana ma'anar jirgin sama don mai yankewa. Sa'an nan kuma ana yanke yankan a kusurwar farko dangane da jirgin sama, wanda ya dogara da ƙarfin dutse.

Faɗin kewayon aikace-aikacen raƙuman ruwa na PDC yana buƙatar fasaha na musamman na PDC don samun mafi yawan aikin hakowa a cikin kowace aikace-aikacen. Mafi kyawun abin yankan fayil zai haɓaka aiki a kowane ƙalubalen hakowa.

Tuntube mu awww.zzbetter.comdon ƙarin bayani game da abin yankan mu na PDC don rawar rawar PDC.