Ntugharị PDC nke taa dị ka matriks nwere obere myiri nke ọbụlagodi afọ ole na ole gara aga. Ike nkwụsi ike na nguzogide mmetụta abawanyela ma ọ dịkarịa ala 33%, na ike brazes abawanyela site na ≈80%. N'otu oge ahụ, geometrics na nkà na ụzụ nke ihe owuwu na-akwado emeziwanyela, na-eme ka ngwaahịa matriks siri ike ma na-arụpụta ihe.
Ihe cutters
A na-eme ndị na-egbutu PDC site na mkpụrụ osisi carbide na grit diamond. Okpomọkụ dị ihe dị ka ogo 2800 na nrụgide dị elu nke ihe dịka 1,000,000 psi na-etolite kọmpat. Otu cobalt alloy na-arụkwa ọrụ dị ka ihe na-akpali akpali maka usoro nsị. Cobalt na-enyere aka jikọta carbide na diamond.
Ọnụọgụ nke cutters
Anyị na-ejikarị ndị na-egbutu obere ihe na obere PDC ibe n'ibe dị ka onye ọ bụla cutter na-ewepụ omimi dị omimi nke ịkpụ. Maka nhazi siri ike, ọ dị mkpa iji ihe ndị ọzọ na-egbutu iji kwụọ ụgwọ maka obere omimi nke ịkpụ.
PDC Drill Bits - Nha ndị na-egbutu
Maka nhazi dị nro, anyị na-ahọrọkarị ndị na-egbutu osisi karịa n'ụdị siri ike. Na-emekarị, ọkọlọtọ nso nke nha si 8 mm na 19 mm na onye ọ bụla bit.
Anyị na-akọwakarị nghazi nhazi ihe nlegharị anya site na azụ rake na akụkụ rake akụkụ.
●The cutter azụ rake bụ n'akuku ewepụtara site ihu nke cutter ka e guzobere na tụrụ si vetikal. Akụkụ rake azụ dịgasị iche n'etiti, ọ na-adịkarị, 15° ruo 45°. Ha anaghị adịgide adịgide n'ofe ntakịrị, ma ọ bụ site na bit ruo bit. Ogo nke akụkụ rake cutter maka ihe nkuku PDC na-emetụta ọnụ ọgụgụ penetration (ROP) na nkwụsi ike iyi. Ka akụkụ rake na-abawanye, ROP na-ebelata, mana nguzogide iyi na-abawanye ka ibu etinyere na-agbasa ugbu a n'ogbe buru ibu. Ndị na-egbutu PDC nwere obere rake azụ na-ebipụ nnukwu omimi nke ya mere na-eme ihe ike karị, na-emepụta Torque dị elu, ma na-edobe iyi ngwa ngwa yana ihe ize ndụ dị ukwuu nke mmebi mmetụta.
●The cutter akụkụ rake bụ ihe hà nhata nghazi nke cutter si n'aka ekpe gaa n'aka nri. Akụkụ rake akụkụ na-adịkarị obere. Akụkụ rake dị n'akụkụ na-enyere aka ihicha oghere site n'iji igwe na-eduzi igbutu n'akụkụ annulus.
Oge nzipu: Ọgọst-10-2023