Pob zeb drilling cov cuab yeej ua haujlwm nyob rau hauv cov xwm txheej ntawm kev cuam tshuam loj, kev puas tsuaj siab, thiab cov txheej txheem geological nyuaj. Kev xaiv ntawm cov ntaub ntawv ncaj qha cuam tshuam rau pob zeb- kev ua haujlwm tawg, ua haujlwm ntev, thiab kev nyab xeeb ntawm kev tsim kho. Kev xaiv cov khoom siv suab zoo tsis tsuas yog txhim kho kev khiav hauj lwm ceev tab sis kuj txo qis kev siv hluav taws xob thiab cov nqi kho mob, ua rau nws yog ib qho tseem ceeb ntawm cov cuab yeej tsim thiab kev tsim khoom.
Ua ntej, cov khoom siv ntawm lub cev thiab cov khoom txav mus los yuav tsum muaj lub zog zoo heev thiab muaj zog toughness. Lub ntsiab ncej thiab cov qauv sib kis feem ntau siv siab - lub zog alloy cov qauv hlau, tempered lossis nto- tawv tawv kom tiv taus kev cuam tshuam ntau zaus thiab khoov kev ntxhov siab. Rau pneumatic los yog hydraulically tsav actuators, sab hauv pistons, txuas rods, thiab lwm yam yuav tsum tau ua los ntawm steel nrog ob lub siab qaug zog lub zog thiab zoo machinability los xyuas kom meej tias cov tawg thiab deformation tsis yooj yim generated thaum lub sij hawm siab - zaus reciprocating motion.
Lub laum me ntsis yog cov ntsiab lus tseem ceeb uas ncaj qha hu rau pob zeb loj; nws cov khoom yuav tsum tau ua raws li qhov yuav tsum tau muaj siab hardness, zoo heev hnav tsis kam, thiab txaus toughness. Lub laum pas nrig feem ntau yog ua los ntawm high- zoo alloy steel, tshav kub- kho kom tau txais lub zog tensile siab thiab torsional tsis kam tiv thaiv torque cuam tshuam thiab khoov qaug zog. Qhov kawg ua hauj lwm ntawm lub laum me ntsis feem ntau ntiav ib tug daws ntawm inlaid cemented carbide hniav. Cemented carbide, nrog tungsten carbide raws li nws cov matrix, muaj siab hardness, hnav tsis kam, thiab siab -kub tsis kam, tuav ib tug ntse txiav ntug thaum lub sij hawm siab - ceev txiav thiab cuam tshuam pob zeb tawg, ua rau nws lub neej kev pab cuam. Nyob rau hauv cov pob zeb tsis tshua muaj zog los yog cov txheej txheem abrasive heev, cemented carbide nrog cobalt ntxiv -raws li cov kauj ruam los yog cov khoom siv qib siab tuaj yeem raug xaiv los txhim kho kev tiv thaiv kev cuam tshuam.
Rau kev ua haujlwm sib txawv, xaiv cov khoom siv yuav tsum xav txog kev tiv thaiv corrosion thiab thermal stability. Hauv dej-cov kabmob, cov kua qaub ntxhia- muaj cov pob zeb tsim los yog cov haujlwm ntub dej, lub laum me me thiab lub cev yuav tsum zoo dua yog ua los ntawm cov alloys uas muaj xeb zoo los yog tau txais kev tiv thaiv saum npoo xws li plating, nitriding, lossis ceramic spraying los tiv thaiv corrosion ntawm lub zog thiab qhov tseeb. High- qhov kub thiab txias ib puag ncig los yog txuas ntxiv siab - kev siv zog tuaj yeem ua rau qhov kub thiab txias ntawm qhov chaw sib cuag. Nyob rau hauv tas li ntawd, cov ntaub ntawv uas muaj thermal conductivity zoo thiab siab siab -kub hardness retention yuav tsum tau xaiv kom tsis txhob ceev hnav vim thermal softening.
Tsis tas li ntawd, kev xaiv cov khoom siv yuav tsum sib haum nrog cov txheej txheem tsim khoom. High-hardness alloys nyuaj rau tshuab, yuav tsum tau precision forming thiab vuam cov tswv yim los xyuas kom meej lub zog sib txuas ntawm cov cemented carbide thiab steel lub cev, tiv thaiv detachment thaum siv. Rau cov khoom siv thiab cov pas nrig hloov tau hloov tau, cov khoom siv tau zoo thiab cov kev kho cua sov tshwj xeeb txhim kho kev sib hloov thiab kev saib xyuas kom zoo.
Feem ntau, kev xaiv cov khoom siv rau pob zeb drilling cov cuab yeej yuav tsum ua tib zoo xav txog lub zog, hardness, toughness, hnav tsis kam, corrosion kuj, thiab thermal stability, thaum tseem muaj kev koom tes nrog cov pob zeb hom, ib puag ncig ua haujlwm, thiab cov txheej txheem tsim khoom. Tsuas yog cov cuab yeej raws li kev xaiv cov khoom siv tshawb fawb tuaj yeem tswj tau cov pob zeb tawg tau zoo thiab ntev - lub sijhawm ua haujlwm tau zoo nyob rau hauv cov xwm txheej hnyav, muab kev txhawb nqa txhim khu kev qha rau kev tsim kho mining thiab engineering.
