thawj lub tshuab hluav taws xob rauj tau tshwm sim hauv xyoo 1932, txawm hais tias nws cov progenitor tau tsim rov qab rau xyoo 1851. Tab sis qhov ntawd tsis yog lub ntsiab lus, tsuas yog rotary hammers tsis ntev los no tau dhau los ua ntau hom cuab yeej. Yuav luag txhua tsev neeg muaj qhov no, vim tias nws yog ib qho tseem ceeb ntawm kev pab kho txhua yam. Tab sis txhawm rau kom nws npaj txhij rau kev ua haujlwm txhua lub sijhawm, nws yog ib qho tsim nyog yuav tsum tau saib xyuas cov kev xaiv ntawm cov khoom rau nws ua ntej. Tam sim no peb mam li tham txog yuav ua li cas xaiv qhov xyaum zoo rau lub perforator.
Tam sim no, tsuas yog peb hom ntawm cov khoom no tau muab faib. Cov no yog SDS + thiab SDS Max laum khoom, nrog rau cov khoom tshiab thiab yog li tsis tshua nyiam SDS-sab saum toj. Txawm hais tias nws yuav tsum tau sau tseg ua ntej tias cov neeg tsim khoom xav txog qhov kev xyaum tshwj xeeb no kom zoo rau kev tsim cov qhov ntev txog 25 hli. Raws li rau thawj ob txoj kev xaiv, lawv feem ntau txawv ntawm lawv cov fastener tsim thiab lawv qhov siab tshaj plaws txoj kab uas hla. Lub ntsiab lus yog tias SDS +- cov no yog xyaum rau perforators nrog tag nrho qhov hnyav txog li tsib kilograms. Tab sis SDS Max twb tau tsim los rau cov cuab yeej hnyav.
Los ntawm txoj kev, yog tias koj xav tau, koj tuaj yeem nrhiav cov khoom siv tshwj xeeb thiab siv SDS Max ntawm cov khoom siv teeb, thiab SDS +, ntawm qhov tsis sib xws, ntawm cov khoom hnyav. Txawm li cas los xij, qhov no tsis tuaj yeem ua rau muaj qhov zoo. Nyob rau hauv thawj rooj plaub, hnav ntawm lub perforator yuav nce, thiab nyob rau hauv lub thib ob, hnav ntawm xyaum. Ob qho kev xaiv tsis zoo.
Yog tias koj xaiv ib lub laum rau lub perforator, ces ua ntej ntawm tag nrho cov koj yuav tsum xyuam xim rau nws tshem tawm cov sludge. Nyob rau lub sijhawm no, raws li qhov kev ntsuas no, kev xyaum tuaj yeem muab faib ua peb hom: nrog lub kaum me me ntawm inclination, nrog lub kaum sab xis loj ntawm inclination thiab auger. Qhov zoo tshaj plaws yog qhov kawg qhov hluav taws xob - auger. Qhov tseeb yog tias nws muaj peev xwm muab qhov ceev tshaj plaws tshem tawm ntawm cuttings, uas yog tshwj xeeb tshaj yog pab tau thaum drilling qhov tob. Txawm li cas los xij, yuav tsum tau saib xyuas kom ntseeg tau tias siv qhov sib sib zog nqus grooving.
Tam sim no cia peb kov ntawm kev lag luam ntawm qhov teeb meem. Qhov pheej yig tshaj laum rau lub perforator yuav yog ib lub tuam txhab Suav lossis cov tuam txhab hauv tsev tau teev npe raws li nws cov chaw tsim khoom. Tab sis, yuav cov khoom zoo li no, koj yuav tsum suav ua ntej ntawm nws qhov tsis muaj zog. Tsis tas li ntawd, kev xyaum pheej yig tsis yog ib txwm ua raws li txhua tus qauv. Txawm li cas los xij, qee qhov kev zam tuaj yeem suav tau. Nws zoo li qhov kev xyaum no yuav pab koj rau ib xyoos. Tab sis cov no yog qhov tshwj xeeb uas koj yuav tsum tsis txhob cia siab tiag tiag.
Tseem qhov zoo tshaj plawskev daws teeb meem yuav yog siv cov khoom lag luam los ntawm qeb thib ob tus nqi - cov no yog kev xyaum ua los ntawm cov tuam txhab paub zoo "rau cov neeg nyiam ua haujlwm". Lawv siv yuav luag zoo nyob hauv tsev.
Txawm li cas los xij, kuj tseem muaj cov nqi thib peb. Cov no yog cov kev xyaum ua haujlwm. Lawv yuav ua haujlwm rau lub sijhawm ntev heev, thaum lawv cov yam ntxwv kev ua haujlwm yuav tsum nyob rau theem siab tshaj. Txawm li cas los xij, kev yuav khoom zoo li no yuav tsum tau faib ib feem tseem ceeb ntawm cov nyiaj.
Tau coj mus rau hauv tus account cov ntaub ntawv saum toj no, nws yog qhov ua tau kom ntseeg siab mus rau hauv lub khw thiab xaiv qhov zoo tshaj plaws laum rau lub teb rauj.
