Cov khoom siv granite rau cov cuab yeej tshuaj xyuas cov ntsia hlau txhuas: Ib qho txuj ci tseem ceeb ntawm kev tshawb fawb txog cov khoom siv uas muaj lub neej ntev dua 12 xyoos dua li cov hlau cam khwb cia.

Hauv kev tshuaj xyuas cov khoom siv kho tshuab kom raug, qhov tseeb thiab kev ntseeg tau ntawm cov cuab yeej tshuaj xyuas cov ntsia hlau txhuas cuam tshuam ncaj qha rau kev tswj hwm qhov zoo ntawm cov khoom siv sib kis. Kev xaiv cov khoom siv ntawm cov khoom tseem ceeb ntawm cov cuab yeej ntes ntsia hlau txhuas yog qhov tseem ceeb rau kev txiav txim siab lub neej ua haujlwm thiab kev ua tau zoo ntawm cov khoom siv. Cov khoom siv granite tshwj xeeb rau cov cuab yeej tshuaj xyuas cov ntsia hlau txhuas, nrog nws cov txiaj ntsig zoo tshaj plaws ntawm kev tshawb fawb, tau ua tiav qhov kev tawg ntawm kev txuas lub neej ua haujlwm los ntawm 12 xyoos piv rau cov khoom siv hlau cam khwb cia, coj kev hloov pauv tshiab rau kev lag luam tshuaj xyuas qhov tseeb.

Cov kev txwv ntawm cov khoom siv hlau cam khwb cia
Hlau cam khwb cia tau ntev los ua cov khoom siv feem ntau siv rau kev tsim cov khoom siv ntawm cov cuab yeej kuaj ntsia hlau vim nws tus nqi qis thiab qee qhov kev ruaj khov. Txawm li cas los xij, hlau cam khwb cia muaj ntau qhov tsis zoo hauv kev siv. Ua ntej, hlau cam khwb cia muaj kev ruaj khov thermal tsis zoo. Thaum lub sijhawm ua haujlwm ntawm lub tshuab ntes ntsia hlau txhuas, cua sov los ntawm cov khoom siv nws tus kheej thiab kev hloov pauv ntawm qhov kub thiab txias ib puag ncig tuaj yeem ua rau muaj kev hloov pauv thermal ntawm cov khoom siv hlau cam khwb cia, cuam tshuam rau qhov tseeb ntawm kev ntes ntsia hlau txhuas. Thaum lub sijhawm siv ntau ntxiv, qhov cuam tshuam ntawm kev hloov pauv thermal yuav ua rau qhov yuam kev ntsuas txuas ntxiv mus. Qhov thib ob, qhov kev tiv thaiv hnav ntawm hlau cam khwb cia yog txwv. Thaum lub sijhawm rov ua dua ntawm cov ntsia hlau txhuas thiab kev ua haujlwm tshuaj xyuas, qhov chaw ntawm cov khoom siv hlau cam khwb cia yooj yim hnav vim kev sib txhuam, ua rau muaj kev nce ntxiv ntawm qhov haum thiab yog li txo qhov tseeb thiab kev ntseeg siab ntawm cov khoom siv tshuaj xyuas. Tsis tas li ntawd, hlau cam khwb cia muaj kev tiv thaiv corrosion tsis muaj zog. Hauv cov chaw noo noo lossis corrosive roj-muaj cov pa roj, cov khoom siv hlau cam khwb cia yooj yim xeb thiab xeb, ua rau lub neej ua haujlwm ntawm cov khoom siv luv luv.
Cov txiaj ntsig ntawm cov khoom siv science ntawm cov khoom granite
Granite, ua ib yam khoom zoo tshaj plaws rau cov khoom siv tshwj xeeb ntawm cov cuab yeej tshuaj xyuas cov hlau lead, muaj cov txiaj ntsig zoo ntawm lub cev. Nws cov qauv sab hauv yog ntom thiab sib xws, nrog rau qhov coefficient qis heev ntawm kev nthuav dav thermal, feem ntau yog li ntawm 5 txog 7 × 10⁻⁶ / ℃, thiab yuav luag tsis cuam tshuam los ntawm kev hloov pauv kub. Qhov no ua rau lub cuab yeej ntes hlau lead kom tswj tau qhov ntev thiab cov duab ntawm cov khoom granite txawm tias nyob rau hauv kev ua haujlwm ntev lossis kev hloov pauv tseem ceeb hauv qhov kub ib puag ncig, muab cov ntaub ntawv txhim khu kev qha rau kev ntes hlau lead thiab xyuas kom meej qhov tseeb ntawm cov ntaub ntawv ntsuas.
Hais txog kev hnav tsis kam, Mohs hardness ntawm granite tuaj yeem ncav cuag 6-7, uas siab dua li ntawm cov hlau cam khwb cia. Thaum lub sijhawm txav mus los ntawm cov ntsia hlau txhuas, qhov chaw ntawm cov khoom granite tsis yooj yim hnav thiab tuaj yeem tswj tau qhov siab-precision haum clearance, ua kom ntseeg tau tias lub sijhawm ntev ntawm kev kuaj pom cov ntsia hlau txhuas. Raws li cov ntaub ntawv ntawm cov ntaub ntawv siv tau, qhov tseeb poob qis ntawm cov ntsia hlau txhuas ntes siv cov khoom granite yog ntau dua 80% qeeb dua li ntawm cov khoom hlau cam khwb cia nyob rau hauv tib qho kev ua haujlwm.
Hais txog kev tiv thaiv xeb, granite yog pob zeb ntuj uas muaj cov khoom siv tshuaj ruaj khov thiab tsis cuam tshuam nrog cov tshuaj acidic lossis alkaline. Txawm tias nyob rau hauv cov chaw ua haujlwm nyuaj, cov khoom granite yuav tsis raug puas tsuaj los ntawm xeb, ua rau lub neej ua haujlwm ntev dua ntawm cov ntsia hlau ntes.
Cov txiaj ntsig zoo kawg nkaus ntawm daim ntawv thov thiab tus nqi lag luam
Qhov kev siv tau tiag tiag ntawm cov khoom siv granite tshwj xeeb rau cov khoom siv lead screw detectors yog qhov zoo kawg nkaus. Los ntawm kev tshawb nrhiav tom qab ntawm ntau lub tuam txhab tsim khoom siv tshuab, nws tau pom tias lub neej ua haujlwm nruab nrab ntawm cov khoom siv lead screw detectors siv cov khoom siv hlau cam khwb cia yog kwv yees li 8 xyoo, thaum tom qab siv cov khoom siv granite, lub neej ua haujlwm ntawm cov khoom siv lead screw detectors tuaj yeem ntev mus txog 20 xyoo, nce ntxiv tag nrho 12 xyoo. Qhov no tsis yog tsuas yog txo cov nqi rau cov tuam txhab los hloov cov khoom siv kuaj xwb, tab sis kuj tseem ua rau lub sijhawm tsis ua haujlwm los ntawm cov khoom siv tsis ua haujlwm thiab txhim kho kev ua haujlwm ntau lawm.
Los ntawm qhov kev xav ntawm kev txhim kho kev lag luam, kev siv cov khoom granite tau txhawb nqa kev nce qib ntawm cov thev naus laus zis kuaj pom tseeb. Nws lub neej ua haujlwm ntev heev thiab kev ua haujlwm ruaj khov muab kev lees paub txhim khu kev qha rau kev tshuaj xyuas cov ntsia hlau ua kom raug, pab kev lag luam tsim khoom siv tshuab tsim cov khoom zoo dua thiab txhim kho kev sib tw ntawm tag nrho kev lag luam.
Cov khoom siv granite tshwj xeeb rau cov cuab yeej tshuaj xyuas cov ntsia hlau tau ua tiav kov yeej qhov tsis zoo ntawm cov khoom siv hlau cam khwb cia vim yog qhov zoo ntawm kev tshawb fawb txog cov khoom siv, ua tiav kev nce ntxiv ntawm lub neej kev pabcuam. Yav tom ntej, nrog rau kev nce ntxiv ntawm qhov kev thov rau kev tshuaj xyuas qhov tseeb, cov khoom siv granite yuav tsum ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw thiab muab kev txhawb nqa zoo rau kev txhim kho kev lag luam tsim khoom raug.