Tuam Tshoj Prefabricated Steel Structure rau Rhiav Chaw Ua Haujlwm Tsev

1. Tshawb nrhiav qhov loj thiab qhov tiaj tiaj ntawm cov khoom. Txhua qhov ntev ntsuas ntawm 3 qhov ntawm cov khoom, thiab tus nqi nruab nrab ntawm 3 qhov chaw yog coj los ua tus nqi sawv cev ntawm qhov ntev. Qhov sib txawv ntawm cov khoom hlau yuav tsum tau xam raws li qhov ntev teev tseg hauv cov duab kos; tus nqi tso cai ntawm qhov sib txawv yuav tsum ua raws li cov kev cai ntawm nws cov qauv khoom. Kev hloov pauv ntawm cov nqaj hlau thiab cov tswv cuab truss suav nrog kev hloov pauv ntsug hauv lub dav hlau thiab kev hloov pauv sab nraud ntawm lub dav hlau, yog li qhov ncaj hauv ob qho kev taw qhia yuav tsum tau kuaj pom. Kev hloov pauv ntawm kem feem ntau suav nrog kev tilting thiab deflection ntawm lub cev kem.

Thaum kuaj xyuas, yuav tsum kuaj xyuas ua ntej. Yog tias muaj qhov tsis zoo lossis tsis ntseeg, yuav tsum siv hlau lossis hlau nyias nyias los ntswj rau ntawm cov fulcrums ntawm cov beams thiab trusses, thiab tom qab ntawd yuav tsum ntsuas qhov sag thiab qhov sib txawv ntawm txhua qhov; yuav tsum ntsuas qhov inclination ntawm kem nrog theodolite lossis lead. Kev ntsuas ntsug. Kev hloov pauv ntawm kem yuav tsum ntsuas los ntawm kev ncab hlau lossis hlau nyias nyias ntawm cov fulcrum ntawm tus tswv cuab.

2. Kev kuaj pom ntawm cov hlau xeb

Cov qauv hlau feem ntau yuav xeb nyob rau hauv cov chaw uas muaj dej noo, muaj dej thiab muaj kua qaub-alkali-ntsev corrosive. Xeb ua rau cov hlau tsis muaj zog thiab lub peev xwm bearing txo qis. Qhov degree ntawm xeb ntawm hlau tuaj yeem pom los ntawm kev hloov pauv ntawm nws qhov tuab ntawm ntu. Cov cuab yeej siv los ntes cov tuab ntawm hlau (xeb yuav tsum tau tshem tawm ua ntej) suav nrog ultrasonic thickness gauges (suab ceev teeb tsa, tus neeg sawv cev txuas) thiab vernier calipers. Lub ultrasonic thickness gauge siv txoj kev pulse reflection wave. Thaum ib lub ultrasonic wave kis los ntawm ib qho nruab nrab mus rau lwm qhov, nws yuav raug cuam tshuam ntawm qhov interface. Lub thickness gauge tuaj yeem ntsuas lub sijhawm txij li thaum lub probe tso tawm lub ultrasonic wave mus rau thaum nws tau txais lub interface reflection echo. Qhov ceev ntawm propagation ntawm ultrasonic waves hauv ntau yam khoom siv hlau paub, lossis txiav txim siab los ntawm kev ntsuas tiag tiag. Qhov tuab ntawm hlau yog xam los ntawm qhov ceev ntawm nthwv dej thiab lub sijhawm propagation. Rau cov digital ultrasonic thickness gauges, tus nqi tuab yuav raug tso tawm ncaj qha rau ntawm qhov screen.

3. Kev tshawb pom qhov tsis zoo ntawm cov khoom sib nqus

Lub hauv paus ntsiab lus ntawm kev tshuaj xyuas cov khoom sib nqus: Thaum muaj qhov tsis zoo hauv cov qauv hlau, xws li cov kab nrib pleb, cov khoom sib xyaw, cov qhov hws thiab lwm yam khoom tsis yog ferromagnetic, qhov tsis kam ntawm cov hlau nplaum loj heev thiab qhov permeability ntawm cov hlau nplaum qis, uas yuav ua rau kev faib tawm ntawm cov kab sib nqus ntawm lub zog hloov pauv. Cov kab sib nqus ntawm qhov tsis zoo tsis tuaj yeem hla dhau thiab yuav khoov rau qee qhov. Thaum cov qhov tsis zoo nyob rau ntawm lossis ze rau ntawm qhov chaw ntawm cov qauv hlau, lawv yuav xau los ntawm qhov chaw ntawm cov qauv hlau mus rau hauv huab cua los tsim cov teb sib nqus xau zoo.

Qhov muaj zog ntawm lub zog ntawm lub zog magnetizing thiab qhov cuam tshuam ntawm cov qhov tsis zoo ntawm qhov ntsug ntawm lub zog magnetizing. Cov hmoov sib nqus tuaj yeem siv los tso saib lossis ntsuas lub zog magnetic xau, yog li ntawd los tshuaj xyuas thiab txiav txim siab qhov muaj, qhov chaw thiab qhov loj ntawm cov qhov tsis zoo.