** 1. Vim li cas cov hlau tubing ntau siv dav dua cov yeeb nkab steel? **
Qhov kev ua koob tsheej no tsis yog tag nrho. Steel * Yeeb * feem ntau ntau siv ntau dua li steel * tubing * thaum txiav txim siab tag nrho tonnage thiab ntim, feem ntau yog {1} roj, roj). Txawm li cas los xij, Steel * Tubing * yog qhov sib npaug tsis tshua muaj zog thiab feem ntau nyiam rau cov ntawv thiab kev siv tshuab kho tshuab. Qhov tseem ceeb rau nws siv nyob rau hauv cov chaw no yog:
* ** Qeeb meej thiab ua ntu zus: ** Tubing yog tsim kom muaj ntau lub taub hau sab nraud (OD) thiab phab ntsa tuab. Qhov kev ua tau zoo no yog qhov tseem ceeb rau cov qauv tsim qauv thiab cov khoom siv cim tshuab.
* ** Kev thov kom zoo nkauj: ** Tubing feem ntau muaj qhov chaw ua tiav, ua rau nws muaj teeb meem uas muaj teeb meem zoo li hauv cov khoom vaj tse lossis rooj tog zaum.
* ** Lub zog siab dua - - Qhov hnyav, tuaj yeem tsim lub phab ntsa uas muaj zog, tuaj yeem tsim nws qhov hnyav piv rau ntau cov kav dej.
* ** Daim ntawv thov txheej txheem: ** Nws lub zog zoo ib yam thiab lub zog ua tubing lub neej ntawd kev xaiv rau txhua yam ntawm cov khoom lag luam thiab tsheb kauj vab mus rau cov cuab yeej siv thiab tsim kev tsim kho.
Hauv ntej, ** Yeeb nkab yog tus yeej rau txav kua **, thaum twg ** ** ** ** **
** 2. Dab tsi yog cov khoom siv uas nquag siv hauv cov yeeb nkab raug? **
Cov khoom siv feem ntau siv hauv cov yeeb nkab raug yog ** carbon steel **. Nws cov kev sib xyaw ntawm lub zog siab, zoo durability, kuj raug nqi, thiab veldability zoo heev ua rau kev xaiv cov kev siv ntau ntau. Qhov no suav nrog kev thauj cov dej, roj, roj nkev, thiab rau kev siv hauv cov kav dej kav dej thiab cov qauv kev txhawb nqa.
** 3. Dab tsi yog qhov feem ntau cov hlau siv hauv kev tsim khoom? **
Feem ntau hom steel siv thoob plaws txhua qhov chaw tsim khoom yog ** Tsawg - cov hlau carbon steel ** (kuj hu ua hlau me). Nws feem ntau muaj cov pa roj carbon tsawg dua 0.25%. Nws cov chaw muaj koob meej stems los ntawm nws zoo heev ductility (yooj yim ntawm kev sib sau thiab kev sib sau), weldability zoo, thiab tus nqi qis. Nws yog cov khoom siv ua haujlwm rau lub tsheb lub cev, cov kab teeb qauv qauv, cov ntawv hlau, cov ntawv hlau, thiab xaim xaim.
** 4. Qhov kev lag luam twg noj cov hlau feem ntau? **
Lub ** kev tsim kho thiab tsev kawm ntawv ** Kev lag luam yog, los ntawm ib qho tseem ceeb heev, cov neeg siv coob tshaj plaws ntawm cov hlau thoob ntiaj teb. Nws tso nyiaj ntau tshaj 50% ntawm lub ntiaj teb cov hlau xav tau. Hlau yog qhov tseem ceeb rau kev tsim kho nyob rau hauv daim ntawv rebar rau kev txhawb nqa cov pob zeb ua, cov kab teeb tsa rau cov vaj tse, cladding, thiab cov qauv sab hauv.
** 5. Dab tsi yog feem ntau cov khoom siv hlau siv hauv cov kav dej? **
Cov khoom siv hlau feem ntau siv tshwj xeeb rau cov kav dej yog ** carbon steel **. Txog cov tshuab nias thiab siab - cov xaim hluav taws xob, cov xaim hluav taws xob tshwj xeeb thiab ** rau welded carbon hlau yeeb nkab hauv ntiaj teb. Rau cov raj xa khoom thauj roj thiab roj, siab- lub zog, qis} aliece}} ali 5l ** yog cov feem ntau.
