** 1. Cov txheej txheem tsim qauv tsim tawm cov yeeb nkab muaj zog tshaj? **
Tsis muaj ib lo lus teb uas yog "lub zog" nyob ntawm cov ntawv thov tshwj xeeb thiab cov khoom siv tau ntsuas (piv txwv, tawg nrawm). Txawm li cas los xij, feem ntau hais lus:
* ** SEAMLESS YEEB ** yog feem ntau yog qhov muaj zog tshaj rau qhov siab -}} qhov kev siv siab. Vim tias nws tsis muaj tus qauv Weld, nws muaj cov qauv coj mus ib puag ncig nws ib ncig ntawm ib ncig thiab yog pub dawb los ntawm cov khoom siv weld tsis zoo. Qhov no ua rau nws xaiv qhov tseem ceeb rau cov kev pabcuam tseem ceeb hauv cov roj thiab roj, lub zog loj, thiab siab- siab hydraulic cov roj av.
* ** ERW (hluav taws xob tiv thaiv welded) yeeb nkab ** tau txhim kho kom zoo dua qub hauv qhov zoo. Niaj hnub ERW kav, tshwj xeeb yog tau siv HFW (siab- zaus vuam) cov txheej txheem muaj zog heev uas tuaj yeem ua kom muaj zog li cov hlau hauv paus. Txawm li cas los xij, cov cua sov -} kev cuam tshuam rau ntawm weld tuaj yeem yog qhov tsis muaj zog piv rau cov yeeb nkab uas tsis sib xws ntawm cov yeeb nkab.
Rau feem ntau cov qauv txheej txheem thiab qis - {{1} {- Zoo ERW cov yeeb nkab zoo kawg nkaus erw yeeb zoo thiab muaj zog. Rau qhov xav tau tshaj plaws, siab - Kev thov kev sib raug zoo, seamless yeeb yog qhov kev xaiv muaj zog tshaj plaws thiab tshaj plaws.
** 2. Dab tsi yog ERW YEEB? **
ERW sawv rau hluav taws xob tiv thaiv welded yeeb nkab. Nws yog hom cov yeeb nkab tsim los ntawm kev sau ua ib daim ntawv hlau (skelp) rau hauv ib qho cylindrical puab. Cov npoo tau nias ua ke thiab welded. Lub vuam cua sov yog tsim los ntawm kev hla lub siab- zaus hluav taws xob tam sim no los ntawm cov hlau. Cov kev tawm tsam ntawm cov hlau mus rau hluav taws xob tam sim no tsim kom muaj cua sov, uas fuses cov npoo ua ke yam tsis muaj kev siv cov tais. ERW cov yeeb nkab muaj txiaj ntsig los tsim thiab yog siv dav rau cov kua roj, roj av, thiab hauv cov ntawv thov txheej txheem.
** 3. Dab tsi yog hluav taws xob tiv thaiv welded yeeb nkab? **
Qhov no yog tib yam li cov lus nug dhau los. Hluav taws xob tiv thaiv welded (ERW) yeeb nkab yog kev tsim khoom tsim rau cov yeeb nkab steel. Cov kauj ruam tseem ceeb muaj:
1. Uncoiling ib txoj hlua ntawm cov hlau (skelp).
2. Tsim nws zuj zus mus rau hauv ib puag ncig raj siv cov saws ntawm yob.
3. Kev hla lub siab - zaus hluav taws xob tam sim no hla cov npoo kov kom sov lawv kom muaj kev sib dhos ntsuas kub.
4. Forging cov npoo rhuab ua ke hauv qab siab los tsim cov khoom - lub xeev weld.
Txoj kev no yog paub txog nws txoj kev ua haujlwm siab thiab zoo ib yam.
** 4. Dab tsi yog GI thiab ms? **
* ** MS ** sawv rau ** HLOB ** HLOB ** HLOB HLAU **. Nws yog hom carbon steel nrog cov ntsiab lus carbon qis, ua rau nws du ntaiv, malile, malleable, thiab tus mos. Nws yog cov qauv siv ntau tshaj plaws ntawm cov hlau siv rau kev tsim kho thiab kav dej vim tias nws muaj zog, pheej yig, thiab yooj yim rau kev ua haujlwm nrog. Txawm li cas los xij, nws yog qhov ntxim rau xeb thiab xeb yog tias tsis muaj kev tiv thaiv.
* ** GI ** sawv rau ** galvanized hlau **. Keeb kwm, nws raug xa mus rau cov ntawv teev cov hlau coated nrog zinc, tab sis niaj hnub no nws feem ntau yog hais txog ** galvanized steel **. Cov txheej txheem cuam tshuam cov hlua hlau me me nrog ib txheej ntawm zinc los tiv thaiv nws ntawm corrosion. Qhov no feem ntau ua los ntawm ntsw tus hlau ua rau hauv da dej ntawm molten zinc (kub- dip galvanizing). Gi kav yog yog li ntawd ms kav uas tau galvanized, ua rau lawv muaj kev tiv taus xeb. Lawv feem ntau yog siv rau kev muab khoom siv dej, fencing, thiab sab nraum zoov cov qauv.
** 5. Puas yog HFW tib yam li Erw? **
Yog lawm, HFW yog ib hom erw. Lawv tsis yog tib yam nkaus, tab sis HFW tau dhau los ua tus txheej txheem niaj hnub no rau ERW cov yeeb nkab.
* ** ERW (hluav taws xob tiv taus vuam) ** yog qeb dav dav rau cov kav dav hlau welded siv hluav taws xob kev siv hluav taws xob.
* ** HFW (siab - zaus vuam) ** Yog cov txheej txheem tshwj xeeb uas siv hauv cov pob hluav taws xob niaj hnub no. Nws siv lub siab heev - zaus tam sim no (ntau dua 70,000 wrancle {}- zaus erw txoj kev.
Yog li ntawd, thaum txhua hfw kav yog ERW kav, tsis yog txhua lub ERW kav yog ua nrog HFW cov txheej txheem. Thaum cov neeg xa mus rau "ERW cov yeeb nkab" niaj hnub no, lawv yuav luag tau xa mus rau HFW ntaus vim nws zoo dua qub.
